| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.1 | 56.3 | 57.2 | 59.0 | 61.9 | 64.8 | 66.7 | 66.7 | 67.1 | 64.2 | 58.1 | 54.8 | 61.0 |
| Highest Mean Max. Temperature (F) | 60.3 | 61.7 | 62.2 | 63.8 | 65.9 | 67.6 | 69.2 | 68.9 | 72.4 | 68.5 | 62.6 | 59.5 | 72.4 |
| Year Highest Occurred | 1981 | 1992 | 1978 | 1989 | 1992 | 2000 | 1993 | 1983 | 1979 | 1991 | 1989 | 1989 | 1979 |
| Lowest Mean Max. Temperature (F) | 50.9 | 50.5 | 52.7 | 54.7 | 57.8 | 62.0 | 64.1 | 63.7 | 63.5 | 60.4 | 51.3 | 49.2 | 49.2 |
| Year Lowest Occurred | 1972 | 1999 | 1999 | 1971 | 1999 | 1971 | 1998 | 1973 | 1975 | 1971 | 1994 | 1998 | 1998 |
| Mean Temperature (F) | 46.4 | 47.9 | 48.7 | 50.5 | 53.7 | 56.9 | 59.1 | 59.2 | 58.1 | 54.5 | 49.5 | 46.1 | 52.6 |
| Highest Mean Temperature (F) | 51.2 | 52.1 | 53.1 | 54.4 | 56.8 | 59.3 | 61.1 | 61.4 | 62.5 | 57.1 | 53.7 | 49.6 | 62.5 |
| Year Highest Occurred | 1986 | 1980 | 1978 | 1989 | 1997 | 2000 | 1990 | 1999 | 1979 | 1979 | 1999 | 1995 | 1979 |
| Lowest Mean Temperature (F) | 43.0 | 41.9 | 45.1 | 45.7 | 50.8 | 55.1 | 57.2 | 56.3 | 55.0 | 50.9 | 43.5 | 40.1 | 40.1 |
| Year Lowest Occurred | 1972 | 1989 | 1999 | 1975 | 1999 | 1976 | 1973 | 1973 | 1993 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 37.7 | 39.5 | 40.2 | 41.9 | 45.4 | 48.9 | 51.5 | 51.7 | 49.0 | 44.8 | 40.9 | 37.3 | 44.1 |
| Highest Mean Min. Temperature (F) | 43.7 | 44.6 | 45.5 | 45.5 | 48.6 | 51.9 | 54.4 | 55.5 | 52.7 | 49.6 | 46.6 | 43.1 | 55.5 |
| Year Highest Occurred | 1995 | 1983 | 1993 | 2000 | 1987 | 1986 | 2000 | 1999 | 1990 | 1979 | 1999 | 1995 | 1999 |
| Lowest Mean Min. Temperature (F) | 33.2 | 32.8 | 36.1 | 36.2 | 42.2 | 45.6 | 48.4 | 48.9 | 46.0 | 40.0 | 33.4 | 30.4 | 30.4 |
| Year Lowest Occurred | 1977 | 1989 | 1977 | 1975 | 1974 | 1976 | 1993 | 1973 | 1993 | 1974 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 12.24 | 11.20 | 10.99 | 5.89 | 3.70 | 1.70 | 0.37 | 0.75 | 1.99 | 5.25 | 11.65 | 13.40 | 79.13 |
| Highest Precipitation (in.) | 24.42 | 26.58 | 21.25 | 14.62 | 9.16 | 5.52 | 3.40 | 4.98 | 11.17 | 15.48 | 35.30 | 33.78 | 35.30 |
| Year Highest Occurred | 1995 | 1986 | 1972 | 1982 | 1993 | 1988 | 1983 | 1983 | 1977 | 1975 | 1973 | 1996 | 1973 |
| Lowest Precipitation (in.) | 0.87 | 0.57 | 3.63 | 0.90 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.13 | 3.21 | 1.53 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1985 | 1992 | 1999 | 1999 | 1998 | 1999 | 1978 | 1989 | 1976 | 1992 |
| Heating Degree Days (F) | 576. | 494. | 490. | 438. | 352. | 245. | 184. | 181. | 213. | 326. | 465. | 589. | 4553. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 1. | 4. | 0. | 0. | 0. | 5. |