VIENNA, MARYLAND

Period of Record General Climate Summary - Precipitation

From Year=1949 To Year=2010
Station:(189140) VIENNA
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 3.29 7.71 98 0.42 81 3.70 28/1998 9 6 2 1 3.0 22.5 66
February 3.01 7.14 79 0.30 102 2.20 19/1979 8 6 2 1 2.0 27.1 79
March 3.92 9.74 94 0.16 106 3.33 28/1994 10 7 3 1 0.9 12.0 60
April 3.47 8.56 104 0.78 85 2.40 16/2007 9 7 3 1 0.0 1.3 57
May 3.30 8.90 84 0.30 64 5.52 30/1984 9 6 2 1 0.0 0.0 50
June 3.89 12.97 106 0.45 88 4.21 02/2006 8 6 3 1 0.0 0.0 50
July 3.85 9.57 69 0.38 83 5.50 13/1996 9 6 2 1 0.0 0.0 49
August 4.62 14.28 67 0.16 102 5.08 08/1959 8 6 3 1 0.0 0.0 49
September 3.69 10.83 77 0.52 78 6.50 10/1977 7 5 2 1 0.0 0.0 49
October 3.15 7.58 71 0.08 100 3.10 26/1971 8 5 2 1 0.0 1.0 79
November 3.21 7.01 63 0.24 101 2.90 13/1975 8 5 3 1 0.2 5.0 53
December 3.42 8.52 69 0.34 89 3.34 25/1986 9 6 3 1 1.2 13.5 58
Annual 42.81 59.59 79 34.23 86 6.50 19770910 102 72 30 11 7.4 40.0 67
Winter 9.71 18.31 79 5.54 55 3.70 19980128 26 19 7 2 6.2 40.0 67
Spring 10.69 20.29 84 4.35 86 5.52 19840530 28 20 8 3 1.0 12.0 60
Summer 12.36 25.37 67 3.10 102 5.50 19960713 25 18 8 4 0.0 0.0 50
Fall 10.05 22.40 106 2.60 101 6.50 19770910 23 15 7 3 0.2 5.0 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