LOCAL CLIMATOLOGICAL DATA Monthly Summary
September 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| 89.8 | 72.4 | 81.1 | 81.3 | 74| 79| 0| 16|.........| 0| 0.00| 0.0| 30.07| 30.00|30.040| 1.4| 1.4|310| 20| NW| 0| 0| | |02| 90.8*| 72.2 | 81.5*| 80.1 | 74| 83| 0| 17|1.3......| 0| 0.28| 0.0| 30.04| 29.94|30.004| 0.7| 0.2| 72| 19| N| 0| 0| | |03| 84.2 | 71.3 | 77.8 | 77.3 | 73| 87| 0| 13|1........| 0| 0.01| 0.0| 30.07| 30.00|30.027| 0.3| 0.3|203| 17|SSW| 0| 0| | |04| 88.1 | 73.8 | 80.9 | 80.0 | 74| 83| 0| 16|1........| 0| 0.00| 0.0| 30.04| 29.93|29.985| 1.7| 1.7|203| 18|SSW| 0| 0| | |05| 88.7 | 71.1 | 79.9 | 79.9 | 74| 82| 0| 15|.........| 0| 0.00| 0.0| 29.94| 29.83|29.893| 4.3| 4.3|200| 25|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 87.9 | 69.3 | 78.6 | 76.5 | 73| 88| 0| 14|1.3......| 0| 0.36| 0.0| 29.93| 29.88|29.896| 3.2| 2.2|204| 27|WNW| 0| 0| | |07| 85.8 | 67.1 | 76.4 | 76.1 | 71| 85| 0| 12|.........| 0| 0.01| 0.0| 29.97| 29.85|29.917| 1.7| 1.6| 51| 16| NE| 0| 0| | |08| 88.0 | 70.4 | 79.2 | 79.4 | 74| 85| 0| 14|1........| 0| 0.06| 0.0| 29.86| 29.69|29.780| 3.3| 2.0|206| 24| NW| 0| 0| | |09| 76.8 | 62.6 | 69.7 | 70.6 | 62| 77| 0| 5|.........| 0| 0.12| 0.0| 29.93| 29.78|29.850| 4.8| 4.5|335| 21| NW| 0| 0| | |10| 75.7 | 61.3 | 68.5 | 68.8 | 56| 64| 0| 4|.........| 0| 0.00| 0.0| 30.16| 29.93|30.032| 6.1| 5.8|328| 23| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 73.0 | 55.6 | 64.3 | 64.8 | 53| 68| 0| 0|.........| 0| 0.00| 0.0| 30.31| 30.16|30.249| 2.5| 2.1| 29| 20| NE| 0| 0| | |12| 76.5 | 52.0 | 64.3 | 64.5 | 56| 75| 0| 0|.........| 0| 0.00| 0.0| 30.37| 30.30|30.328| 1.6| 1.5| 39| 17| NE| 0| 0| | |13| 78.2 | 56.7 | 67.4 | 68.1 | 62| 82| 0| 3|.........| 0| 0.00| 0.0| 30.35| 30.26|30.307| 1.9| 1.9| 45| 20| NE| 0| 0| | |14| 81.4 | 61.0 | 71.2 | 71.5 | 64| 77| 0| 6|.........| 0| 0.00| 0.0| 30.26| 30.14|30.199| 1.5| 1.3| 47| 16| NE| 0| 0| | |15| 75.0 | 58.2 | 66.6 | 69.0 | 61| 77| 0| 2|.........| 0| 0.00| 0.0| 30.16| 30.10|30.131| 3.3| 2.7| 12| 24|NNW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 76.2 | 54.9 | 65.6 | 65.4 | 58| 78| 0| 1|.........| 0| T | 0.0| 30.16| 30.10|30.132| 0.0| 0.0| 0| 11|WSW| 0| 0| | |17| 80.1 | 65.9 | 73.0 | 72.1 | 66| 81| 0| 8|.........| 0| 0.03| 0.0| 30.12| 30.00|30.073| 0.3| 0.3|147| 15| SE| 0| 0| | |18| 84.5 | 69.3 | 76.9 | 74.4 | 71| 89| 0| 12|.........| 0| 0.69| 0.0| 29.98| 29.75|29.836| 2.6| 2.2|199| 29|SSW| 0| 0| | |19| 71.3 | 62.3 | 66.8 | 67.9 | 59| 76| 0| 2|.........| 0| 0.01| 0.0| 30.13| 29.82|30.007| 4.9| 4.0| 14| 25| N| 0| 0| | |20| 73.9 | 59.5 | 66.7 | 66.9 | 58| 74| 0| 2|.........| 0| 0.00| 0.0| 30.14| 30.07|30.106| 2.0| 1.9| 39| 19| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 77.8 | 55.6 | 66.7 | 66.7 | 59| 79| 0| 2|.........| 0| 0.00| 0.0| 30.09| 30.00|30.047| 1.2| 0.8|360| 15|ENE| 0| 0| | |22| 84.6 | 60.2 | 72.4 | 71.0 | 65| 81| 0| 8|.........| 0| 0.00| 0.0| 30.00| 29.87|29.947| 2.5| 2.5|203| 27|SSW| 0| 0| | |23| 71.9 | 57.0 | 64.4 | 67.3 | 55| 65| 0| 0|.........| 0| 0.02| 0.0| 30.14| 29.93|30.056| 5.1| 4.1| 28| 25| NE| 0| 0| | |24| 70.0 | 50.0 | 60.0*| 60.2 | 49| 68| 5| 0|.........| 0| 0.00| 0.0| 30.21| 30.13|30.172| 2.0| 1.6| 13| 19| NE| 0| 0| | |25| 75.3 | 48.6*| 62.0 | 61.9 | 51| 70| 3| 0|.........| 0| 0.00| 0.0| 30.26| 30.15|30.212| 1.6| 1.4|199| 18|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 82.0 | 58.4 | 70.2 | 69.4 | 61| 76| 0| 5|.........| 0| 0.00| 0.0| 30.22| 30.14|30.176| 2.0| 2.0|204| 21|SSW| 0| 0| | |27| 84.5 | 61.3 | 72.9 | 72.1 | 63| 75| 0| 8|.........| 0| 0.00| 0.0| 30.19| 30.08|30.138| 1.2| 0.8|130| 16|SSW| 0| 0| | |28| 84.4 | 63.4 | 73.9 | 72.9 | 65| 79| 0| 9|.........| 0| T | 0.0| 30.10| 29.96|30.027| 1.2| 1.1|208| 17|SSW| 0| 0| | |29| 70.2 | 59.5 | 64.8 | 63.8 | 59| 86| 0| 0|1.3....8.| 0| 0.34| 0.0| 30.00| 29.92|29.962| 1.5| 1.5|333| 18|NNW| 0| 0| | |30| 72.6 | 57.1 | 64.8 | 63.6 | 58| 83| 0| 0|1........| 0| 0.04| 0.0| 29.92| 29.84|29.887| 0.5| 0.4|269| 12|WSW| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2399.2|1858.0|------|------|---|----| 8| 194| Days | 1.97| 0.0| 30.37| 29.69|30.047| 2.2| 0.4|350| 29|SSW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-3.22" or 38% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 80.0| 61.9| 71.0 | 70.8 | 63|78.3|----|----|>.01 Inch 12|53.56| 0.0| 12 | 8 |------|----|----|---| 18 | 1+ | | + -0.7 -2.4 -1.5 ----+---+----+----+----+------------|+14.55" or 137% 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 | 8|1686|Thunder 3|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 0.70| 18-19| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 2 | 0 | 0 | 0 |----|----| Clear 11 Partly Cloudy 16 Cloudy 3 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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: 6th,8th,15th,18th,23rd,29th

STATION RECORDS:
11th - TEMPERATURE Minimum Maximum 73 [previous 74 2006] MONTHLY AVERAGE MAXIMUM TEMP OF 80.0 WAS 0.7 BELOW NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 61.9 WAS 2.4 BELOW NORMAL. MONTHLY AVERAGE TEMP OF 71.0 WAS 1.5 BELOW NORMAL MAXIMUM TEMP: 91 ON THE 2nd MINIMUM TEMP: 49 ON THE 25th DAYS WITH TEMPERATURES: MAXIMUM >= 90: 2 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 10.0 COOLING DEGREE DAYS: 188.5 DAYS WITH HEATING DEGREE DAYS: 6 DAYS WITH COOLING DEGREE DAYS: 23 PRECIP TOTAL OF 1.97" WAS 3.22" BELOW NORMAL (38% OF NORMAL). GREATEST DAILY RAINFALL: 0.69" ON THE 18th GREATEST 24-HOUR RAINFALL: 0.70" ON THE 18th-19th DAYS WITH MEASUREABLE PRECIP: 12 OR 40.0% AVERAGE DAILY PRECIP: 0.07" NORMAL DAILY PRECIP: 0.17" DAYS WITH PRECIP >= 0.01" 12 DAYS WITH PRECIP >= 0.10" 5 DAYS WITH PRECIP >= 0.50" 1 DAYS WITH PRECIP >= 1.00" 0 DAYS WITH THUNDERSTORMS: 3 NUMBER OF THUNDERSTORMS: 3 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" SEASONAL SNOWFALL 2011-2012: 0.5" CLOUDY DAYS: 3 PARTLY CLOUDY DAYS: 16 SUNNY/CLEAR DAYS: 11 DAYS WITH F/GF: 7 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 74.4 WAS 2.2 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 55.5 WAS 1.6 ABOVE NORMAL. YEARLY AVERAGE TEMP OF 64.9 WAS 1.8 ABOVE NORMAL. MAXIMUM TEMP: 99 ON JUNE 29TH, JULY 8TH MINIMUM TEMP: 21 ON JANUARY 4TH & FEBRUARY 13TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 37 MAXIMUM <= 32: 0 MINIMUM <= 32: 20 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 1656.0 COOLING DEGREE DAYS: 1635.0 DAYS WITH HEATING DEGREE DAYS: 119 DAYS WITH COOLING DEGREE DAYS: 152 PRECIP TOTAL OF 53.56" WAS 14.54" ABOVE NORMAL (137% OF NORMAL). GREATEST DAILY RAINFALL: 4.25" ON JUNE 22ND GREATEST 24-HOUR RAINFALL: 4.25" ON JUNE 22ND DAYS WITH MEASUREABLE PRECIP: 113 OF 274 OR 41.24% AVERAGE DAILY PRECIP: 0.20" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 113 DAYS WITH PRECIP >= 0.10" 69 DAYS WITH PRECIP >= 0.50" 36 DAYS WITH PRECIP >= 1.00" 15 DAYS WITH THUNDERSTORMS: 39 NUMBER OF THUNDERSTORMS: 48 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: 38 PARTLY CLOUDY DAYS: 139 SUNNY/CLEAR DAYS: 97 DAYS WITH F/GF: 79 DAYS WITH DENSE FOG: 4 DAYS WITH FROST: 14
OBSERVATIONS AT 3-HOUR INTERVALS
September 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 1 | SEP 2 | SEP 3 | | | | | |01| |30.06| 0.00| 77| 74| 91|20| 0| 12| |30.02| 0.00| 77| 73| 87|00| 0| 0| |30.02| 0.00| 73| 71| 94|15| 0| 11| |04| |30.03| 0.00| 75| 72| 92|20| 0| 11| |30.01| 0.00| 75| 72| 90|00| 0| 0| |30.01| 0.00| 72| 70| 94|00| 0| 0| |07| |30.05| 0.00| 73| 70| 93|20| 0| 6| |30.02| 0.00| 75| 72| 92|00| 0| 0| |30.02| 0.00| 72| 70| 94|00| 0| 0| |10| |30.07| 0.00| 82| 77| 84|24| 0| 10| |30.01| 0.00| 82| 77| 85|00| 0| 0| |30.06| 0.00| 78| 77| 95|20| 0| 14| |13| |30.07| 0.00| 89| 76| 65|31| 7| 20| |30.02| 0.00| 86| 78| 76|00| 0| 0| |30.05| 0.00| 81| 75| 82|20| 0| 17| |16| |30.01| 0.00| 89| 74| 62|29| 0| 11| |29.96| 0.00| 89| 76| 65|04| 4| 10| |30.01| 0.00| 83| 75| 78|20| 0| 10| |19| |30.00| 0.00| 85| 73| 66|00| 0| 0| |30.00| 0.01| 79| 74| 83|20| 4| 17| |30.00| 0.00| 81| 74| 79|15| 0| 6| |22| |30.03| 0.00| 80| 72| 78|31| 0| 4| |29.98| 0.09| 72| 70| 92|24| 0| 10| |30.04| 0.00| 77| 73| 89|11| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| |30.02| 0.00| 75| 72| 90|13| 0| 6| |29.94| 0.00| 76| 72| 89|20| 4| 16| |29.88| 0.00| 78| 74| 89|20| 4| 18| |04| |30.00| 0.00| 74| 72| 93|18| 0| 7| |29.92| 0.00| 72| 69| 90|20| 4| 12| |29.88| 0.00| 75| 72| 89|20| 4| 15| |07| |30.03| 0.00| 75| 73| 94|22| 0| 15| |29.92| 0.00| 71| 69| 92|20| 4| 14| |29.89| 0.00| 74| 71| 92|20| 4| 16| |10| |30.03| 0.00| 80| 76| 87|20| 4| 15| |29.92| 0.00| 81| 75| 83|20| 6| 22| |29.91| 0.00| 82| 76| 82|20| 5| 19| |13| |30.00| 0.00| 87| 77| 72|20| 4| 18| |29.89| 0.00| 87| 78| 73|20| 6| 19| |29.88| 0.00| 88| 77| 69|20| 6| 19| |16| |29.94| 0.00| 87| 75| 68|20| 4| 17| |29.85| 0.00| 88| 78| 73|20| 5| 18| |29.90| 0.01| 77| 75| 95|04| 4| 24| |19| |29.93| 0.00| 84| 74| 72|22| 0| 10| |29.83| 0.00| 84| 76| 76|20| 4| 16| |29.88| 0.00| 72| 71| 95|11| 0| 4| |22| |29.95| 0.00| 79| 74| 85|22| 0| 10| |29.87| 0.00| 79| 74| 83|20| 0| 6| |29.92| 0.00| 70| 68| 91|11| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| |29.92| 0.00| 69| 67| 93|11| 0| 4| |29.86| 0.00| 76| 75| 97|09| 0| 6| |29.81| 0.02| 69| 67| 92|00| 4| 14| |04| |29.91| 0.00| 67| 65| 93|00| 0| 0| |29.83| 0.00| 75| 74| 98|13| 0| 5| |29.79| 0.00| 68| 64| 87|00| 7| 16| |07| |29.94| 0.01| 67| 65| 94|00| 0| 0| |29.82| 0.00| 75| 75|100|22| 0| 7| |29.84| 0.06| 66| 63| 89|31| 4| 13| |10| |29.96| 0.00| 78| 73| 85|04| 4| 12| |29.80| 0.00| 80| 76| 88|20| 5| 19| |29.87| 0.00| 70| 65| 84|31| 5| 15| |13| |29.94| 0.00| 83| 74| 74|04| 4| 11| |29.76| 0.00| 86| 77| 75|20| 6| 20| |29.86| 0.00| 76| 66| 73|00| 6| 18| |16| |29.89| 0.00| 86| 75| 71|13| 4| 10| |29.69| 0.00| 88| 77| 70|20| 6| 21| |29.83| 0.00| 76| 63| 63|31| 7| 19| |19| |29.89| 0.00| 82| 75| 77|15| 0| 10| |29.70| 0.00| 83| 74| 76|20| 4| 18| |29.86| 0.00| 74| 57| 56|31| 5| 17| |22| |29.89| 0.00| 78| 75| 91|09| 0| 5| |29.79| 0.00| 72| 67| 85|04| 6| 21| |29.91| 0.00| 65| 57| 75|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| |29.94| 0.00| 62| 58| 87|33| 0| 4| |30.16| 0.00| 59| 54| 82|00| 0| 0| |30.31| 0.00| 56| 52| 84|00| 0| 0| |04| |29.94| 0.00| 66| 54| 66|31| 5| 16| |30.18| 0.00| 57| 53| 87|00| 0| 0| |30.30| 0.00| 53| 50| 88|00| 0| 0| |07| |29.99| 0.00| 63| 55| 75|31| 5| 16| |30.23| 0.00| 56| 53| 90|00| 0| 0| |30.33| 0.00| 52| 49| 90|00| 0| 0| |10| |30.05| 0.00| 69| 60| 72|31| 10| 19| |30.29| 0.00| 70| 54| 57|04| 5| 16| |30.37| 0.00| 68| 59| 74|31| 0| 10| |13| |30.06| 0.00| 74| 57| 55|31| 11| 21| |30.29| 0.00| 72| 51| 47|33| 7| 18| |30.35| 0.00| 75| 59| 57|04| 4| 15| |16| |30.04| 0.00| 76| 57| 53|31| 7| 20| |30.26| 0.00| 73| 54| 51|04| 5| 14| |30.31| 0.00| 76| 61| 59|04| 5| 17| |19| |30.08| 0.00| 73| 54| 52|31| 6| 18| |30.26| 0.00| 70| 54| 56|04| 4| 10| |30.32| 0.00| 72| 59| 65|04| 4| 12| |22| |30.13| 0.00| 68| 52| 58|31| 0| 11| |30.30| 0.00| 62| 52| 72|00| 0| 0| |30.34| 0.00| 64| 57| 78|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| |30.33| 0.00| 59| 55| 87|00| 0| 0| |30.26| 0.00| 67| 63| 88|00| 0| 0| |30.13| 0.00| 68| 65| 89|15| 0| 4| |04| |30.31| 0.00| 57| 54| 90|00| 0| 0| |30.24| 0.00| 63| 60| 90|00| 0| 0| |30.11| 0.00| 65| 64| 95|15| 0| 4| |07| |30.33| 0.00| 57| 54| 91|00| 0| 0| |30.24| 0.00| 61| 59| 92|00| 0| 0| |30.12| 0.00| 65| 62| 92|27| 0| 10| |10| |30.34| 0.00| 73| 67| 81|04| 4| 14| |30.24| 0.00| 75| 65| 70|04| 4| 11| |30.16| 0.00| 72| 67| 83|33| 7| 24| |13| |30.33| 0.00| 77| 67| 73|04| 5| 18| |30.20| 0.00| 80| 65| 59|04| 5| 15| |30.16| 0.00| 74| 59| 60|04| 11| 23| |16| |30.28| 0.00| 78| 67| 70|04| 6| 19| |30.15| 0.00| 79| 66| 65|04| 4| 11| |30.12| 0.00| 74| 59| 58|04| 6| 19| |19| |30.26| 0.00| 75| 66| 74|04| 0| 13| |30.15| 0.00| 78| 67| 69|13| 0| 10| |30.12| 0.00| 72| 56| 58|33| 0| 10| |22| |30.28| 0.00| 69| 64| 85|00| 0| 0| |30.15| 0.00| 72| 66| 82|15| 0| 4| |30.15| 0.00| 62| 53| 74|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| |30.14| 0.00| 57| 54| 88|00| 0| 0| |30.11| 0.00| 66| 61| 84|00| 0| 0| |29.98| 0.00| 72| 69| 89|13| 0| 12| |04| |30.13| 0.00| 55| 53| 92|00| 0| 0| |30.10| 0.00| 66| 61| 84|00| 0| 0| |29.92| 0.00| 70| 68| 92|15| 0| 12| |07| |30.15| 0.00| 55| 53| 93|00| 0| 0| |30.10| 0.00| 66| 62| 86|00| 0| 0| |29.89| 0.00| 71| 69| 93|13| 0| 12| |10| |30.16| 0.00| 70| 60| 71|00| 0| 0| |30.11| 0.00| 74| 66| 76|00| 0| 0| |29.84| 0.00| 79| 73| 81|15| 5| 19| |13| |30.14| 0.00| 76| 60| 57|29| 0| 10| |30.09| 0.00| 77| 69| 76|13| 0| 14| |29.80| 0.00| 84| 75| 74|20| 6| 29| |16| |30.11| 0.00| 73| 63| 71|24| 0| 11| |30.03| 0.00| 79| 70| 72|13| 0| 12| |29.76| 0.03| 76| 73| 92|22| 4| 20| |19| |30.11| 0.00| 69| 60| 72|27| 0| 6| |30.03| 0.01| 73| 68| 84|13| 0| 12| |29.77| 0.01| 75| 73| 93|22| 4| 16| |22| |30.12| 0.00| 67| 60| 79|00| 0| 0| |30.03| 0.00| 72| 69| 89|15| 0| 13| |29.78| 0.00| 69| 68| 95|20| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.05 | 0.10 | 0.15 | 0.20 | 0.29 | 0.43 | 0.57 | 0.57 | 0.57 | 0.58 | 0.58 | 0.58 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1904 | 1909 | 1914 | 1919 | 1929 | 1944 | 1958 | 1958 | 1958 | 1958 | 1958 | 1958 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
September 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 19 | SEP 20 | SEP 21 | | | | | |01| |29.82| 0.00| 70| 69| 96|00| 0| 0| |30.13| 0.00| 62| 57| 82|06| 0| 4| |30.08| 0.00| 61| 58| 89|04| 0| 4| |04| |29.84| 0.00| 69| 68| 96|29| 4| 16| |30.11| 0.00| 60| 56| 86|02| 0| 4| |30.07| 0.00| 58| 56| 92|00| 0| 0| |07| |29.94| 0.00| 65| 59| 81|33| 7| 20| |30.12| 0.00| 62| 57| 81|33| 0| 5| |30.07| 0.00| 56| 53| 92|00| 0| 0| |10| |30.01| 0.00| 69| 59| 72|04| 6| 19| |30.14| 0.00| 70| 60| 70|04| 5| 19| |30.09| 0.00| 68| 61| 78|24| 0| 10| |13| |30.07| 0.00| 70| 57| 65|04| 7| 21| |30.13| 0.00| 73| 59| 61|33| 5| 19| |30.05| 0.00| 75| 62| 64|06| 4| 15| |16| |30.08| 0.00| 70| 55| 58|04| 7| 20| |30.07| 0.00| 74| 60| 63|04| 5| 15| |30.01| 0.00| 77| 62| 60|04| 4| 14| |19| |30.09| 0.00| 68| 56| 64|04| 5| 16| |30.07| 0.00| 70| 60| 70|04| 0| 10| |30.01| 0.00| 73| 62| 70|15| 0| 10| |22| |30.13| 0.00| 63| 56| 79|00| 0| 0| |30.09| 0.00| 63| 58| 84|00| 0| 0| |30.02| 0.00| 66| 59| 80|13| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| |30.00| 0.00| 62| 58| 87|15| 0| 6| |29.94| 0.00| 70| 66| 86|20| 0| 11| |30.13| 0.00| 55| 48| 77|00| 0| 0| |04| |30.00| 0.00| 61| 59| 92|20| 0| 10| |29.95| 0.00| 68| 66| 93|29| 0| 5| |30.13| 0.00| 51| 49| 90|00| 0| 0| |07| |30.00| 0.00| 60| 59| 94|20| 0| 10| |30.02| 0.00| 69| 56| 64|33| 5| 16| |30.16| 0.00| 50| 48| 93|00| 0| 0| |10| |29.99| 0.00| 69| 66| 89|20| 5| 17| |30.09| 0.00| 67| 49| 53|04| 10| 20| |30.20| 0.00| 65| 50| 57|33| 7| 18| |13| |29.93| 0.00| 81| 70| 70|20| 5| 22| |30.10| 0.00| 68| 51| 55|04| 10| 20| |30.20| 0.00| 70| 47| 44|31| 5| 16| |16| |29.87| 0.00| 83| 71| 67|20| 6| 24| |30.07| 0.00| 69| 50| 51|04| 6| 18| |30.17| 0.00| 68| 49| 49|04| 4| 16| |19| |29.89| 0.00| 78| 68| 71|20| 4| 20| |30.09| 0.00| 66| 52| 61|04| 4| 15| |30.17| 0.00| 65| 49| 55|04| 0| 7| |22| |29.91| 0.00| 72| 67| 83|20| 0| 14| |30.14| 0.00| 61| 48| 61|33| 0| 6| |30.21| 0.00| 56| 49| 76|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| |30.21| 0.00| 52| 47| 84|00| 0| 0| |30.19| 0.00| 61| 56| 83|13| 0| 4| |30.16| 0.00| 67| 62| 84|20| 4| 16| |04| |30.21| 0.00| 50| 46| 87|00| 0| 0| |30.17| 0.00| 59| 56| 89|20| 0| 6| |30.14| 0.00| 64| 61| 91|18| 0| 7| |07| |30.24| 0.00| 49| 46| 91|00| 0| 0| |30.20| 0.00| 59| 57| 94|22| 0| 6| |30.16| 0.00| 62| 60| 93|20| 0| 7| |10| |30.26| 0.00| 64| 55| 72|13| 0| 10| |30.21| 0.00| 69| 63| 82|20| 4| 17| |30.19| 0.00| 70| 65| 84|18| 0| 11| |13| |30.23| 0.00| 73| 52| 49|20| 4| 15| |30.18| 0.00| 78| 64| 61|20| 5| 20| |30.16| 0.00| 81| 63| 54|04| 4| 12| |16| |30.18| 0.00| 75| 52| 45|20| 4| 16| |30.14| 0.00| 82| 64| 55|20| 4| 16| |30.08| 0.00| 84| 62| 47|13| 4| 12| |19| |30.20| 0.00| 69| 54| 57|20| 0| 10| |30.15| 0.00| 77| 63| 62|20| 0| 14| |30.10| 0.00| 78| 64| 62|13| 0| 7| |22| |30.15| 0.00| 63| 55| 74|13| 4| 14| |30.18| 0.00| 70| 63| 78|20| 0| 10| |30.12| 0.00| 70| 62| 76|13| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| |30.10| 0.00| 66| 63| 90|20| 0| 7| |29.97| 0.00| 70| 64| 81|24| 0| 6| |29.92| 0.01| 59| 58| 94|13| 0| 5| |04| |30.08| 0.00| 65| 63| 94|18| 0| 6| |29.97| 0.00| 67| 61| 79|33| 5| 17| |29.90| 0.00| 58| 57| 95|24| 0| 7| |07| |30.07| 0.00| 63| 62| 96|20| 0| 7| |29.99| 0.01| 66| 60| 81|31| 0| 10| |29.90| 0.00| 57| 56| 96|24| 0| 11| |10| |30.07| 0.00| 71| 67| 89|20| 0| 11| |30.00| 0.13| 64| 62| 94|24| 0| 6| |29.91| 0.00| 63| 60| 92|24| 0| 7| |13| |30.02| 0.00| 83| 65| 55|20| 4| 17| |29.98| 0.00| 63| 58| 83|31| 4| 18| |29.89| 0.00| 69| 55| 62|31| 4| 11| |16| |29.97| 0.00| 83| 67| 59|18| 4| 17| |29.93| 0.01| 62| 59| 90|29| 0| 6| |29.84| 0.00| 72| 56| 56|20| 0| 12| |19| |29.98| 0.00| 78| 67| 68|20| 0| 10| |29.92| 0.00| 60| 57| 90|33| 0| 4| |29.87| 0.00| 68| 60| 77|11| 0| 6| |22| |29.97| 0.00| 73| 66| 78|27| 4| 17| |29.92| 0.01| 60| 58| 92|00| 0| 0| |29.90| 0.00| 63| 60| 90|09| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
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| |30.037| 66| 62| 88| 0.5| 21 | 0.3| |04| |30.026| 64| 61| 90| 0.9| 31 | 0.5| |07| |30.045| 64| 60| 90| 0.9| 31 | 0.5| |10| |30.062| 71| 65| 80| 3.1| 00 | 0.6| |13| |30.046| 76| 64| 67| 4.5| 35 | 1.0| |16| |30.007| 77| 64| 67| 3.6| 06 | 0.8| |19| |30.013| 73| 63| 72| 1.5| 29 | 0.2| |22| |30.033| 68| 62| 82| 0.4| 07 | 0.1| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 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| | | | | | | | | | | | | | | | | | | |0.01|0.05|0.12|0.09|0.01|02 03| | | | | |0.01| | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | |0.10|0.25|0.01| | | | | | | |06 07| | | | | | | |0.01| | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | |0.06|08 09| |0.02| |0.01| | |0.01|0.06|0.02| | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | |0.02|0.01| | | | |17 18| | | | | | | | | | | | | | |0.06|0.01|0.03| | |0.01|0.57| | |0.01|18 19| | | | | |0.01| | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | |0.02| | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | |0.01|0.03|0.02|0.13|0.02|0.01| | |0.07|0.01|0.01| | | | |0.01|0.02|29 30| |0.01|0.03| | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.03|0.05|0.01|0.00|0.02|0.01|0.08|0.05|0.02|0.13|0.02|0.01|0.00|0.16|0.33|0.05|0.01|0.02|0.03|0.62|0.12|0.10|0.10|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.)