| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 65.6 | 65.8 | 65.3 | 68.0 | 69.3 | 72.6 | 75.3 | 76.8 | 76.5 | 74.3 | 70.4 | 66.7 | 70.6 |
| Highest Mean Max. Temperature (F) | 72.6 | 71.0 | 71.8 | 73.0 | 73.9 | 79.0 | 78.3 | 82.3 | 83.4 | 78.9 | 75.6 | 71.9 | 83.4 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1996 | 1997 | 1981 | 1981 | 1994 | 1984 | 1982 | 1989 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 61.1 | 61.6 | 61.4 | 62.9 | 65.9 | 68.9 | 71.9 | 73.1 | 72.0 | 69.4 | 65.8 | 60.6 | 60.6 |
| Year Lowest Occurred | 1974 | 1998 | 1991 | 1975 | 1995 | 1982 | 1987 | 1989 | 1986 | 2000 | 1985 | 1971 | 1971 |
| Mean Temperature (F) | 57.1 | 58.0 | 58.3 | 60.8 | 63.1 | 66.4 | 69.3 | 70.7 | 70.1 | 66.9 | 61.6 | 57.6 | 63.3 |
| Highest Mean Temperature (F) | 62.3 | 61.7 | 62.5 | 65.6 | 67.6 | 71.9 | 71.7 | 74.7 | 76.5 | 69.6 | 65.9 | 60.9 | 76.5 |
| Year Highest Occurred | 1986 | 1995 | 1988 | 1992 | 1997 | 1981 | 1981 | 1994 | 1984 | 1990 | 1976 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 53.9 | 54.2 | 55.0 | 56.7 | 60.1 | 63.6 | 66.3 | 67.7 | 65.8 | 63.7 | 57.9 | 52.7 | 52.7 |
| Year Lowest Occurred | 1972 | 1979 | 1991 | 1975 | 1980 | 1982 | 1987 | 1989 | 1986 | 2000 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 48.6 | 50.1 | 51.3 | 53.6 | 56.9 | 60.1 | 63.3 | 64.5 | 63.6 | 59.4 | 52.7 | 48.5 | 56.1 |
| Highest Mean Min. Temperature (F) | 53.1 | 54.1 | 55.8 | 58.7 | 61.2 | 64.7 | 65.6 | 68.0 | 69.5 | 62.5 | 56.2 | 54.6 | 69.5 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1992 | 1997 | 1981 | 1992 | 1971 | 1984 | 1983 | 1976 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | 44.8 | 46.8 | 47.0 | 50.4 | 53.6 | 57.6 | 60.6 | 61.8 | 59.5 | 55.4 | 48.6 | 44.8 | 44.8 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1976 | 1991 | 1988 | 1987 | 1987 | 1986 | 1971 | 1994 | 1971 | 1972 |
| Mean Precipitation (in.) | 2.98 | 3.11 | 2.40 | 0.63 | 0.24 | 0.08 | 0.03 | 0.14 | 0.26 | 0.36 | 1.13 | 1.79 | 13.15 |
| Highest Precipitation (in.) | 12.71 | 13.79 | 6.37 | 3.18 | 2.55 | 0.74 | 0.32 | 2.47 | 1.91 | 1.74 | 4.75 | 5.70 | 13.79 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1983 | 1977 | 1993 | 1992 | 1977 | 1983 | 1987 | 1985 | 1971 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 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 | 1984 | 1997 | 1997 | 2000 | 2000 | 2000 | 1999 | 1999 | 1999 | 2000 | 2000 | 1976 |
| Heating Degree Days (F) | 252. | 205. | 200. | 141. | 78. | 19. | 1. | 0. | 2. | 21. | 121. | 234. | 1274. |
| Cooling Degree Days (F) | 4. | 6. | 6. | 15. | 19. | 58. | 135. | 175. | 154. | 81. | 22. | 4. | 679. |