VIENNA, MARYLAND

Period of Record General Climate Summary - Temperature

From Year=1949 To Year=2010
Station:(189140) VIENNA
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 45.5 27.4 36.5 80 30/2002 -6 28/1987 48.2 50 26.6 77 0.0 3.0 21.6 0.1
February 48.0 28.6 38.3 78 17/1976 -6 06/1996 46.1 76 26.6 79 0.0 1.6 18.7 0.0
March 56.9 35.4 46.1 87 14/1990 7 04/2009 51.8 100 34.8 60 0.0 0.1 12.0 0.0
April 67.6 44.2 55.8 95 17/1976 23 05/1965 61.1 85 51.2 65 0.4 0.0 2.1 0.0
May 76.6 53.7 65.1 99 31/1991 32 11/1966 72.8 104 59.3 67 1.5 0.0 0.0 0.0
June 84.9 62.7 73.8 102 29/1959 42 03/1996 77.6 108 68.3 74 7.6 0.0 0.0 0.0
July 88.7 67.7 78.2 103 21/1987 48 24/1985 81.9 93 73.9 62 13.7 0.0 0.0 0.0
August 87.1 66.0 76.5 101 18/2002 43 30/1986 80.3 102 73.4 64 10.2 0.0 0.0 0.0
September 81.0 59.0 70.0 98 10/1964 32 21/1956 74.4 61 65.6 63 2.6 0.0 0.0 0.0
October 70.5 48.2 59.3 93 09/2007 24 30/1990 66.7 107 52.0 74 0.2 0.0 1.1 0.0
November 59.8 39.0 49.4 83 02/2003 14 24/1989 57.3 85 42.9 76 0.0 0.0 8.0 0.0
December 49.4 30.7 40.1 78 16/1971 -3 16/1958 48.1 71 26.2 89 0.0 1.3 18.2 0.0
Annual 68.0 46.9 57.4 103 19870721 -6 19870128 60.2 98 55.3 58 36.2 6.1 81.8 0.2
Winter 47.7 28.9 38.3 80 20020130 -6 19870128 43.6 102 32.8 63 0.0 5.9 58.6 0.2
Spring 67.0 44.4 55.7 99 19910531 7 20090304 59.6 104 52.5 50 1.9 0.1 14.1 0.0
Summer 86.9 65.4 76.2 103 19870721 42 19960603 79.1 102 72.7 74 31.5 0.0 0.0 0.0
Fall 70.4 48.7 59.6 98 19640910 14 19891124 64.2 85 56.7 88 2.8 0.0 9.2 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