SAN JACINTO RS, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 66.4 68.5 70.0 77.0 82.5 91.8 97.8 98.4 92.9 84.1 73.5 67.8 80.9
Highest Mean Max. Temperature (F) 75.1 79.0 79.1 87.4 93.0 98.7 101.4 102.2 98.0 91.9 82.1 76.0 102.2
Year Highest Occurred 1986 1991 1997 1989 1984 1981 1981 1986 1981 1999 1995 1980 1986
Lowest Mean Max. Temperature (F) 56.6 60.2 62.4 67.9 71.6 81.6 90.5 94.2 85.2 76.7 65.2 60.3 56.6
Year Lowest Occurred 1979 1998 1973 1999 1998 1982 1993 1979 1986 2000 1994 1987 1979
Mean Temperature (F) 52.4 54.5 56.3 61.5 67.1 74.0 79.9 80.4 75.6 67.3 57.7 52.6 64.9
Highest Mean Temperature (F) 58.2 60.4 62.0 68.1 73.4 80.2 83.7 83.8 80.7 71.7 64.0 58.6 83.8
Year Highest Occurred 1986 1991 1989 1987 1984 1981 1984 1986 1984 1991 1995 1980 1986
Lowest Mean Temperature (F) 47.0 50.6 51.3 54.7 60.3 67.5 73.3 76.8 69.8 63.4 51.4 47.5 47.0
Year Lowest Occurred 1979 1998 1973 1975 1998 1998 1993 1976 1986 1981 1994 1987 1979
Mean Min. Temperature (F) 38.4 40.4 42.5 46.0 51.7 56.1 61.9 62.3 58.3 50.5 41.9 37.3 48.9
Highest Mean Min. Temperature (F) 45.0 47.7 46.9 50.7 55.9 61.8 67.7 67.1 64.6 56.2 45.9 43.3 67.7
Year Highest Occurred 1980 1980 1978 1992 1987 1981 1984 1984 1984 1987 1995 1977 1984
Lowest Mean Min. Temperature (F) 34.1 35.9 36.1 41.4 48.1 51.5 56.1 57.4 54.5 46.1 37.6 32.5 32.5
Year Lowest Occurred 1972 1974 1977 1975 1991 1978 1993 1985 1986 1971 2000 1990 1990
Mean Precipitation (in.) 2.68 2.80 2.34 0.64 0.44 0.09 0.14 0.25 0.36 0.49 0.93 1.39 12.55
Highest Precipitation (in.) 14.19 10.83 8.30 2.69 3.49 0.85 1.49 1.49 2.27 3.15 3.50 4.37 14.19
Year Highest Occurred 1993 1998 1991 1983 1998 1993 1984 1982 1997 1987 1985 1984 1993
Lowest Precipitation (in.) 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Year Lowest Occurred 1976 1997 1997 1993 1997 2000 2000 1999 1996 1999 2000 2000 1997
Heating Degree Days (F) 391. 299. 286. 166. 75. 13. 0. 0. 5. 56. 234. 389. 1914.
Cooling Degree Days (F) 0. 3. 15. 60. 139. 281. 461. 474. 323. 128. 16. 3. 1903.

Western Regional Climate Center, wrcc@dri.edu