WILMINGTON PORTER RSVR, DELAWARE

Period of Record General Climate Summary - Precipitation

From Year=1931 To Year=2012
Station:(079605) WILMINGTON PORTER RSVR
Averages Daily Extremes
Precipitation Total Snowfall
Mean High Year Low Year 1 Day Max. >=
0.01 in.
>=
0.10 in.
>=
0.50 in.
>=
1.00 in.
Mean High Year
in. in. - in. - in. dd/yyyy
or
yyyymmdd
# Days # Days # Days # Days in. in. -
January 3.50 8.45 79 0.46 55 2.77 23/1998 10 7 3 1 5.8 27.6 111
February 2.92 7.02 79 0.44 102 2.20 13/1966 9 6 2 1 5.5 28.0 79
March 4.17 9.63 100 0.60 106 3.77 21/2000 10 7 3 1 2.7 21.0 58
April 3.93 8.10 83 0.55 85 2.98 30/1947 10 7 3 1 0.1 2.5 40
May 4.04 8.23 78 0.35 39 3.62 31/1993 11 7 3 1 0.0 0.0 43
June 4.06 12.23 106 0.29 49 4.77 27/1938 10 7 3 1 0.0 0.0 43
July 4.63 14.86 89 0.65 55 7.03 09/1952 9 6 3 1 0.0 0.0 43
August 4.50 14.75 111 0.41 68 6.42 01/1945 9 6 3 1 0.0 0.0 43
September 4.19 14.03 99 0.45 43 9.30 16/1999 8 6 3 1 0.0 0.0 43
October 3.45 9.14 95 0.13 63 4.18 10/1971 8 5 2 1 0.0 2.0 40
November 3.48 9.29 77 0.34 76 3.33 17/1935 9 6 3 1 0.7 10.5 53
December 3.72 9.99 83 0.16 55 2.80 12/1983 9 6 3 1 2.8 18.4 66
Annual 46.61 68.89 96 33.60 68 9.30 19990916 111 77 32 13 17.6 47.9 103
Winter 10.14 21.16 79 4.31 77 2.80 19831212 28 19 7 3 14.0 43.5 61
Spring 12.14 23.58 83 6.31 41 3.77 20000321 32 22 9 3 2.8 21.0 58
Summer 13.19 25.41 45 4.24 66 7.03 19520709 27 19 8 4 0.0 0.0 43
Fall 11.13 22.98 71 4.45 31 9.30 19990916 25 17 8 3 0.7 10.5 53
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 Webmaster