LOCAL CLIMATOLOGICAL DATA Monthly Summary
July 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| 79.4 | 64.3 | 71.9 | 73.2 | 61| 67| 0| 7|.........| 0| 0.00| 0.0| 30.20| 30.12|30.162| 4.5| 4.2| 39| 24| NE| 0| 0| | |02| 78.6 | 59.8 | 69.2*| 70.7 | 56| 62| 0| 5|.........| 0| 0.00| 0.0| 30.24| 30.20|30.218| 4.7| 4.6| 43| 22| NE| 0| 0| | |03| 86.3 | 56.7*| 71.5 | 72.4 | 58| 62| 0| 7|.........| 0| 0.00| 0.0| 30.25| 30.12|30.188| 2.1| 0.9|215| 15|SSE| 0| 0| | |04| 92.3 | 59.1 | 75.7 | 77.0 | 63| 63| 0| 11|.......8.| 0| 0.00| 0.0| 30.15| 30.02|30.095| 2.5| 2.3|180| 16| S| 0| 0| | |05| 97.5 | 63.7 | 80.6 | 81.9 | 65| 60| 0| 16|.......8.| 0| 0.00| 0.0| 30.07| 30.00|30.048| 2.8| 2.3|206| 17|WSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 98.4 | 68.4 | 83.4 | 84.6 | 68| 60| 0| 18|.......8.| 0| 0.00| 0.0| 30.07| 30.00|30.041| 2.1| 1.2| 25| 18|ENE| 0| 0| | |07| 99.8 | 73.8 | 86.8 | 86.2 | 70| 61| 0| 22|.......8.| 0| 0.00| 0.0| 30.02| 29.94|29.983| 5.0| 4.4| 26| 24| N| 0| 0| | |08| 87.4 | 76.9 | 82.2 | 81.4 | 72| 75| 0| 17|.........| 0| 0.00| 0.0| 30.00| 29.93|29.963| 5.1| 5.1| 45| 22| NE| 0| 0| | |09| 88.2 | 75.4 | 81.8 | 81.2 | 73| 77| 0| 17|.......8.| 0| 0.01| 0.0| 29.94| 29.81|29.879| 5.2| 5.2| 45| 21| NE| 0| 0| | |10| 88.8 | 74.7 | 81.8 | 79.9 | 74| 82| 0| 17|..3....8.| 0| 0.03| 0.0| 29.85| 29.79|29.817| 3.3| 1.4|327| 21| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 92.4 | 71.1 | 81.8 | 80.5 | 70| 72| 0| 17|.......8.| 0| 0.00| 0.0| 29.92| 29.84|29.888| 3.3| 2.5|318| 17|NNW| 0| 0| | |12| 92.8 | 73.4 | 83.1 | 82.2 | 74| 77| 0| 18|.......8.| 0| 0.00| 0.0| 29.93| 29.86|29.907| 2.7| 2.6|156| 20|SSE| 0| 0| | |13| 92.9 | 76.2 | 84.6 | 83.6 | 76| 80| 0| 20|.......8.| 0| 0.04| 0.0| 29.92| 29.87|29.897| 3.3| 3.2|180| 19| S| 0| 0| | |14| 90.4 | 77.2 | 83.8 | 83.6 | 74| 74| 0| 19|.......8.| 0| 0.00| 0.0| 30.02| 29.91|29.945| 4.3| 1.1|234| 21| N| 0| 0| | |15| 93.0 | 72.9 | 82.9 | 83.7 | 73| 72| 0| 18|.......8.| 0| 0.00| 0.0| 30.06| 30.00|30.027| 2.0| 1.2| 13| 15| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 96.4 | 74.7 | 85.6 | 85.1 | 76| 76| 0| 21|1......8.| 0| 0.00| 0.0| 30.06| 29.93|30.000| 3.5| 3.4|181| 20| S| 0| 0| | |17| 93.0 | 75.1 | 84.1 | 84.1 | 76| 77| 0| 19|.......8.| 0| T | 0.0| 30.01| 29.93|29.986| 4.6| 4.3|188| 19|WSW| 0| 0| | |18| 99.3 | 71.4 | 85.4 | 84.9 | 74| 71| 0| 20|.......8.| 0| 0.00| 0.0| 30.01| 29.91|29.971| 4.7| 4.2|197| 21| S| 0| 0| | |19| 93.4 | 75.9 | 84.7 | 83.0 | 75| 78| 0| 20|..3......| 0| 0.21| 0.0| 29.98| 29.88|29.945| 5.0| 4.5|190| 29| S| 0| 0| | |20| 98.4 | 73.6 | 86.0 | 82.4 | 75| 79| 0| 21|..3......| 0| 0.04| 0.0| 30.07| 29.96|30.012| 3.3| 3.0|186| 29| W| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 95.4 | 73.7 | 84.6 | 85.1 | 75| 74| 0| 20|.........| 0| 0.00| 0.0| 30.05| 29.95|30.003| 3.3| 2.8|201| 23|WSW| 0| 0| | |22| 95.2 | 74.9 | 85.1 | 85.4 | 73| 69| 0| 20|.......8.| 0| 0.00| 0.0| 30.05| 29.98|30.016| 2.9| 1.0|328| 17| N| 0| 0| | |23|100.2 | 76.6 | 88.4 | 85.9 | 77| 78| 0| 24|..3......| 0| 0.01| 0.0| 30.05| 29.98|30.019| 3.3| 3.2|185| 26| S| 0| 0| | |24|104.0 | 77.3 | 90.7*| 89.7 | 79| 72| 0| 26|.........| 0| 0.00| 0.0| 30.00| 29.90|29.965| 4.3| 4.0|183| 21| S| 0| 0| | |25|104.2*| 76.0 | 90.1 | 91.0 | 77| 67| 0| 25|..3......| 0| 0.51| 0.0| 29.97| 29.81|29.907| 5.3| 3.5|167| 25| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 87.4 | 72.7 | 80.1 | 80.2 | 69| 72| 0| 15|.........| 0| 0.00| 0.0| 30.08| 29.95|30.032| 3.7| 3.7| 48| 21| NE| 0| 0| | |27| 86.4 | 67.2 | 76.8 | 77.1 | 67| 73| 0| 12|.........| 0| 0.00| 0.0| 30.13| 30.08|30.106| 0.5| 0.5|165| 14|SSE| 0| 0| | |28| 95.4 | 73.4 | 84.4 | 83.6 | 72| 69| 0| 19|.........| 0| 0.00| 0.0| 30.11| 29.98|30.058| 3.0| 2.9|166| 18|SSW| 0| 0| | |29| 99.0 | 71.0 | 85.0 | 82.3 | 75| 80| 0| 20|..3......| 0| 2.37| 0.0| 30.01| 29.80|29.907| 4.0| 2.1|173| 46| NE| 0| 0| | |30| 83.6 | 70.2 | 76.9 | 76.9 | 68| 75| 0| 12|.........| 0| 0.00| 0.0| 29.96| 29.83|29.899| 6.9| 6.4| 41| 23| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 85.0 | 64.7 | 74.8 | 75.1 | 64| 71| 0| 10|.........| 0| 0.00| 0.0| 29.97| 29.91|29.943| 1.3| 0.7| 94| 17| NE| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2874.5|2212.0|------|------|---|----| 0| 533| Days | 3.22| 0.0| 30.25| 29.79|29.994| 3.6| 0.8|150| 46| NE| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-2.09" or 61% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 92.6| 71.4| 82.0 | 81.7 | 71|71.7|----|----|>.01 Inch 8|29.53| 0.0| 3 | 10 |------|----|----|---| 29 | 1+ | | + +4.1 +0.3 +2.2 ------+---+----+----+----+------------|+1.72" or 106% 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|1310|Thunder 6|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 2.37| 29 | 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 21 | 0 | 0 | 0 |----|----| Clear 12 Partly Cloudy 18 Cloudy 1 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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: 7th (backdoor front from ocean) 9th,14th,25th,30th

STATION RECORDS:
4th - TEMPERATURE Minimum 59 [previous 61 1986]
5th - TEMP TIED Max 98 [prev 1999]
7th - TEMP TIED Max 100 [prev 1977]
8th - TEMP Max Min 77 [prev 76 1987]
18th - TEMP Max 99 [prev 77 1977]
20th - TEMP TIED Max 98 [prev 1977]
23rd - TEMP Max 100 [prev 99 1995]
24th - TEMP Max 104 [prev 101 1995] ALL-TIME STATION MAX TEMP
25th - TEMP Max 104 [prev 96 1987] ALL-TIME STATION MAX TEMP TIED
29th - WIND GUST 46mph [prev 28mph 2009] JULY 2010 WAS THE 10TH DRIEST JULY IN THE DATABASE TO 1976. MONTHLY AVERAGE MAXIMUM TEMP OF 92.6 WAS 4.1 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 71.4 WAS 0.3 ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 82.0 WAS 2.2 ABOVE NORMAL. MAXIMUM TEMP: 104 ON THE 24th, 25th MINIMUM TEMP: 57 ON THE 3rd DAYS WITH TEMPERATURES: MAXIMUM >= 90: 21 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 0.0 COOLING DEGREE DAYS: 526.0 DAYS WITH HEATING DEGREE DAYS: 0 DAYS WITH COOLING DEGREE DAYS: 31 PRECIP TOTAL OF 3.22" WAS 2.09" BELOW NORMAL ( 61% OF NORMAL). GREATEST DAILY RAINFALL: 2.37" ON THE 29th GREATEST 24-HOUR RAINFALL: 2.37" ON THE 29th DAYS WITH MEASUREABLE PRECIP: 8 OR 25.81% AVERAGE DAILY PRECIP: 0.10" NORMAL DAILY PRECIP: 0.17" DAYS WITH PRECIP >= 0.01" 8 DAYS WITH PRECIP >= 0.10" 3 DAYS WITH PRECIP >= 0.50" 2 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 6 NUMBER OF THUNDERSTORMS: 6 DAYS WITH SNOW: 00 SNOWFALL TOTAL: 0.0" CLOUDY DAYS: 1 PARTLY CLOUDY DAYS: 18 SUNNY/CLEAR DAYS: 12 DAYS WITH F/GF: 1 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 70.1 WAS 1.2 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 50.8 WAS 0.7 AVOVE NORMAL. YEARLY AVERAGE TEMP OF 60.5 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: 50 MAXIMUM <= 32: 5 MINIMUM <= 32: 48 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2240.0 COOLING DEGREE DAYS: 1283.0 DAYS WITH HEATING DEGREE DAYS: 117 DAYS WITH COOLING DEGREE DAYS: 95 PRECIP TOTAL OF 29.53" WAS +1.72" ABOVE NORMAL ( 106% OF NORMAL ). GREATEST DAILY RAINFALL: 2.86" ON MARCH 29th GREATEST 24-HOUR RAINFALL: 2.86" ON MARCH 29th DAYS WITH MEASUREABLE PRECIP: 67 OF 212 OR 31.60% AVERAGE DAILY PRECIP: 0.14" NORMAL DAILY PRECIP: 0.139 DAYS WITH PRECIP >= 0.01" 67 DAYS WITH PRECIP >= 0.10" 41 DAYS WITH PRECIP >= 0.50" 22 DAYS WITH PRECIP >= 1.00" 9 DAYS WITH THUNDERSTORMS: 19 NUMBER OF THUNDERSTORMS: 19 DAYS WITH SNOW: 08 SNOWFALL TOTAL: 0.4" SEASONAL SNOW: 9.5" CLOUDY DAYS: 30 PARTLY CLOUDY DAYS: 94 SUNNY/CLEAR DAYS: 88 DAYS WITH F/GF: 61 DAYS WITH DENSE FOG: 13 DAYS WITH FROST: 26
OBSERVATIONS AT 3-HOUR INTERVALS
July 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 1 | JUL 2 | JUL 3 | | | | | |01| |30.14| 0.00| 70| 65| 84|00| 0| 0| |30.20| 0.00| 63| 57| 80|00| 0| 0| |30.21| 0.00| 63| 55| 76|00| 0| 0| |04| |30.12| 0.00| 66| 63| 89|00| 0| 0| |30.21| 0.00| 60| 56| 87|00| 0| 0| |30.20| 0.00| 59| 54| 83|00| 0| 0| |07| |30.15| 0.00| 67| 65| 93|00| 0| 0| |30.22| 0.00| 63| 59| 89|06| 0| 5| |30.23| 0.00| 61| 57| 87|29| 0| 5| |10| |30.19| 0.00| 75| 63| 65|04| 10| 24| |30.24| 0.00| 77| 57| 51|04| 7| 17| |30.24| 0.00| 77| 58| 53|24| 4| 11| |13| |30.18| 0.00| 78| 60| 55|04| 11| 20| |30.24| 0.00| 78| 54| 44|04| 7| 20| |30.21| 0.00| 81| 60| 48|24| 4| 11| |16| |30.17| 0.00| 79| 61| 55|06| 7| 19| |30.21| 0.00| 78| 53| 42|04| 11| 21| |30.15| 0.00| 86| 62| 44|18| 4| 10| |19| |30.17| 0.00| 77| 57| 50|04| 7| 19| |30.20| 0.00| 76| 56| 50|04| 7| 19| |30.12| 0.00| 82| 60| 48|15| 4| 12| |22| |30.18| 0.00| 69| 57| 65|00| 0| 0| |30.21| 0.00| 68| 55| 64|13| 0| 5| |30.14| 0.00| 70| 58| 65|15| 0| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 4 | JUL 5 | JUL 6 | | | | | |01| |30.15| 0.00| 65| 56| 74|15| 0| 6| |30.07| 0.00| 71| 62| 73|18| 4| 12| |30.06| 0.00| 75| 68| 78|18| 0| 10| |04| |30.13| 0.00| 61| 56| 82|18| 0| 6| |30.06| 0.00| 67| 61| 81|18| 0| 10| |30.04| 0.00| 71| 66| 84|15| 0| 5| |07| |30.14| 0.00| 63| 58| 86|18| 0| 7| |30.07| 0.00| 66| 61| 85|18| 0| 6| |30.06| 0.00| 70| 66| 85|15| 0| 7| |10| |30.11| 0.00| 79| 65| 63|24| 4| 15| |30.07| 0.00| 84| 68| 60|24| 5| 15| |30.06| 0.00| 86| 70| 59|24| 4| 11| |13| |30.10| 0.00| 89| 65| 46|18| 4| 11| |30.05| 0.00| 94| 67| 42|20| 4| 12| |30.06| 0.00| 95| 69| 44|00| 6| 15| |16| |30.06| 0.00| 92| 65| 41|20| 4| 13| |30.02| 0.00| 97| 70| 41|18| 4| 12| |30.02| 0.00| 97| 67| 38|04| 6| 16| |19| |30.03| 0.00| 88| 67| 49|18| 4| 14| |30.01| 0.00| 93| 67| 43|13| 4| 11| |30.01| 0.00| 97| 68| 39|06| 0| 10| |22| |30.06| 0.00| 76| 65| 68|13| 4| 12| |30.05| 0.00| 81| 67| 62|18| 0| 7| |30.02| 0.00| 83| 68| 62|15| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 7 | JUL 8 | JUL 9 | | | | | |01| |30.02| 0.00| 77| 68| 73|15| 0| 4| |29.96| 0.00| 79| 73| 82|04| 0| 7| |29.94| 0.00| 77| 72| 85|04| 6| 16| |04| |30.00| 0.00| 75| 67| 77|00| 0| 0| |29.95| 0.00| 77| 73| 89|20| 0| 6| |29.91| 0.00| 76| 73| 90|04| 5| 15| |07| |30.01| 0.00| 75| 69| 81|00| 0| 0| |29.98| 0.00| 78| 73| 85|04| 4| 12| |29.90| 0.00| 77| 73| 87|04| 7| 16| |10| |30.01| 0.00| 90| 71| 55|00| 6| 16| |29.99| 0.00| 84| 70| 64|04| 5| 16| |29.92| 0.00| 83| 74| 73|04| 10| 19| |13| |29.98| 0.00| 98| 71| 42|00| 7| 18| |29.99| 0.00| 86| 70| 58|04| 10| 20| |29.89| 0.00| 87| 76| 69|04| 6| 19| |16| |29.96| 0.00| 98| 70| 40|04| 12| 24| |29.95| 0.00| 86| 72| 62|04| 7| 20| |29.84| 0.00| 87| 73| 63|04| 6| 19| |19| |29.95| 0.00| 90| 73| 57|06| 10| 19| |29.94| 0.00| 82| 72| 72|04| 10| 18| |29.82| 0.00| 85| 73| 67|04| 0| 15| |22| |29.96| 0.00| 83| 70| 66|04| 5| 16| |29.95| 0.00| 78| 72| 82|04| 7| 17| |29.85| 0.00| 78| 72| 80|15| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 10 | JUL 11 | JUL 12 | | | | | |01| |29.84| 0.00| 76| 71| 87|15| 0| 7| |29.85| 0.00| 75| 70| 83|31| 4| 11| |29.93| 0.00| 76| 73| 89|15| 4| 12| |04| |29.81| 0.00| 76| 72| 89|15| 0| 11| |29.85| 0.00| 73| 69| 88|24| 4| 12| |29.90| 0.00| 74| 72| 92|13| 0| 10| |07| |29.81| 0.00| 75| 72| 92|24| 0| 5| |29.89| 0.00| 72| 69| 90|29| 4| 13| |29.92| 0.00| 74| 72| 94|13| 0| 6| |10| |29.82| 0.00| 83| 75| 77|27| 4| 12| |29.92| 0.00| 78| 71| 79|31| 5| 12| |29.93| 0.00| 86| 75| 69|15| 0| 20| |13| |29.81| 0.00| 88| 79| 75|20| 4| 14| |29.92| 0.00| 87| 70| 57|24| 4| 15| |29.92| 0.00| 91| 75| 60|15| 4| 15| |16| |29.80| 0.00| 80| 75| 84|00| 6| 17| |29.88| 0.00| 90| 68| 48|00| 5| 17| |29.89| 0.00| 91| 75| 58|15| 5| 18| |19| |29.81| 0.00| 82| 73| 75|33| 7| 20| |29.88| 0.00| 89| 72| 58|15| 0| 12| |29.86| 0.00| 84| 75| 74|15| 0| 10| |22| |29.85| 0.00| 79| 71| 77|00| 5| 17| |29.91| 0.00| 79| 71| 77|15| 0| 7| |29.90| 0.00| 80| 75| 85|15| 4| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 13 | JUL 14 | JUL 15 | | | | | |01| |29.90| 0.03| 79| 75| 90|15| 4| 11| |29.91| 0.00| 80| 76| 88|18| 5| 14| |30.01| 0.00| 76| 73| 90|15| 0| 4| |04| |29.88| 0.00| 77| 75| 93|13| 0| 5| |29.91| 0.00| 79| 76| 89|18| 4| 11| |30.01| 0.00| 74| 72| 93|00| 0| 0| |07| |29.89| 0.00| 77| 75| 94|18| 0| 7| |29.93| 0.00| 77| 73| 85|18| 4| 10| |30.04| 0.00| 74| 73| 94|00| 0| 6| |10| |29.92| 0.00| 84| 78| 82|18| 4| 14| |29.93| 0.00| 82| 76| 83|18| 5| 14| |30.06| 0.00| 88| 73| 62|33| 4| 11| |13| |29.92| 0.00| 90| 78| 68|18| 5| 17| |29.95| 0.00| 90| 75| 62|24| 5| 19| |30.04| 0.00| 92| 70| 49|00| 5| 14| |16| |29.89| 0.00| 93| 78| 62|18| 5| 17| |29.94| 0.00| 89| 73| 60|00| 7| 19| |30.03| 0.00| 91| 74| 58|04| 4| 15| |19| |29.89| 0.00| 88| 76| 68|15| 5| 19| |29.97| 0.00| 90| 71| 54|33| 5| 16| |30.00| 0.00| 90| 74| 60|18| 0| 14| |22| |29.91| 0.00| 80| 75| 84|15| 4| 13| |30.01| 0.00| 80| 75| 83|13| 0| 7| |30.03| 0.00| 82| 74| 77|15| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 16 | JUL 17 | JUL 18 | | | | | |01| |30.06| 0.00| 79| 75| 88|20| 0| 7| |29.98| 0.00| 83| 76| 80|18| 4| 14| |30.01| 0.00| 74| 70| 89|18| 4| 11| |04| |30.02| 0.00| 76| 73| 92|18| 0| 10| |29.98| 0.00| 81| 74| 81|18| 5| 15| |29.98| 0.00| 72| 69| 91|18| 4| 13| |07| |30.05| 0.00| 76| 74| 94|18| 4| 14| |30.00| 0.00| 80| 74| 81|18| 5| 16| |30.00| 0.00| 73| 70| 90|18| 4| 10| |10| |30.05| 0.00| 82| 77| 85|18| 4| 12| |30.00| 0.00| 88| 78| 72|24| 5| 19| |30.00| 0.00| 85| 74| 70|24| 4| 18| |13| |30.01| 0.00| 93| 81| 69|18| 5| 14| |29.99| 0.00| 92| 79| 65|18| 6| 19| |29.98| 0.00| 95| 76| 54|20| 4| 14| |16| |29.94| 0.00| 96| 79| 57|20| 6| 17| |29.95| 0.00| 90| 77| 66|18| 5| 19| |29.92| 0.00| 99| 77| 49|18| 6| 17| |19| |29.94| 0.00| 94| 77| 58|18| 5| 15| |29.93| 0.00| 80| 74| 81|15| 4| 14| |29.92| 0.00| 93| 77| 59|18| 6| 20| |22| |29.97| 0.00| 85| 75| 71|18| 4| 11| |30.00| 0.00| 77| 74| 89|18| 4| 11| |29.96| 0.00| 86| 75| 70|18| 5| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.14 | 0.28 | 0.41 | 0.55 | 0.82 | 1.23 | 1.60 | 1.67 | 1.74 | 1.80 | 1.95 | 2.17 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1904 | 1909 | 1914 | 1919 | 1929 | 1944 | 2000 | 2019 | 2039 | 2054 | 1957 | 2000 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
July 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 19 | JUL 20 | JUL 21 | | | | | |01| |29.97| 0.00| 80| 74| 80|18| 0| 7| |29.96| 0.00| 76| 73| 93|18| 4| 15| |30.05| 0.00| 76| 72| 86|18| 0| 11| |04| |29.96| 0.00| 77| 72| 84|18| 4| 15| |29.97| 0.00| 75| 72| 93|18| 4| 11| |30.03| 0.00| 74| 70| 88|15| 0| 10| |07| |29.98| 0.00| 77| 73| 86|18| 6| 21| |30.01| 0.00| 75| 73| 95|18| 0| 5| |30.04| 0.00| 76| 73| 91|18| 4| 12| |10| |29.97| 0.00| 87| 77| 72|18| 7| 21| |30.03| 0.00| 86| 77| 75|18| 4| 12| |30.04| 0.00| 87| 78| 76|18| 5| 17| |13| |29.95| 0.00| 92| 75| 58|18| 10| 27| |30.03| 0.00| 95| 78| 58|18| 5| 15| |30.00| 0.00| 95| 80| 62|18| 5| 16| |16| |29.90| 0.01| 90| 79| 72|24| 4| 14| |30.01| 0.02| 84| 74| 72|27| 6| 29| |29.96| 0.00| 95| 76| 54|24| 7| 23| |19| |29.89| 0.12| 79| 76| 88|18| 4| 26| |30.01| 0.00| 83| 74| 74|20| 4| 16| |29.95| 0.00| 93| 76| 57|24| 4| 11| |22| |29.96| 0.00| 76| 74| 93|13| 0| 11| |30.07| 0.01| 80| 73| 80|24| 0| 10| |29.97| 0.00| 85| 76| 73|24| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 22 | JUL 23 | JUL 24 | | | | | |01| |29.99| 0.00| 83| 74| 74|24| 4| 14| |30.04| 0.00| 79| 74| 84|13| 4| 12| |29.99| 0.00| 80| 77| 90|18| 4| 12| |04| |29.98| 0.00| 77| 72| 85|24| 0| 7| |30.01| 0.00| 77| 74| 91|13| 0| 11| |29.99| 0.00| 78| 76| 91|18| 0| 10| |07| |30.02| 0.00| 75| 72| 89|24| 0| 5| |30.04| 0.00| 77| 75| 93|20| 0| 10| |30.00| 0.00| 78| 76| 92|18| 4| 11| |10| |30.04| 0.00| 87| 74| 64|00| 6| 14| |30.05| 0.00| 90| 81| 74|20| 4| 10| |30.00| 0.00| 89| 81| 76|18| 5| 17| |13| |30.04| 0.00| 92| 74| 56|00| 6| 17| |30.03| 0.00| 97| 80| 58|20| 5| 17| |29.98| 0.00| 98| 84| 63|18| 5| 16| |16| |30.00| 0.00| 95| 73| 49|00| 5| 16| |29.98| 0.00|100| 82| 56|20| 5| 14| |29.94| 0.00|104| 76| 42|24| 5| 18| |19| |30.00| 0.00| 90| 75| 61|15| 4| 14| |29.99| 0.01| 85| 78| 80|18| 5| 19| |29.90| 0.00| 98| 82| 59|20| 3| 13| |22| |30.04| 0.00| 82| 71| 71|13| 0| 13| |30.00| 0.00| 81| 77| 87|20| 4| 14| |29.93| 0.00| 89| 79| 72|18| 5| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 25 | JUL 26 | JUL 27 | | | | | |01| |29.95| 0.00| 86| 78| 79|18| 5| 14| |29.95| 0.00| 76| 73| 93|11| 0| 4| |30.08| 0.00| 71| 65| 81|00| 0| 0| |04| |29.94| 0.00| 83| 77| 84|18| 4| 14| |29.97| 0.00| 75| 73| 94|00| 0| 0| |30.08| 0.00| 68| 64| 87|00| 0| 0| |07| |29.96| 0.00| 81| 76| 85|18| 4| 15| |30.03| 0.00| 75| 74| 95|04| 0| 14| |30.11| 0.00| 69| 66| 92|00| 0| 0| |10| |29.93| 0.00| 89| 79| 72|24| 5| 17| |30.07| 0.00| 81| 67| 61|04| 10| 18| |30.12| 0.00| 83| 69| 62|15| 0| 12| |13| |29.89| 0.00| 99| 80| 54|18| 6| 16| |30.07| 0.00| 85| 69| 59|06| 6| 18| |30.13| 0.00| 83| 70| 65|18| 4| 12| |16| |29.84| 0.00|104| 77| 43|18| 7| 21| |30.04| 0.00| 87| 67| 52|04| 6| 15| |30.11| 0.00| 82| 69| 65|18| 0| 11| |19| |29.83| 0.00|100| 77| 49|15| 5| 21| |30.02| 0.00| 85| 67| 56|04| 5| 16| |30.09| 0.00| 80| 68| 65|15| 0| 10| |22| |29.93| 0.00| 85| 77| 75|04| 7| 19| |30.07| 0.00| 76| 66| 71|00| 0| 0| |30.11| 0.00| 77| 67| 71|15| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 28 | JUL 29 | JUL 30 | | | | | |01| |30.10| 0.00| 75| 67| 76|13| 0| 10| |30.01| 0.00| 77| 72| 83|15| 4| 12| |29.85| 0.00| 71| 70| 95|24| 4| 10| |04| |30.08| 0.00| 74| 69| 82|15| 0| 6| |29.96| 0.00| 75| 71| 88|18| 4| 10| |29.84| 0.00| 73| 72| 96|00| 4| 12| |07| |30.09| 0.00| 74| 70| 87|18| 0| 5| |29.97| 0.00| 75| 73| 92|18| 0| 10| |29.87| 0.00| 71| 69| 95|04| 7| 18| |10| |30.10| 0.00| 85| 72| 66|18| 5| 16| |29.94| 0.00| 87| 78| 76|20| 5| 14| |29.92| 0.00| 79| 69| 71|04| 10| 23| |13| |30.06| 0.00| 92| 74| 55|18| 5| 16| |29.90| 0.00| 96| 81| 62|15| 5| 16| |29.93| 0.00| 82| 68| 62|04| 10| 20| |16| |30.03| 0.00| 95| 75| 52|15| 5| 15| |29.82| 0.00| 99| 80| 56|20| 6| 18| |29.91| 0.00| 83| 68| 60|04| 10| 20| |19| |29.98| 0.00| 90| 75| 60|13| 5| 15| |29.83| 0.12| 76| 71| 86|04| 6| 26| |29.92| 0.00| 80| 65| 60|04| 11| 22| |22| |30.03| 0.00| 81| 71| 73|15| 4| 15| |29.87| 0.00| 72| 71| 95|13| 0| 6| |29.95| 0.00| 73| 66| 77|04| 4| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 31 | | | | | | | |01| |29.96| 0.00| 68| 64| 87|00| 0| 0| | | |04| |29.93| 0.00| 65| 63| 91|00| 0| 0| | | |07| |29.95| 0.00| 65| 63| 93|00| 0| 0| | | |10| |29.97| 0.00| 79| 63| 58|04| 4| 12| | | |13| |29.95| 0.00| 83| 61| 47|04| 0| 11| | | |16| |29.94| 0.00| 84| 64| 50|15| 4| 15| | | |19| |29.91| 0.00| 81| 65| 58|15| 0| 10| | | |22| |29.94| 0.00| 74| 66| 76|18| 0| 2| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
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| |30.002| 75| 70| 84| 1.9| 18 | 1.2| |04| |29.987| 73| 69| 88| 1.3| 18 | 0.7| |07| |30.009| 73| 69| 90| 1.7| 16 | 0.7| |10| |30.017| 84| 72| 68| 5.1| 04 | 0.2| |13| |30.002| 90| 72| 56| 5.2| 15 | 1.2| |16| |29.969| 91| 71| 54| 5.7| 10 | 0.9| |19| |29.957| 86| 71| 62| 4.1| 10 | 1.4| |22| |29.991| 79| 70| 76| 2.0| 12 | 0.8| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
July 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| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | |0.01| | | | | | | | | | | | | | | | | | |09 10| | | | | |0.01| | | | | | | | |0.02| | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| |0.03|0.01| | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | |0.01| |0.08|0.12| | | | |19 20| | | | | | | | | | | | | | | | |0.02|0.01| | | | |0.01| |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | |0.01| | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | |0.51|25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | |0.45|0.12|1.59|0.21| | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.03|0.01|0.00|0.00|0.02|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.02|0.00|0.03|0.01|0.53|0.25|1.59|0.21|0.01|0.51|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.)