CALISTOGA, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 59.0 62.9 66.5 71.5 78.7 86.5 91.7 91.0 87.3 79.5 66.0 59.2 75.0
Highest Mean Max. Temperature (F) 64.1 71.5 73.7 80.8 85.4 93.6 98.2 95.9 93.4 85.6 74.0 65.5 98.2
Year Highest Occurred 1994 1988 1988 1987 1987 1981 1988 1992 1984 1978 1995 1976 1988
Lowest Mean Max. Temperature (F) 54.7 56.4 59.8 63.9 67.9 78.8 86.4 84.8 79.2 72.9 59.6 52.6 52.6
Year Lowest Occurred 1973 1998 1983 1983 1998 1982 1987 1976 1986 1984 1984 1972 1972
Mean Temperature (F) 47.2 50.6 53.3 56.6 62.5 68.5 72.2 71.8 69.0 62.7 52.7 47.2 59.5
Highest Mean Temperature (F) 51.3 54.8 58.5 62.2 67.5 72.8 76.1 75.0 72.1 66.3 58.2 51.4 76.1
Year Highest Occurred 1986 1995 1986 1985 1987 1981 1988 1998 1979 1987 1995 1977 1988
Lowest Mean Temperature (F) 43.2 47.0 48.4 50.2 56.6 63.9 68.8 68.3 64.5 59.2 47.4 42.0 42.0
Year Lowest Occurred 1972 1989 1982 1975 1998 1982 1987 1976 1986 1981 1994 1990 1990
Mean Min. Temperature (F) 35.4 38.2 40.0 41.6 46.3 50.4 52.7 52.5 50.7 45.9 39.4 35.2 44.0
Highest Mean Min. Temperature (F) 44.1 43.3 44.7 46.2 51.0 53.2 56.6 55.2 54.3 50.8 45.0 44.3 56.6
Year Highest Occurred 1995 1986 1978 1989 1993 2000 1990 1990 1983 1979 1988 1983 1990
Lowest Mean Min. Temperature (F) 29.7 33.7 35.1 36.4 42.7 47.5 50.1 49.7 48.3 41.4 34.4 25.9 25.9
Year Lowest Occurred 1972 1990 1977 1975 1977 1983 1977 1973 1993 1971 1994 1990 1990
Mean Precipitation (in.) 7.74 7.85 5.98 2.22 0.95 0.22 0.10 0.11 0.46 1.96 5.13 5.79 38.51
Highest Precipitation (in.) 30.23 32.06 19.16 7.39 4.89 1.19 2.01 0.97 2.29 5.29 17.12 17.14 32.06
Year Highest Occurred 1995 1986 1991 1982 1990 1992 1974 1976 1989 1989 1973 1996 1986
Lowest Precipitation (in.) 0.41 0.21 0.27 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00
Year Lowest Occurred 1976 1997 1988 1973 1992 1999 2000 2000 1995 1978 1986 1989 1992
Heating Degree Days (F) 551. 406. 369. 270. 129. 26. 2. 1. 18. 116. 372. 551. 2811.
Cooling Degree Days (F) 0. 0. 4. 15. 51. 130. 224. 210. 138. 45. 2. 0. 819.

Western Regional Climate Center, wrcc@dri.edu