TURNER 11 N, MONTANA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 23.1 30.0 41.9 56.9 67.4 75.8 81.8 82.6 70.7 58.0 37.8 26.4 54.4
Highest Mean Max. Temperature (F) 40.8 43.2 55.2 65.8 76.2 89.3 87.9 91.3 81.0 64.1 52.4 41.1 91.3
Year Highest Occurred 1992 1991 1992 1987 1988 1988 1985 1971 1990 1974 1999 1999 1971
Lowest Mean Max. Temperature (F) 7.7 14.0 30.2 42.7 58.6 70.6 71.1 74.2 57.7 50.8 17.5 5.0 5.0
Year Lowest Occurred 1979 1989 1996 1975 1996 1998 1993 1974 1985 1984 1985 1983 1983
Mean Temperature (F) 11.9 18.8 30.2 42.8 53.3 61.6 66.4 66.2 55.5 44.2 27.0 15.9 41.2
Highest Mean Temperature (F) 28.5 32.7 40.4 49.6 59.3 73.2 70.5 72.6 62.6 47.4 40.0 30.3 73.2
Year Highest Occurred 1992 1991 1986 1987 1988 1988 1998 1971 1998 1979 1999 1999 1988
Lowest Mean Temperature (F) -5.0 2.0 20.8 33.0 47.4 57.6 59.5 60.1 47.5 38.7 8.4 -5.0 -5.0
Year Lowest Occurred 1982 1979 1996 1975 1974 1981 1993 1977 1985 1984 1985 1983 1982
Mean Min. Temperature (F) 0.7 7.5 18.4 28.6 39.1 47.3 50.9 49.8 40.2 30.4 16.1 5.4 27.9
Highest Mean Min. Temperature (F) 16.4 22.9 28.4 33.5 43.3 57.0 55.6 55.0 46.2 33.8 27.5 19.5 57.0
Year Highest Occurred 1986 1998 1986 1987 1987 1988 1998 1983 1998 1986 1999 1999 1988
Lowest Mean Min. Temperature (F) -18.0 -10.7 11.3 23.2 35.3 42.5 46.6 44.8 36.1 25.0 -0.6 -15.0 -18.0
Year Lowest Occurred 1982 1979 1975 1975 1983 1985 1972 1977 1972 1991 1985 1983 1982
Mean Precipitation (in.) 0.29 0.18 0.39 0.54 1.76 2.61 1.85 0.96 1.28 0.44 0.59 0.36 11.25
Highest Precipitation (in.) 1.02 0.80 0.90 1.50 4.53 6.15 4.42 4.07 6.03 1.56 3.00 2.15 6.15
Year Highest Occurred 1996 1986 1997 1995 1986 1991 1993 1989 1986 1995 1990 1996 1991
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.51 1.03 0.36 0.09 0.11 0.00 0.04 0.00 0.00
Year Lowest Occurred 1992 1997 1994 1988 1995 1977 1984 1988 1994 1990 1999 1997 1992
Heating Degree Days (F) 1646. 1294. 1080. 667. 372. 155. 69. 105. 316. 645. 1141. 1523. 9013.
Cooling Degree Days (F) 0. 0. 0. 0. 7. 51. 112. 142. 29. 0. 0. 0. 341.

Western Regional Climate Center, wrcc@dri.edu