POTTER VALLEY P H, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 56.5 59.7 63.1 68.9 76.3 84.6 92.2 91.3 87.0 76.8 62.1 55.8 72.9
Highest Mean Max. Temperature (F) 62.5 67.8 69.5 75.2 85.8 90.7 97.2 95.4 96.9 85.6 73.1 64.9 97.2
Year Highest Occurred 1976 1988 1988 1987 1992 2000 1988 1972 1974 1978 1976 1976 1988
Lowest Mean Max. Temperature (F) 51.5 51.8 55.2 61.3 64.6 77.7 85.6 84.6 75.6 67.2 53.4 49.7 49.7
Year Lowest Occurred 1993 1999 1991 1983 1998 1980 1987 1976 1986 1984 1994 1994 1994
Mean Temperature (F) 45.3 48.2 50.8 54.5 60.2 66.9 72.6 71.5 67.6 59.7 49.6 44.5 57.6
Highest Mean Temperature (F) 48.6 51.9 55.2 59.1 66.6 71.5 76.8 74.0 72.4 64.9 55.8 48.1 76.8
Year Highest Occurred 1986 1991 1986 1985 1992 2000 1988 1978 1974 1991 1976 1977 1988
Lowest Mean Temperature (F) 42.0 42.9 45.6 49.7 54.0 61.0 67.8 67.9 60.8 54.3 43.3 37.9 37.9
Year Lowest Occurred 1982 1999 1991 1975 1977 1980 1987 1976 1986 1984 1994 1990 1990
Mean Min. Temperature (F) 34.1 36.7 38.5 40.1 44.1 49.2 53.0 51.7 48.1 42.5 37.1 33.1 42.4
Highest Mean Min. Temperature (F) 41.7 41.8 43.1 43.9 47.4 52.6 56.4 54.8 51.3 46.6 44.1 40.4 56.4
Year Highest Occurred 1998 1986 1993 1990 1992 1977 1988 1990 1998 1992 1997 1983 1988
Lowest Mean Min. Temperature (F) 29.4 31.3 34.4 36.4 40.5 44.3 49.3 49.1 44.6 37.5 32.5 24.6 24.6
Year Lowest Occurred 1976 1990 1976 1975 1977 1980 1999 1985 1972 1971 1978 1990 1990
Mean Precipitation (in.) 8.83 7.87 6.88 2.80 1.63 0.36 0.08 0.18 0.89 2.60 6.33 6.87 45.32
Highest Precipitation (in.) 23.34 18.91 19.15 7.09 7.47 2.86 1.48 1.40 4.96 6.86 17.77 19.36 23.34
Year Highest Occurred 1995 1998 1983 1983 1990 1992 1974 1976 1986 1979 1973 1996 1995
Lowest Precipitation (in.) 0.59 0.25 0.32 0.13 0.00 0.00 0.00 0.00 0.00 0.00 0.44 0.01 0.00
Year Lowest Occurred 1984 1988 1994 1985 1976 1987 2000 1998 1995 1995 1995 1989 1976
Heating Degree Days (F) 612. 471. 441. 319. 184. 53. 8. 4. 44. 193. 463. 637. 3429.
Cooling Degree Days (F) 0. 0. 0. 3. 36. 111. 242. 205. 121. 27. 0. 0. 745.

Western Regional Climate Center, wrcc@dri.edu