CALDWELL, IDAHO

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 37.1 46.1 57.4 66.3 75.1 84.2 92.6 91.7 80.8 67.0 49.3 37.9 65.5
Highest Mean Max. Temperature (F) 44.1 55.1 65.8 75.7 83.5 92.5 97.1 99.9 89.4 77.0 57.0 46.6 99.9
Year Highest Occurred 1995 1995 1992 1987 1992 1986 1975 1971 1990 1988 1999 1973 1971
Lowest Mean Max. Temperature (F) 23.7 30.6 49.7 58.4 69.4 77.8 82.2 85.5 69.8 60.5 36.7 19.7 19.7
Year Lowest Occurred 1979 1989 1985 1975 1977 1993 1993 1976 1985 1984 1985 1985 1985
Mean Temperature (F) 29.1 36.2 45.0 52.4 60.7 68.5 75.4 73.8 63.3 51.8 38.9 29.6 52.1
Highest Mean Temperature (F) 36.3 42.4 49.8 59.1 66.4 75.4 80.1 79.2 70.3 59.2 44.7 37.9 80.1
Year Highest Occurred 1978 1995 1992 1987 1992 1986 1975 1971 1990 1988 1999 1973 1975
Lowest Mean Temperature (F) 14.7 21.0 38.3 46.7 56.6 63.8 66.7 68.3 55.1 47.5 28.5 11.9 11.9
Year Lowest Occurred 1979 1989 1985 1975 1977 1993 1993 1985 1985 1985 1985 1985 1985
Mean Min. Temperature (F) 21.1 26.2 32.6 38.5 46.2 52.8 58.1 55.8 45.8 36.6 28.4 21.3 38.6
Highest Mean Min. Temperature (F) 29.5 32.3 36.4 43.4 51.5 58.3 63.5 60.8 51.6 41.4 34.7 29.7 63.5
Year Highest Occurred 1998 1983 1978 1990 1993 1986 1985 1984 1998 1988 1995 1977 1985
Lowest Mean Min. Temperature (F) 5.6 11.4 26.6 33.6 43.1 49.1 51.2 50.3 40.4 33.0 20.2 4.1 4.1
Year Lowest Occurred 1979 1989 1976 1982 1991 1981 1993 1985 1985 1985 1993 1985 1985
Mean Precipitation (in.) 1.55 1.11 1.29 1.13 1.01 0.67 0.30 0.35 0.59 0.73 1.28 1.39 11.40
Highest Precipitation (in.) 4.96 3.39 3.44 3.26 2.76 1.95 1.11 2.30 2.53 1.58 2.64 4.00 4.96
Year Highest Occurred 1997 1986 1993 1978 1998 1993 1980 1976 1986 1982 1988 1983 1997
Lowest Precipitation (in.) 0.26 0.00 0.26 0.09 0.09 0.07 0.00 0.00 0.00 0.00 0.32 0.07 0.00
Year Lowest Occurred 1985 1997 1994 1987 1989 1996 1991 1996 1999 1988 1976 1989 1997
Heating Degree Days (F) 1113. 807. 621. 385. 176. 55. 10. 14. 134. 411. 784. 1096. 5606.
Cooling Degree Days (F) 0. 0. 0. 7. 41. 160. 332. 286. 83. 2. 0. 0. 911.

Western Regional Climate Center, wrcc@dri.edu