LOCAL CLIMATOLOGICAL DATA Monthly Summary
September 2016
Station: KPWR Portsmouth, Virginia Latitude: 36° 59' 09" N Longitude: 76° 33' 00" W Elevation (ground): 13 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | 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 | m^2 | | | | | | | | | | |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| 90.9*| 73.2 | 82.1*| 78.9 | 74| 86| 0| 17|.......8.| 0| 0.16| 0.0| 29.93| 29.78|29.847| 0.2| 0.2| 45| 19|NNW| 0| 0| | |02| 78.4 | 69.1 | 73.8 | 75.1 | 70| 84| 0| 9|.........| 0| 0.28| 0.0| 30.02| 29.90|29.969| 1.7| 1.7| 45| 25| NE| 0| 0| | |03| 74.7 | 69.6 | 72.1 | 72.2 | 69| 91| 0| 8|.........| 0| 3.40| 0.0| 30.06| 29.72|29.871| 8.7| 8.5| 42| 55| NE| 0| 0| | |04| 77.4 | 69.1 | 73.3 | 73.0 | 65| 76| 0| 8|.........| 0| 0.00| 0.0| 30.18| 30.08|30.140| 2.1| 2.1| 45| 27| NE| 0| 0| | |05| 79.6 | 66.7 | 73.1 | 72.0 | 64| 76| 0| 9|.........| 0| 0.00| 0.0| 30.19| 30.08|30.138| 1.2| 0.9| 13| 23| NW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 87.9 | 65.7 | 76.8 | 76.5 | 66| 71| 0| 12|.........| 0| 0.00| 0.0| 30.08| 29.99|30.033| 1.4| 1.3|314| 30| NW| 0| 0| | |07| 84.5 | 69.3 | 76.9 | 77.4 | 72| 83| 0| 12|.........| 0| 0.00| 0.0| 30.06| 29.97|30.009| 0.5| 0.5|285| 18|WNW| 0| 0| | |08| 88.9 | 73.9 | 81.4 | 79.8 | 76| 88| 0| 17|1.3......| 0| 0.92| 0.0| 30.01| 29.91|29.956| 0.0| 0.0| 0| 17|SSW| 0| 0| | |09| 89.9 | 72.0 | 80.9 | 80.6 | 75| 83| 0| 16|.........| 0| 0.00| 0.0| 30.02| 29.95|29.972| 0.0| 0.0| 0| 14|SSW| 0| 0| | |10| 89.1 | 74.8 | 81.9 | 80.8 | 75| 83| 0| 17|.......8.| 0| 0.00| 0.0| 30.07| 29.98|30.015| 0.2| 0.2|180| 18|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 86.6 | 72.8 | 79.7 | 78.8 | 71| 79| 0| 15|..3....8.| 0| T | 0.0| 30.09| 29.97|30.013| 0.5| 0.5| 45| 20| NE| 0| 0| | |12| 83.3 | 70.2 | 76.8 | 77.5 | 67| 72| 0| 12|.........| 0| 0.00| 0.0| 30.17| 30.08|30.136| 0.2| 0.2| 45| 18| NE| 0| 0| | |13| 84.8 | 65.2 | 75.0 | 74.3 | 65| 74| 0| 10|.........| 0| 0.00| 0.0| 30.21| 30.11|30.160| 0.0| 0.0| 0| 11| S| 0| 0| | |14| 88.9 | 64.6 | 76.8 | 76.4 | 69| 78| 0| 12|.......8.| 0| 0.00| 0.0| 30.15| 30.01|30.087| 0.0| 0.0| 0| 15|SSW| 0| 0| | |15| 79.6 | 67.6 | 73.6 | 73.6 | 69| 85| 0| 9|.........| 0| T | 0.0| 30.17| 30.07|30.116| 2.4| 2.4| 45| 25| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 77.7 | 71.5 | 74.6 | 73.7 | 68| 82| 0| 10|.........| 0| 0.00| 0.0| 30.22| 30.15|30.184| 1.0| 1.0| 45| 19| NE| 0| 0| | |17| 85.8 | 69.8 | 77.8 | 76.9 | 70| 81| 0| 13|.........| 0| 0.00| 0.0| 30.19| 30.09|30.143| 0.0| 0.0| 0| 17|ENE| 0| 0| | |18| 88.4 | 70.8 | 79.6 | 79.0 | 75| 87| 0| 15|.........| 0| T | 0.0| 30.08| 29.97|30.025| 0.2| 0.2|112| 21| S| 0| 0| | |19| 89.0 | 71.8 | 80.4 | 77.8 | 75| 92| 0| 16|1.3......| 0| 2.42| 0.0| 29.99| 29.92|29.957| 0.2| 0.2| 45| 17| NE| 0| 0| | |20| 76.4 | 71.9 | 74.2 | 74.0 | 73| 98| 0| 9|1........| 0| 2.15| 0.0| 30.00| 29.94|29.974| 1.2| 1.2| 45| 26| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 74.6 | 71.1 | 72.8 | 72.9 | 73| 99| 0| 8|1........| 0| 4.75| 0.0| 30.05| 29.97|30.014| 1.4| 1.4| 45| 25| NE| 0| 0| | |22| 78.6 | 72.2 | 75.4 | 74.9 | 73| 94| 0| 11|1........| 0| 0.77| 0.0| 30.05| 30.00|30.021| 0.3| 0.3| 45| 20| NE| 0| 0| | |23| 80.3 | 67.0 | 73.7 | 74.6 | 71| 89| 0| 9|.........| 0| 0.00| 0.0| 30.03| 29.96|29.994| 0.0| 0.0| 0| 14| NE| 0| 0| | |24| 85.4 | 64.7 | 75.1 | 73.0 | 69| 88| 0| 10|12.......| 0| 0.00| 0.0| 30.08| 29.98|30.013| 0.8| 0.8| 45| 21| NE| 0| 0| | |25| 74.2 | 63.6 | 68.9 | 70.4 | 62| 77| 0| 4|.........| 0| 0.00| 0.0| 30.16| 30.08|30.123| 0.0| 0.0| 0| 15|ENE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 76.9 | 58.5*| 67.7*| 68.5 | 63| 83| 0| 3|.........| 0| 0.00| 0.0| 30.15| 30.00|30.083| 0.0| 0.0| 0| 7| SE| 0| 0| | |27| 78.6 | 69.3 | 73.9 | 73.3 | 70| 91| 0| 9|.........| 0| 0.00| 0.0| 29.98| 29.88|29.923| 0.0| 0.0| 0| 6| SE| 0| 0| | |28| 82.1 | 66.3 | 74.2 | 73.5 | 70| 90| 0| 9|.........| 0| 0.01| 0.0| 29.99| 29.90|29.940| 0.0| 0.0| 0| 13| SE| 0| 0| | |29| 78.6 | 70.0 | 74.3 | 73.5 | 72| 95| 0| 10|1........| 0| 0.61| 0.0| 30.05| 29.98|30.020| 0.0| 0.0| 0| 18| NE| 0| 0| | |30| 83.2 | 68.8 | 76.0 | 75.4 | 73| 92| 0| 11|1........| 0| 0.00| 0.0| 30.06| 29.99|30.021| 0.0| 0.0| 0| 12| S| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2474.3|2071.1|------|------|---|----| 0| 330| Days |15.47| 0.0| 30.22| 29.72|30.030| 0.8| 0.7| 38| 55| NE| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|+9.87" or 276% of normal ------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 82.5| 69.1| 75.8 | 75.3 | 70|84.9|----|----|≥.01 Inch 10|51.59| 0.0| 16 | 3 |------|----|----|---| 3 | 1+ | | + +1.8 +4.6 +3.2 ------+---+----+----+----+------------|+11.80" or 130% 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|1956|Thunder 3|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 1| 5.27| 20-21| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 2 | 0 | 0 | 0 |----|----| Clear 9 Partly Cloudy 11 Cloudy 10 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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: Solar Radiation 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: SEPTEMBER 2016 WAS THE 2ND WETTEST & 2ND WARMEST SEPTEMBER IN THE DATABASE TO 1976
The top five wettest Septembers include: 1) 21.91" in 1991 2) 15.47" 2016 3) 15.28" 2010 4) 14.89" 2014 5) 10.29" 1979. The top five warmest Septembers include: 1) 76.0 1980 2) 75.8 2016 3) 75.7 1977 4) 75.6 1998 5) 75.2 2005. FROPA: 1st, 3rd (Tropical Storm Hermine), 11th, 15th, 25th
STATION RECORDS:
3rd - RAINFALL 3.40" [previous 0.67" in 2013]
3rd - WIND GUST 55MPH [previous 32mph 1989]
11th - TEMPERATURE TIED Maximum low 73 [previous 1985]
19th - RAINFALL 2.42" [previous 1.05" 1992]
20th- RAINFALL 2.15" [previous 0.72" 1982]
21st - RAINFALL 4.75" [previous 1.75" 1983] MONTHLY AVERAGE MAXIMUM TEMP OF 82.5 WAS 1.8 ABOVE NORMAL MONTHLY AVERAGE MINIMUM TEMP OF 69.1 WAS 4.6 ABOVE NORMAL MONTHLY AVERAGE TEMP OF 75.8 WAS 3.2 ABOVE NORMAL MAXIMUM TEMP: 91 ON THE 1st MINIMUM TEMP: 58 ON THE 26th DAYS WITH TEMPERATURES: MAXIMUM >= 90: 2 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 0.0 COOLING DEGREE DAYS: 324.0 DAYS WITH HEATING DEGREE DAYS: 0 DAYS WITH COOLING DEGREE DAYS: 30 PRECIP TOTAL OF 15.47" WAS 9.87" ABOVE NORMAL (276% OF NORMAL) GREATEST DAILY RAINFALL: 4.75" on the 21st GREATEST 24-HOUR RAINFALL: 5.27" on the 20th-21st DAYS WITH MEASUREABLE PRECIP: 10 OF 30 DAYS OR 33.33% AVERAGE DAILY PRECIP: 0.52" NORMAL DAILY PRECIP: 0.19" DAYS WITH PRECIP >= 0.01" 10 DAYS WITH PRECIP >= 0.10" 9 DAYS WITH PRECIP >= 0.50" 7 DAYS WITH PRECIP >= 1.00" 4 DAYS WITH THUNDERSTORMS: 3 NUMBER OF THUNDERSTORMS: 3 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" SEASONAL SNOWFALL 2015-2016 (beginning November 2015): 4.6" CLOUDY DAYS: 10 PARTLY CLOUDY DAYS 11 SUNNY/CLEAR DAYS: 9 DAYS WITH F/GF: 8 DAYS WITH DENSE FOG: 1 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 73.7 WAS 1.5 ABOVE NORMAL YEARLY AVERAGE MINIMUM TEMP OF 56.2 WAS 2.2 ABOVE NORMAL YEARLY AVERAGE TEMP OF 65.0 WAS 1.9 ABOVE NORMAL MAXIMUM TEMP: 99 on July 28th MINIMUM TEMP: 17 on February 14th DAYS WITH TEMPERATURES: MAXIMUM >= 90: 52 MAXIMUM <= 32: 4 MINIMUM <= 32: 29 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 1925.5 COOLING DEGREE DAYS: 1914.0 DAYS WITH HEATING DEGREE DAYS: 120 DAYS WITH COOLING DEGREE DAYS: 153 PRECIP TOTAL OF 51.59" WAS 11.80" ABOVE NORMAL ( 130% OF NORMAL). GREATEST DAILY RAINFALL: 4.75" on September 21th GREATEST 24-HOUR RAINFALL: 5.27" on September 20th - 21st DAYS WITH MEASUREABLE PRECIP: 100 of 274 or 36.50% AVERAGE DAILY PRECIP: 0.19" NORMAL DAILY PRECIP: 0.15" DAYS WITH PRECIP >= 0.01" 110 DAYS WITH PRECIP >= 0.10" 66 DAYS WITH PRECIP >= 0.50" 30 DAYS WITH PRECIP >= 1.00" 13 DAYS WITH THUNDERSTORMS: 28 NUMBER OF THUNDERSTORMS: 30 DAYS WITH SNOW (calendar year 2016): 12 SNOWFALL TOTAL (calendar year 2016): 4.6" SEASONAL SNOW 2015-2016 (beginning November 2015): 4.6" CLOUDY DAYS: 55 PARTLY CLOUDY DAYS: 115 SUNNY/CLEAR DAYS: 104 DAYS WITH F/GF: 79 DAYS WITH DENSE FOG: 2 DAYS WITH FROST: 14
OBSERVATIONS AT 3-HOUR INTERVALS
September 2016: KPWR Portsmouth, Virginia
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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| |29.88| 0.00| 76| 74| 91|00| 0| 0| |29.93| 0.00| 74| 74| 97|00| 0| 0| |29.88| 0.17| 70| 68| 95|04| 5| 24| |04| |29.84| 0.00| 75| 73| 95|20| 0| 4| |29.91| 0.00| 74| 74| 98|00| 0| 0| |29.73| 0.43| 73| 72| 98|04| 11| 32| |07| |29.84| 0.00| 73| 72| 95|00| 0| 0| |29.97| 0.00| 76| 71| 86|06| 0| 14| |29.73| 0.26| 72| 72| 98|04| 13| 52| |10| |29.84| 0.00| 83| 76| 81|22| 0| 6| |30.00| 0.00| 77| 69| 77|04| 4| 18| |29.76| 0.40| 72| 71| 97|04| 16| 53| |13| |29.79| 0.00| 90| 75| 62|22| 0| 11| |30.02| 0.00| 78| 70| 76|04| 0| 16| |29.84| 0.05| 74| 72| 92|04| 10| 38| |16| |29.80| 0.00| 83| 77| 82|00| 0| 17| |30.01| 0.00| 77| 68| 73|04| 4| 17| |29.91| 0.00| 74| 71| 89|04| 7| 31| |19| |29.85| 0.00| 78| 73| 85|04| 0| 10| |29.99| 0.00| 76| 68| 76|04| 0| 17| |30.00| 0.00| 72| 67| 84|04| 6| 31| |22| |29.91| 0.00| 75| 74| 95|00| 0| 0| |29.95| 0.02| 70| 67| 92|04| 4| 25| |30.05| 0.00| 72| 64| 76|04| 4| 21| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| |30.08| 0.00| 72| 64| 76|04| 4| 27| |30.17| 0.00| 69| 63| 82|04| 0| 7| |30.07| 0.00| 67| 63| 87|00| 0| 0| |04| |30.09| 0.00| 71| 64| 78|04| 0| 12| |30.15| 0.00| 67| 63| 86|00| 0| 0| |30.04| 0.00| 68| 64| 87|24| 0| 4| |07| |30.12| 0.00| 70| 66| 85|04| 0| 18| |30.17| 0.00| 67| 64| 88|31| 0| 7| |30.07| 0.00| 66| 63| 89|00| 0| 0| |10| |30.16| 0.00| 71| 67| 86|04| 0| 18| |30.18| 0.00| 73| 64| 74|33| 4| 19| |30.08| 0.00| 76| 67| 74|31| 4| 17| |13| |30.17| 0.00| 76| 66| 71|04| 4| 18| |30.16| 0.00| 78| 63| 60|04| 4| 20| |30.04| 0.00| 84| 65| 52|33| 4| 18| |16| |30.15| 0.00| 76| 63| 63|04| 5| 23| |30.11| 0.00| 78| 64| 62|04| 4| 17| |30.00| 0.00| 88| 65| 47|31| 6| 20| |19| |30.15| 0.00| 75| 65| 73|04| 4| 18| |30.09| 0.00| 76| 65| 71|00| 0| 5| |30.00| 0.00| 86| 68| 55|31| 0| 14| |22| |30.18| 0.00| 71| 63| 75|04| 0| 14| |30.09| 0.00| 70| 64| 83|00| 0| 0| |30.01| 0.00| 77| 69| 75|24| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| |29.99| 0.00| 74| 67| 80|00| 0| 0| |29.97| 0.00| 76| 74| 92|00| 0| 0| |29.95| 0.00| 77| 75| 93|20| 0| 5| |04| |29.99| 0.00| 72| 67| 84|27| 0| 5| |29.95| 0.00| 74| 73| 96|00| 0| 0| |29.95| 0.00| 75| 71| 89|20| 0| 10| |07| |30.01| 0.00| 69| 66| 90|00| 0| 0| |29.99| 0.57| 75| 74| 98|27| 0| 4| |29.97| 0.00| 72| 70| 92|20| 0| 5| |10| |30.05| 0.00| 78| 72| 83|24| 0| 10| |30.00| 0.00| 75| 75| 99|15| 0| 12| |29.99| 0.00| 80| 74| 83|20| 0| 10| |13| |30.05| 0.00| 82| 73| 76|29| 4| 14| |29.98| 0.00| 83| 78| 84|20| 0| 17| |29.98| 0.00| 87| 78| 73|20| 0| 12| |16| |30.01| 0.00| 83| 75| 76|24| 0| 15| |29.92| 0.00| 88| 76| 68|29| 0| 15| |29.95| 0.00| 88| 79| 73|20| 0| 7| |19| |29.97| 0.00| 83| 75| 78|29| 0| 4| |29.91| 0.00| 86| 78| 77|22| 0| 7| |29.96| 0.00| 84| 77| 79|15| 0| 6| |22| |29.98| 0.00| 77| 74| 90|00| 0| 0| |29.94| 0.00| 80| 77| 89|02| 0| 6| |30.01| 0.00| 80| 75| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| |30.03| 0.00| 78| 74| 89|20| 0| 12| |30.01| 0.00| 75| 72| 90|22| 0| 11| |30.09| 0.00| 78| 69| 73|02| 0| 12| |04| |30.00| 0.00| 76| 74| 94|13| 0| 4| |29.97| 0.00| 74| 72| 94|13| 0| 7| |30.08| 0.00| 77| 65| 67|00| 0| 0| |07| |30.03| 0.00| 75| 73| 95|00| 0| 0| |29.97| 0.00| 73| 72| 96|00| 0| 0| |30.12| 0.00| 73| 66| 78|00| 0| 0| |10| |30.07| 0.00| 80| 76| 88|22| 0| 10| |30.01| 0.00| 80| 75| 86|22| 0| 12| |30.16| 0.00| 78| 68| 70|04| 4| 18| |13| |30.03| 0.00| 88| 79| 75|24| 0| 10| |30.02| 0.00| 86| 76| 72|33| 0| 14| |30.16| 0.00| 82| 67| 61|04| 0| 12| |16| |29.99| 0.00| 88| 77| 69|24| 0| 7| |30.01| 0.00| 86| 73| 66|04| 4| 18| |30.14| 0.00| 82| 67| 60|04| 0| 16| |19| |29.98| 0.00| 85| 75| 71|13| 0| 14| |30.03| 0.00| 79| 68| 70|04| 0| 11| |30.13| 0.00| 78| 68| 71|04| 0| 13| |22| |30.01| 0.00| 78| 73| 85|18| 0| 12| |30.07| 0.00| 79| 67| 66|04| 0| 14| |30.17| 0.00| 72| 68| 86|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| |30.17| 0.00| 69| 66| 90|00| 0| 0| |30.13| 0.00| 68| 63| 84|00| 0| 0| |30.07| 0.00| 73| 68| 85|00| 0| 0| |04| |30.16| 0.00| 67| 65| 93|00| 0| 0| |30.11| 0.00| 66| 63| 89|00| 0| 0| |30.07| 0.00| 70| 67| 90|00| 0| 0| |07| |30.19| 0.00| 65| 63| 93|00| 0| 0| |30.14| 0.00| 65| 63| 93|00| 0| 0| |30.08| 0.00| 68| 66| 93|00| 0| 0| |10| |30.21| 0.00| 76| 65| 70|00| 0| 0| |30.14| 0.00| 76| 69| 79|20| 0| 11| |30.11| 0.00| 79| 73| 83|04| 5| 20| |13| |30.18| 0.00| 83| 67| 58|18| 0| 11| |30.09| 0.00| 87| 74| 66|20| 0| 14| |30.13| 0.00| 79| 72| 79|04| 5| 21| |16| |30.11| 0.00| 85| 66| 54|13| 0| 10| |30.03| 0.00| 89| 73| 60|24| 0| 11| |30.12| 0.00| 75| 69| 81|04| 5| 22| |19| |30.13| 0.00| 79| 62| 57|18| 0| 4| |30.03| 0.00| 84| 72| 66|00| 0| 0| |30.14| 0.00| 73| 68| 85|04| 4| 20| |22| |30.15| 0.00| 72| 64| 77|00| 0| 0| |30.05| 0.00| 78| 71| 79|00| 0| 0| |30.17| 0.00| 73| 68| 85|04| 4| 25| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| |30.16| 0.00| 73| 68| 86|06| 0| 15| |30.19| 0.00| 71| 67| 88|06| 0| 6| |30.08| 0.00| 73| 72| 95|00| 0| 0| |04| |30.15| 0.00| 73| 69| 87|04| 0| 17| |30.17| 0.00| 71| 69| 91|06| 0| 5| |30.06| 0.00| 72| 71| 96|00| 0| 0| |07| |30.17| 0.00| 72| 68| 85|04| 0| 17| |30.17| 0.00| 71| 69| 93|00| 0| 0| |30.05| 0.00| 71| 70| 97|22| 0| 5| |10| |30.22| 0.00| 74| 68| 82|04| 0| 16| |30.19| 0.00| 78| 72| 81|04| 0| 10| |30.07| 0.00| 79| 76| 91|13| 0| 7| |13| |30.21| 0.00| 78| 69| 75|04| 0| 17| |30.15| 0.00| 84| 70| 63|18| 0| 6| |30.03| 0.00| 88| 79| 74|18| 0| 13| |16| |30.18| 0.00| 76| 68| 78|04| 0| 18| |30.10| 0.00| 85| 71| 64|04| 0| 6| |29.97| 0.00| 88| 78| 72|13| 0| 17| |19| |30.18| 0.00| 74| 67| 81|04| 0| 16| |30.10| 0.00| 80| 72| 75|06| 0| 7| |29.97| 0.00| 83| 77| 81|13| 0| 12| |22| |30.20| 0.00| 72| 66| 82|04| 0| 10| |30.11| 0.00| 75| 71| 88|00| 0| 0| |30.00| 0.00| 78| 76| 93|15| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.11 | 0.22 | 0.33 | 0.43 | 0.65 | 0.97 | 1.29 | 1.52 | 1.75 | 1.97 | 2.09 | 2.23 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1604 | 1609 | 1614 | 1619 | 1629 | 1644 | 1700 | 1719 | 1739 | 1800 | 1757 | 1800 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 2016: KPWR Portsmouth, Virginia
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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| |29.99| 0.00| 77| 76| 96|00| 0| 0| |29.98| 0.20| 73| 72| 99|04| 0| 5| |30.00| 0.41| 71| 71| 99|04| 0| 16| |04| |29.97| 0.00| 76| 75| 97|00| 0| 0| |29.94| 0.00| 73| 73| 99|04| 0| 14| |29.98| 0.71| 73| 73|100|04| 4| 21| |07| |29.97| 0.00| 75| 75| 98|00| 0| 0| |29.96| 0.02| 73| 73| 99|04| 0| 19| |30.00| 0.14| 72| 72|100|04| 0| 18| |10| |29.95| 0.00| 82| 78| 87|18| 0| 14| |29.99| 0.17| 74| 74| 99|04| 0| 17| |30.04| 0.03| 72| 72|100|04| 0| 17| |13| |29.93| 0.00| 88| 79| 74|20| 0| 12| |29.98| 0.00| 76| 75| 95|04| 4| 21| |30.03| 0.00| 73| 73| 98|06| 0| 15| |16| |29.92| 0.26| 80| 76| 87|31| 0| 13| |29.96| 0.05| 75| 74| 98|04| 4| 19| |30.01| 0.14| 74| 73| 99|04| 0| 17| |19| |29.98| 0.03| 74| 73| 98|00| 0| 0| |29.98| 0.04| 75| 74| 98|04| 4| 24| |30.01| 0.13| 74| 74| 99|04| 0| 22| |22| |29.97| 0.00| 73| 73| 99|00| 0| 0| |30.00| 0.44| 74| 73| 99|06| 0| 16| |30.03| 0.04| 73| 73| 99|06| 0| 21| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| |30.03| 0.03| 73| 72| 99|04| 0| 13| |30.00| 0.00| 74| 72| 94|06| 0| 5| |29.99| 0.00| 66| 65| 95|00| 0| 0| |04| |30.01| 0.02| 72| 72|100|02| 0| 4| |29.99| 0.00| 73| 72| 96|06| 0| 4| |29.98| 0.00| 65| 64| 97|00| 0| 0| |07| |30.03| 0.02| 73| 73|100|00| 0| 0| |30.01| 0.00| 71| 70| 98|00| 0| 0| |30.00| 0.00| 66| 66| 98|00| 0| 0| |10| |30.05| 0.01| 75| 74| 98|00| 0| 0| |30.03| 0.00| 76| 73| 90|06| 0| 5| |30.01| 0.00| 73| 73|100|29| 0| 10| |13| |30.04| 0.00| 77| 74| 90|04| 0| 15| |30.01| 0.00| 79| 73| 82|33| 0| 10| |30.00| 0.00| 84| 72| 67|29| 0| 6| |16| |30.00| 0.00| 78| 74| 87|04| 4| 20| |29.97| 0.00| 80| 73| 78|06| 0| 6| |29.99| 0.00| 81| 73| 77|04| 4| 18| |19| |30.01| 0.00| 76| 73| 90|06| 0| 5| |29.97| 0.00| 77| 70| 78|00| 0| 0| |30.03| 0.00| 75| 71| 87|04| 0| 15| |22| |30.03| 0.00| 74| 71| 91|02| 0| 11| |29.99| 0.00| 69| 67| 91|00| 0| 0| |30.07| 0.00| 73| 69| 87|04| 0| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| |30.08| 0.00| 72| 68| 86|04| 0| 11| |30.15| 0.00| 63| 60| 89|00| 0| 0| |29.98| 0.00| 71| 68| 90|13| 0| 6| |04| |30.08| 0.00| 71| 67| 89|04| 0| 7| |30.13| 0.00| 60| 58| 92|00| 0| 0| |29.95| 0.00| 71| 69| 93|00| 0| 0| |07| |30.12| 0.00| 70| 63| 80|06| 0| 6| |30.11| 0.00| 59| 57| 96|00| 0| 0| |29.95| 0.00| 70| 68| 92|00| 0| 0| |10| |30.15| 0.00| 71| 62| 72|06| 0| 11| |30.13| 0.00| 70| 62| 76|06| 0| 6| |29.95| 0.00| 72| 71| 94|00| 0| 0| |13| |30.15| 0.00| 73| 61| 66|04| 0| 15| |30.11| 0.00| 76| 63| 64|13| 0| 6| |29.92| 0.00| 78| 73| 84|00| 0| 0| |16| |30.11| 0.00| 74| 62| 66|06| 0| 15| |30.05| 0.00| 75| 64| 69|18| 0| 4| |29.88| 0.00| 78| 73| 85|20| 0| 6| |19| |30.12| 0.00| 71| 60| 68|04| 0| 6| |30.01| 0.00| 73| 67| 81|15| 0| 4| |29.88| 0.00| 75| 72| 90|13| 0| 4| |22| |30.14| 0.00| 64| 60| 85|06| 0| 4| |30.03| 0.00| 72| 68| 87|00| 0| 0| |29.89| 0.00| 71| 70| 94|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| |29.91| 0.00| 69| 68| 96|00| 0| 0| |30.01| 0.00| 72| 70| 95|00| 0| 0| |30.01| 0.00| 71| 70| 96|00| 0| 0| |04| |29.91| 0.00| 68| 67| 97|00| 0| 0| |29.99| 0.00| 70| 70| 98|00| 0| 0| |30.00| 0.00| 71| 71| 98|00| 0| 0| |07| |29.92| 0.01| 67| 66| 98|00| 0| 0| |30.01| 0.49| 70| 70| 99|27| 0| 11| |30.03| 0.00| 69| 68| 98|00| 0| 0| |10| |29.96| 0.00| 74| 73| 98|20| 0| 6| |30.05| 0.02| 75| 75|100|00| 0| 0| |30.05| 0.00| 75| 73| 93|04| 0| 4| |13| |29.95| 0.00| 81| 74| 80|18| 0| 4| |30.05| 0.00| 79| 75| 90|04| 0| 14| |30.03| 0.00| 82| 76| 83|06| 0| 7| |16| |29.92| 0.00| 79| 73| 81|13| 0| 13| |30.01| 0.00| 76| 74| 92|04| 0| 4| |29.99| 0.00| 81| 76| 83|15| 0| 6| |19| |29.94| 0.00| 76| 71| 86|13| 0| 6| |30.01| 0.00| 74| 72| 94|04| 0| 14| |30.02| 0.00| 78| 75| 91|00| 0| 0| |22| |29.97| 0.00| 74| 72| 93|13| 0| 7| |30.04| 0.00| 74| 73| 96|00| 0| 0| |30.03| 0.00| 75| 74| 95|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
WEATHER NOTES SUMMARY BY HOURS
+--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |01| |30.031| 72| 69| 90| 0.3| 05 | 0.3| |04| |30.012| 71| 69| 92| 0.5| 05 | 0.5| |07| |30.030| 70| 68| 93| 0.4| 05 | 0.4| |10| |30.053| 76| 71| 86| 1.2| 03 | 1.1| |13| |30.042| 81| 72| 75| 1.2| 03 | 0.9| |16| |30.011| 81| 71| 75| 1.6| 04 | 1.4| |19| |30.019| 78| 71| 80| 0.6| 05 | 0.6| |22| |30.041| 74| 70| 87| 0.4| 05 | 0.4| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 2016: KPWR Portsmouth, Virginia
---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | 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| | | | | | | | | | | | | | | | |0.01| | |0.07|0.08| | | |01 02| | | | | | | | | | | | | | | | | | | |0.07|0.07|0.02|0.02|0.10|02 03|0.17|0.30|0.43|0.43|0.68|0.35|0.26|0.05|0.03|0.40|0.14|0.04|0.05|0.01|0.06| | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | |0.26|0.57|0.09| | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | |0.03| | |0.02|0.26|1.28|0.68|0.03|0.08|0.01| | |0.03|19 20|0.20|0.02|0.01| | | |0.02|0.01|0.08|0.17|0.07| | |0.01|0.05|0.05|0.05|0.02|0.04|0.22|0.15|0.44|0.41|0.13|20 | | | | | | | | | | | | | | | | | | | | | | | | | 21|0.41|0.36|0.23|0.71|1.13|0.13|0.14|0.10|0.12|0.03|0.03|0.05| | |0.15|0.14|0.02|0.04|0.13|0.12| |0.04|0.58|0.09|21 22|0.03|0.54|0.07|0.02|0.01|0.07|0.02| | |0.01| | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | |0.01| | | | | | | | | | | | | | | | | |28 29| | | | | | |0.49|0.09|0.01|0.02| | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.81|1.22|0.74|1.16|1.82|0.81|1.51|0.34|0.24|0.63|0.24|0.12|0.05|0.02|0.28|0.45|1.36|0.74|0.20|0.56|0.31|0.50|1.01|0.35|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.)