GILROY, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 59.9 64.0 67.2 73.0 78.2 84.2 88.3 87.9 85.8 79.0 67.2 60.2 74.6
Highest Mean Max. Temperature (F) 64.5 71.6 74.9 78.7 88.0 93.5 94.1 92.1 92.4 84.3 75.5 65.5 94.1
Year Highest Occurred 1976 1991 1997 1987 1997 1981 1996 1992 1979 1990 1995 1999 1996
Lowest Mean Max. Temperature (F) 56.1 59.0 61.7 66.0 69.7 77.5 82.9 84.1 76.7 72.8 57.8 54.1 54.1
Year Lowest Occurred 1972 1998 1973 1975 1998 1998 1987 1987 1986 1984 1985 1971 1971
Mean Temperature (F) 49.7 53.3 56.1 59.8 64.4 69.1 72.0 71.9 70.1 64.3 55.2 49.2 61.3
Highest Mean Temperature (F) 53.7 57.7 60.0 64.3 69.9 75.6 74.5 74.4 74.1 67.7 61.6 55.3 75.6
Year Highest Occurred 1995 1991 1978 1992 1997 1981 1996 1992 1984 1991 1995 1977 1981
Lowest Mean Temperature (F) 45.4 49.6 51.5 54.5 59.6 65.7 68.1 69.6 64.2 58.8 51.1 43.9 43.9
Year Lowest Occurred 1972 1990 1973 1975 1998 1991 1987 1987 1986 1971 1994 1990 1990
Mean Min. Temperature (F) 39.4 42.5 44.9 46.6 50.6 54.0 55.7 55.8 54.3 49.5 43.2 38.2 47.9
Highest Mean Min. Temperature (F) 47.4 47.1 50.0 50.5 54.1 57.7 58.7 59.0 58.3 54.2 48.3 47.4 59.0
Year Highest Occurred 1995 1983 1978 1992 1992 1981 1995 1983 1983 1987 1981 1983 1983
Lowest Mean Min. Temperature (F) 34.6 37.1 39.5 42.9 47.2 50.9 53.3 52.9 50.9 43.1 37.6 29.8 29.8
Year Lowest Occurred 1972 1974 1977 1975 1980 1980 1987 1973 1996 1971 1980 1990 1990
Mean Precipitation (in.) 4.30 4.10 3.64 1.16 0.41 0.10 0.06 0.05 0.33 0.93 2.52 3.00 20.60
Highest Precipitation (in.) 11.89 13.18 13.22 4.68 2.34 0.76 0.80 1.00 2.67 3.18 7.50 9.15 13.22
Year Highest Occurred 1997 1998 1991 1982 1996 1993 1974 1976 1976 2000 1972 1996 1991
Lowest Precipitation (in.) 0.21 0.16 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00
Year Lowest Occurred 1976 1997 1972 1977 1992 1999 2000 2000 1998 1999 1992 1989 1977
Heating Degree Days (F) 477. 329. 284. 178. 95. 19. 2. 1. 13. 92. 298. 490. 2278.
Cooling Degree Days (F) 0. 0. 6. 22. 76. 141. 218. 213. 164. 69. 4. 0. 913.

Western Regional Climate Center, wrcc@dri.edu