LOCAL CLIMATOLOGICAL DATA Monthly Summary
September 2007
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| 83.0 | 67.6 | 75.3 | 75.9 | 65| 70| 0| 10|.........| 0| 0.00| 0.0| 30.18| 29.99|30.085| 4.8| 4.5| 14| 23| N| 0| 0| | |02| 81.0 | 61.6 | 71.3 | 71.2 | 58| 66| 0| 6|.........| 0| 0.00| 0.0| 30.26| 30.18|30.213| 2.3| 2.3| 43| 21| NE| 0| 0| | |03| 85.6 | 60.8 | 73.2 | 73.2 | 62| 71| 0| 8|.........| 0| 0.00| 0.0| 30.19| 30.03|30.117| 2.0| 2.0|135| 13| N| 0| 9| | |04| 88.1 | 64.4 | 76.4 | 82.1 | 63| 65| 0| 11|.........| 0| 0.00| 0.0| 30.04| 29.97|30.008| 0.4| 0.4| 23| 6|NNE| 0| 0| | |05| 88.3 | 65.3 | 76.8 | 76.9 | 64| 68| 0| 12|1......8.| 0| 0.00| 0.0| 30.15| 30.01|30.062| 1.9| 1.1| 11| 15|NNW| 5|243| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 88.4 | 67.9 | 78.2 | 77.5 | 66| 70| 0| 13|1......8.| 0| 0.00| 0.0| 30.27| 30.11|30.209| 1.8| 1.8|135| 12| SE| 1|143| | |07| 87.1 | 68.0 | 77.6 | 77.0 | 65| 69| 0| 13|.........| 0| 0.00| 0.0| 30.26| 30.13|30.198| 1.8| 1.4|134| 16| SE| 0| 0| | |08| 85.7 | 63.1 | 74.4 | 74.7 | 63| 69| 0| 10|.........| 0| 0.00| 0.0| 30.16| 30.02|30.099| 1.6| 1.4|128| 15| SE| 0| 0| | |09| 86.4 | 72.7 | 79.6 | 79.3 | 72| 78| 0| 15|.........| 0| T | 0.0| 30.05| 29.87|29.938| 4.6| 4.6| 45| 22| NE| 4| 53| | |10| 92.2 | 72.1 | 82.1 | 81.0 | 72| 74| 0| 17|.........| 0| 0.00| 0.0| 30.01| 29.84|29.942| 2.7| 1.6|240| 15|WSW| 1|253| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 94.2*| 73.3 | 83.8*| 83.0 | 68| 63| 0| 19|.......8.| 0| 0.00| 0.0| 29.91| 29.72|29.814| 4.1| 3.4|184| 25| S| 2|174| | |12| 83.4 | 69.6 | 76.5 | 78.3 | 60| 54| 0| 12|.........| 0| 0.00| 0.0| 30.09| 29.85|29.982| 3.3| 2.1| 34| 19| NE| 5| 12| | |13| 83.0 | 63.6 | 73.3 | 73.9 | 60| 63| 0| 9|.......8.| 0| 0.00| 0.0| 30.17| 30.02|30.123| 2.2| 2.1| 50| 20| NE| 0| 0| | |14| 84.8 | 66.5 | 75.7 | 75.4 | 64| 69| 0| 11|.........| 0| 0.04| 0.0| 30.11| 29.85|30.027| 2.1| 2.0|130| 17| SE| 0| 0| | |15| 75.7 | 66.0 | 70.8 | 71.1 | 59| 69| 0| 6|1........| 0| 0.12| 0.0| 30.17| 29.82|29.983| 6.3| 3.7|343| 22|NNW| 3|262| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 69.6 | 56.5 | 63.0 | 65.3 | 48| 54| 1| 0|.........| 0| 0.00| 0.0| 30.27| 30.10|30.186| 4.3| 3.9| 17| 19| NE| 8| 1| | |17| 72.4 | 52.7*| 62.6 | 64.1 | 53| 68| 2| 0|.........| 0| 0.00| 0.0| 30.32| 30.16|30.279| 5.2| 4.8| 35| 23| NE| 0| 0| | |18| 73.5 | 63.0 | 68.3 | 68.0 | 56| 66| 0| 4|.........| 0| 0.00| 0.0| 30.31| 30.15|30.266| 8.2| 7.3| 24| 23|NNW| 6| 12| | |19| 72.1 | 66.6 | 69.3 | 69.7 | 64| 82| 0| 5|.........| 0| 0.02| 0.0| 30.24| 30.09|30.190| 6.3| 5.6| 27| 19| N| 5| 48| | |20| 72.8 | 68.6 | 70.7 | 70.4 | 66| 86| 0| 6|.........| 0| 0.07| 0.0| 30.17| 30.03|30.133| 5.1| 4.9| 42| 16| NE| 3| 55| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 80.8 | 70.5 | 75.7 | 74.6 | 70| 85| 0| 11|.........| 0| T | 0.0| 30.15| 30.00|30.104| 3.1| 2.9| 45| 20| NE| 0| 57| | |22| 86.9 | 69.3 | 78.1 | 77.2 | 70| 80| 0| 13|.........| 0| 0.00| 0.0| 30.11| 29.98|30.069| 1.8| 0.3|301| 16|NNW| 0|131| | |23| 83.0 | 62.9 | 72.9 | 74.7 | 66| 77| 0| 8|1........| 0| 0.00| 0.0| 30.18| 30.01|30.120| 3.6| 3.3| 36| 20| NE| 5|349| | |24| 80.5 | 58.6 | 69.6 | 69.6 | 58| 71| 0| 5|1......8.| 0| 0.00| 0.0| 30.24| 30.10|30.196| 2.9| 2.5| 1| 17|NNW| 0| 8| | |25| 85.6 | 58.1 | 71.8 | 70.9 | 62| 76| 0| 7|1......8.| 0| 0.00| 0.0| 30.22| 30.10|30.163| 2.3| 2.3|138| 16| SE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 88.0 | 62.8 | 75.4 | 74.8 | 65| 73| 0| 11|.........| 0| 0.00| 0.0| 30.13| 29.99|30.066| 2.7| 2.5|166| 18| SE| 0|143| | |27| 82.3 | 70.1 | 76.2 | 75.9 | 70| 82| 0| 11|.........| 0| 0.00| 0.0| 30.03| 29.85|29.939| 1.3| 1.1|126| 12| NE| 0| 0| | |28| 81.9 | 69.3 | 75.6 | 74.6 | 62| 67| 0| 11|.........| 0| 0.00| 0.0| 30.11| 29.75|29.926| 6.1| 3.4|322| 22|NNW| 3|255| | |29| 72.4 | 60.4 | 66.4 | 68.1 | 51| 56| 0| 1|.........| 0| 0.00| 0.0| 30.37| 30.13|30.266| 7.8| 7.2|360| 29| N| 7|351| | |30| 75.3 | 53.0 | 64.2 | 65.2 | 52| 65| 1| 0|.........| 0| 0.00| 0.0| 30.45| 30.30|30.403| 3.2| 3.2| 45| 20| NE| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2441.9|1953.1|------|------|---|----| 6| 263| Days | 0.25| 0.0| 30.45| 29.72|30.105| 3.5| 1.9| 28| 29| N| 8| 1| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 82.1 65.1 73.5| 73.4 | 63|70.9|----|----|>.01 Inch 4|26.11| 0.0| 30 | 11 |------|----|----|---| 29 | 16 | | + +1.3 +0.5 +1.0+------+---+----+----+----+------------+ -11.75" 69% ------------+------+----+----+---+-------+-------+------+ | | 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 | 6|1578|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 0.16| 14-15| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 2 | 0 | 0 | 0 |----|----| Clear 16 Partly Cloudy 11 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:
    STATION RECORDS:
11th - TEMPERATURE - MAXIMUM MINIMUM TIED - 73 [prev 1985]
17th - TEMPERATURE - MINIMUM 53 [prev 54 1985]

SEPTEMBER 2007 WAS THE DRIEST SEPTEMBER IN THE DATABASE TO
1976 WITH 0.25". THE PREVIOUS DRIEST SEPTEMBER WAS IN 1978 WITH
0.26". MONTHLY AVERAGE MAXIMUM TEMP OF 82.1 WAS 1.3 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 64.8 WAS 0.5 ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 73.5 WAS 1.0 ABOVE NORMAL. MAXIMUM TEMP: 94 ON THE 11TH MINIMUM TEMP: 53 ON THE 17TH, 30TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 2 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 5.5 COOLING DEGREE DAYS: 260.0 DAYS WITH HEATING DEGREE DAYS: 3 DAYS WITH COOLING DEGREE DAYS: 27 PRECIP TOTAL OF 0.25" WAS 4.51" BELOW NORMAL ( 5% OF NORMAL). GREATEST DAILY RAINFALL: 0.12" ON THE 15TH GREATEST 24-HOUR RAINFALL: 0.16" ON THE 14TH-15TH DAYS WITH MEASUREABLE PRECIP: 4 OR 13.33% AVERAGE DAILY PRECIP: 0.01" NORMAL DAILY PRECIP: 0.16" DAYS WITH PRECIP >= 0.01" 4 DAYS WITH PRECIP >= 0.10" 1 DAYS WITH PRECIP >= 0.50" 0 DAYS WITH PRECIP >= 1.00" 0 DAYS WITH THUNDERSTORMS: 0 NUMBER OF THUNDERSTORMS: 0 DAYS WITH SNOW: 00 SNOWFALL TOTAL: 0.0" AVERAGE SKY COVER: 30.70% CLOUDY DAYS: 3 PARTLY CLOUDY DAYS: 11 SUNNY/CLEAR DAYS: 16 DAYS WITH F/GF: 0 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 72.7 WAS 0.6 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 53.7 WAS 0.2 BELOW NORMAL. YEARLY AVERAGE TEMP OF 63.2 WAS 0.2 ABOVE NORMAL. MAXIMUM TEMP: 98 ON AUGUST 9TH MINIMUM TEMP: 15 ON FEBRUARY 6TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 31 MAXIMUM <= 32: 1 MINIMUM <= 32: 42 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2092.0 COOLING DEGREE DAYS: 1600.5 DAYS WITH HEATING DEGREE DAYS: 121 DAYS WITH COOLING DEGREE DAYS: 148 PRECIP TOTAL OF 26.11" WAS 11.75" BELOW NORMAL ( 69% OF NORMAL). GREATEST DAILY RAINFALL: 1.75" ON AUGUST 21ST GREATEST 24-HOUR RAINFALL: 2.03" ON JULY 29TH-30TH DAYS WITH MEASUREABLE PRECIP: 78 OF 273 OR 28.57% AVERAGE DAILY PRECIP: 0.10" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 78 DAYS WITH PRECIP >= 0.10" 49 DAYS WITH PRECIP >= 0.50" 16 DAYS WITH PRECIP >= 1.00" 9 DAYS WITH THUNDERSTORMS: 26 NUMBER OF THUNDERSTORMS: 30 DAYS WITH SNOW: 02 SNOWFALL TOTAL: 0.4" CLOUDY DAYS: 32 PARTLY CLOUDY DAYS: 122 SUNNY/CLEAR DAYS: 119 DAYS WITH F/GF: 66 DAYS WITH DENSE FOG: 1 DAYS WITH FROST: 15
OBSERVATIONS AT 3-HOUR INTERVALS
September 2007: 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| |30.00| 0.00| 75| 70| 86|00| 0| 0| |30.19| 0.00| 67| 63| 85|00| 0| 0| |30.19| 0.00| 64| 60| 88|00| 0| 0| |04| |30.00| 0.00| 72| 70| 93|00| 0| 0| |30.19| 0.00| 64| 62| 95|00| 0| 0| |30.16| 0.00| 62| 60| 94|00| 0| 0| |07| |30.04| 0.00| 72| 68| 87|00| 4| 15| |30.21| 0.00| 62| 61| 97|00| 0| 0| |30.17| 0.00| 61| 60| 97|00| 0| 0| |10| |30.09| 0.00| 80| 67| 64|00| 10| 23| |30.25| 0.00| 77| 61| 58|04| 5| 16| | | | | | | | | | |13| |30.12| 0.00| 81| 67| 63|00| 7| 17| |30.26| 0.00| 78| 60| 55|04| 6| 19| | | | | | | | | | |16| |30.13| 0.00| 80| 68| 66|04| 7| 17| |30.20| 0.00| 78| 59| 51|04| 5| 17| | | | | | | | | | |19| |30.14| 0.00| 76| 60| 56|04| 6| 18| |30.20| 0.00| 76| 57| 52|04| 0| 15| | | | | | | | | | |22| |30.17| 0.00| 71| 62| 73|04| 0| 12| |30.21| 0.00| 68| 60| 75|00| 0| 0| | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| | | | | | | | | | |30.01| 0.00| 71| 63| 77|00| 0| 0| |30.16| 0.00| 73| 68| 82|15| 0| 5| |04| | | | | | | | | | |30.01| 0.00| 68| 63| 84|00| 0| 0| |30.17| 0.00| 70| 66| 87|00| 0| 0| |07| | | | | | | | | | |30.05| 0.00| 65| 62| 88|00| 0| 0| |30.22| 0.00| 68| 65| 89|00| 0| 0| |10| | | | | | | | | | |30.08| 0.00| 78| 66| 68|24| 4| 11| |30.26| 0.00| 77| 69| 75|13| 0| 11| |13| | | | | | | | | | |30.08| 0.00| 86| 62| 45|24| 4| 10| |30.24| 0.00| 86| 66| 52|13| 4| 10| |16| | | | | | | | | | |30.06| 0.00| 88| 63| 43|33| 6| 15| |30.20| 0.00| 87| 66| 49|13| 4| 11| |19| |29.98| 0.00| 86| 63| 46|31| 0| 5| |30.08| 0.00| 84| 67| 57|04| 4| 12| |30.22| 0.00| 83| 63| 52|13| 4| 12| |22| |30.00| 0.00| 77| 64| 64|13| 0| 5| |30.13| 0.00| 77| 69| 77|15| 0| 7| |30.25| 0.00| 76| 66| 72|13| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| |30.24| 0.00| 73| 68| 82|13| 0| 10| |30.16| 0.00| 70| 63| 78|13| 0| 7| |30.05| 0.00| 74| 68| 83|04| 4| 11| |04| |30.22| 0.00| 71| 66| 83|13| 0| 6| |30.14| 0.00| 66| 61| 82|00| 0| 0| |30.00| 0.00| 74| 69| 84|06| 4| 20| |07| |30.25| 0.00| 68| 64| 88|00| 0| 0| |30.15| 0.00| 63| 60| 88|00| 0| 0| |29.99| 0.00| 77| 72| 86|04| 5| 12| |10| |30.26| 0.00| 76| 68| 77|13| 0| 10| |30.14| 0.00| 74| 63| 69|13| 0| 7| |29.98| 0.00| 81| 75| 81|04| 6| 16| |13| |30.22| 0.00| 84| 66| 55|24| 4| 14| |30.12| 0.00| 83| 63| 50|13| 5| 11| |29.93| 0.00| 85| 74| 70|04| 6| 18| |16| |30.15| 0.00| 87| 66| 50|13| 4| 11| |30.06| 0.00| 86| 63| 47|13| 4| 10| |29.87| 0.00| 86| 73| 65|04| 5| 19| |19| |30.13| 0.00| 82| 57| 42|13| 5| 16| |30.04| 0.00| 81| 65| 60|13| 4| 11| |29.87| 0.00| 80| 71| 75|04| 5| 16| |22| |30.16| 0.00| 74| 63| 68|13| 0| 5| |30.07| 0.00| 74| 67| 77|00| 0| 0| |29.89| 0.00| 77| 71| 82|04| 5| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| |29.91| 0.00| 77| 71| 84|00| 0| 7| |29.91| 0.00| 79| 69| 71|18| 4| 11| |29.87| 0.00| 80| 65| 60|24| 0| 11| |04| |29.92| 0.00| 75| 71| 87|24| 4| 12| |29.88| 0.00| 75| 67| 77|15| 4| 10| |29.89| 0.00| 78| 65| 65|27| 0| 6| |07| |29.96| 0.00| 72| 69| 89|24| 0| 6| |29.86| 0.00| 73| 68| 83|18| 4| 12| |29.93| 0.00| 76| 65| 70|00| 4| 11| |10| |30.00| 0.00| 78| 72| 82|24| 4| 11| |29.84| 0.00| 80| 71| 74|18| 5| 15| |30.00| 0.00| 78| 57| 49|00| 10| 18| |13| |29.99| 0.00| 85| 74| 68|24| 4| 11| |29.79| 0.00| 89| 72| 56|18| 6| 17| |30.03| 0.00| 81| 56| 43|33| 6| 15| |16| |29.92| 0.00| 91| 71| 52|27| 4| 14| |29.73| 0.00| 94| 68| 42|18| 6| 22| |30.01| 0.00| 83| 57| 41|04| 5| 16| |19| |29.92| 0.00| 87| 74| 67|13| 0| 10| |29.72| 0.00| 90| 66| 45|18| 0| 10| |30.03| 0.00| 78| 58| 50|13| 4| 12| |22| |29.93| 0.00| 82| 73| 74|13| 4| 14| |29.83| 0.00| 84| 67| 57|27| 4| 16| |30.08| 0.00| 72| 58| 60|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| |30.10| 0.00| 69| 59| 70|00| 0| 0| |30.11| 0.00| 69| 61| 74|00| 0| 0| |29.83| 0.00| 74| 72| 92|13| 4| 11| |04| |30.10| 0.00| 66| 59| 78|00| 0| 0| |30.10| 0.00| 67| 61| 80|00| 0| 0| |29.85| 0.12| 71| 67| 89|24| 6| 21| |07| |30.13| 0.00| 64| 58| 82|00| 0| 0| |30.10| 0.00| 67| 61| 83|00| 0| 0| |29.91| 0.00| 66| 63| 91|24| 0| 11| |10| |30.17| 0.00| 78| 60| 54|04| 6| 15| |30.10| 0.00| 77| 64| 66|13| 4| 12| |29.99| 0.00| 70| 64| 83|29| 5| 15| |13| |30.15| 0.00| 81| 59| 47|04| 5| 16| |30.06| 0.00| 83| 57| 40|13| 4| 14| |30.01| 0.00| 73| 56| 54|33| 10| 22| |16| |30.12| 0.00| 83| 61| 48|04| 5| 18| |29.97| 0.00| 85| 62| 47|13| 4| 13| |30.02| 0.00| 75| 55| 50|33| 7| 16| |19| |30.11| 0.00| 78| 59| 52|13| 4| 14| |29.93| 0.00| 79| 69| 71|13| 4| 12| |30.08| 0.00| 73| 52| 49|00| 6| 16| |22| |30.13| 0.00| 72| 61| 67|13| 0| 7| |29.90| 0.00| 76| 70| 84|13| 0| 12| |30.15| 0.00| 67| 49| 51|00| 10| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| |30.17| 0.00| 65| 48| 53|00| 7| 16| |30.25| 0.00| 55| 49| 78|00| 0| 4| |30.27| 0.00| 66| 53| 63|02| 6| 18| |04| |30.17| 0.00| 63| 46| 54|00| 5| 13| |30.25| 0.00| 53| 49| 84|00| 0| 0| |30.26| 0.00| 63| 52| 67|33| 5| 11| |07| |30.20| 0.00| 62| 44| 53|04| 5| 15| |30.28| 0.00| 57| 52| 83|33| 0| 6| |30.27| 0.00| 64| 53| 66|00| 6| 14| |10| |30.25| 0.00| 67| 48| 50|04| 10| 19| |30.31| 0.00| 69| 56| 63|33| 10| 19| |30.29| 0.00| 70| 58| 66|04| 11| 22| |13| |30.27| 0.00| 69| 49| 48|33| 7| 17| |30.31| 0.00| 71| 56| 60|04| 11| 19| |30.29| 0.00| 72| 58| 62|33| 10| 20| |16| |30.22| 0.00| 69| 49| 48|00| 6| 16| |30.29| 0.00| 72| 55| 55|04| 10| 23| |30.27| 0.00| 70| 59| 67|00| 11| 22| |19| |30.23| 0.00| 66| 49| 53|33| 6| 14| |30.27| 0.00| 69| 53| 58|04| 6| 19| |30.25| 0.00| 69| 58| 69|04| 10| 20| |22| |30.26| 0.00| 59| 49| 68|04| 0| 4| |30.29| 0.00| 66| 51| 60|04| 4| 12| |30.26| 0.00| 68| 59| 72|04| 7| 18| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.02 | 0.03 | 0.04 | 0.05 | 0.07 | 0.10 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0305 | 0310 | 0315 | 0320 | 0330 | 0345 | 0355 | 0355 | 0355 | 0355 | 0355 | 0355 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 2007: 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| |30.24| 0.00| 68| 60| 75|04| 7| 16| |30.15| 0.00| 69| 63| 81|04| 6| 15| |30.13| 0.00| 71| 68| 91|04| 5| 11| |04| |30.19| 0.00| 68| 63| 83|33| 6| 19| |30.13| 0.00| 69| 64| 85|33| 5| 12| |30.09| 0.00| 71| 68| 91|04| 4| 12| |07| |30.21| 0.00| 68| 64| 88|04| 6| 16| |30.15| 0.00| 70| 65| 85|04| 5| 11| |30.11| 0.00| 71| 68| 92|04| 0| 10| |10| |30.21| 0.00| 70| 65| 85|04| 7| 18| |30.17| 0.00| 71| 66| 85|04| 6| 13| |30.15| 0.00| 75| 70| 86|04| 4| 15| |13| |30.22| 0.01| 69| 66| 89|04| 6| 18| |30.15| 0.00| 73| 67| 82|04| 6| 15| |30.12| 0.00| 79| 72| 78|13| 0| 7| |16| |30.18| 0.00| 71| 65| 81|04| 7| 19| |30.14| 0.01| 72| 67| 86|04| 5| 16| |30.08| 0.00| 80| 71| 75|04| 6| 20| |19| |30.18| 0.00| 71| 65| 81|04| 7| 17| |30.12| 0.03| 71| 68| 91|04| 4| 14| |30.09| 0.00| 77| 70| 81|04| 4| 12| |22| |30.19| 0.00| 71| 64| 80|04| 6| 15| |30.11| 0.00| 70| 68| 91|04| 4| 10| |30.09| 0.00| 73| 69| 88|13| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| |30.08| 0.00| 71| 68| 91|00| 0| 0| |30.09| 0.00| 71| 68| 89|00| 0| 0| |30.19| 0.00| 62| 59| 90|00| 0| 0| |04| |30.08| 0.00| 69| 67| 93|00| 0| 0| |30.07| 0.00| 69| 67| 92|00| 0| 0| |30.19| 0.00| 60| 58| 92|29| 0| 4| |07| |30.09| 0.00| 70| 68| 93|00| 0| 0| |30.10| 0.00| 68| 66| 92|00| 0| 0| |30.21| 0.00| 59| 56| 92|00| 0| 0| |10| |30.11| 0.00| 76| 72| 86|24| 0| 11| |30.15| 0.00| 79| 70| 73|33| 7| 15| |30.23| 0.00| 73| 64| 73|33| 5| 11| |13| |30.07| 0.00| 84| 73| 69|13| 4| 11| |30.17| 0.00| 82| 71| 70|04| 10| 17| |30.22| 0.00| 79| 53| 40|33| 7| 17| |16| |30.04| 0.00| 86| 70| 58|00| 5| 12| |30.13| 0.00| 81| 64| 56|04| 7| 16| |30.18| 0.00| 80| 58| 48|04| 7| 17| |19| |30.05| 0.00| 85| 73| 67|13| 4| 10| |30.14| 0.00| 77| 65| 67|04| 5| 14| |30.18| 0.00| 75| 61| 60|04| 5| 13| |22| |30.08| 0.00| 75| 69| 83|13| 0| 5| |30.16| 0.00| 67| 61| 81|00| 0| 0| |30.20| 0.00| 66| 59| 80|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| |30.19| 0.00| 61| 58| 89|00| 0| 0| |30.13| 0.00| 68| 63| 83|18| 0| 6| |30.03| 0.00| 74| 69| 86|13| 0| 7| |04| |30.18| 0.00| 59| 56| 90|00| 0| 0| |30.11| 0.00| 65| 61| 87|18| 0| 5| |30.01| 0.00| 72| 69| 89|15| 0| 4| |07| |30.22| 0.00| 58| 56| 92|00| 0| 0| |30.11| 0.00| 63| 60| 90|18| 0| 5| |30.00| 0.00| 70| 68| 91|00| 0| 0| |10| |30.22| 0.00| 67| 66| 94|24| 0| 6| |30.11| 0.00| 70| 68| 92|18| 4| 11| |30.00| 0.00| 75| 72| 92|13| 0| 6| |13| |30.19| 0.00| 80| 64| 58|13| 4| 12| |30.06| 0.00| 84| 67| 57|15| 5| 12| |29.95| 0.00| 79| 69| 70|04| 4| 12| |16| |30.12| 0.00| 85| 64| 49|13| 4| 14| |30.01| 0.00| 88| 63| 44|15| 5| 12| |29.89| 0.00| 82| 71| 70|13| 4| 12| |19| |30.10| 0.00| 81| 66| 60|13| 5| 15| |30.01| 0.00| 83| 68| 60|13| 5| 18| |29.85| 0.00| 80| 70| 71|13| 4| 11| |22| |30.13| 0.00| 72| 65| 78|13| 4| 14| |30.04| 0.00| 77| 69| 78|13| 0| 7| |29.86| 0.00| 74| 68| 83|13| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| |29.86| 0.00| 71| 68| 89|18| 4| 10| |30.13| 0.00| 71| 49| 46|33| 12| 23| |30.37| 0.00| 58| 52| 80|00| 0| 0| |04| |29.85| 0.00| 70| 67| 91|15| 4| 7| |30.17| 0.00| 67| 49| 52|33| 6| 14| |30.38| 0.00| 55| 51| 87|02| 0| 4| |07| |29.86| 0.00| 70| 67| 92|15| 4| 15| |30.23| 0.00| 64| 47| 55|33| 5| 16| |30.41| 0.00| 53| 50| 89|00| 0| 0| |10| |29.92| 0.00| 73| 68| 85|27| 4| 12| |30.29| 0.00| 67| 52| 58|00| 11| 22| |30.43| 0.00| 71| 53| 54|04| 6| 19| |13| |29.94| 0.00| 79| 64| 61|00| 7| 18| |30.32| 0.00| 70| 53| 54|00| 11| 21| |30.44| 0.00| 74| 53| 48|04| 7| 18| |16| |29.93| 0.00| 82| 59| 46|29| 10| 20| |30.29| 0.00| 72| 54| 52|04| 10| 20| |30.40| 0.00| 75| 52| 45|04| 6| 17| |19| |29.98| 0.00| 78| 53| 42|33| 5| 16| |30.33| 0.00| 70| 53| 56|04| 7| 17| |30.41| 0.00| 70| 53| 54|04| 6| 18| |22| |30.08| 0.00| 74| 51| 44|33| 10| 20| |30.36| 0.00| 65| 55| 70|04| 0| 7| |30.42| 0.00| 65| 54| 67|02| 0| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
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| |30.133| 69| 62| 78| 1.8| 03 | 1.0| |04| |30.126| 67| 61| 82| 1.7| 34 | 0.6| |07| |30.146| 66| 61| 84| 1.5| 03 | 0.9| |10| |30.169| 73| 63| 72| 4.6| 01 | 2.7| |13| |30.161| 78| 62| 60| 5.5| 02 | 2.7| |16| |30.125| 79| 62| 56| 5.5| 04 | 3.0| |19| |30.122| 76| 61| 61| 4.0| 07 | 2.6| |22| |30.146| 71| 62| 72| 1.9| 03 | 1.1| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 2007: 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| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | |0.04|14 15| | | | |0.12| | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | |0.01|0.01| | | | | | | | | |19 20| | | | | | | | | | | | | | | | |0.01|0.01|0.01|0.03| |0.01| | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.00|0.00|0.00|0.12|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.01|0.01|0.00|0.01|0.01|0.01|0.03|0.00|0.01|0.00|0.04|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.)