VIENNA TYSONS CORNER, VIRGINIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F)
Highest Mean Max. Temperature (F)
Year Highest Occurred
Lowest Mean Max. Temperature (F)
Year Lowest Occurred
Mean Temperature (F)
Highest Mean Temperature (F)
Year Highest Occurred
Lowest Mean Temperature (F)
Year Lowest Occurred
Mean Min. Temperature (F)
Highest Mean Min. Temperature (F)
Year Highest Occurred
Lowest Mean Min. Temperature (F)
Year Lowest Occurred
Mean Precipitation (in.) 3.41 2.85 3.97 3.37 4.60 3.78 4.33 4.06 4.49 3.58 3.49 3.19 45.12
Highest Precipitation (in.) 7.40 7.16 9.05 7.56 10.48 15.14 7.27 8.25 11.15 7.94 6.95 6.47 15.14
Year Highest Occurred 1979 1998 1993 1983 1989 1972 1975 1990 1999 1976 1972 1973 1972
Lowest Precipitation (in.) 0.44 0.38 0.78 0.42 1.21 1.47 1.19 0.38 0.96 0.04 0.43 0.69 0.04
Year Lowest Occurred 1981 1978 1986 1985 1986 1986 1999 1989 1986 2000 1981 1980 2000
Heating Degree Days (F)
Cooling Degree Days (F)

Southeast Regional Climate Center, sercc@climate.ncsu.edu