LOCAL CLIMATOLOGICAL DATA Monthly Summary
April 2018
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| 74.0 | 41.1 | 57.5 | 57.4 | 45| 67| 7| 0|.........| 0| 0.00| 0.0| 30.19| 29.99|30.069| 0.0| 0.0| 0| 18|SSW| 0| 0| | |02| 65.3 | 44.2 | 54.8 | 54.1 | 49| 83| 10| 0|.........| 0| T | 0.0| 30.17| 29.89|30.014| 1.3| 1.3| 49| 26| NE| 0| 0| | |03| 78.2 | 44.4 | 61.3 | 58.9 | 53| 81| 4| 0|.........| 0| 0.00| 0.0| 30.16| 29.86|30.010| 0.0| 0.0| 0| 11| S| 0| 0| | |04| 81.1 | 51.8 | 66.4 | 68.5 | 55| 67| 0| 2|.........| 0| 0.02| 0.0| 30.00| 29.57|29.747| 1.9| 1.7|293| 32|WNW| 0| 0| | |05| 59.7 | 41.8 | 50.8 | 48.5 | 31| 52| 14| 0|.........| 0| 0.00| 0.0| 30.20| 30.03|30.140| 0.2| 0.2|315| 29| NW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 75.6 | 41.3 | 58.4 | 58.6 | 43| 61| 6| 0|.........| 0| 0.00| 0.0| 30.15| 29.81|29.972| 0.7| 0.7|208| 26| SW| 0| 0| | |07| 63.2 | 39.1 | 51.2 | 49.7 | 46| 90| 14| 0|1........| 0| 0.68| 0.0| 29.89| 29.78|29.827| 2.7| 2.5| 31| 30| N| 0| 0| | |08| 50.5 | 37.0*| 43.8*| 42.8 | 33| 69| 21| 0|1........| 0| 0.12| 0.0| 30.07| 29.79|29.926| 2.4| 2.2| 2| 27| NW| 0| 0| | |09| 53.8 | 39.5 | 46.7 | 46.1 | 38| 75| 18| 0|.........| 0| 0.00| 0.0| 30.20| 30.08|30.131| 0.0| 0.0| 0| 16|ENE| 0| 0| | |10| 53.9 | 42.8 | 48.3 | 48.8 | 40| 74| 16| 0|.........| 0| 0.00| 0.0| 30.20| 30.10|30.142| 0.2| 0.2| 45| 21| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 58.5 | 39.1 | 48.8 | 48.5 | 37| 66| 16| 0|.........| 0| 0.00| 0.0| 30.21| 30.12|30.160| 0.0| 0.0| 0| 12|ENE| 0| 0| | |12| 75.4 | 42.9 | 59.2 | 59.0 | 45| 64| 6| 0|.........| 0| 0.00| 0.0| 30.20| 30.00|30.111| 1.0| 1.0|207| 33|SSW| 0| 0| | |13| 83.0 | 56.8 | 69.9 | 68.9 | 56| 64| 0| 5|.........| 0| 0.00| 0.0| 30.12| 29.99|30.056| 1.6| 1.6|207| 29|SSW| 0| 0| | |14| 83.8*| 60.3 | 72.1 | 71.4 | 61| 72| 0| 7|.........| 0| 0.00| 0.0| 30.09| 29.95|30.031| 0.5| 0.5|210| 23| SW| 0| 0| | |15| 80.2 | 64.2 | 72.2*| 71.3 | 68| 89| 0| 7|.........| 0| 0.18| 0.0| 30.04| 29.74|29.942| 0.0| 0.0| 0| 22|SSE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 71.7 | 54.7 | 63.2 | 62.5 | 53| 73| 1| 0|.........| 0| 1.03| 0.0| 29.73| 29.51|29.610| 1.7| 1.4|188| 31| SE| 0| 0| | |17| 56.8 | 40.4 | 48.6 | 49.3 | 35| 58| 16| 0|.........| 0| 0.01| 0.0| 29.89| 29.75|29.815| 1.7| 1.7|268| 28| W| 0| 0| | |18| 72.5 | 45.7 | 59.1 | 56.2 | 45| 68| 5| 0|.........| 0| 0.00| 0.0| 29.94| 29.67|29.827| 0.0| 0.0| 0| 15|ENE| 0| 0| | |19| 74.6 | 47.3 | 60.9 | 60.7 | 48| 65| 4| 0|.........| 0| 0.00| 0.0| 30.15| 29.59|29.794| 1.5| 1.4|314| 31| NW| 0| 0| | |20| 60.9 | 38.3 | 49.6 | 50.0 | 32| 53| 15| 0|.........| 0| 0.00| 0.0| 30.36| 30.17|30.264| 1.2| 1.1|309| 26| NW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 60.8 | 38.0 | 49.4 | 49.8 | 39| 69| 15| 0|.........| 0| 0.00| 0.0| 30.46| 30.35|30.393| 0.0| 0.0| 0| 16|ENE| 0| 0| | |22| 68.9 | 42.3 | 55.6 | 54.8 | 41| 63| 9| 0|.........| 0| 0.00| 0.0| 30.40| 30.32|30.369| 0.0| 0.0| 0| 17|ENE| 0| 0| | |23| 70.4 | 48.7 | 59.6 | 59.2 | 47| 65| 5| 0|.........| 0| 0.00| 0.0| 30.40| 30.29|30.354| 0.0| 0.0| 0| 23|SSE| 0| 0| | |24| 61.8 | 56.9 | 59.3 | 59.0 | 57| 93| 5| 0|.........| 0| 0.59| 0.0| 30.27| 29.85|30.070| 0.0| 0.0| 0| 23| SE| 0| 0| | |25| 77.5 | 58.7 | 68.1 | 65.4 | 62| 90| 0| 4|1........| 0| T | 0.0| 29.83| 29.63|29.712| 0.0| 0.0| 0| 13|WNW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 75.1 | 58.4 | 66.8 | 63.3 | 55| 75| 0| 2|.........| 0| 0.01| 0.0| 29.88| 29.74|29.832| 0.0| 0.0| 0| 7|SSE| 0| 0| | |27| 78.5 | 58.1 | 68.3 | 66.9 | 59| 78| 0| 4|.........| 0| T | 0.0| 29.80| 29.68|29.739| 0.0| 0.0| 0| 15|NNW| 0| 0| | |28| 80.7 | 51.7 | 66.2 | 66.7 | 54| 68| 0| 2|1........| 0| 0.00| 0.0| 29.84| 29.73|29.790| 0.0| 0.0| 0| 18| W| 0| 0| | |29| 65.4 | 48.7 | 57.1 | 58.0 | 41| 55| 8| 0|.........| 0| 0.00| 0.0| 30.17| 29.84|30.028| 2.3| 1.8|330| 29| NE| 0| 0| | |30| 70.8 | 40.4 | 55.6 | 56.6 | 36| 52| 9| 0|.........| 0| 0.00| 0.0| 30.24| 30.09|30.168| 0.3| 0.3|293| 22|WNW| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2082.6|1414.6|------|------|---|----| 224| 33| Days | 2.64| 0.0| 30.46| 29.51|30.001| 0.7| 0.2|309| 33|SSW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-0.85" or 76% of normal +----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 69.5| 47.1| 58.3 | 57.7 | 47|69.9|----|----|≥.01 Inch 8|12.33| 16.3| 21 | 16 |------|----|----|---| 12 | 1+ | | + -0.5 -1.9 -1.2 +------+---+----+----+----+------------|-2.06" or 86% 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 |3208| 52|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 1.21| 15-16| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 0 | 0 |----|----| Clear 12 Partly Cloudy 14 Cloudy 4 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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: FROPA: 2nd, 4th, 7th, 16th, 19th, 25th, 27th, 29th
STATION RECORDS:
NONE

   MONTHLY AVERAGE MAXIMUM TEMP OF 69.5 WAS  0.5 BELOW NORMAL
   MONTHLY AVERAGE MINIMUM TEMP OF 47.1 WAS  1.9 BELOW NORMAL
   MONTHLY AVERAGE TEMPERATURE  OF 58.3 WAS  1.2 BELOW NORMAL

   MAXIMUM TEMP:  84 ON THE 14th
   MINIMUM TEMP:  37 ON THE  8th

   DAYS WITH TEMPERATURES:
        MAXIMUM >= 90:   0
        MAXIMUM <= 32:   0
        MINIMUM <= 32:   0
        MINIMUM <=  0:   0

   HEATING DEGREE DAYS:  230.5 
   COOLING DEGREE DAYS:    8.0

   DAYS WITH HEATING DEGREE DAYS:   22
   DAYS WITH COOLING DEGREE DAYS:    8

   PRECIP TOTAL OF  2.64" WAS 0.85" BELOW NORMAL (76% OF NORMAL)
   
   GREATEST DAILY RAINFALL:    1.03" on the 16th   
   GREATEST 24-HOUR RAINFALL:  1.21" on the 15th-16th

   DAYS WITH MEASUREABLE PRECIP: 9 OF 31 DAYS OR 29.03% 
   AVERAGE DAILY PRECIP: 0.09"
   NORMAL DAILY PRECIP:  0.12"
                                   
   DAYS WITH PRECIP >= 0.01"     8 
   DAYS WITH PRECIP >= 0.10"     5 
   DAYS WITH PRECIP >= 0.50"     3
   DAYS WITH PRECIP >= 1.00"     1

   DAYS WITH THUNDERSTORMS:   0   
   NUMBER OF THUNDERSTORMS:   0 

   DAYS WITH SNOW:     0  
   SNOWFALL TOTAL:   0.0" 
   SEASONAL SNOWFALL 2017-2018 (beginning November 2017): 16.4" 

   CLOUDY DAYS:           4
   PARTLY CLOUDY DAYS    14 
   SUNNY/CLEAR DAYS:     12
   DAYS WITH F/GF:        4
   DAYS WITH DENSE FOG:   0 
   DAYS WITH FROST:       0

   YEAR-TO-DATE

   YEARLY  AVERAGE MAXIMUM TEMP OF 57.8 WAS 0.0 NORMAL
   YEARLY  AVERAGE MINIMUM TEMP OF 38.4 WAS 0.3 BELOW NORMAL
   YEARLY  AVERAGE TEMPERATURE  OF 48.1 WAS 0.2 BELOW NORMAL

   MAXIMUM TEMP:  84 on April 14th 
   MINIMUM TEMP:   7 on January 6th 

   DAYS WITH TEMPERATURES:
        MAXIMUM >= 90:    0
        MAXIMUM <= 32:    7
        MINIMUM <= 32:   33
        MINIMUM <=  0:    0

   HEATING DEGREE DAYS:   2075.0
   COOLING DEGREE DAYS:     48.0

   DAYS WITH HEATING DEGREE DAYS:  106
   DAYS WITH COOLING DEGREE DAYS:   13
                               
   PRECIP TOTAL OF 12.33" WAS 12.06" BELOW NORMAL (86% OF NORMAL).

   GREATEST DAILY RAINFALL:     1.06" on March 20th  
   GREATEST 24-HOUR RAINFALL:   1.21" on January 28th-29th AND 1.21" on April 15th-16th
   DAYS WITH MEASUREABLE PRECIP:  40 of 120 or 33.33%

   AVERAGE DAILY PRECIP: 0.10" 
   NORMAL DAILY PRECIP:  0.12"

   DAYS WITH PRECIP >= 0.01"    40
   DAYS WITH PRECIP >= 0.10"    28
   DAYS WITH PRECIP >= 0.50"    11
   DAYS WITH PRECIP >= 1.00"     2

   DAYS WITH THUNDERSTORMS:   0
   NUMBER OF THUNDERSTORMS:   0 
                                  
   DAYS WITH SNOW  (calendar year 2018):    8
   SNOWFALL TOTAL  (calendar year 2018): 16.4" 
   SEASONAL SNOW 2017-2018 (beginning November 2017):  16.4"
    
   CLOUDY DAYS:          36
   PARTLY CLOUDY DAYS:   36 
   SUNNY/CLEAR DAYS:     48
   DAYS WITH F/GF:       29 
   DAYS WITH DENSE FOG:   1
   DAYS WITH FROST:      31
OBSERVATIONS AT 3-HOUR INTERVALS
April 2018: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |01| |30.19| 0.00| 42| 38| 86|00| 0| 0| |29.97| 0.00| 56| 49| 76|00| 0| 0| |30.16| 0.00| 45| 42| 88|06| 0| 4| |04| |30.12| 0.00| 42| 38| 87|00| 0| 0| |29.90| 0.00| 57| 54| 89|00| 0| 0| |30.11| 0.00| 45| 43| 91|00| 0| 0| |07| |30.12| 0.00| 42| 40| 91|00| 0| 0| |29.90| 0.00| 61| 57| 88|20| 0| 14| |30.09| 0.00| 47| 44| 92|00| 0| 0| |10| |30.11| 0.00| 58| 52| 79|20| 0| 5| |29.97| 0.00| 65| 58| 77|27| 0| 16| |30.08| 0.00| 52| 49| 87|00| 0| 0| |13| |30.06| 0.00| 69| 52| 55|18| 0| 13| |30.03| 0.00| 54| 47| 77|04| 0| 20| |30.01| 0.00| 66| 59| 78|18| 0| 4| |16| |30.00| 0.00| 74| 47| 38|24| 0| 16| |30.05| 0.00| 52| 45| 76|04| 5| 26| |29.92| 0.00| 76| 64| 66|18| 0| 11| |19| |30.00| 0.00| 70| 48| 45|00| 0| 0| |30.10| 0.00| 46| 42| 85|04| 4| 22| |29.92| 0.00| 73| 60| 62|24| 0| 6| |22| |30.02| 0.00| 60| 46| 58|00| 0| 0| |30.17| 0.00| 44| 40| 85|06| 0| 17| |29.88| 0.00| 63| 57| 81|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |01| |29.83| 0.00| 68| 65| 91|20| 0| 11| |30.03| 0.00| 50| 27| 40|31| 4| 24| |30.15| 0.00| 42| 38| 87|00| 0| 0| |04| |29.78| 0.00| 67| 65| 92|20| 0| 14| |30.09| 0.00| 45| 25| 44|31| 0| 29| |30.11| 0.00| 42| 39| 92|00| 0| 0| |07| |29.74| 0.00| 67| 65| 92|22| 0| 14| |30.16| 0.00| 42| 27| 54|33| 0| 14| |30.09| 0.00| 43| 41| 93|00| 0| 0| |10| |29.68| 0.00| 73| 67| 82|20| 0| 19| |30.20| 0.00| 46| 29| 52|29| 0| 13| |30.06| 0.00| 59| 45| 60|20| 0| 10| |13| |29.61| 0.00| 77| 70| 80|22| 0| 23| |30.19| 0.00| 51| 31| 46|31| 0| 12| |29.98| 0.00| 71| 44| 38|22| 0| 21| |16| |29.57| 0.02| 74| 66| 76|22| 4| 24| |30.12| 0.00| 58| 30| 34|24| 0| 4| |29.85| 0.00| 75| 43| 32|20| 4| 26| |19| |29.77| 0.00| 65| 32| 29|29| 4| 32| |30.13| 0.00| 51| 37| 58|11| 0| 5| |29.82| 0.00| 71| 39| 31|20| 0| 23| |22| |29.94| 0.00| 58| 30| 34|31| 5| 23| |30.15| 0.00| 44| 37| 78|00| 0| 0| |29.82| 0.00| 64| 51| 62|18| 0| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |01| |29.80| 0.00| 63| 52| 68|20| 0| 19| |29.81| 0.03| 39| 37| 94|00| 11| 24| |30.08| 0.00| 40| 35| 81|00| 0| 0| |04| |29.79| 0.00| 60| 54| 81|20| 0| 5| |29.80| 0.00| 38| 35| 91|00| 5| 25| |30.10| 0.00| 42| 37| 84|00| 0| 0| |07| |29.79| 0.23| 56| 54| 95|29| 0| 11| |29.85| 0.00| 38| 33| 82|31| 0| 23| |30.12| 0.00| 44| 38| 81|00| 0| 0| |10| |29.86| 0.01| 53| 49| 87|02| 0| 29| |29.94| 0.00| 42| 33| 70|31| 4| 27| |30.20| 0.00| 47| 34| 61|04| 0| 13| |13| |29.86| 0.01| 46| 44| 92|04| 4| 24| |29.95| 0.00| 45| 29| 54|06| 4| 23| |30.17| 0.00| 52| 40| 62|06| 0| 16| |16| |29.84| 0.02| 44| 41| 90|04| 0| 21| |29.93| 0.00| 49| 31| 48|29| 0| 16| |30.11| 0.00| 51| 41| 68|13| 0| 14| |19| |29.84| 0.03| 41| 40| 95|04| 4| 27| |29.98| 0.00| 49| 30| 47|06| 0| 7| |30.11| 0.00| 47| 40| 76|13| 0| 4| |22| |29.84| 0.01| 40| 38| 92|04| 5| 24| |30.06| 0.00| 43| 36| 74|00| 0| 0| |30.14| 0.00| 46| 41| 82|06| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |01| |30.12| 0.00| 46| 42| 84|00| 0| 0| |30.17| 0.00| 42| 39| 88|00| 0| 0| |30.17| 0.00| 44| 39| 83|00| 0| 0| |04| |30.11| 0.00| 47| 43| 84|31| 0| 11| |30.14| 0.00| 40| 36| 87|00| 0| 0| |30.14| 0.00| 44| 41| 91|20| 0| 7| |07| |30.14| 0.00| 47| 43| 87|00| 0| 0| |30.17| 0.00| 40| 36| 87|00| 0| 0| |30.17| 0.00| 43| 41| 93|00| 0| 0| |10| |30.18| 0.00| 49| 42| 77|06| 0| 18| |30.19| 0.00| 50| 36| 59|04| 0| 4| |30.20| 0.00| 60| 50| 68|20| 0| 15| |13| |30.17| 0.00| 51| 40| 68|06| 0| 18| |30.18| 0.00| 56| 36| 47|15| 0| 7| |30.15| 0.00| 72| 50| 46|20| 0| 22| |16| |30.10| 0.00| 53| 39| 59|04| 0| 14| |30.13| 0.00| 59| 37| 45|00| 0| 0| |30.04| 0.00| 75| 48| 38|22| 5| 27| |19| |30.10| 0.00| 52| 36| 54|04| 0| 7| |30.13| 0.00| 56| 37| 49|13| 0| 7| |30.00| 0.00| 71| 45| 40|20| 4| 28| |22| |30.17| 0.00| 46| 39| 76|00| 0| 0| |30.17| 0.00| 47| 35| 63|00| 0| 0| |30.05| 0.00| 62| 46| 57|20| 0| 21| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |01| |30.08| 0.00| 59| 47| 66|18| 0| 16| |30.06| 0.00| 64| 59| 83|20| 0| 15| |30.02| 0.00| 67| 64| 91|20| 0| 10| |04| |30.04| 0.00| 57| 49| 75|20| 0| 17| |30.05| 0.00| 62| 58| 86|22| 0| 11| |30.02| 0.00| 65| 63| 94|00| 0| 0| |07| |30.10| 0.00| 57| 52| 83|18| 0| 14| |30.09| 0.00| 60| 57| 90|00| 0| 0| |30.04| 0.00| 65| 64| 96|00| 0| 0| |10| |30.11| 0.00| 69| 58| 68|20| 4| 25| |30.09| 0.00| 72| 62| 71|20| 0| 22| |30.02| 0.00| 76| 71| 83|13| 0| 10| |13| |30.06| 0.00| 78| 58| 49|22| 4| 26| |30.04| 0.00| 80| 62| 54|20| 0| 19| |29.99| 0.15| 72| 70| 92|15| 0| 11| |16| |29.99| 0.00| 83| 57| 42|20| 0| 21| |29.97| 0.00| 84| 63| 50|20| 4| 21| |29.90| 0.00| 75| 72| 89|18| 0| 17| |19| |30.00| 0.00| 79| 58| 49|18| 0| 16| |29.96| 0.00| 79| 61| 54|22| 0| 14| |29.83| 0.00| 75| 70| 86|15| 0| 22| |22| |30.06| 0.00| 69| 60| 73|18| 0| 7| |30.02| 0.00| 70| 65| 83|18| 0| 12| |29.81| 0.00| 73| 70| 90|13| 0| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |01| |29.69| 0.00| 72| 69| 91|13| 0| 21| |29.75| 0.00| 52| 39| 60|29| 4| 21| |29.85| 0.00| 48| 39| 69|04| 0| 11| |04| |29.54| 0.38| 69| 68| 98|15| 4| 26| |29.79| 0.00| 46| 34| 64|24| 0| 13| |29.88| 0.00| 46| 37| 69|00| 0| 0| |07| |29.52| 0.00| 63| 62| 97|20| 0| 13| |29.85| 0.00| 40| 29| 64|27| 0| 14| |29.92| 0.00| 47| 38| 69|06| 0| 15| |10| |29.58| 0.00| 58| 50| 75|20| 4| 28| |29.89| 0.00| 47| 30| 53|24| 4| 23| |29.94| 0.00| 53| 41| 64|00| 0| 0| |13| |29.60| 0.00| 61| 51| 71|20| 0| 27| |29.82| 0.00| 52| 33| 48|27| 5| 24| |29.87| 0.00| 63| 49| 59|13| 0| 4| |16| |29.59| 0.00| 65| 50| 58|20| 4| 27| |29.78| 0.00| 55| 37| 50|27| 4| 22| |29.78| 0.00| 72| 54| 53|04| 0| 5| |19| |29.64| 0.00| 61| 44| 54|27| 0| 18| |29.78| 0.00| 56| 36| 47|27| 0| 13| |29.74| 0.00| 65| 54| 66|13| 0| 11| |22| |29.70| 0.00| 57| 41| 55|24| 0| 16| |29.82| 0.00| 48| 38| 70|00| 0| 0| |29.72| 0.00| 56| 50| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.05 | 0.09 | 0.14 | 0.18 | 0.27 | 0.40 | 0.53 | 0.65 | 0.78 | 0.91 | 0.97 | 1.03 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0404 | 0409 | 0414 | 0419 | 0429 | 0444 | 0500 | 0457 | 0458 | 0500 | 0500 | 0500 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
April 2018: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |01| |29.64| 0.00| 54| 52| 94|00| 0| 0| |30.17| 0.00| 47| 30| 52|31| 0| 22| |30.36| 0.00| 43| 38| 80|00| 0| 0| |04| |29.60| 0.00| 60| 53| 80|13| 0| 4| |30.19| 0.00| 44| 32| 63|00| 0| 0| |30.38| 0.00| 40| 37| 88|00| 0| 0| |07| |29.63| 0.00| 64| 54| 71|20| 0| 20| |30.25| 0.00| 39| 33| 79|00| 0| 0| |30.42| 0.00| 38| 36| 92|00| 0| 0| |10| |29.73| 0.00| 63| 53| 71|06| 0| 7| |30.29| 0.00| 49| 29| 46|31| 4| 23| |30.45| 0.00| 53| 42| 67|04| 0| 7| |13| |29.75| 0.00| 68| 54| 60|22| 0| 11| |30.29| 0.00| 53| 30| 40|29| 4| 22| |30.42| 0.00| 57| 42| 57|06| 0| 11| |16| |29.81| 0.00| 67| 51| 58|31| 4| 31| |30.25| 0.00| 60| 31| 34|33| 0| 19| |30.36| 0.00| 60| 39| 46|06| 0| 16| |19| |29.93| 0.00| 61| 39| 44|29| 4| 28| |30.26| 0.00| 60| 33| 36|29| 0| 7| |30.36| 0.00| 57| 41| 55|13| 0| 11| |22| |30.10| 0.00| 54| 37| 52|31| 4| 25| |30.34| 0.00| 49| 39| 67|00| 0| 0| |30.38| 0.00| 49| 39| 70|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |01| |30.39| 0.00| 46| 41| 80|15| 0| 4| |30.38| 0.00| 51| 44| 78|00| 0| 0| |30.27| 0.00| 57| 50| 76|15| 0| 4| |04| |30.38| 0.00| 44| 40| 85|00| 0| 0| |30.36| 0.00| 49| 44| 83|00| 0| 0| |30.21| 0.00| 58| 52| 81|06| 0| 5| |07| |30.39| 0.00| 42| 39| 88|00| 0| 0| |30.37| 0.00| 50| 46| 88|00| 0| 0| |30.18| 0.00| 58| 55| 91|11| 0| 13| |10| |30.40| 0.00| 61| 45| 57|13| 0| 4| |30.39| 0.00| 64| 51| 61|06| 0| 5| |30.17| 0.04| 58| 56| 94|11| 0| 6| |13| |30.37| 0.00| 67| 44| 43|09| 0| 4| |30.38| 0.00| 70| 50| 49|13| 0| 20| |30.09| 0.02| 60| 59| 96|09| 0| 6| |16| |30.34| 0.00| 66| 40| 39|06| 0| 15| |30.35| 0.00| 66| 46| 48|11| 0| 16| |29.97| 0.03| 59| 58| 98|11| 0| 21| |19| |30.32| 0.00| 59| 39| 47|15| 0| 13| |30.33| 0.00| 63| 45| 52|13| 0| 18| |29.92| 0.05| 60| 59| 99|13| 0| 23| |22| |30.37| 0.00| 53| 42| 66|00| 0| 0| |30.32| 0.00| 58| 45| 62|02| 0| 11| |29.89| 0.00| 61| 61|100|15| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |01| |29.83| 0.00| 61| 61| 99|00| 0| 0| |29.74| 0.00| 59| 57| 95|00| 0| 0| |29.80| 0.00| 59| 54| 84|00| 0| 0| |04| |29.75| 0.00| 59| 59| 99|00| 0| 0| |29.76| 0.00| 59| 59| 98|00| 0| 0| |29.76| 0.00| 59| 57| 96|00| 0| 0| |07| |29.73| 0.00| 59| 59|100|00| 0| 0| |29.83| 0.00| 60| 55| 85|00| 0| 0| |29.76| 0.00| 60| 59| 96|00| 0| 0| |10| |29.72| 0.00| 65| 64| 97|22| 0| 4| |29.87| 0.00| 61| 53| 74|27| 0| 4| |29.74| 0.00| 66| 61| 84|00| 0| 0| |13| |29.68| 0.00| 74| 66| 76|20| 0| 10| |29.87| 0.00| 67| 48| 51|04| 0| 4| |29.73| 0.00| 75| 62| 63|27| 0| 4| |16| |29.63| 0.00| 75| 64| 67|20| 0| 7| |29.83| 0.00| 75| 60| 60|18| 0| 4| |29.68| 0.00| 78| 60| 54|20| 0| 10| |19| |29.67| 0.00| 67| 62| 84|00| 0| 0| |29.85| 0.00| 66| 54| 64|13| 0| 6| |29.69| 0.00| 75| 60| 60|18| 0| 4| |22| |29.73| 0.00| 63| 61| 93|29| 0| 4| |29.86| 0.00| 60| 52| 76|00| 0| 0| |29.76| 0.00| 63| 58| 84|33| 0| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |01| |29.79| 0.00| 58| 55| 89|00| 0| 0| |29.84| 0.00| 64| 55| 73|22| 0| 10| |30.19| 0.00| 48| 39| 72|00| 0| 0| |04| |29.79| 0.00| 53| 52| 94|00| 0| 0| |29.91| 0.00| 59| 47| 65|04| 4| 27| |30.19| 0.00| 43| 39| 86|00| 0| 0| |07| |29.83| 0.00| 52| 51| 97|00| 0| 0| |30.00| 0.00| 54| 40| 61|33| 0| 20| |30.23| 0.00| 41| 39| 93|00| 0| 0| |10| |29.83| 0.00| 69| 61| 76|00| 0| 0| |30.06| 0.00| 53| 37| 54|29| 4| 26| |30.24| 0.00| 58| 38| 47|24| 0| 21| |13| |29.81| 0.00| 78| 53| 43|27| 0| 18| |30.06| 0.00| 59| 36| 42|31| 5| 26| |30.19| 0.00| 65| 33| 30|31| 0| 19| |16| |29.75| 0.00| 81| 55| 42|18| 0| 7| |30.04| 0.00| 63| 36| 37|31| 0| 21| |30.11| 0.00| 70| 30| 23|27| 0| 19| |19| |29.74| 0.00| 78| 51| 39|18| 0| 14| |30.06| 0.00| 63| 34| 34|31| 0| 21| |30.10| 0.00| 70| 34| 26|27| 0| 18| |22| |29.78| 0.00| 66| 56| 69|00| 0| 0| |30.14| 0.00| 52| 44| 74|00| 0| 0| |30.12| 0.00| 58| 36| 43|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| |30.011| 53| 46| 80| 0.6| 34 | 0.6| |04| |29.993| 51| 46| 84| 0.4| 05 | 0.2| |07| |30.016| 51| 46| 86| 0.0| 00 | 0.0| |10| |30.039| 58| 48| 70| 0.8| 26 | 0.5| |13| |30.013| 64| 48| 59| 0.9| 31 | 0.4| |16| |29.960| 66| 48| 54| 1.1| 23 | 0.6| |19| |29.970| 63| 45| 56| 0.7| 33 | 0.2| |22| |30.010| 56| 46| 72| 0.5| 34 | 0.3| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
April 2018: 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| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | |0.02| | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | |0.01| |0.01|0.07|0.23|0.06| |0.01|0.03|0.01|0.01|0.01| |0.02|0.05|0.05|0.03|0.03|0.02|0.01| |0.02|07 08|0.03|0.04|0.05| | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | |0.02|0.15|0.01| | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | |0.12|0.38|0.52|0.01| | | | | | | | | | | | | | | | | | |16 17| | |0.01| | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | |0.02| |0.02|0.04|0.04|0.06|0.05|0.02|0.05|0.08|0.03|0.10|0.02|0.05| |0.01| | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | |0.01| | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.03|0.04|0.19|0.38|0.54|0.10|0.23|0.08|0.04|0.05|0.09|0.08|0.18|0.07|0.08|0.07|0.15|0.07|0.08|0.03|0.03|0.01|0.00|0.02|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.)