LOCAL CLIMATOLOGICAL DATA Monthly Summary
March 2012
Station: Portsmouth, Virginia - KPWR Latitude: 36° 48' 04" N Longitude: 76° 19' 37" W Elevation (ground): 20 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind | Sun | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak | Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | I | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | n | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | d | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | e | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | x | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 78.2 | 50.4 | 64.3 | 67.1 | 53| 67| 1| 0|.........| 0| 0.00| 0.0| 29.94| 29.66|29.740|10.4| 7.3|225| 35|WSW| 0| 0| | |02| 60.0 | 45.9 | 53.0 | 52.0 | 46| 80| 12| 0|.........| 0| T | 0.0| 30.07| 29.72|29.931| 4.1| 3.6| 66| 23|ENE| 0| 0| | |03| 63.5 | 52.2 | 57.8 | 60.1 | 56| 87| 7| 0|..3......| 0| 0.96| 0.0| 29.73| 29.56|29.658| 5.8| 5.6|210| 27|SSW| 0| 0| | |04| 52.2 | 34.4 | 43.3 | 42.7 | 39| 89| 22| 0|1........| 0| 0.90| 0.0| 29.98| 29.68|29.758| 2.7| 1.5|358| 20| NE| 0| 0| | |05| 48.9 | 30.8*| 39.8*| 37.1 | 32| 81| 25| 0|1........| 0| 0.02| 0.0| 30.48| 29.97|30.126| 5.0| 3.2|279| 33| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 48.5 | 33.5 | 41.0 | 39.1 | 27| 62| 23| 0|.........| 0| 0.00| 0.0| 30.71| 30.51|30.634| 4.7| 2.7| 28| 23| N| 0| 0| | |07| 67.6 | 32.3 | 49.9 | 50.2 | 41| 72| 15| 0|.........| 0| 0.00| 0.0| 30.68| 30.47|30.585| 3.4| 3.3|197| 29| S| 0| 0| | |08| 74.0 | 49.0 | 61.5 | 61.1 | 52| 73| 3| 0|.........| 0| 0.00| 0.0| 30.46| 30.12|30.298| 5.9| 5.9|202| 36|SSW| 0| 0| | |09| 61.8 | 36.8 | 49.3 | 50.5 | 44| 80| 15| 0|1........| 0| 0.57| 0.0| 30.31| 30.05|30.161| 6.0| 2.1| 67| 28|SSW| 0| 0| | |10| 45.4 | 35.7 | 40.6 | 41.2 | 29| 61| 24| 0|.........| 0| 0.00| 0.0| 30.57| 30.33|30.489| 5.1| 4.7| 20| 23| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 61.4 | 30.9 | 46.2 | 45.4 | 33| 64| 19| 0|.........| 0| 0.00| 0.0| 30.61| 30.46|30.535| 1.1| 0.7|185| 16| SW| 0| 0| | |12| 72.0 | 40.1 | 56.0 | 55.2 | 45| 70| 9| 0|.........| 0| 0.00| 0.0| 30.46| 30.24|30.351| 3.7| 3.7|203| 27|SSW| 0| 0| | |13| 75.3 | 55.2 | 65.3 | 63.3 | 57| 79| 0| 0|.........| 0| 0.12| 0.0| 30.24| 30.08|30.164| 6.7| 6.7|203| 25|SSW| 0| 0| | |14| 78.3 | 55.1 | 66.7 | 66.7 | 55| 70| 0| 2|1........| 0| 0.00| 0.0| 30.22| 30.09|30.164| 3.3| 0.7|135| 22|SSW| 0| 0| | |15| 84.2*| 56.1 | 70.1 | 69.0 | 56| 66| 0| 5|.........| 0| 0.00| 0.0| 30.25| 30.14|30.202| 3.2| 3.2|204| 24|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 81.7 | 60.1 | 70.9 | 68.1 | 59| 76| 0| 6|1.3......| 0| 0.54| 0.0| 30.18| 30.08|30.150| 4.9| 2.8|220| 23|WSW| 0| 0| | |17| 69.1 | 52.2 | 60.7 | 59.6 | 55| 86| 4| 0|12.......| 0| 0.00| 0.0| 30.32| 30.15|30.232| 4.3| 4.3| 51| 20| NE| 0| 0| | |18| 64.3 | 52.1 | 58.2 | 57.0 | 53| 86| 7| 0|1........| 0| 0.00| 0.0| 30.33| 30.22|30.285| 4.0| 3.8| 46| 18| NE| 0| 0| | |19| 74.0 | 51.1 | 62.5 | 62.3 | 57| 84| 2| 0|.........| 0| 0.00| 0.0| 30.22| 30.13|30.180| 2.1| 1.8| 43| 19| NE| 0| 0| | |20| 76.0 | 54.8 | 65.4 | 65.0 | 60| 83| 0| 1|1........| 0| 0.00| 0.0| 30.25| 30.16|30.198| 2.0| 1.5| 48| 17|ENE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 77.9 | 61.5 | 69.7 | 66.5 | 63| 88| 0| 5|1.3......| 0| 1.01| 0.0| 30.30| 30.22|30.263| 1.3| 0.8|166| 17| SW| 0| 0| | |22| 79.4 | 60.3 | 69.8 | 67.4 | 63| 86| 0| 5|1......8.| 0| 0.21| 0.0| 30.29| 30.14|30.215| 1.3| 1.3|208| 18|SSW| 0| 0| | |23| 83.7 | 59.0 | 71.3*| 70.5 | 63| 78| 0| 7|1........| 0| 0.00| 0.0| 30.13| 29.96|30.045| 2.4| 2.3|214| 17|WSW| 0| 0| | |24| 73.7 | 60.7 | 67.2 | 65.9 | 63| 89| 0| 3|1.3......| 0| 0.61| 0.0| 29.97| 29.78|29.906| 2.3| 1.9|207| 19|SSE| 0| 0| | |25| 63.7 | 54.9 | 59.3 | 59.7 | 58| 95| 5| 0|12.......| 0| 0.16| 0.0| 29.80| 29.70|29.731| 3.8| 3.4| 19| 22| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 68.9 | 49.4 | 59.2 | 59.7 | 47| 66| 6| 0|.........| 0| 0.00| 0.0| 30.13| 29.72|29.851|10.3| 8.8|350| 29| NW| 0| 0| | |27| 54.6 | 41.2 | 47.9 | 47.2 | 29| 51| 17| 0|.........| 0| 0.00| 0.0| 30.34| 30.15|30.278| 6.8| 6.3|359| 25| N| 0| 0| | |28| 78.5 | 40.2 | 59.3 | 59.4 | 49| 69| 5| 0|.........| 0| 0.00| 0.0| 30.27| 29.76|29.989| 8.7| 8.6|204| 37|SSW| 0| 0| | |29| 72.3 | 54.5 | 63.4 | 65.0 | 52| 65| 1| 0|.........| 0| 0.00| 0.0| 30.01| 29.72|29.831| 6.6| 2.1| 14| 25| NW| 0| 0| | |30| 66.3 | 45.6 | 56.0 | 55.4 | 46| 72| 9| 0|.........| 0| 0.00| 0.0| 30.11| 29.87|30.017| 2.3| 1.8| 92| 19|SSE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 73.1 | 51.4 | 62.3 | 60.7 | 56| 86| 3| 0|.........| 0| 0.05| 0.0| 29.85| 29.69|29.770| 5.6| 2.0| 24| 24| NE| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2128.5|1487.4|------|------|---|----| 234| 34| Days | 5.15| 0.0| 30.71| 29.56|30.121| 4.5| 0.3|302| 37|SSW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|+1.09" OR 127% OF NORMAL +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 69.1| 48.2| 58.6 | 57.7 | 50|76.1|----|----|>.01 Inch 11|10.44| 0.5| 6 | 3 |------|----|----|---| 28 | 1+ | | + +8.8 +7.8 +8.3 +------+---+----+----+----+------------|-0.45" or 96% of normal +------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |>1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |2450| 36|Thunder 4|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 2| 1.28| 3- 4| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 3 | 0 |----|----| Clear 11 Partly Cloudy 15 Cloudy 5 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: Sunshine index is measured in Watts/m^2 and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.
  OBSERVER NOTES:
   March 2012 was the warmest March in the station database to 1977. 
   The top 5 warmest March's include: 1) 58.6 2012 2) 54.0 1977 3) 53.9 1991 4) TIE 53.7 1985 and 1990.

   FRONTAL PASSAGES: 1, 2 WRMFROP,5,9,13 WRMFROP,16,17,27,31
STATION RECORDS:
1 - TEMPERATURE Max 78 [previous 75 1991]
3 - RAINFALL 0.96" [prev 0.91 1978)
15 - TEMP TIED Max 84 [prev 1990]
19 - TEMP Max Min 55 [prev 52 2007]
21 - TEMP Max 78 [prev 76 1978]
21 - TEMP Max Min 62 [58 2003]
22 - TEMP Max 79 [prev 76 1991]
22 - TEMP Max Min 60 [52 2010]
23 - TEMP Max 84 [prev 83 2007]
23 - TEMP TIED Max Min 59 [p 2007]
24 - TEMP Max Miin 61 [ p 58 1994]
25 - TEMP Max Min 55 [ p54 1988] MONTHLY AVERAGE MAXIMUM TEMP OF 69.1 WAS 8.8 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 48.2 WAS 7.8 ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 58.6 WAS 8.3 ABOVE NORMAL. MAXIMUM TEMP: 84 ON THE 15TH, 23RD MINIMUM TEMP: 31 ON THE 5TH, 11TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 0 MINIMUM <= 32: 3 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 228.0 COOLING DEGREE DAYS: 31.0 DAYS WITH HEATING DEGREE DAYS: 22 DAYS WITH COOLING DEGREE DAYS: 8 PRECIP TOTAL OF 5.15" WAS 1.09" ABOVE NORMAL (127% OF NORMAL). GREATEST DAILY RAINFALL: 1.01 ON THE 21ST GREATEST 24-HOUR RAINFALL: 1.28" ON THE 3RD-4TH DAYS WITH MEASUREABLE PRECIP: 11 OR 35.48% AVERAGE DAILY PRECIP: 0.17" NORMAL DAILY PRECIP: 0.13" DAYS WITH PRECIP >= 0.01" 11 DAYS WITH PRECIP >= 0.10" 9 DAYS WITH PRECIP >= 0.50" 6 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 4 NUMBER OF THUNDERSTORMS: 4 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" SEASONAL SNOWFALL 2011-2012: 0.5" CLOUDY DAYS: 5 PARTLY CLOUDY DAYS: 15 SUNNY/CLEAR DAYS: 11 DAYS WITH F/GF: 13 DAYS WITH DENSE FOG: 2 DAYS WITH FROST: 1 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 59.4 WAS 5.7 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 40.1 WAS 4.8 ABOVE NORMAL. YEARLY AVERAGE TEMP OF 49.8 WAS 5.3 ABOVE NORMAL. MAXIMUM TEMP: 84 ON MARCH 15TH AND 23RD MINIMUM TEMP: 21 ON JANUARY 4TH & FEBRUARY 13TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 0 MINIMUM <= 32: 21 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 1418.0 COOLING DEGREE DAYS: 32.5 DAYS WITH HEATING DEGREE DAYS: 81 DAYS WITH COOLING DEGREE DAYS: 9 PRECIP TOTAL OF 10.44" WAS -0.45" BELOW NORMAL ( 96% OF NORMAL). GREATEST DAILY RAINFALL: 1.01" ON MARCH 21ST GREATEST 24-HOUR RAINFALL: 1.28" ON MARCH 3RD-4TH DAYS WITH MEASUREABLE PRECIP: 36 OF 91 OR 39.56% AVERAGE DAILY PRECIP: 0.11" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 36 DAYS WITH PRECIP >= 0.10" 23 DAYS WITH PRECIP >= 0.50" 11 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 6 NUMBER OF THUNDERSTORMS: 6 DAYS WITH SNOW (calendar year 2012): 4 SNOWFALL TOTAL (calendar year 2012): 0.5" SEASONAL SNOW 2011-2012 (beginning November 2011): 0.5" CLOUDY DAYS: 15 PARTLY CLOUDY DAYS: 46 SUNNY/CLEAR DAYS: 30 DAYS WITH F/GF: 13 DAYS WITH DENSE FOG: 4 DAYS WITH FROST: 14
OBSERVATIONS AT 3-HOUR INTERVALS
March 2012: Portsmouth, Virginia - KPWR
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 1 | MAR 2 | MAR 3 | | | | | |01| |29.75| 0.00| 63| 60| 93|20| 10| 29| |29.97| 0.00| 50| 44| 80|04| 7| 20| |29.69| 0.00| 61| 59| 93|20| 5| 22| |04| |29.71| 0.00| 63| 61| 93|20| 12| 25| |30.00| 0.00| 47| 42| 82|06| 5| 14| |29.62| 0.00| 62| 59| 89|20| 5| 16| |07| |29.73| 0.00| 63| 60| 92|20| 7| 22| |30.02| 0.00| 46| 41| 83|06| 6| 16| |29.63| 0.27| 62| 61| 95|20| 10| 25| |10| |29.73| 0.00| 69| 61| 74|20| 12| 27| |30.07| 0.00| 53| 43| 68|06| 5| 15| |29.56| 0.03| 61| 60| 95|20| 5| 19| |13| |29.67| 0.00| 77| 52| 42|24| 15| 35| |29.96| 0.00| 56| 47| 70|06| 4| 16| |29.61| 0.00| 63| 59| 85|24| 6| 18| |16| |29.67| 0.00| 77| 44| 31|24| 13| 27| |29.88| 0.00| 55| 49| 79|06| 4| 12| |29.67| 0.00| 59| 55| 86|20| 6| 20| |19| |29.76| 0.00| 68| 40| 36|29| 4| 16| |29.82| 0.00| 53| 49| 87|02| 0| 6| |29.71| 0.00| 57| 50| 80|24| 4| 12| |22| |29.89| 0.00| 53| 47| 80|06| 10| 20| |29.77| 0.00| 55| 53| 91|20| 0| 10| |29.71| 0.00| 55| 45| 71|29| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 4 | MAR 5 | MAR 6 | | | | | |01| |29.73| 0.05| 50| 47| 89|24| 0| 6| |30.00| 0.00| 33| 30| 89|24| 0| 5| |30.51| 0.00| 36| 25| 66|31| 6| 16| |04| |29.70| 0.12| 45| 41| 85|31| 4| 12| |30.03| 0.00| 31| 28| 87|20| 4| 12| |30.55| 0.00| 34| 24| 66|31| 6| 15| |07| |29.69| 0.09| 43| 40| 90|00| 5| 15| |30.04| 0.00| 33| 30| 88|00| 0| 0| |30.64| 0.00| 34| 24| 67|04| 5| 16| |10| |29.74| 0.04| 41| 39| 91|04| 5| 15| |29.98| 0.01| 41| 36| 84|13| 0| 12| |30.70| 0.00| 40| 26| 58|04| 10| 20| |13| |29.71| 0.00| 42| 40| 91|04| 0| 10| |29.97| 0.00| 47| 39| 73|20| 10| 24| |30.68| 0.00| 43| 27| 53|04| 5| 16| |16| |29.72| 0.00| 44| 40| 86|11| 0| 10| |30.18| 0.00| 39| 32| 78|31| 16| 29| |30.63| 0.00| 48| 30| 49|13| 4| 12| |19| |29.82| 0.00| 39| 37| 91|09| 0| 6| |30.31| 0.00| 37| 31| 77|29| 4| 12| |30.64| 0.00| 41| 31| 67|15| 4| 13| |22| |29.92| 0.00| 37| 35| 92|00| 0| 0| |30.42| 0.00| 36| 31| 83|31| 4| 12| |30.68| 0.00| 37| 28| 70|15| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 7 | MAR 8 | MAR 9 | | | | | |01| |30.68| 0.00| 35| 29| 78|00| 0| 0| |30.46| 0.00| 51| 47| 86|11| 0| 6| |30.11| 0.00| 61| 55| 80|20| 7| 28| |04| |30.65| 0.00| 34| 29| 83|00| 0| 0| |30.41| 0.00| 50| 46| 88|20| 0| 5| |30.05| 0.00| 60| 56| 87|20| 6| 20| |07| |30.65| 0.00| 33| 30| 87|15| 0| 4| |30.43| 0.00| 49| 46| 90|18| 0| 5| |30.06| 0.11| 59| 57| 94|20| 5| 15| |10| |30.65| 0.00| 54| 44| 69|20| 4| 15| |30.38| 0.00| 67| 56| 70|20| 7| 25| |30.18| 0.01| 46| 43| 90|04| 11| 23| |13| |30.57| 0.00| 67| 50| 55|18| 10| 29| |30.27| 0.00| 71| 54| 55|20| 12| 33| |30.18| 0.00| 48| 39| 71|04| 12| 24| |16| |30.51| 0.00| 66| 50| 56|20| 11| 29| |30.20| 0.00| 71| 54| 54|20| 12| 32| |30.19| 0.00| 48| 36| 63|04| 5| 16| |19| |30.51| 0.00| 58| 49| 70|20| 0| 7| |30.16| 0.00| 65| 55| 69|20| 4| 16| |30.22| 0.00| 44| 35| 70|06| 0| 4| |22| |30.51| 0.00| 54| 48| 80|18| 0| 12| |30.12| 0.00| 63| 54| 73|20| 7| 31| |30.28| 0.00| 39| 34| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 10 | MAR 11 | MAR 12 | | | | | |01| |30.33| 0.00| 36| 33| 88|06| 0| 6| |30.58| 0.00| 34| 28| 76|09| 0| 4| |30.46| 0.00| 43| 36| 78|20| 0| 4| |04| |30.36| 0.00| 42| 33| 70|00| 5| 15| |30.56| 0.00| 33| 27| 80|00| 0| 0| |30.40| 0.00| 40| 37| 86|20| 0| 6| |07| |30.47| 0.00| 40| 27| 59|33| 6| 21| |30.57| 0.00| 31| 27| 85|00| 0| 0| |30.43| 0.00| 40| 37| 87|22| 0| 4| |10| |30.55| 0.00| 42| 28| 56|00| 11| 22| |30.61| 0.00| 44| 34| 68|18| 0| 7| |30.42| 0.00| 52| 47| 83|20| 6| 16| |13| |30.53| 0.00| 44| 28| 52|04| 10| 21| |30.58| 0.00| 54| 36| 49|11| 4| 11| |30.37| 0.00| 68| 50| 54|20| 6| 20| |16| |30.53| 0.00| 45| 29| 54|04| 7| 17| |30.48| 0.00| 60| 38| 43|22| 4| 16| |30.27| 0.00| 72| 50| 46|20| 7| 25| |19| |30.55| 0.00| 41| 27| 58|04| 4| 12| |30.46| 0.00| 56| 38| 50|20| 4| 16| |30.24| 0.00| 67| 47| 49|20| 7| 24| |22| |30.56| 0.00| 38| 26| 61|04| 0| 7| |30.46| 0.00| 46| 35| 63|20| 0| 5| |30.26| 0.00| 59| 50| 73|20| 0| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 13 | MAR 14 | MAR 15 | | | | | |01| |30.24| 0.00| 57| 50| 76|20| 5| 19| |30.12| 0.00| 63| 58| 85|20| 6| 19| |30.22| 0.00| 58| 50| 76|20| 0| 10| |04| |30.20| 0.00| 58| 51| 77|20| 7| 21| |30.09| 0.00| 61| 57| 87|20| 5| 15| |30.21| 0.00| 58| 53| 85|20| 0| 11| |07| |30.22| 0.05| 55| 53| 92|20| 7| 19| |30.13| 0.00| 57| 54| 92|00| 0| 0| |30.23| 0.00| 56| 53| 90|20| 0| 10| |10| |30.22| 0.00| 58| 56| 93|20| 7| 21| |30.19| 0.00| 66| 59| 80|24| 4| 10| |30.25| 0.00| 66| 61| 82|20| 4| 12| |13| |30.17| 0.00| 68| 61| 79|20| 12| 25| |30.20| 0.00| 76| 57| 52|04| 5| 16| |30.22| 0.00| 82| 61| 49|20| 11| 22| |16| |30.09| 0.00| 75| 63| 65|20| 10| 22| |30.17| 0.00| 78| 50| 37|04| 5| 13| |30.16| 0.00| 84| 57| 40|20| 6| 20| |19| |30.08| 0.00| 71| 60| 70|20| 6| 21| |30.19| 0.00| 72| 55| 56|15| 4| 12| |30.16| 0.00| 77| 55| 47|20| 5| 20| |22| |30.12| 0.00| 65| 58| 80|20| 4| 12| |30.22| 0.00| 62| 51| 67|15| 0| 6| |30.17| 0.00| 70| 56| 62|11| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 16 | MAR 17 | MAR 18 | | | | | |01| |30.18| 0.00| 66| 56| 70|20| 4| 17| |30.16| 0.00| 60| 59| 94|06| 0| 4| |30.31| 0.00| 52| 51| 94|04| 5| 14| |04| |30.15| 0.00| 63| 57| 80|20| 4| 17| |30.15| 0.00| 58| 56| 93|33| 0| 7| |30.28| 0.00| 53| 50| 92|04| 4| 11| |07| |30.17| 0.00| 63| 58| 84|20| 6| 19| |30.18| 0.00| 58| 56| 93|04| 0| 7| |30.31| 0.00| 53| 51| 92|04| 4| 11| |10| |30.18| 0.00| 69| 62| 80|20| 10| 20| |30.26| 0.00| 60| 57| 90|06| 5| 15| |30.33| 0.00| 57| 53| 87|33| 5| 14| |13| |30.14| 0.00| 79| 63| 57|24| 7| 23| |30.26| 0.00| 68| 58| 71|06| 5| 15| |30.32| 0.00| 63| 56| 80|06| 6| 17| |16| |30.09| 0.00| 80| 62| 54|24| 6| 18| |30.25| 0.00| 63| 55| 76|04| 11| 20| |30.26| 0.00| 64| 57| 78|04| 6| 16| |19| |30.13| 0.23| 60| 57| 89|04| 6| 19| |30.26| 0.00| 55| 51| 86|04| 6| 16| |30.24| 0.00| 59| 54| 82|04| 4| 12| |22| |30.17| 0.00| 62| 60| 93|04| 0| 6| |30.30| 0.00| 52| 50| 92|06| 5| 16| |30.24| 0.00| 56| 52| 86|29| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.04 | 0.07 | 0.11 | 0.14 | 0.21 | 0.32 | 0.41 | 0.47 | 0.55 | 0.65 | 0.81 | 1.00 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 03 | 03 | 21 | 21 | 21 | 21 | 21 | 21 | 03 | 03 | 21 | 21 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0704 | 0709 | 1615 | 1619 | 1630 | 1844 | 1700 | 1718 | 0754 | 0800 | 1843 | 1858 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.
OBSERVATIONS AT 3-HOUR INTERVALS
March 2012: Portsmouth, Virginia - KPWR
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 19 | MAR 20 | MAR 21 | | | | | |01| |30.21| 0.00| 54| 51| 90|02| 0| 5| |30.17| 0.00| 60| 58| 91|04| 0| 4| |30.24| 0.00| 62| 59| 90|13| 0| 5| |04| |30.19| 0.00| 52| 50| 93|02| 0| 5| |30.16| 0.00| 57| 55| 92|00| 0| 0| |30.24| 0.00| 62| 60| 93|13| 0| 4| |07| |30.21| 0.00| 51| 49| 93|02| 0| 5| |30.19| 0.00| 55| 53| 93|00| 0| 0| |30.28| 0.00| 63| 61| 95|13| 0| 6| |10| |30.22| 0.00| 61| 58| 88|04| 0| 7| |30.24| 0.00| 64| 61| 90|33| 4| 10| |30.30| 0.01| 65| 64| 95|13| 0| 10| |13| |30.19| 0.00| 73| 64| 74|06| 4| 11| |30.23| 0.00| 71| 63| 76|04| 5| 14| |30.29| 0.00| 76| 67| 75|13| 4| 14| |16| |30.13| 0.00| 73| 64| 72|04| 7| 16| |30.17| 0.00| 76| 64| 67|06| 5| 17| |30.23| 0.00| 77| 66| 69|20| 5| 15| |19| |30.14| 0.00| 70| 62| 78|04| 5| 15| |30.18| 0.00| 72| 63| 74|13| 5| 15| |30.24| 0.41| 65| 63| 92|00| 0| 10| |22| |30.17| 0.00| 63| 60| 87|04| 0| 5| |30.23| 0.00| 65| 61| 85|13| 0| 5| |30.28| 0.00| 64| 62| 94|11| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 22 | MAR 23 | MAR 24 | | | | | |01| |30.28| 0.01| 63| 61| 94|20| 0| 6| |30.13| 0.00| 62| 60| 91|20| 4| 11| |29.97| 0.00| 67| 62| 84|22| 0| 12| |04| |30.25| 0.00| 61| 59| 94|00| 0| 0| |30.10| 0.00| 61| 59| 94|20| 0| 11| |29.94| 0.00| 64| 60| 87|20| 4| 15| |07| |30.27| 0.00| 61| 59| 95|20| 0| 5| |30.09| 0.00| 59| 58| 95|20| 0| 7| |29.94| 0.00| 61| 58| 90|22| 0| 5| |10| |30.28| 0.00| 67| 65| 93|20| 5| 16| |30.10| 0.00| 66| 65| 96|20| 4| 12| |29.95| 0.00| 68| 64| 87|20| 4| 12| |13| |30.22| 0.00| 77| 67| 70|20| 4| 17| |30.05| 0.00| 80| 67| 64|20| 5| 16| |29.92| 0.00| 73| 66| 80|27| 4| 11| |16| |30.14| 0.00| 77| 65| 66|13| 0| 14| |29.98| 0.00| 84| 66| 56|20| 4| 17| |29.88| 0.13| 68| 66| 92|20| 4| 11| |19| |30.14| 0.00| 69| 65| 88|13| 0| 11| |29.96| 0.00| 80| 64| 59|20| 4| 14| |29.85| 0.00| 64| 62| 93|13| 0| 7| |22| |30.16| 0.00| 65| 61| 87|20| 0| 10| |29.99| 0.00| 71| 64| 78|20| 0| 12| |29.83| 0.06| 63| 62| 95|13| 4| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 25 | MAR 26 | MAR 27 | | | | | |01| |29.80| 0.00| 63| 61| 95|18| 0| 10| |29.74| 0.00| 55| 53| 93|33| 6| 17| |30.15| 0.00| 49| 33| 55|00| 11| 25| |04| |29.73| 0.00| 61| 60| 96|13| 0| 4| |29.72| 0.00| 56| 53| 92|31| 5| 16| |30.21| 0.00| 45| 31| 58|04| 10| 23| |07| |29.71| 0.00| 60| 59| 96|13| 0| 5| |29.76| 0.00| 58| 54| 88|00| 7| 20| |30.28| 0.00| 41| 28| 58|00| 10| 22| |10| |29.73| 0.00| 62| 60| 96|33| 4| 12| |29.82| 0.00| 62| 54| 76|00| 11| 21| |30.34| 0.00| 44| 27| 51|00| 11| 22| |13| |29.73| 0.00| 61| 59| 93|04| 6| 18| |29.84| 0.00| 67| 42| 39|31| 14| 27| |30.34| 0.00| 48| 25| 40|00| 7| 17| |16| |29.70| 0.00| 59| 57| 94|04| 11| 22| |29.86| 0.00| 67| 42| 40|31| 14| 26| |30.29| 0.00| 53| 26| 35|31| 6| 18| |19| |29.72| 0.01| 56| 55| 95|04| 6| 16| |29.95| 0.00| 59| 37| 43|00| 12| 25| |30.28| 0.00| 53| 29| 40|33| 4| 12| |22| |29.76| 0.00| 55| 53| 93|00| 6| 19| |30.07| 0.00| 53| 39| 57|04| 11| 28| |30.30| 0.00| 45| 35| 68|13| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 28 | MAR 29 | MAR 30 | | | | | |01| |30.27| 0.00| 41| 33| 72|13| 0| 5| |29.75| 0.00| 67| 59| 76|20| 7| 20| |30.02| 0.00| 52| 46| 79|13| 0| 11| |04| |30.20| 0.00| 41| 36| 84|20| 0| 14| |29.73| 0.00| 65| 58| 78|22| 5| 16| |30.03| 0.00| 48| 43| 84|00| 0| 0| |07| |30.17| 0.00| 42| 38| 87|20| 4| 15| |29.76| 0.00| 61| 56| 84|24| 0| 11| |30.05| 0.00| 46| 42| 86|00| 0| 0| |10| |30.08| 0.00| 57| 46| 65|20| 12| 30| |29.80| 0.00| 70| 54| 56|24| 7| 20| |30.11| 0.00| 56| 45| 65|04| 4| 11| |13| |29.94| 0.00| 71| 55| 57|20| 14| 36| |29.85| 0.00| 67| 52| 59|04| 11| 22| |30.05| 0.00| 63| 47| 56|04| 4| 16| |16| |29.81| 0.00| 78| 59| 52|20| 14| 32| |29.85| 0.00| 68| 51| 53|04| 10| 21| |29.98| 0.00| 65| 50| 59|11| 4| 15| |19| |29.76| 0.00| 75| 60| 59|20| 12| 28| |29.90| 0.00| 62| 46| 56|04| 7| 20| |29.96| 0.00| 57| 48| 72|15| 4| 19| |22| |29.81| 0.00| 71| 59| 68|20| 10| 26| |29.98| 0.00| 57| 46| 65|04| 0| 13| |29.93| 0.00| 56| 49| 78|11| 0| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 31 | | | | | | | |01| |29.85| 0.00| 56| 51| 84|11| 0| 5| | | |04| |29.79| 0.00| 54| 51| 89|15| 0| 4| | | |07| |29.78| 0.00| 59| 57| 93|20| 5| 17| | | |10| |29.77| 0.00| 64| 61| 90|24| 4| 14| | | |13| |29.73| 0.00| 73| 64| 75|29| 6| 16| | | |16| |29.69| 0.01| 71| 63| 75|31| 5| 15| | | |19| |29.77| 0.00| 55| 52| 89|04| 12| 24| | | |22| |29.82| 0.00| 52| 50| 91|04| 10| 19| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
WEATHER NOTES SUMMARY BY HOURS
+--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |01| |30.114| 54| 49| 83| 2.5| 23 | 0.7| |04| |30.089| 52| 48| 86| 2.8| 22 | 0.8| |07| |30.111| 52| 48| 88| 2.9| 22 | 0.5| |10| |30.129| 58| 52| 80| 5.7| 25 | 0.9| |13| |30.099| 65| 53| 65| 7.3| 22 | 0.9| |16| |30.061| 66| 52| 62| 7.0| 26 | 0.9| |19| |30.080| 60| 49| 71| 4.9| 06 | 1.1| |22| |30.114| 55| 49| 80| 2.8| 06 | 1.2| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
March 2012: Portsmouth, Virginia - KPWR
---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | |0.20|0.27|0.37|0.05|0.03| |0.01| | |0.01| | | | | | | |0.02|03 04| |0.05|0.05|0.01|0.12|0.09|0.10|0.09|0.09|0.09|0.04|0.02|0.01| | | | |0.13|0.01| | | | | |04 05| | | | | | | | | | |0.01| |0.01| | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | |0.03|0.11|0.28|0.13|0.01|0.01| | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | |0.04|0.05|0.01|0.01| |0.01| | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | |0.03|0.23|0.27|0.01| | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | |0.01| | | | | | |0.40|0.19|0.41| | | | |21 22| |0.01| | | | | | | | | | | | | | | |0.01|0.19| | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | |0.01|0.06|0.13|0.02|0.03| |0.08|0.09|0.06|0.13|24 25| | | | | | | | |0.01| | | | | |0.03|0.08| | | |0.01| |0.02| |0.01|25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | |0.01| | | | | | | | | |0.01| |0.02| | |0.01| | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.06|0.05|0.01|0.12|0.09|0.38|0.52|0.76|0.28|0.10|0.04|0.03|0.00|0.04|0.15|0.14|0.56|0.47|0.65|0.35|0.13|0.06|0.16|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)