KALISPELL WSO AIRPORT, MONTANA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 28.9 35.2 44.9 56.0 64.7 71.9 80.2 80.5 69.0 55.3 38.6 30.1 54.6
Highest Mean Max. Temperature (F) 39.3 42.4 55.0 62.4 71.6 78.3 88.5 88.7 79.0 62.2 45.6 38.9 88.7
Year Highest Occurred 1994 1992 1992 1977 1993 1987 1985 1971 1990 1988 1999 1979 1971
Lowest Mean Max. Temperature (F) 10.0 23.6 36.5 49.0 56.5 64.8 67.7 74.3 58.4 49.8 23.7 16.9 10.0
Year Lowest Occurred 1979 1989 1975 1997 1996 1981 1993 1980 1985 1995 1985 1983 1979
Mean Temperature (F) 21.4 26.8 34.9 43.4 51.3 57.7 63.5 63.2 53.1 41.9 30.9 23.1 42.6
Highest Mean Temperature (F) 32.0 33.7 40.3 47.9 57.0 63.4 68.8 67.7 59.3 47.6 37.5 32.5 68.8
Year Highest Occurred 1994 1992 1992 1987 1993 1986 1975 1971 1998 1988 1999 1979 1975
Lowest Mean Temperature (F) 0.2 13.2 28.0 37.9 47.0 52.9 56.3 58.3 47.0 38.0 16.8 8.2 0.2
Year Lowest Occurred 1979 1989 1985 1982 1996 1981 1993 1980 1985 1984 1985 1983 1979
Mean Min. Temperature (F) 13.8 18.4 24.8 30.8 37.9 43.5 46.7 45.8 37.1 28.4 23.2 16.1 30.5
Highest Mean Min. Temperature (F) 26.6 25.6 29.5 34.4 42.5 49.0 52.4 50.3 41.5 33.4 29.8 26.0 52.4
Year Highest Occurred 1981 1999 1986 1974 1993 1986 1998 1999 1997 1975 1998 1979 1998
Lowest Mean Min. Temperature (F) -9.7 2.8 16.5 24.3 33.3 40.2 43.7 42.2 31.9 23.0 10.0 -0.5 -9.7
Year Lowest Occurred 1979 1989 1985 1982 1982 1971 1971 1985 1971 1991 1985 1983 1979
Mean Precipitation (in.) 1.47 1.15 1.11 1.22 2.04 2.30 1.41 1.25 1.20 0.96 1.45 1.65 17.21
Highest Precipitation (in.) 2.66 1.99 2.96 2.37 4.75 5.30 6.02 3.78 3.97 2.51 3.26 4.38 6.02
Year Highest Occurred 1982 1981 1987 1978 1990 1995 1993 1976 1985 1995 1989 1990 1993
Lowest Precipitation (in.) 0.20 0.28 0.08 0.43 0.78 0.43 0.05 0.05 0.01 0.05 0.37 0.52 0.01
Year Lowest Occurred 1985 1998 1994 1977 1983 1977 1973 1994 1990 1987 2000 1986 1990
Heating Degree Days (F) 1359. 1079. 933. 640. 412. 220. 88. 102. 344. 705. 1014. 1297. 8193.
Cooling Degree Days (F) 0. 0. 0. 0. 3. 17. 57. 62. 3. 0. 0. 0. 142.

Western Regional Climate Center, wrcc@dri.edu