IDAHO FALLS 2 ESE, IDAHO

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 29.7 36.6 47.6 58.7 67.9 77.8 86.0 85.8 75.1 61.4 43.0 31.3 58.4
Highest Mean Max. Temperature (F) 37.0 46.6 56.9 67.9 76.8 85.7 90.5 90.1 83.5 72.2 53.9 37.7 90.5
Year Highest Occurred 1998 1992 1992 1987 1992 1988 1989 1994 1990 1988 1999 1995 1989
Lowest Mean Max. Temperature (F) 18.3 25.1 37.2 47.3 62.1 69.8 75.5 79.6 66.7 54.0 34.0 21.4 18.3
Year Lowest Occurred 1979 1985 1985 1975 1975 1998 1993 1993 1985 1984 1985 1985 1979
Mean Temperature (F) 21.1 26.7 36.2 45.0 53.3 61.9 68.7 67.9 58.2 46.8 33.1 22.4 45.1
Highest Mean Temperature (F) 30.0 35.5 43.5 51.2 60.1 68.3 73.0 71.8 64.8 54.2 40.6 28.8 73.0
Year Highest Occurred 1998 1992 1992 1987 1992 1988 1998 2000 1990 1988 1999 1995 1998
Lowest Mean Temperature (F) 9.3 14.2 24.9 36.4 48.3 57.6 61.0 62.9 51.9 42.0 25.8 11.8 9.3
Year Lowest Occurred 1979 1985 1985 1975 1975 1998 1993 1993 1971 1984 1985 1985 1979
Mean Min. Temperature (F) 12.5 16.8 24.8 31.3 38.7 46.0 51.4 49.9 41.3 32.2 23.2 13.4 31.8
Highest Mean Min. Temperature (F) 22.9 25.7 30.2 36.0 44.0 50.9 55.7 55.0 48.4 37.7 28.6 22.1 55.7
Year Highest Occurred 1998 2000 1992 2000 1994 1988 1998 2000 1998 1992 1998 1996 1998
Lowest Mean Min. Temperature (F) 0.2 3.3 12.7 25.4 34.6 42.6 46.4 45.6 35.0 28.8 15.6 2.3 0.2
Year Lowest Occurred 1979 1985 1985 1982 1982 1975 1993 1974 1971 1976 1993 1985 1979
Mean Precipitation (in.) 1.25 1.01 1.33 1.27 2.01 1.18 0.74 0.93 0.94 1.12 1.17 1.26 14.21
Highest Precipitation (in.) 2.38 3.13 4.30 2.82 4.56 3.16 2.13 2.66 2.81 2.49 3.20 3.18 4.56
Year Highest Occurred 1986 1986 1995 1978 1993 1995 1983 1972 1998 1974 1988 1983 1993
Lowest Precipitation (in.) 0.22 0.00 0.04 0.20 0.33 0.15 0.00 0.07 0.00 0.00 0.00 0.00 0.00
Year Lowest Occurred 1992 1991 1994 1992 1972 1996 1988 1992 1987 1988 1976 1989 1991
Heating Degree Days (F) 1362. 1072. 894. 600. 366. 146. 34. 51. 235. 564. 957. 1323. 7604.
Cooling Degree Days (F) 0. 0. 0. 0. 4. 53. 148. 138. 30. 0. 0. 0. 373.

Western Regional Climate Center, wrcc@dri.edu