LOCAL CLIMATOLOGICAL DATA Monthly Summary
September 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| 93.1*| 65.8 | 79.4 | 78.7 | 68| 71| 0| 15|.........| 0| 0.00| 0.0| 30.12| 30.03|30.079| 1.9| 1.6|177| 15| S| 0| 0| | |02| 86.6 | 67.0 | 76.8 | 77.3 | 69| 77| 0| 12|1........| 0| 0.00| 0.0| 30.06| 29.78|29.990| 3.9| 3.7| 47| 24| NE| 0| 0| | |03| 82.4 | 69.7 | 76.1 | 77.3 | 73| 86| 0| 11|.........| 0| 0.30| 0.0| 29.75| 29.62|29.669| 7.7| 4.6|359| 31| NE| 0| 0| | |04| 84.2 | 65.4 | 74.8 | 75.4 | 60| 62| 0| 10|.........| 0| 0.00| 0.0| 29.91| 29.70|29.801| 3.1| 2.5|255| 23|WSW| 0| 0| | |05| 81.2 | 58.1 | 69.6 | 70.1 | 59| 68| 0| 5|.........| 0| 0.00| 0.0| 30.08| 29.92|30.001| 2.2| 1.4| 58| 17| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 85.0 | 59.9 | 72.4 | 71.8 | 64| 77| 0| 8|.........| 0| 0.00| 0.0| 30.22| 30.09|30.165| 0.9| 0.5|118| 16|SSE| 0| 0| | |07| 88.5 | 62.6 | 75.6 | 74.6 | 66| 75| 0| 11|.........| 0| 0.00| 0.0| 30.26| 30.10|30.187| 2.4| 2.3|167| 18|SSE| 0| 0| | |08| 90.0 | 68.6 | 79.3 | 78.5 | 70| 76| 0| 15|.........| 0| 0.00| 0.0| 30.09| 29.82|29.934| 4.7| 4.0|194| 29|WSW| 0| 0| | |09| 82.7 | 64.6 | 73.6 | 73.7 | 60| 65| 0| 9|.........| 0| 0.00| 0.0| 29.94| 29.82|29.887| 3.7| 1.7|357| 21|WSW| 0| 0| | |10| 77.0 | 63.5 | 70.3 | 69.8 | 54| 57| 0| 6|.........| 0| 0.00| 0.0| 29.98| 29.90|29.935| 5.5| 5.0| 4| 23| NW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 78.4 | 55.3 | 66.8 | 67.4 | 56| 69| 0| 2|.........| 0| 0.00| 0.0| 30.05| 29.96|30.004| 2.1| 1.3| 29| 17|WSW| 0| 0| | |12| 69.3 | 62.7 | 66.0*| 66.6 | 64| 92| 0| 1|1........| 0| 0.35| 0.0| 30.00| 29.92|29.954| 2.3| 1.5| 71| 14|SSE| 0| 0| | |13| 79.3 | 64.4 | 71.9 | 70.5 | 62| 75| 0| 7|.........| 0| 0.00| 0.0| 30.06| 29.95|29.996| 3.8| 2.9|343| 18| N| 0| 0| | |14| 89.4 | 60.2 | 74.8 | 73.7 | 60| 66| 0| 10|.........| 0| 0.00| 0.0| 30.04| 29.92|29.969| 3.0| 1.3|343| 19| NE| 0| 0| | |15| 84.3 | 58.1 | 71.2 | 71.2 | 59| 69| 0| 6|.........| 0| 0.00| 0.0| 30.15| 30.04|30.099| 2.4| 1.0| 91| 16| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 89.1 | 62.5 | 75.8 | 75.5 | 66| 73| 0| 11|.........| 0| 0.00| 0.0| 30.11| 29.93|30.026| 3.5| 3.4|179| 23| S| 0| 0| | |17| 85.6 | 70.9 | 78.3 | 77.2 | 67| 71| 0| 14|.........| 0| 0.00| 0.0| 30.08| 29.92|29.976| 5.3| 1.0|120| 20| S| 0| 0| | |18| 77.1 | 62.7 | 69.9 | 72.0 | 63| 74| 0| 5|.........| 0| 0.00| 0.0| 30.22| 30.08|30.144| 5.6| 5.4| 43| 22| NE| 0| 0| | |19| 78.1 | 57.1 | 67.6 | 68.2 | 60| 76| 0| 3|.........| 0| 0.00| 0.0| 30.16| 30.00|30.096| 2.8| 2.7| 54| 17|ENE| 0| 0| | |20| 77.5 | 60.6 | 69.1 | 69.2 | 58| 70| 0| 5|.........| 0| 0.00| 0.0| 30.11| 29.94|29.999| 5.2| 5.1| 44| 26| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 80.5 | 54.9*| 67.7 | 67.5 | 56| 68| 0| 3|.........| 0| 0.00| 0.0| 30.23| 30.12|30.174| 2.3| 0.9|108| 15|ENE| 0| 0| | |22| 90.4 | 60.9 | 75.7 | 75.3 | 67| 75| 0| 11|.........| 0| 0.00| 0.0| 30.20| 30.04|30.132| 3.3| 3.2|177| 21| S| 0| 0| | |23| 92.3 | 68.7 | 80.5 | 79.1 | 70| 76| 0| 16|.......8.| 0| 0.00| 0.0| 30.20| 30.11|30.149| 2.9| 1.4|203| 17|SSW| 0| 0| | |24| 92.9 | 70.4 | 81.7*| 80.2 | 70| 74| 0| 17|.......8.| 0| 0.00| 0.0| 30.18| 30.03|30.118| 4.3| 4.2|175| 18|SSE| 0| 0| | |25| 91.6 | 66.6 | 79.1 | 78.3 | 68| 73| 0| 15|.........| 0| 0.00| 0.0| 30.04| 29.82|29.931| 4.6| 4.4|177| 21|SSE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 77.4 | 71.9 | 74.7 | 74.2 | 69| 84| 0| 10|..3......| 0| 0.36| 0.0| 29.95| 29.88|29.914| 5.0| 3.9| 45| 21| NE| 0| 0| | |27| 74.8 | 67.4 | 71.1 | 71.6 | 70| 96| 0| 6|..3......| 0| 3.24| 0.0| 29.91| 29.80|29.877| 1.6| 1.4|156| 18|SSE| 0| 0| | |28| 78.2 | 67.3 | 72.8 | 72.2 | 70| 93| 0| 8|1........| 0| 0.45| 0.0| 29.84| 29.71|29.740| 2.4| 2.3|171| 20|SSW| 0| 0| | |29| 73.1 | 67.0 | 70.1 | 69.4 | 68| 95| 0| 5|1........| 0| 1.48| 0.0| 29.93| 29.74|29.865| 2.6| 2.1| 33| 18| NE| 0| 0| | |30| 75.8 | 67.1 | 71.4 | 73.4 | 73| 99| 0| 7|1.3......| 0| 9.10| 0.0| 29.72| 29.50|29.598| 5.3| 2.4|112| 34| N| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2485.8|1921.9|------|------|---|----| 0| 264| Days |15.28| 0.0| 30.26| 29.50|29.980| 3.5| 0.7| 78| 34| N| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|+10.09" or 294% Of normal ------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 82.8| 64.1| 73.5 | 73.3 | 65|76.0|----|----|>.01 Inch 7|49.09| 0.0| 7 | 30 |------|----|----|---| 30 | 1+ | | | +2.1 -0.3 +1.0 ------+---+----+----+----+------------|+10.72" or 128% 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 | 0|2038|Thunder 3|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 9.10| 30 | 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 6 | 0 | 0 | 0 |----|----| Clear 20 Partly Cloudy 4 Cloudy 6 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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:
    2nd Wettest September on record - September 30th  ALL-TIME  WETTEST DAY IN THE DATABASE TO 1976
Hurricane Earl passed E & NE of station on 9/03; Tropical moisture advection along SE US coast &
lower Middle Atlantic brought 15.18" of rain in 5 days from the 26th to 10/1

FROPA: 4th, 8th,12th,14th,17th,26th,27th [WARMFROPA]
STATION RECORDS:
12th - TEMP Min Max 69 [previous 73 1992]
23rd - TEMP Max 92 [prev 88 1988]
24th - TEMP Max 93 [prev 88 1976]
27th - RAIN 3.24" [prev 2.62" 1985]
29th - RAIN 1.48" [prev 0.68" 1996]
30th - RAIN 9.10" [prev 1.4" 1980] MONTHLY AVERAGE MAXIMUM TEMP OF 82.8 WAS 2.1 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 64.1 WAS 0.3 BELOW NORMAL. MONTHLY AVERAGE TEMP OF 73.5 WAS 1.0 ABOVE NORMAL. MAXIMUM TEMP: 93 ON THE 1ST & 24TH MINIMUM TEMP: 55 ON THE 11TH & 21ST DAYS WITH TEMPERATURES: MAXIMUM >= 90: 6 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 0.0 COOLING DEGREE DAYS: 253.5 DAYS WITH HEATING DEGREE DAYS: 0 DAYS WITH COOLING DEGREE DAYS: 30 PRECIP TOTAL OF 15.28" WAS 10.09" ABOVE NORMAL (294% OF NORMAL). GREATEST DAILY RAINFALL: 9.10" ON THE 30TH GREATEST 24-HOUR RAINFALL: 9.10" ON THE 30TH DAYS WITH MEASUREABLE PRECIP: 7 OR 23.33% AVERAGE DAILY PRECIP: 0.51" NORMAL DAILY PRECIP: 0.17" DAYS WITH PRECIP >= 0.01" 7 DAYS WITH PRECIP >= 0.10" 7 DAYS WITH PRECIP >= 0.50" 3 DAYS WITH PRECIP >= 1.00" 3 DAYS WITH THUNDERSTORMS: 3 NUMBER OF THUNDERSTORMS: 3 DAYS WITH SNOW: 00 SNOWFALL TOTAL: 0.0" CLOUDY DAYS: 6 PARTLY CLOUDY DAYS: 4 SUNNY/CLEAR DAYS: 20 DAYS WITH F/GF: 5 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 73.6 WAS 1.4 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 54.6 WAS 0.7 AVOVE NORMAL. YEARLY AVERAGE TEMP OF 64.1 WAS 1.0 ABOVE NORMAL. MAXIMUM TEMP: 104 ON JULY 24th and 25th MINIMUM TEMP: 19 ON JANUARY 11th and FEBRUARY 1st DAYS WITH TEMPERATURES: MAXIMUM >= 90: 68 MAXIMUM <= 32: 5 MINIMUM <= 32: 48 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2240.0 COOLING DEGREE DAYS: 1990.0 DAYS WITH HEATING DEGREE DAYS: 117 DAYS WITH COOLING DEGREE DAYS: 156 PRECIP TOTAL OF 49.09" WAS +10.72" ABOVE NORMAL ( 128% OF NORMAL ). GREATEST DAILY RAINFALL: 9.10" ON SEPTEMBER 30TH GREATEST 24-HOUR RAINFALL: 9.10" ON SEPTEMBER 30TH DAYS WITH MEASUREABLE PRECIP: 85 OF 273 OR 31.14% AVERAGE DAILY PRECIP: 0.18" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 85 DAYS WITH PRECIP >= 0.10" 53 DAYS WITH PRECIP >= 0.50" 28 DAYS WITH PRECIP >= 1.00" 14 DAYS WITH THUNDERSTORMS: 25 NUMBER OF THUNDERSTORMS: 26 DAYS WITH SNOW: 08 SNOWFALL TOTAL: 0.4" SEASONAL SNOW: 9.5" CLOUDY DAYS: 40 PARTLY CLOUDY DAYS: 117 SUNNY/CLEAR DAYS: 116 DAYS WITH F/GF: 73 DAYS WITH DENSE FOG: 13 DAYS WITH FROST: 26
OBSERVATIONS AT 3-HOUR INTERVALS
September 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 1 | SEP 2 | SEP 3 | | | | | |01| |30.11| 0.00| 70| 64| 83|00| 0| 0| |30.06| 0.00| 72| 66| 82|13| 0| 6| |29.75| 0.00| 79| 75| 88|04| 11| 21| |04| |30.09| 0.00| 68| 64| 87|00| 0| 0| |30.05| 0.00| 69| 66| 89|00| 0| 0| |29.66| 0.00| 79| 75| 89|04| 12| 24| |07| |30.10| 0.00| 66| 63| 90|00| 0| 0| |30.05| 0.00| 67| 65| 92|00| 0| 0| |29.62| 0.01| 77| 74| 90|00| 14| 28| |10| |30.12| 0.00| 80| 69| 68|24| 4| 10| |30.05| 0.00| 80| 71| 72|04| 4| 12| |29.64| 0.04| 76| 73| 92|00| 11| 27| |13| |30.09| 0.00| 89| 70| 54|18| 4| 15| |30.02| 0.00| 86| 69| 56|15| 4| 13| |29.67| 0.02| 70| 66| 88|27| 7| 20| |16| |30.04| 0.00| 93| 71| 49|15| 4| 12| |29.96| 0.00| 84| 71| 65|04| 6| 17| |29.68| 0.00| 81| 72| 76|24| 5| 16| |19| |30.03| 0.00| 87| 72| 61|15| 4| 12| |29.90| 0.00| 80| 72| 76|04| 10| 20| |29.67| 0.00| 81| 73| 78|18| 0| 11| |22| |30.06| 0.00| 77| 67| 72|13| 0| 10| |29.86| 0.00| 79| 73| 83|04| 10| 19| |29.70| 0.00| 75| 71| 87|18| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| |29.70| 0.00| 73| 69| 86|18| 0| 7| |29.92| 0.00| 63| 53| 70|24| 0| 4| |30.10| 0.00| 64| 61| 88|18| 0| 4| |04| |29.74| 0.00| 73| 66| 77|24| 4| 11| |29.94| 0.00| 60| 54| 80|27| 0| 4| |30.10| 0.00| 62| 59| 91|00| 0| 0| |07| |29.78| 0.00| 67| 64| 89|24| 0| 4| |29.99| 0.00| 58| 54| 86|00| 0| 0| |30.16| 0.00| 60| 58| 93|00| 0| 0| |10| |29.84| 0.00| 77| 60| 56|31| 5| 17| |30.04| 0.00| 75| 59| 58|04| 6| 15| |30.21| 0.00| 76| 68| 78|13| 0| 11| |13| |29.82| 0.00| 81| 62| 52|24| 6| 17| |30.03| 0.00| 78| 59| 52|04| 4| 11| |30.18| 0.00| 81| 65| 58|18| 0| 10| |16| |29.79| 0.00| 84| 58| 41|24| 6| 18| |29.99| 0.00| 81| 62| 52|04| 4| 9| |30.16| 0.00| 85| 69| 58|15| 4| 16| |19| |29.82| 0.00| 79| 53| 41|24| 6| 20| |30.01| 0.00| 75| 63| 65|15| 4| 12| |30.18| 0.00| 78| 66| 68|15| 0| 12| |22| |29.89| 0.00| 69| 53| 58|27| 0| 4| |30.06| 0.00| 68| 62| 81|18| 0| 5| |30.22| 0.00| 71| 65| 83|15| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| |30.22| 0.00| 67| 64| 90|15| 0| 6| |30.09| 0.00| 69| 64| 83|20| 4| 14| |29.88| 0.00| 74| 68| 83|24| 6| 20| |04| |30.21| 0.00| 65| 62| 92|15| 0| 4| |30.03| 0.00| 69| 66| 91|18| 5| 12| |29.89| 0.00| 73| 58| 59|04| 6| 19| |07| |30.24| 0.00| 63| 61| 93|00| 0| 0| |30.00| 0.00| 70| 68| 93|18| 5| 12| |29.92| 0.00| 67| 57| 70|06| 0| 11| |10| |30.26| 0.00| 74| 68| 83|18| 4| 10| |29.98| 0.00| 81| 73| 79|18| 6| 17| |29.94| 0.00| 72| 61| 69|33| 6| 14| |13| |30.21| 0.00| 84| 71| 65|18| 5| 14| |29.92| 0.00| 88| 74| 64|24| 6| 21| |29.89| 0.00| 78| 59| 53|24| 5| 16| |16| |30.14| 0.00| 88| 70| 55|15| 4| 15| |29.84| 0.00| 90| 73| 59|24| 7| 23| |29.83| 0.00| 82| 61| 48|24| 5| 16| |19| |30.11| 0.00| 82| 65| 57|15| 4| 16| |29.82| 0.00| 85| 71| 63|15| 5| 19| |29.84| 0.00| 76| 62| 60|04| 0| 14| |22| |30.12| 0.00| 73| 63| 72|13| 4| 12| |29.85| 0.00| 76| 68| 77|15| 0| 7| |29.90| 0.00| 68| 60| 77|15| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| |29.91| 0.00| 64| 60| 87|15| 0| 6| |29.98| 0.00| 63| 55| 76|13| 0| 6| |30.00| 0.00| 68| 58| 71|15| 0| 11| |04| |29.91| 0.00| 68| 53| 58|00| 6| 15| |29.99| 0.00| 58| 53| 86|24| 0| 6| |29.97| 0.07| 63| 60| 91|13| 0| 11| |07| |29.94| 0.00| 64| 50| 61|00| 4| 11| |30.02| 0.00| 55| 52| 89|00| 0| 0| |29.93| 0.01| 64| 62| 94|18| 0| 7| |10| |29.96| 0.00| 69| 50| 51|33| 5| 19| |30.05| 0.00| 70| 57| 63|04| 4| 12| |29.95| 0.02| 66| 64| 95|15| 0| 6| |13| |29.94| 0.00| 73| 52| 47|00| 10| 20| |30.03| 0.00| 75| 57| 54|00| 6| 14| |29.94| 0.00| 68| 66| 94|11| 0| 6| |16| |29.90| 0.00| 77| 51| 41|00| 10| 20| |29.97| 0.00| 78| 58| 51|04| 4| 12| |29.92| 0.00| 69| 67| 93|04| 4| 11| |19| |29.93| 0.00| 72| 57| 59|04| 6| 16| |29.98| 0.00| 72| 57| 60|15| 0| 11| |29.95| 0.00| 68| 66| 92|04| 4| 12| |22| |29.97| 0.00| 68| 56| 67|06| 0| 10| |30.02| 0.00| 69| 57| 65|13| 0| 7| |29.99| 0.00| 67| 66| 94|04| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| |29.98| 0.00| 66| 64| 93|02| 0| 7| |29.97| 0.00| 64| 58| 81|18| 0| 6| |30.04| 0.00| 66| 60| 82|06| 0| 5| |04| |29.98| 0.00| 66| 64| 93|00| 5| 14| |29.95| 0.00| 62| 56| 82|18| 0| 10| |30.06| 0.00| 61| 57| 89|00| 0| 0| |07| |30.03| 0.00| 64| 61| 90|00| 5| 15| |29.98| 0.00| 60| 57| 87|00| 0| 0| |30.10| 0.00| 58| 56| 91|00| 0| 0| |10| |30.06| 0.00| 69| 64| 82|00| 6| 15| |29.99| 0.00| 74| 62| 65|24| 5| 16| |30.15| 0.00| 74| 60| 62|00| 4| 7| |13| |30.03| 0.00| 75| 62| 64|00| 6| 15| |29.96| 0.00| 86| 65| 50|24| 5| 16| |30.14| 0.00| 81| 59| 47|24| 4| 12| |16| |29.97| 0.00| 79| 61| 54|24| 4| 16| |29.92| 0.00| 89| 61| 39|00| 6| 15| |30.08| 0.00| 84| 64| 52|04| 5| 16| |19| |29.95| 0.00| 76| 59| 56|20| 0| 5| |29.96| 0.00| 80| 63| 55|04| 7| 18| |30.09| 0.00| 77| 58| 53|15| 4| 12| |22| |29.97| 0.00| 67| 60| 76|20| 0| 10| |30.01| 0.00| 72| 62| 71|00| 0| 0| |30.11| 0.00| 69| 60| 71|15| 4| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| |30.10| 0.00| 65| 59| 79|13| 0| 6| |29.93| 0.00| 74| 67| 78|20| 5| 17| |30.08| 0.00| 73| 62| 69|04| 5| 14| |04| |30.10| 0.00| 63| 59| 87|00| 0| 0| |29.92| 0.00| 73| 68| 85|18| 6| 18| |30.09| 0.00| 68| 63| 82|02| 0| 6| |07| |30.11| 0.00| 64| 61| 92|18| 0| 7| |29.96| 0.00| 71| 67| 86|18| 5| 16| |30.15| 0.00| 70| 66| 86|04| 6| 16| |10| |30.09| 0.00| 77| 71| 84|20| 5| 18| |29.98| 0.00| 77| 69| 75|24| 5| 18| |30.21| 0.00| 72| 65| 79|04| 10| 20| |13| |30.02| 0.00| 86| 69| 57|18| 6| 16| |29.96| 0.00| 85| 69| 59|24| 4| 14| |30.19| 0.00| 76| 65| 69|04| 7| 15| |16| |29.95| 0.00| 89| 69| 51|18| 7| 23| |29.96| 0.00| 84| 67| 57|04| 7| 20| |30.13| 0.00| 77| 61| 58|06| 6| 18| |19| |29.93| 0.00| 83| 67| 58|18| 5| 16| |30.01| 0.00| 78| 64| 62|04| 7| 18| |30.13| 0.00| 72| 59| 64|04| 6| 15| |22| |29.93| 0.00| 77| 69| 75|18| 6| 19| |30.07| 0.00| 76| 64| 67|04| 6| 15| |30.15| 0.00| 66| 59| 77|06| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.10 | 0.19 | 0.28 | 0.37 | 0.55 | 0.82 | 1.09 | 1.15 | 1.24 | 1.44 | 1.57 | 1.86 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 27 | 27 | 30 | 30 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 2104 | 2109 | 2114 | 2119 | 2129 | 2144 | 2200 | 2200 | 1957 | 2000 | 0329 | 2358 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 19 | SEP 20 | SEP 21 | | | | | |01| |30.16| 0.00| 61| 57| 87|00| 0| 0| |29.99| 0.00| 63| 60| 87|00| 0| 0| |30.12| 0.00| 60| 54| 79|00| 0| 0| |04| |30.13| 0.00| 58| 55| 90|00| 0| 0| |29.94| 0.00| 61| 58| 90|00| 0| 0| |30.15| 0.00| 58| 52| 81|00| 0| 0| |07| |30.15| 0.00| 57| 55| 92|00| 0| 0| |29.96| 0.00| 61| 58| 92|00| 0| 0| |30.19| 0.00| 55| 51| 85|00| 0| 0| |10| |30.15| 0.00| 72| 62| 73|06| 7| 17| |30.01| 0.00| 74| 66| 75|04| 11| 23| |30.23| 0.00| 69| 57| 65|06| 0| 10| |13| |30.11| 0.00| 77| 63| 63|04| 6| 17| |30.01| 0.00| 75| 65| 69|04| 12| 23| |30.21| 0.00| 77| 57| 49|04| 5| 14| |16| |30.04| 0.00| 78| 62| 57|04| 6| 15| |29.99| 0.00| 77| 53| 42|04| 11| 21| |30.16| 0.00| 80| 58| 48|04| 6| 15| |19| |30.03| 0.00| 76| 61| 60|06| 4| 11| |30.02| 0.00| 74| 53| 48|04| 6| 17| |30.16| 0.00| 73| 58| 59|15| 4| 14| |22| |30.03| 0.00| 68| 62| 81|06| 0| 6| |30.07| 0.00| 66| 53| 63|06| 0| 4| |30.17| 0.00| 67| 58| 74|15| 4| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| |30.17| 0.00| 63| 58| 83|20| 0| 7| |30.12| 0.00| 74| 69| 85|20| 4| 14| |30.18| 0.00| 75| 70| 86|18| 4| 11| |04| |30.18| 0.00| 61| 57| 87|20| 0| 5| |30.14| 0.00| 71| 67| 87|18| 4| 12| |30.16| 0.00| 72| 69| 88|18| 4| 12| |07| |30.19| 0.00| 63| 60| 88|18| 0| 7| |30.17| 0.00| 69| 66| 90|18| 4| 11| |30.18| 0.00| 70| 67| 90|18| 4| 10| |10| |30.19| 0.00| 75| 67| 77|20| 5| 16| |30.20| 0.00| 77| 70| 79|24| 4| 12| |30.18| 0.00| 79| 71| 75|18| 5| 16| |13| |30.12| 0.00| 86| 72| 64|18| 6| 17| |30.16| 0.00| 87| 71| 60|24| 4| 12| |30.13| 0.00| 90| 73| 57|20| 5| 16| |16| |30.06| 0.00| 90| 74| 58|15| 5| 17| |30.11| 0.00| 92| 74| 55|18| 0| 10| |30.06| 0.00| 92| 73| 54|15| 5| 18| |19| |30.05| 0.00| 84| 72| 66|18| 4| 14| |30.13| 0.00| 86| 75| 70|06| 0| 7| |30.03| 0.00| 85| 71| 63|13| 4| 17| |22| |30.11| 0.00| 77| 70| 79|15| 4| 17| |30.16| 0.00| 78| 72| 83|13| 0| 10| |30.04| 0.00| 77| 69| 78|15| 4| 17| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| |30.04| 0.00| 72| 68| 86|18| 5| 15| |29.89| 0.00| 75| 69| 82|20| 4| 15| |29.91| 0.04| 71| 70| 95|27| 4| 10| |04| |30.01| 0.00| 69| 66| 90|18| 4| 12| |29.88| 0.00| 73| 69| 87|18| 0| 7| |29.89| 0.18| 72| 70| 95|22| 0| 11| |07| |29.99| 0.00| 67| 65| 93|18| 4| 12| |29.91| 0.00| 72| 69| 89|33| 0| 7| |29.88| 0.00| 72| 70| 96|15| 4| 11| |10| |29.98| 0.00| 76| 70| 81|18| 5| 19| |29.94| 0.00| 75| 67| 76|04| 10| 18| |29.90| 0.00| 74| 73| 96|15| 5| 18| |13| |29.92| 0.00| 88| 70| 56|18| 6| 19| |29.95| 0.00| 76| 68| 76|04| 7| 16| |29.88| 0.39| 71| 70| 95|13| 0| 6| |16| |29.84| 0.00| 92| 69| 48|15| 5| 21| |29.90| 0.00| 77| 70| 77|04| 10| 19| |29.85| 0.01| 72| 71| 96|13| 0| 12| |19| |29.83| 0.00| 85| 68| 57|13| 4| 14| |29.91| 0.16| 72| 70| 93|04| 5| 17| |29.89| 0.58| 71| 69| 96|13| 0| 11| |22| |29.87| 0.00| 78| 69| 73|15| 4| 12| |29.92| 0.05| 72| 71| 95|04| 0| 6| |29.82| 0.04| 69| 67| 96|15| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| |29.78| 0.00| 68| 67| 96|13| 0| 6| |29.86| 0.00| 68| 66| 92|15| 0| 6| |29.72| 0.33| 74| 73| 97|13| 5| 22| |04| |29.72| 0.00| 70| 68| 96|15| 4| 14| |29.84| 0.00| 67| 65| 93|15| 0| 4| |29.67| 0.28| 72| 71| 97|15| 6| 27| |07| |29.71| 0.00| 71| 70| 97|15| 4| 10| |29.89| 0.00| 68| 66| 94|02| 0| 6| |29.62| 0.22| 75| 74| 97|15| 6| 21| |10| |29.73| 0.09| 72| 71| 97|13| 4| 15| |29.92| 0.07| 71| 68| 91|04| 4| 11| |29.56| 0.24| 75| 75|100|13| 6| 24| |13| |29.74| 0.01| 75| 74| 97|18| 0| 14| |29.91| 0.00| 68| 67| 95|00| 7| 17| |29.60| 0.71| 73| 73|100|00| 5| 21| |16| |29.71| 0.00| 77| 72| 83|18| 6| 18| |29.87| 0.02| 71| 70| 96|04| 7| 17| |29.60| 0.79| 73| 73|100|13| 6| 25| |19| |29.75| 0.00| 74| 69| 84|18| 4| 14| |29.83| 0.28| 71| 70| 96|06| 4| 17| |29.53| 0.00| 75| 75|100|13| 5| 19| |22| |29.80| 0.00| 70| 67| 91|20| 0| 6| |29.80| 0.01| 71| 70| 97|18| 0| 6| |29.52| 1.08| 67| 67|100|00| 10| 34| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
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| |29.949| 68| 64| 86| 2.6| 35 | 0.3| |04| |29.938| 67| 63| 88| 2.9| 03 | 0.7| |07| |29.955| 66| 63| 90| 2.9| 02 | 0.7| |10| |29.972| 74| 66| 79| 5.6| 02 | 1.8| |13| |29.950| 78| 66| 69| 5.5| 35 | 1.4| |16| |29.908| 81| 66| 64| 5.9| 04 | 1.9| |19| |29.911| 77| 65| 70| 4.4| 07 | 1.8| |22| |29.932| 71| 65| 81| 2.8| 05 | 1.0| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 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| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | |0.01|0.01|0.02| |0.04|0.09|0.11|0.02| | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | |0.01|0.07|0.07|0.04|0.02|0.01|0.08| |0.02| |0.03| | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | |0.05|0.16| | |0.05|0.10|26 27| |0.04|0.05| |0.18| | | | | | |0.06|0.12|0.39|0.75|0.10|0.01| |0.01|0.58|0.85|0.06|0.04| |27 28| | | | | | | | |0.06|0.03|0.09|0.26| |0.01| | | | | | | | | | |28 29| | | | | | | | | | |0.07|0.52|0.10| |0.02|0.01|0.02|0.12|0.15|0.28|0.08|0.01|0.01|0.09|29 30| |0.33|0.87|0.55|0.28|0.13|0.55|0.22|0.52|0.30|0.24|0.85|0.27|0.71|0.07| |0.79|0.20|0.09| |0.08|0.19|1.08|0.78|30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.37|0.93|0.62|0.53|0.17|0.58|0.24|0.68|0.33|0.46|1.78|0.63|1.13|0.84|0.11|0.82|0.32|0.30|1.02|1.01|0.26|1.18|0.97|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.)