LOCAL CLIMATOLOGICAL DATA Monthly Summary
March 2010
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| 53.3 | 34.1 | 43.7 | 43.3 | 31| 62| 21| 0|.........| 0| 0.00| 0.0| 29.97| 29.86|29.911| 7.2| 5.9|297| 30| NW| 0| 0| | |02| 44.5 | 32.8 | 38.7 | 39.1 | 33| 80| 26| 0|1........|.2| 0.57| 0.2| 29.97| 29.44|29.806| 6.9| 6.7| 42| 32| NE| 0| 0| | |03| 39.0 | 32.4 | 35.7*| 36.6 | 35| 94| 29| 0|1........|.2| 0.89| 0.2| 29.69| 29.37|29.528|12.4|11.3|340| 35| N| 0| 0| | |04| 46.7 | 35.2 | 41.0 | 40.4 | 30| 68| 24| 0|.........| 0| 0.01| 0.0| 29.91| 29.70|29.787| 9.7| 9.4|314| 27| NW| 0| 0| | |05| 45.3 | 35.0 | 40.2 | 40.1 | 28| 62| 25| 0|.........| 0| 0.00| 0.0| 30.08| 29.92|29.995| 7.4| 6.3|334| 24| NW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 47.0 | 32.1 | 39.5 | 40.5 | 28| 62| 25| 0|.........| 0| 0.00| 0.0| 30.20| 30.09|30.154| 7.0| 6.6|355| 24| N| 0| 0| | |07| 58.3 | 29.6*| 44.0 | 43.3 | 28| 57| 21| 0|.........| 0| 0.00| 0.0| 30.22| 30.03|30.125| 2.3| 1.6|319| 18| NW| 0| 0| | |08| 59.9 | 32.5 | 46.2 | 46.4 | 29| 53| 18| 0|.........| 0| 0.00| 0.0| 30.04| 29.94|29.990| 2.8| 1.8| 18| 23| NE| 0| 0| | |09| 63.0 | 31.8 | 47.4 | 47.6 | 33| 60| 17| 0|1........| 0| 0.00| 0.0| 30.05| 29.96|29.997| 1.8| 1.6| 53| 15| N| 0| 0| | |10| 72.3 | 41.1 | 56.7 | 57.0 | 46| 68| 8| 0|.........| 0| T | 0.0| 29.99| 29.92|29.946| 2.3| 2.2|217| 20|WSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 69.2 | 53.7 | 61.4 | 60.2 | 56| 88| 3| 0|1........| 0| 0.20| 0.0| 30.00| 29.89|29.945| 1.4| 1.3|157| 17| SE| 0| 0| | |12| 63.6 | 55.2 | 59.4 | 58.2 | 57| 97| 5| 0|1........| 0| 0.75| 0.0| 29.88| 29.40|29.727| 3.7| 3.4| 77| 35| NE| 0| 0| | |13| 69.2 | 50.4 | 59.8 | 58.8 | 56| 93| 5| 0|1........| 0| 0.30| 0.0| 29.40| 29.30|29.357| 3.4| 2.4|216| 28|SSW| 0| 0| | |14| 57.0 | 45.0 | 51.0 | 51.0 | 48| 90| 14| 0|1........| 0| 0.00| 0.0| 29.57| 29.37|29.452| 5.2| 4.4|239| 23|WSW| 0| 0| | |15| 50.6 | 46.6 | 48.6 | 48.7 | 46| 89| 16| 0|1........| 0| 0.03| 0.0| 29.78| 29.55|29.622| 8.3| 7.8|322| 29| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 53.3 | 40.2 | 46.8 | 47.1 | 40| 78| 18| 0|1........| 0| 0.02| 0.0| 30.05| 29.79|29.930| 9.0| 8.7| 2| 28| N| 0| 0| | |17| 63.8 | 33.8 | 48.8 | 48.0 | 36| 66| 16| 0|.........| 0| 0.00| 0.0| 30.06| 29.94|30.015| 1.5| 0.4| 59| 17| NE| 0| 0| | |18| 63.8 | 40.4 | 52.1 | 51.9 | 38| 61| 13| 0|.........| 0| 0.00| 0.0| 29.92| 29.78|29.847| 2.9| 2.7| 40| 19| NE| 0| 0| | |19| 69.3 | 37.4 | 53.4 | 53.9 | 38| 59| 12| 0|.........| 0| 0.00| 0.0| 29.99| 29.80|29.887| 2.5| 2.1| 0| 19|NNW| 0| 0| | |20| 77.9*| 43.5 | 60.7 | 60.2 | 43| 56| 4| 0|.........| 0| 0.00| 0.0| 30.06| 29.99|30.022| 1.9| 1.9|198| 16| SE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 75.3 | 48.4 | 61.9*| 61.6 | 51| 69| 3| 0|.........| 0| T | 0.0| 30.11| 29.98|30.051| 3.5| 3.1|184| 20|SSW| 0| 0| | |22| 66.1 | 52.2 | 59.2 | 61.4 | 58| 88| 6| 0|1........| 0| 0.12| 0.0| 29.97| 29.66|29.779| 4.3| 3.8|162| 24|SSE| 0| 0| | |23| 60.1 | 41.4 | 50.8 | 50.7 | 42| 72| 14| 0|.........| 0| T | 0.0| 29.81| 29.63|29.668| 8.6| 8.0|226| 31|WSW| 0| 0| | |24| 68.4 | 44.2 | 56.3 | 56.3 | 43| 62| 9| 0|.........| 0| 0.00| 0.0| 30.05| 29.84|29.965| 6.5| 4.7|274| 29|WSW| 0| 0| | |25| 74.9 | 46.8 | 60.8 | 61.0 | 51| 70| 4| 0|.........| 0| 0.00| 0.0| 30.04| 29.70|29.925| 4.4| 4.4|195| 25| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 65.2 | 41.1 | 53.1 | 53.9 | 51| 92| 12| 0|1........| 0| 0.63| 0.0| 30.07| 29.56|29.716| 8.6| 2.9| 14| 33|NNW| 0| 0| | |27| 47.2 | 38.6 | 42.9 | 42.4 | 36| 77| 22| 0|.........| 0| 0.00| 0.0| 30.35| 30.08|30.273| 7.0| 7.0| 47| 26| NE| 0| 0| | |28| 70.1 | 39.5 | 54.8 | 54.4 | 48| 79| 10| 0|.........| 0| 0.00| 0.0| 30.33| 29.84|30.095| 4.5| 4.1|143| 28|SSE| 0| 0| | |29| 62.4 | 52.5 | 57.5 | 56.1 | 55| 97| 7| 0|1.3......| 0| 2.86| 0.0| 29.80| 29.58|29.678| 4.8| 2.1| 33| 23| S| 0| 0| | |30| 64.0 | 48.0 | 56.0 | 55.2 | 44| 71| 9| 0|1........| 0| 0.07| 0.0| 29.72| 29.53|29.622| 9.8| 8.0|306| 30|WSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 70.9 | 48.0 | 59.5 | 58.9 | 42| 54| 5| 0|.........| 0| 0.00| 0.0| 30.00| 29.73|29.860| 6.9| 6.4|296| 29| NW| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1891.6|1283.5|------|------|---|----| 421| 0| Days | 6.45| 0.4| 30.35| 29.30|29.861| 5.4| 1.9|330| 35| N| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|+2.43" or 161% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 61.0| 41.3| 51.1 | 51.1 | 42|73.3|----|----|>.01 Inch 12|15.14| 9.5| 27 | 13 |------|----|----|---| 3+ | 1+ | | + +0.9 +1.1 +1.0 +------+---+----+----+----+------------|+4.25" or 139% 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 |3186| 0|Thunder 1|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 2.86| 29 | 0.2 | 2,3 | 0.2 | 2,3 | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 4 | 0 |----|----| Clear 12 Partly Cloudy 12 Cloudy 7 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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:
    FROPA: 3rd, 14th, 22nd, 26th, 29th
FROST: 7th, 9th,17th

STATION RECORDS:
12th - RAINFALL 0.75" [previous 0.31" 2002]
20th - TEMPERATURE Maximum 78 [previous 75 1985]
22nd - TEMPERATURE Maximum Minimum 52 [previous 50 1991]
29th - RAINFALL 2.86" [previous 1.90" 1991]
MARCH 2010 ranks as the 4th wettest March in the database to 1977. The top 5 wettest March months include: 1) 10.96" 1994 2) 8.77" 1989 3) 6.92" 1978 4) 6.45" 2010 and 5) 6.43" in 1993. MONTHLY AVERAGE MAXIMUM TEMP OF 61.0 WAS 0.9 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 41.3 WAS 1.1 ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 51.1 WAS 1.0 ABOVE NORMAL. MAXIMUM TEMP: 78 ON THE 20th MINIMUM TEMP: 30 ON THE 7th DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 0 MINIMUM <= 32: 5 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 430.0 COOLING DEGREE DAYS: 0.0 DAYS WITH HEATING DEGREE DAYS: 31 DAYS WITH COOLING DEGREE DAYS: 0 PRECIP TOTAL OF 6.45" WAS 2.43" ABOVE NORMAL (161% OF NORMAL). GREATEST DAILY RAINFALL: 2.86" ON THE 29th GREATEST 24-HOUR RAINFALL: 2.86" ON THE 29th DAYS WITH MEASUREABLE PRECIP: 12 OR 38.71% AVERAGE DAILY PRECIP: 0.21" NORMAL DAILY PRECIP: 0.13" DAYS WITH PRECIP >= 0.01" 12 DAYS WITH PRECIP >= 0.10" 8 DAYS WITH PRECIP >= 0.50" 5 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 1 NUMBER OF THUNDERSTORMS: 1 DAYS WITH SNOW: 02 SNOWFALL TOTAL: 0.4" CLOUDY DAYS: 7 PARTLY CLOUDY DAYS: 12 SUNNY/CLEAR DAYS: 12 DAYS WITH F/GF: 13 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 3 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 50.6 WAS 3.0 BELOW NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 33.5 WAS 1.7 BELOW NORMAL. YEARLY AVERAGE TEMP OF 42.0 WAS 2.4 BELOW NORMAL. MAXIMUM TEMP: 78 ON MARCH 20th MINIMUM TEMP: 19 ON JANUARY 11th and FEBRUARY 1st DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 5 MINIMUM <= 32: 48 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2067.5 COOLING DEGREE DAYS: 0.0 DAYS WITH HEATING DEGREE DAYS: 90 DAYS WITH COOLING DEGREE DAYS: 0 PRECIP TOTAL OF 15.14" WAS +4.28" ABOVE NORMAL ( 139% OF NORMAL). GREATEST DAILY RAINFALL: 2.86" ON MARCH 29th GREATEST 24-HOUR RAINFALL: 2.86" ON MARCH 29th DAYS WITH MEASUREABLE PRECIP: 32 OF 90 OR 35.56% AVERAGE DAILY PRECIP: 0.17" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 32 DAYS WITH PRECIP >= 0.10" 20 DAYS WITH PRECIP >= 0.50" 11 DAYS WITH PRECIP >= 1.00" 5 DAYS WITH THUNDERSTORMS: 1 NUMBER OF THUNDERSTORMS: 1 DAYS WITH SNOW: 08 SNOWFALL TOTAL: 0.4" SEASONAL SNOW: 9.5" CLOUDY DAYS: 20 PARTLY CLOUDY DAYS: 33 SUNNY/CLEAR DAYS: 37 DAYS WITH F/GF: 23 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 26
OBSERVATIONS AT 3-HOUR INTERVALS
March 2010: 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| |29.87| 0.00| 39| 28| 64|24| 5| 15| |29.97| 0.00| 41| 31| 68|33| 4| 7| |29.42| 0.04| 37| 36| 96|04| 14| 30| |04| |29.87| 0.00| 35| 27| 71|24| 5| 12| |29.92| 0.00| 39| 31| 72|00| 0| 6| |29.37| 0.18| 34| 34| 97|00| 17| 35| |07| |29.92| 0.00| 34| 27| 74|24| 5| 14| |29.94| 0.00| 36| 31| 82|00| 0| 0| |29.43| 0.03| 33| 32| 98|33| 12| 23| |10| |29.95| 0.00| 45| 31| 59|29| 11| 22| |29.92| 0.00| 43| 34| 72|04| 5| 15| |29.49| 0.05| 36| 35| 97|31| 14| 26| |13| |29.89| 0.00| 50| 34| 53|31| 11| 20| |29.82| 0.00| 44| 36| 75|04| 7| 16| |29.54| 0.00| 38| 35| 89|31| 13| 24| |16| |29.88| 0.00| 53| 34| 48|24| 11| 23| |29.75| 0.00| 41| 35| 79|04| 11| 22| |29.58| 0.00| 39| 36| 88|31| 12| 23| |19| |29.92| 0.00| 47| 33| 58|31| 4| 10| |29.67| 0.05| 37| 35| 90|04| 13| 27| |29.65| 0.01| 38| 36| 92|31| 7| 17| |22| |29.96| 0.00| 42| 33| 68|00| 5| 16| |29.52| 0.13| 34| 33| 96|04| 17| 32| |29.68| 0.01| 38| 36| 94|31| 10| 21| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 4 | MAR 5 | MAR 6 | | | | | |01| |29.71| 0.01| 38| 36| 94|31| 11| 20| |29.92| 0.00| 38| 26| 60|31| 6| 17| |30.09| 0.00| 42| 29| 60|33| 5| 18| |04| |29.72| 0.00| 36| 34| 92|27| 5| 12| |29.93| 0.00| 37| 24| 59|31| 10| 21| |30.11| 0.00| 39| 27| 62|33| 7| 18| |07| |29.75| 0.00| 36| 32| 83|31| 10| 19| |29.97| 0.00| 35| 24| 64|31| 7| 18| |30.16| 0.00| 36| 27| 68|31| 7| 18| |10| |29.79| 0.00| 40| 30| 67|31| 13| 26| |30.01| 0.00| 39| 25| 57|31| 11| 22| |30.20| 0.00| 40| 27| 60|00| 13| 24| |13| |29.77| 0.00| 44| 29| 55|31| 14| 26| |29.99| 0.00| 44| 28| 54|00| 11| 21| |30.16| 0.00| 44| 29| 56|00| 10| 18| |16| |29.78| 0.00| 46| 27| 47|31| 14| 24| |30.00| 0.00| 44| 31| 60|04| 7| 17| |30.14| 0.00| 47| 30| 51|00| 7| 16| |19| |29.85| 0.00| 43| 28| 57|31| 6| 15| |30.04| 0.00| 42| 33| 69|33| 4| 7| |30.17| 0.00| 41| 29| 62|04| 0| 4| |22| |29.90| 0.00| 40| 25| 54|31| 6| 15| |30.07| 0.00| 40| 33| 76|00| 0| 6| |30.17| 0.00| 34| 28| 78|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 7 | MAR 8 | MAR 9 | | | | | |01| |30.16| 0.00| 32| 27| 83|00| 0| 0| |30.02| 0.00| 39| 29| 67|18| 0| 5| |29.99| 0.00| 39| 29| 67|00| 0| 0| |04| |30.15| 0.00| 31| 25| 80|24| 4| 7| |29.99| 0.00| 36| 28| 72|18| 0| 5| |30.00| 0.00| 34| 28| 80|00| 0| 0| |07| |30.21| 0.00| 30| 25| 80|24| 0| 6| |30.02| 0.00| 33| 28| 82|18| 0| 5| |30.02| 0.00| 32| 28| 86|00| 0| 0| |10| |30.20| 0.00| 46| 27| 47|31| 6| 15| |30.04| 0.00| 50| 26| 39|04| 11| 23| |30.05| 0.00| 52| 34| 49|04| 5| 11| |13| |30.13| 0.00| 54| 25| 33|31| 7| 18| |29.99| 0.00| 56| 28| 34|00| 6| 18| |30.00| 0.00| 62| 37| 40|00| 6| 15| |16| |30.06| 0.00| 58| 29| 33|04| 4| 12| |29.94| 0.00| 60| 31| 34|31| 6| 14| |29.96| 0.00| 63| 38| 39|04| 6| 15| |19| |30.06| 0.00| 51| 31| 46|00| 0| 0| |29.95| 0.00| 51| 31| 45|00| 0| 0| |29.98| 0.00| 52| 33| 48|15| 0| 6| |22| |30.05| 0.00| 43| 32| 65|18| 0| 4| |29.98| 0.00| 43| 30| 60|31| 0| 6| |29.99| 0.00| 46| 37| 69|15| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 10 | MAR 11 | MAR 12 | | | | | |01| |29.95| 0.00| 44| 39| 82|15| 0| 4| |29.99| 0.01| 56| 52| 85|20| 4| 10| |29.88| 0.05| 58| 57| 97|13| 0| 7| |04| |29.93| 0.00| 41| 38| 88|15| 0| 6| |29.97| 0.01| 54| 52| 94|18| 0| 5| |29.83| 0.02| 56| 55| 98|13| 0| 6| |07| |29.94| 0.00| 45| 42| 90|15| 0| 5| |29.97| 0.00| 54| 53| 97|18| 0| 5| |29.84| 0.01| 56| 55| 99|06| 4| 7| |10| |29.97| 0.00| 59| 48| 67|20| 4| 14| |30.00| 0.00| 59| 57| 93|13| 0| 10| |29.83| 0.00| 59| 59| 99|09| 4| 16| |13| |29.92| 0.00| 72| 50| 47|24| 6| 20| |29.95| 0.00| 67| 59| 75|13| 4| 17| |29.76| 0.01| 62| 61| 96|06| 4| 15| |16| |29.92| 0.00| 71| 51| 49|20| 6| 16| |29.90| 0.00| 68| 60| 76|13| 0| 7| |29.68| 0.00| 62| 59| 92|11| 5| 19| |19| |29.96| 0.00| 64| 48| 57|18| 4| 10| |29.90| 0.00| 63| 59| 88|13| 0| 7| |29.60| 0.16| 57| 56| 98|09| 6| 16| |22| |29.98| 0.00| 60| 49| 66|22| 0| 6| |29.89| 0.01| 60| 59| 94|13| 0| 7| |29.45| 0.06| 56| 55| 98|06| 11| 30| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 13 | MAR 14 | MAR 15 | | | | | |01| |29.39| 0.04| 56| 56| 99|11| 4| 10| |29.40| 0.00| 50| 49| 96|20| 5| 10| |29.56| 0.00| 48| 47| 94|29| 4| 16| |04| |29.40| 0.00| 56| 56| 99|18| 5| 16| |29.38| 0.00| 48| 47| 96|20| 0| 5| |29.55| 0.00| 49| 47| 93|29| 6| 16| |07| |29.37| 0.00| 56| 56|100|13| 0| 7| |29.41| 0.00| 45| 45| 97|20| 0| 6| |29.56| 0.00| 49| 46| 91|29| 6| 17| |10| |29.35| 0.01| 58| 58|100|29| 5| 11| |29.43| 0.00| 51| 49| 92|18| 4| 15| |29.59| 0.00| 51| 47| 86|31| 7| 19| |13| |29.35| 0.00| 65| 59| 81|24| 5| 11| |29.44| 0.00| 56| 51| 81|20| 6| 16| |29.61| 0.01| 47| 45| 93|00| 10| 26| |16| |29.30| 0.00| 67| 57| 69|20| 7| 18| |29.46| 0.00| 54| 49| 83|27| 10| 20| |29.63| 0.00| 50| 46| 86|31| 11| 24| |19| |29.32| 0.00| 57| 54| 90|20| 0| 10| |29.52| 0.00| 53| 48| 85|24| 7| 19| |29.70| 0.00| 48| 44| 85|31| 7| 18| |22| |29.37| 0.03| 54| 52| 95|24| 4| 10| |29.56| 0.00| 50| 48| 91|29| 4| 16| |29.75| 0.00| 47| 45| 90|00| 10| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 16 | MAR 17 | MAR 18 | | | | | |01| |29.79| 0.00| 47| 43| 85|00| 10| 22| |30.05| 0.00| 39| 35| 86|00| 0| 0| |29.92| 0.00| 45| 37| 72|00| 0| 0| |04| |29.82| 0.00| 45| 43| 91|00| 11| 23| |30.03| 0.00| 35| 33| 91|00| 0| 0| |29.88| 0.00| 42| 37| 82|00| 0| 0| |07| |29.88| 0.00| 44| 42| 92|33| 10| 23| |30.04| 0.00| 34| 32| 91|00| 0| 0| |29.88| 0.00| 41| 37| 87|00| 0| 0| |10| |29.94| 0.00| 45| 42| 89|00| 11| 20| |30.06| 0.00| 48| 40| 72|04| 0| 7| |29.88| 0.00| 53| 42| 68|00| 5| 12| |13| |29.97| 0.00| 48| 40| 72|00| 13| 28| |30.03| 0.00| 60| 37| 43|04| 5| 17| |29.85| 0.00| 62| 37| 40|04| 10| 18| |16| |29.97| 0.00| 52| 39| 61|33| 11| 21| |29.97| 0.00| 64| 40| 41|18| 4| 12| |29.80| 0.00| 62| 36| 38|04| 7| 18| |19| |29.99| 0.00| 52| 37| 58|04| 5| 18| |29.97| 0.00| 57| 37| 47|13| 0| 10| |29.78| 0.00| 60| 38| 43|06| 4| 11| |22| |30.04| 0.00| 45| 36| 72|04| 0| 10| |29.98| 0.00| 48| 35| 60|15| 0| 10| |29.81| 0.00| 50| 35| 57|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.10 | 0.19 | 0.29 | 0.38 | 0.57 | 0.85 | 1.13 | 1.24 | 1.35 | 1.46 | 1.61 | 1.76 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0504 | 0509 | 0514 | 0519 | 0529 | 0544 | 0600 | 0619 | 0639 | 0700 | 0700 | 0700 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 2010: 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| |29.80| 0.00| 43| 36| 76|00| 0| 0| |29.99| 0.00| 50| 39| 66|20| 0| 7| |30.06| 0.00| 56| 45| 66|20| 4| 12| |04| |29.82| 0.00| 40| 35| 83|00| 0| 0| |29.99| 0.00| 47| 39| 73|00| 0| 0| |30.04| 0.00| 51| 43| 74|20| 0| 5| |07| |29.85| 0.00| 38| 34| 88|00| 0| 0| |30.02| 0.00| 44| 38| 80|00| 0| 0| |30.08| 0.00| 49| 43| 80|20| 0| 7| |10| |29.90| 0.00| 58| 41| 53|31| 6| 15| |30.06| 0.00| 57| 45| 64|20| 4| 10| |30.11| 0.00| 62| 52| 69|20| 6| 14| |13| |29.91| 0.00| 66| 41| 40|00| 7| 16| |30.04| 0.00| 74| 46| 37|20| 6| 15| |30.08| 0.00| 73| 55| 53|20| 6| 18| |16| |29.89| 0.00| 69| 39| 34|04| 7| 16| |30.00| 0.00| 78| 48| 35|20| 5| 15| |30.04| 0.00| 72| 57| 59|18| 5| 18| |19| |29.91| 0.00| 66| 40| 39|06| 0| 7| |30.01| 0.00| 71| 45| 39|20| 4| 11| |29.99| 0.00| 68| 55| 64|13| 4| 14| |22| |29.98| 0.00| 55| 38| 54|06| 0| 5| |30.06| 0.00| 60| 45| 58|13| 0| 10| |30.00| 0.00| 62| 55| 79|13| 4| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 22 | MAR 23 | MAR 24 | | | | | |01| |29.97| 0.00| 61| 58| 90|13| 4| 14| |29.67| 0.00| 52| 46| 81|20| 5| 12| |29.84| 0.00| 51| 42| 71|24| 11| 23| |04| |29.87| 0.00| 60| 58| 93|15| 4| 12| |29.67| 0.00| 46| 37| 72|20| 6| 14| |29.89| 0.00| 47| 40| 78|24| 7| 17| |07| |29.85| 0.00| 61| 59| 93|13| 4| 15| |29.66| 0.00| 41| 35| 79|20| 4| 11| |29.95| 0.00| 44| 40| 83|24| 5| 12| |10| |29.81| 0.00| 64| 61| 90|13| 5| 18| |29.65| 0.00| 44| 40| 87|20| 10| 19| |29.99| 0.00| 55| 45| 69|24| 7| 18| |13| |29.77| 0.03| 66| 64| 94|15| 4| 17| |29.63| 0.00| 54| 45| 73|24| 13| 31| |29.98| 0.00| 65| 45| 48|24| 10| 24| |16| |29.67| 0.00| 65| 62| 90|15| 5| 24| |29.63| 0.00| 60| 45| 58|24| 13| 31| |29.97| 0.00| 68| 45| 43|33| 10| 20| |19| |29.67| 0.00| 59| 50| 71|20| 10| 23| |29.69| 0.00| 59| 45| 59|24| 10| 23| |30.01| 0.00| 66| 43| 44|33| 5| 15| |22| |29.69| 0.00| 53| 48| 83|20| 0| 10| |29.77| 0.00| 54| 43| 67|24| 6| 19| |30.05| 0.00| 56| 44| 64|13| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 25 | MAR 26 | MAR 27 | | | | | |01| |30.04| 0.00| 52| 44| 75|15| 0| 6| |29.68| 0.00| 62| 56| 81|20| 5| 17| |30.08| 0.00| 41| 38| 91|02| 0| 6| |04| |30.02| 0.00| 48| 44| 84|15| 0| 4| |29.59| 0.01| 62| 58| 88|20| 5| 14| |30.14| 0.00| 40| 34| 81|04| 4| 14| |07| |30.03| 0.00| 47| 45| 92|15| 0| 5| |29.57| 0.08| 59| 58| 97|20| 6| 17| |30.22| 0.00| 39| 33| 77|04| 7| 18| |10| |30.02| 0.00| 60| 53| 77|20| 4| 12| |29.56| 0.00| 62| 60| 93|24| 5| 16| |30.32| 0.00| 43| 35| 72|04| 13| 24| |13| |29.96| 0.00| 74| 52| 46|20| 10| 24| |29.64| 0.02| 53| 51| 92|33| 13| 33| |30.34| 0.00| 45| 36| 70|04| 13| 26| |16| |29.82| 0.00| 75| 53| 46|20| 10| 24| |29.75| 0.02| 46| 45| 96|04| 13| 25| |30.33| 0.00| 47| 37| 69|04| 10| 20| |19| |29.80| 0.00| 69| 56| 63|18| 6| 19| |29.90| 0.00| 44| 42| 94|04| 12| 30| |30.34| 0.00| 44| 37| 76|06| 5| 15| |22| |29.76| 0.00| 64| 56| 75|20| 5| 14| |30.02| 0.00| 42| 39| 89|04| 10| 21| |30.34| 0.00| 40| 37| 87|04| 0| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 28 | MAR 29 | MAR 30 | | | | | |01| |30.33| 0.00| 41| 37| 86|06| 4| 10| |29.80| 0.00| 62| 58| 85|15| 6| 22| |29.57| 0.00| 54| 52| 95|00| 10| 18| |04| |30.27| 0.00| 41| 38| 89|04| 4| 10| |29.74| 0.17| 60| 59| 95|15| 5| 19| |29.53| 0.00| 54| 53| 94|31| 7| 18| |07| |30.24| 0.00| 41| 39| 94|04| 0| 5| |29.69| 0.33| 55| 55| 99|04| 4| 14| |29.59| 0.00| 51| 50| 94|31| 12| 25| |10| |30.21| 0.00| 54| 49| 84|13| 4| 14| |29.70| 0.20| 54| 54| 99|06| 6| 17| |29.66| 0.00| 50| 46| 89|31| 11| 25| |13| |30.08| 0.00| 66| 54| 65|13| 6| 18| |29.70| 0.07| 55| 55|100|04| 0| 7| |29.65| 0.00| 57| 47| 68|31| 10| 24| |16| |29.98| 0.00| 70| 56| 62|15| 10| 28| |29.61| 0.00| 55| 55| 99|31| 5| 11| |29.61| 0.00| 63| 40| 42|24| 13| 30| |19| |29.91| 0.00| 64| 54| 70|15| 6| 21| |29.62| 0.00| 54| 54| 99|00| 7| 15| |29.64| 0.00| 61| 37| 40|31| 11| 23| |22| |29.86| 0.00| 60| 55| 82|15| 6| 21| |29.61| 0.00| 53| 52| 98|33| 5| 18| |29.70| 0.00| 51| 37| 57|04| 0| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 31 | | | | | | | |01| |29.73| 0.00| 54| 36| 50|29| 4| 12| | | |04| |29.76| 0.00| 51| 38| 60|29| 4| 11| | | |07| |29.82| 0.00| 48| 36| 63|27| 4| 12| | | |10| |29.86| 0.00| 57| 36| 45|31| 12| 27| | | |13| |29.88| 0.00| 64| 47| 54|29| 13| 26| | | |16| |29.88| 0.00| 70| 49| 46|31| 11| 23| | | |19| |29.92| 0.00| 69| 47| 45|31| 7| 18| | | |22| |29.96| 0.00| 57| 47| 68|00| 0| 0| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
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| |29.851| 48| 41| 78| 4.0| 30 | 1.1| |04| |29.839| 45| 40| 82| 3.8| 30 | 1.7| |07| |29.864| 44| 39| 85| 3.5| 31 | 2.0| |10| |29.887| 52| 42| 73| 7.5| 32 | 3.6| |13| |29.866| 58| 44| 63| 8.6| 32 | 4.1| |16| |29.838| 60| 44| 59| 8.4| 32 | 2.8| |19| |29.857| 56| 43| 64| 5.1| 33 | 1.5| |22| |29.874| 50| 42| 75| 3.1| 01 | 1.2| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
March 2010: 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| | | | | | | | | | | | | | | | | |0.01|0.01|0.05|0.12|0.08|0.13|0.17|02 03| |0.04|0.07|0.14|0.18|0.13|0.05|0.03|0.07|0.07|0.05| | | | | | | | |0.01|0.02|0.02|0.01| |03 04| |0.01| | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| |0.01|0.01|0.01|0.01|0.08|0.01| | | | | | | | | | | | | | | |0.01|0.06|11 12| |0.05|0.06|0.11|0.02|0.01|0.02|0.01| | | | | |0.01|0.01|0.01| |0.02|0.13|0.16|0.04| |0.06|0.03|12 13| |0.04| | | | | | | | |0.01| | | | | | |0.19| | | |0.03|0.03| |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | |0.01|0.02| | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | |0.02| | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | |0.03| |0.03|0.03|0.02| | | | |0.01| | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | |0.01|0.08|0.06|0.08| | | | | |0.02|0.16|0.05|0.02|0.04|0.05| |0.04|0.02| | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | |0.17|0.30|1.12|0.33|0.26|0.25|0.20|0.06|0.09|0.07|0.01| | | | | | | | | |29 30| | | | | |0.02|0.04| |0.01| | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.15|0.14|0.26|0.39|0.62|1.30|0.45|0.36|0.32|0.26|0.09|0.09|0.14|0.23|0.08|0.02|0.26|0.19|0.22|0.23|0.15|0.24|0.26|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.)