| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.5 | 58.7 | 58.9 | 59.0 | 58.8 | 60.1 | 61.1 | 62.5 | 64.3 | 64.5 | 60.7 | 56.7 | 60.2 |
| Highest Mean Max. Temperature (F) | 60.8 | 63.2 | 64.2 | 63.1 | 64.1 | 63.1 | 64.3 | 67.5 | 70.7 | 68.1 | 65.1 | 60.7 | 70.7 |
| Year Highest Occurred | 1994 | 1988 | 1988 | 1987 | 1997 | 1981 | 1995 | 1983 | 1983 | 1983 | 1986 | 1980 | 1983 |
| Lowest Mean Max. Temperature (F) | 53.1 | 53.7 | 55.1 | 54.3 | 55.1 | 57.1 | 56.8 | 58.6 | 59.6 | 61.3 | 56.0 | 53.5 | 53.1 |
| Year Lowest Occurred | 1982 | 1989 | 1999 | 1975 | 1999 | 1991 | 1971 | 1973 | 1991 | 1975 | 1994 | 1971 | 1982 |
| Mean Temperature (F) | 50.6 | 52.6 | 53.2 | 53.5 | 54.3 | 55.8 | 57.3 | 58.7 | 59.5 | 58.9 | 54.7 | 51.0 | 55.0 |
| Highest Mean Temperature (F) | 54.1 | 55.7 | 56.6 | 57.5 | 58.8 | 58.6 | 60.6 | 63.2 | 64.5 | 62.1 | 58.3 | 54.3 | 64.5 |
| Year Highest Occurred | 1986 | 1992 | 1992 | 1992 | 1997 | 1992 | 1995 | 1983 | 1997 | 1987 | 1997 | 1983 | 1997 |
| Lowest Mean Temperature (F) | 47.1 | 49.0 | 49.6 | 49.1 | 51.0 | 53.1 | 52.9 | 54.6 | 56.7 | 55.4 | 50.8 | 46.8 | 46.8 |
| Year Lowest Occurred | 1972 | 1989 | 1985 | 1975 | 1971 | 1972 | 1971 | 1973 | 1975 | 1975 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 44.6 | 46.4 | 47.4 | 48.0 | 49.7 | 51.5 | 53.5 | 54.8 | 54.6 | 53.3 | 48.7 | 45.2 | 49.8 |
| Highest Mean Min. Temperature (F) | 49.5 | 49.8 | 52.1 | 52.2 | 54.8 | 55.4 | 57.5 | 58.9 | 58.6 | 58.0 | 53.2 | 52.5 | 58.9 |
| Year Highest Occurred | 1995 | 1995 | 1992 | 1992 | 1992 | 1992 | 1992 | 1983 | 1997 | 1987 | 1997 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 40.5 | 41.6 | 42.8 | 43.9 | 46.5 | 48.2 | 49.0 | 50.7 | 52.2 | 47.7 | 45.3 | 40.0 | 40.0 |
| Year Lowest Occurred | 1972 | 1974 | 1976 | 1976 | 1974 | 1971 | 1971 | 1973 | 1975 | 1971 | 1977 | 1990 | 1990 |
| Mean Precipitation (in.) | 4.14 | 3.74 | 3.23 | 1.17 | 0.51 | 0.09 | 0.03 | 0.08 | 0.17 | 1.03 | 2.61 | 2.97 | 19.77 |
| Highest Precipitation (in.) | 9.97 | 13.90 | 9.74 | 3.91 | 3.68 | 0.53 | 0.55 | 0.75 | 1.13 | 4.87 | 7.30 | 6.88 | 13.90 |
| Year Highest Occurred | 1993 | 1998 | 1983 | 1978 | 1998 | 1995 | 1974 | 1997 | 1989 | 1972 | 1973 | 1995 | 1998 |
| Lowest Precipitation (in.) | 0.40 | 0.22 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1994 | 1985 | 1992 | 1996 | 2000 | 2000 | 1995 | 1980 | 1995 | 1989 | 1985 |
| Heating Degree Days (F) | 448. | 355. | 352. | 345. | 333. | 277. | 240. | 202. | 174. | 193. | 309. | 437. | 3665. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 1. | 4. | 8. | 4. | 0. | 0. | 17. |