GRACE, IDAHO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 30.2 35.5 43.3 55.4 65.9 75.1 83.7 82.5 73.2 61.2 43.3 32.0 56.8
Highest Mean Max. Temperature (F) 37.2 45.1 56.0 67.6 73.3 84.2 88.9 86.8 81.3 71.4 49.0 39.7 60.7
Year Highest Occurred 1990 1963 1986 1987 1969 1988 1989 1981 1990 1988 1976 1976 1987
Lowest Mean Max. Temperature (F) 20.2 28.2 34.6 44.7 60.8 68.1 79.6 74.4 65.6 51.5 37.0 24.8 53.3
Year Lowest Occurred 1979 1964 1964 1975 1975 1964 1986 1968 1965 1969 1985 1978 1984
Mean Temperature (F) 20.3 24.5 31.8 42.0 50.9 58.8 65.9 64.3 55.6 45.4 32.6 22.2 42.9
Highest Mean Temperature (F) 27.4 34.9 42.3 48.8 55.6 65.7 69.2 68.3 62.6 52.6 36.7 29.1 45.2
Year Highest Occurred 1990 1963 1986 1987 1969 1988 1989 1961 1990 1988 1965 1977 1981
Lowest Mean Temperature (F) 8.9 15.0 22.4 34.5 46.2 55.0 62.9 59.7 50.1 39.1 26.2 13.6 40.1
Year Lowest Occurred 1979 1964 1964 1975 1975 1964 1986 1968 1965 1969 1979 1990 1985
Mean Min. Temperature (F) 10.4 13.3 20.2 28.5 35.8 42.5 48.0 46.1 38.0 29.6 21.8 12.4 28.9
Highest Mean Min. Temperature (F) 19.2 24.7 28.6 33.0 39.3 47.3 51.1 51.4 43.8 36.4 26.1 22.5 31.4
Year Highest Occurred 1983 1963 1986 1989 1987 1977 1975 1983 1990 1963 1970 1977 1981
Lowest Mean Min. Temperature (F) -2.5 1.7 10.2 24.3 31.6 40.0 45.4 42.2 34.6 25.7 13.9 0.2 25.3
Year Lowest Occurred 1979 1964 1969 1975 1975 1978 1978 1976 1965 1970 1979 1990 1985
Mean Precipitation (in.) 1.24 1.17 1.29 1.40 1.65 1.73 1.02 1.16 1.39 1.16 1.28 1.25 15.74
Highest Precipitation (in.) 3.48 4.41 3.00 3.68 5.66 5.11 2.81 3.36 4.19 3.04 3.41 3.76 26.60
Year Highest Occurred 1980 1986 1982 1986 1980 1964 1984 1977 1973 1981 1983 1964 1983
Lowest Precipitation (in.) 0.01 0.26 0.27 0.15 0.12 0.00 0.00 0.12 0.00 0.00 0.00 0.06 9.30
Year Lowest Occurred 1961 1970 1965 1977 1969 1978 1963 1975 1974 1988 1976 1989 1979
Heating Degree Days (F) 1386. 1134. 1029. 690. 437. 203. 39. 88. 292. 608. 972. 1327. 8205.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 17. 67. 67. 10. 0. 0. 0. 161.

Western Regional Climate Center, wrcc@dri.edu