WILMINGTON PORTER RSVR, DELAWARE

Period of Record General Climate Summary - Temperature

From Year=1931 To Year=2012
Station:(079605) WILMINGTON PORTER RSVR
Averages Daily Extremes
Monthly Averages Daily Extremes Monthly Extremes Max. Temp. Min. Temp.
Max. Min. Mean High Date Low Date Highest
Mean
Year Lowest
Mean
Year >=
90 F
<=
32 F
<=
32 F
<=
0 F
F F F F dd/yyyy
or
yyyymmdd
F dd/yyyy
or
yyyymmdd
F - F - # Days # Days # Days # Days
January 39.5 24.5 32.0 74 26/1950 -9 17/1982 44.2 32 20.1 77 0.0 7.5 24.6 0.3
February 41.7 25.4 33.6 74 24/1985 -15 09/1934 41.8 98 20.2 34 0.0 4.8 22.0 0.2
March 50.8 32.8 41.8 87 30/1998 5 04/1943 51.5 45 33.1 60 0.0 0.8 15.1 0.0
April 62.1 42.1 52.1 94 22/1985 19 07/1982 57.6 94 46.7 75 0.0 0.0 2.9 0.0
May 72.4 52.2 62.3 94 22/1941 29 01/1978 69.0 91 55.0 67 0.6 0.0 0.1 0.0
June 80.9 61.5 71.2 98 26/1952 40 01/1945 76.1 110 66.5 72 3.1 0.0 0.0 0.0
July 85.0 66.3 75.7 103 10/1936 38 28/1935 80.4 111 71.6 62 6.4 0.0 0.0 0.0
August 83.3 65.0 74.1 100 09/2001 43 29/1982 77.9 105 69.6 46 4.1 0.0 0.0 0.0
September 76.6 57.9 67.2 97 01/1932 32 27/1940 71.9 105 62.5 63 0.9 0.0 0.0 0.0
October 65.5 46.7 56.1 94 05/1941 23 28/1936 62.5 107 51.1 88 0.0 0.0 1.2 0.0
November 54.2 37.4 45.8 84 01/1950 12 26/1938 51.5 101 39.0 76 0.0 0.2 9.0 0.0
December 43.1 28.0 35.6 73 29/1984 -1 30/1933 42.5 84 24.7 89 0.0 4.2 21.6 0.1
Annual 62.9 45.0 54.0 103 19360710 -15 19340209 57.3 98 51.3 40 15.4 17.6 96.4 0.5
Winter 41.4 26.0 33.7 74 19500126 -15 19340209 40.3 98 27.6 36 0.0 16.5 68.2 0.5
Spring 61.8 42.4 52.1 94 19410522 5 19430304 56.9 110 47.9 40 0.7 0.8 18.0 0.0
Summer 83.0 64.3 73.7 103 19360710 38 19350728 77.4 110 70.2 46 13.7 0.0 0.0 0.0
Fall 65.5 47.3 56.4 97 19320901 12 19381126 59.9 41 51.2 76 1.0 0.2 10.1 0.0
Table updated on May 22,
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov.


Southeast Regional Climate Center, SERCC staff