BALCH POWER HOUSE, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 52.5 58.1 63.2 69.8 77.6 86.2 93.2 93.3 88.0 77.3 60.0 52.1 72.6
Highest Mean Max. Temperature (F) 58.5 68.1 71.6 78.1 86.2 92.1 99.0 99.3 95.4 83.9 66.1 58.0 99.3
Year Highest Occurred 1981 1991 1997 1987 1997 1981 1996 1996 1991 1999 1995 1980 1996
Lowest Mean Max. Temperature (F) 48.9 50.9 55.7 61.4 66.5 73.1 86.0 87.2 78.5 69.6 53.8 47.0 47.0
Year Lowest Occurred 1982 1998 1973 1983 1998 1998 1983 1976 1986 1984 1994 1971 1971
Mean Temperature (F) 45.0 48.9 52.7 57.7 65.0 72.8 79.8 80.0 75.0 65.2 51.6 44.9 61.6
Highest Mean Temperature (F) 51.3 55.7 59.1 64.6 72.5 78.2 84.7 83.7 81.1 71.7 56.6 49.6 84.7
Year Highest Occurred 1986 1991 1972 1989 1997 1981 1996 1996 1991 1991 1995 1977 1996
Lowest Mean Temperature (F) 41.5 44.0 47.0 50.8 55.6 62.4 72.7 74.6 67.5 59.7 46.9 40.1 40.1
Year Lowest Occurred 1972 1998 1973 1975 1998 1998 1983 1976 1986 1984 1994 1971 1971
Mean Min. Temperature (F) 37.4 39.6 42.1 45.6 52.4 59.3 66.3 66.6 61.9 53.1 43.2 37.6 50.4
Highest Mean Min. Temperature (F) 44.3 43.3 46.8 51.8 59.6 64.9 70.8 71.2 66.8 59.5 47.0 42.2 71.2
Year Highest Occurred 1986 1991 1972 1989 1992 1985 1972 1971 1991 1991 1995 1977 1971
Lowest Mean Min. Temperature (F) 33.7 36.3 37.1 40.2 44.6 51.7 59.3 62.0 56.2 47.6 39.0 33.1 33.1
Year Lowest Occurred 1972 1994 1977 1975 1998 1998 1983 1976 1977 1975 2000 1971 1971
Mean Precipitation (in.) 6.10 5.69 5.38 2.36 1.17 0.48 0.17 0.05 0.94 1.59 3.22 3.83 30.98
Highest Precipitation (in.) 15.50 16.74 15.43 8.24 5.42 5.49 3.87 0.32 5.21 4.41 9.10 12.57 16.74
Year Highest Occurred 1997 1986 1995 1982 1998 1998 1992 1988 1982 1992 1983 1996 1986
Lowest Precipitation (in.) 0.04 0.89 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00
Year Lowest Occurred 1976 1997 1972 1997 1985 1994 2000 2000 1996 1995 1992 1999 1972
Heating Degree Days (F) 621. 453. 389. 255. 134. 35. 2. 0. 11. 114. 406. 625. 3045.
Cooling Degree Days (F) 0. 0. 6. 35. 133. 267. 459. 463. 309. 119. 3. 0. 1794.

Western Regional Climate Center, wrcc@dri.edu