SILVER LAKE RANGER STN, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 40.2 46.2 54.8 65.2 74.3 86.2 91.0 88.7 80.2 68.8 51.2 42.0 65.7
Highest Mean Max. Temperature (F) 56.1 58.5 64.0 73.0 81.2 91.8 97.2 95.4 86.1 73.4 64.5 51.1 97.2
Year Highest Occurred 1986 1999 1986 1981 1974 1990 1980 1983 1998 1979 1999 1980 1980
Lowest Mean Max. Temperature (F) 26.7 30.7 48.5 55.8 63.3 78.9 87.1 81.4 72.2 60.1 40.6 25.9 25.9
Year Lowest Occurred 1979 1978 1973 1984 1995 1992 1992 1992 1973 1984 1972 1983 1983
Mean Temperature (F) 27.3 32.3 40.2 50.3 60.3 71.8 76.7 74.7 65.6 53.1 37.7 29.5 51.6
Highest Mean Temperature (F) 38.8 41.3 46.9 57.0 64.7 76.1 81.2 80.4 71.1 55.7 46.9 36.7 81.2
Year Highest Occurred 1986 1999 1986 1981 1998 1990 1980 1983 1998 1974 1999 1980 1980
Lowest Mean Temperature (F) 14.9 19.9 35.2 44.7 53.2 67.2 73.3 69.1 60.8 47.0 31.4 16.6 14.9
Year Lowest Occurred 1979 1978 1980 1983 1995 1982 1992 1992 1973 1976 1972 1983 1979
Mean Min. Temperature (F) 14.4 18.4 25.6 35.4 46.3 57.4 62.4 60.7 50.9 37.3 24.2 17.0 37.5
Highest Mean Min. Temperature (F) 21.5 26.4 29.8 41.1 51.8 60.8 65.3 65.5 56.0 40.6 31.9 22.3 65.5
Year Highest Occurred 1986 1998 1986 1981 1977 1994 1998 1983 1998 1974 1998 1994 1983
Lowest Mean Min. Temperature (F) 3.2 9.2 18.2 30.5 42.1 53.4 59.1 56.8 45.7 31.1 19.8 7.2 3.2
Year Lowest Occurred 1979 1978 1996 1973 1979 1998 1994 1992 1974 1976 1993 1983 1979
Mean Precipitation (in.) 0.48 0.56 1.47 1.60 3.38 3.04 3.32 2.43 1.32 1.14 0.94 0.43 20.11
Highest Precipitation (in.) 1.28 1.66 4.97 3.51 6.83 9.06 6.96 9.41 6.04 4.26 2.79 1.86 9.41
Year Highest Occurred 1979 1993 1981 1994 1977 1980 1998 1999 1973 2000 1972 1982 1999
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.33 0.09 0.21 0.15 0.00 0.00 0.00 0.00 0.00
Year Lowest Occurred 1998 1996 1997 1992 2000 1976 1974 1995 1978 1988 1989 1995 1998
Heating Degree Days (F) 1169. 916. 769. 445. 182. 18. 0. 7. 83. 372. 820. 1101. 5882.
Cooling Degree Days (F) 0. 0. 0. 4. 37. 221. 364. 309. 98. 1. 0. 0. 1034.

Western Regional Climate Center, wrcc@dri.edu