STOCKTON WSO, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 53.8 61.2 66.1 73.3 81.3 88.9 93.8 92.6 88.2 78.6 64.0 53.8 74.6
Highest Mean Max. Temperature (F) 59.0 66.2 73.8 80.9 87.2 98.4 98.2 96.3 95.1 84.1 73.1 60.4 98.4
Year Highest Occurred 1976 1988 1972 1977 1997 1981 1984 1996 1979 1978 1995 1976 1981
Lowest Mean Max. Temperature (F) 47.5 56.5 60.1 65.9 70.4 82.2 87.7 87.5 79.8 73.3 56.9 46.2 46.2
Year Lowest Occurred 1972 1998 1991 1975 1998 1998 1987 1976 1986 1984 1972 1985 1985
Mean Temperature (F) 46.0 51.1 54.9 60.0 66.7 73.2 77.3 76.5 72.8 64.6 53.1 45.3 61.8
Highest Mean Temperature (F) 52.8 54.8 59.5 64.9 72.3 80.5 81.8 79.9 77.0 69.6 60.2 50.5 81.8
Year Highest Occurred 1995 1992 1972 1977 1992 1981 1984 1996 1979 1991 1995 1995 1984
Lowest Mean Temperature (F) 40.3 47.4 49.7 53.3 59.4 68.4 72.8 73.3 67.1 60.5 48.5 40.9 40.3
Year Lowest Occurred 1972 1990 1985 1975 1998 1998 1987 1976 1986 1998 2000 1990 1972
Mean Min. Temperature (F) 38.1 41.0 43.6 46.7 52.1 57.5 60.8 60.3 57.4 50.5 42.1 36.7 48.9
Highest Mean Min. Temperature (F) 47.0 46.7 49.5 51.6 58.0 62.5 65.4 64.5 61.8 55.4 47.2 43.7 65.4
Year Highest Occurred 1995 1996 1993 1992 1992 1981 1984 1983 1983 1991 1995 1983 1984
Lowest Mean Min. Temperature (F) 30.5 35.9 36.7 40.7 48.3 53.9 56.4 56.8 54.0 46.0 37.3 29.7 29.7
Year Lowest Occurred 1976 1985 1985 1975 1998 1982 1999 1973 1973 1971 1975 1990 1990
Mean Precipitation (in.) 2.71 2.46 2.28 0.96 0.50 0.09 0.05 0.05 0.33 0.82 1.77 1.82 13.84
Highest Precipitation (in.) 6.88 8.22 6.48 2.79 3.73 0.42 0.61 0.81 2.47 2.68 6.22 4.54 8.22
Year Highest Occurred 1995 1998 1982 1974 1998 1993 1974 1975 1982 2000 1972 1996 1998
Lowest Precipitation (in.) 0.14 0.29 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.00
Year Lowest Occurred 1976 1997 1972 1989 1992 1999 2000 2000 1998 1995 1995 1989 1992
Heating Degree Days (F) 592. 391. 313. 169. 54. 6. 0. 0. 5. 76. 348. 609. 2563.
Cooling Degree Days (F) 0. 0. 0. 18. 111. 254. 390. 363. 247. 73. 0. 0. 1456.

Western Regional Climate Center, wrcc@dri.edu