UNIONVILLE, MARYLAND

Period of Record General Climate Summary - Temperature

From Year=1940 To Year=1996
Station:(189030) UNIONVILLE
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 39.9 20.6 30.4 77 26/1950 -22 21/1994 42.1 50 21.7 94 0.0 6.7 27.1 1.7
February 43.1 22.0 32.5 79 24/1985 -20 13/1979 40.0 76 20.4 79 0.0 4.0 23.8 0.7
March 53.1 29.3 41.2 86 29/1945 -9 11/1960 50.8 45 29.9 60 0.0 0.7 20.1 0.1
April 64.8 37.9 51.4 93 18/1976 15 10/1985 55.8 94 46.9 43 0.3 0.0 9.6 0.0
May 74.3 48.0 61.1 96 20/1996 21 10/1947 67.7 91 54.9 67 0.8 0.0 1.6 0.0
June 82.4 57.1 69.8 100 26/1954 33 06/1945 76.0 43 65.9 55 4.7 0.0 0.0 0.0
July 86.2 61.8 74.0 103 17/1988 39 02/1988 78.2 55 69.9 47 8.8 0.0 0.0 0.0
August 84.2 59.8 72.0 103 31/1953 35 29/1982 77.0 55 67.6 46 5.8 0.0 0.0 0.0
September 77.7 52.5 65.1 103 02/1953 26 28/1947 70.1 61 61.0 75 1.9 0.0 0.6 0.0
October 67.1 41.1 54.1 99 05/1941 14 21/1952 59.9 71 47.7 88 0.1 0.0 6.8 0.0
November 55.0 32.1 43.5 83 01/1950 5 24/1989 48.8 85 37.3 76 0.0 0.2 16.6 0.0
December 43.3 23.7 33.5 78 29/1984 -19 21/1942 42.8 84 21.5 89 0.0 4.0 25.1 0.7
Annual 64.3 40.5 52.4 103 19530831 -22 19940121 54.9 90 50.8 62 22.5 15.6 131.3 3.1
Winter 42.1 22.1 32.1 79 19850224 -22 19940121 37.6 50 26.1 63 0.0 14.7 76.0 3.1
Spring 64.1 38.4 51.2 96 19960520 -9 19600311 55.1 91 47.9 60 1.1 0.7 31.4 0.1
Summer 84.3 59.6 71.9 103 19530831 33 19450606 74.9 43 69.6 46 19.3 0.0 0.0 0.0
Fall 66.6 41.9 54.2 103 19530902 5 19891124 57.8 41 49.9 76 2.1 0.2 23.9 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