JEROME, IDAHO

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 35.6 42.3 52.1 61.6 70.8 81.0 90.2 89.5 78.3 65.2 47.5 36.9 62.6
Highest Mean Max. Temperature (F) 43.7 54.9 63.1 72.0 79.9 88.4 96.1 94.1 86.3 74.2 57.9 44.7 96.1
Year Highest Occurred 1998 1991 1992 1987 1992 1974 1985 1981 1990 1988 1999 1976 1985
Lowest Mean Max. Temperature (F) 24.6 30.4 41.4 50.7 64.5 74.4 79.1 81.7 68.9 58.5 37.7 24.5 24.5
Year Lowest Occurred 1979 1985 1985 1975 1977 1998 1993 1976 1985 1981 1985 1985 1985
Mean Temperature (F) 27.0 32.2 39.9 47.3 56.0 64.8 72.6 71.5 61.5 50.2 36.6 27.8 49.0
Highest Mean Temperature (F) 35.2 41.1 47.9 53.4 62.1 70.4 77.9 75.3 68.6 57.7 43.6 34.5 77.9
Year Highest Occurred 1998 1992 1992 1990 1992 1974 1985 2000 1990 1988 1999 1980 1985
Lowest Mean Temperature (F) 16.0 20.1 30.8 39.0 51.4 60.0 63.5 65.8 54.9 45.5 27.8 14.9 14.9
Year Lowest Occurred 1979 1985 1985 1975 1975 1984 1993 1976 1985 1984 1985 1985 1985
Mean Min. Temperature (F) 18.3 22.0 27.7 33.0 41.1 48.6 54.9 53.5 44.6 35.1 25.7 18.6 35.3
Highest Mean Min. Temperature (F) 26.7 28.8 33.3 38.5 45.3 53.4 59.7 57.1 51.4 41.1 32.0 26.2 59.7
Year Highest Occurred 1998 1986 1986 1990 1987 1977 1985 1983 1998 1988 1981 1977 1985
Lowest Mean Min. Temperature (F) 7.3 9.8 19.1 27.3 37.5 44.9 47.8 48.6 39.2 32.2 17.1 5.3 5.3
Year Lowest Occurred 1979 1985 1976 1975 1975 1984 1993 1975 1971 1971 1993 1985 1985
Mean Precipitation (in.) 1.40 1.07 1.28 0.86 1.14 0.76 0.22 0.27 0.49 0.77 1.29 1.23 10.78
Highest Precipitation (in.) 3.33 4.60 2.88 2.02 4.86 2.73 0.90 1.18 2.14 2.31 3.27 4.77 4.86
Year Highest Occurred 1980 1986 1989 1981 1998 1984 1982 1979 1978 1975 1988 1996 1998
Lowest Precipitation (in.) 0.07 0.05 0.03 0.01 0.00 0.02 0.00 0.00 0.00 0.00 0.04 0.00 0.00
Year Lowest Occurred 1992 1988 1992 1977 1992 2000 2000 1996 1993 1988 1976 1976 1992
Heating Degree Days (F) 1181. 919. 778. 531. 295. 104. 19. 23. 165. 463. 851. 1154. 6483.
Cooling Degree Days (F) 0. 0. 0. 0. 15. 98. 253. 224. 59. 2. 0. 0. 651.

Western Regional Climate Center, wrcc@dri.edu