| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.7 | 58.1 | 62.3 | 68.7 | 76.3 | 85.1 | 92.8 | 92.6 | 87.8 | 76.4 | 59.7 | 52.6 | 72.2 |
| Highest Mean Max. Temperature (F) | 58.5 | 67.0 | 69.1 | 76.0 | 86.4 | 91.6 | 98.2 | 97.5 | 96.3 | 85.6 | 69.9 | 63.1 | 98.2 |
| Year Highest Occurred | 1984 | 1991 | 1988 | 1990 | 1992 | 1985 | 1988 | 1981 | 1991 | 1978 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.7 | 50.5 | 56.2 | 62.7 | 64.6 | 79.8 | 87.2 | 86.7 | 78.4 | 68.0 | 52.0 | 44.4 | 44.4 |
| Year Lowest Occurred | 1973 | 1999 | 1983 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 42.5 | 46.0 | 49.1 | 53.2 | 59.2 | 66.3 | 72.2 | 71.4 | 66.7 | 57.9 | 47.1 | 41.7 | 56.1 |
| Highest Mean Temperature (F) | 47.2 | 50.6 | 53.6 | 59.3 | 66.0 | 71.6 | 76.7 | 75.1 | 72.4 | 63.1 | 52.5 | 47.1 | 76.7 |
| Year Highest Occurred | 1986 | 1991 | 1993 | 1990 | 1992 | 1977 | 1984 | 1986 | 1991 | 1991 | 1995 | 1981 | 1984 |
| Lowest Mean Temperature (F) | 38.6 | 41.5 | 45.2 | 47.9 | 53.5 | 61.3 | 67.8 | 68.3 | 62.1 | 52.6 | 42.1 | 34.5 | 34.5 |
| Year Lowest Occurred | 1982 | 1990 | 1991 | 1975 | 1998 | 1980 | 1999 | 1975 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 31.3 | 33.8 | 35.8 | 37.7 | 42.1 | 47.5 | 51.5 | 50.1 | 45.6 | 39.3 | 34.4 | 30.7 | 40.0 |
| Highest Mean Min. Temperature (F) | 41.2 | 38.9 | 41.5 | 42.6 | 46.4 | 51.6 | 56.1 | 53.4 | 48.7 | 44.7 | 41.4 | 39.6 | 56.1 |
| Year Highest Occurred | 1995 | 1996 | 1993 | 1990 | 1997 | 1992 | 1984 | 1990 | 1977 | 1979 | 1997 | 1981 | 1984 |
| Lowest Mean Min. Temperature (F) | 25.3 | 28.6 | 30.6 | 33.1 | 38.6 | 42.8 | 46.7 | 46.7 | 42.6 | 34.3 | 28.2 | 22.3 | 22.3 |
| Year Lowest Occurred | 1975 | 1990 | 1976 | 1975 | 1975 | 1980 | 1999 | 1973 | 1971 | 1971 | 1993 | 1976 | 1976 |
| Mean Precipitation (in.) | 8.32 | 7.49 | 6.31 | 2.50 | 1.44 | 0.36 | 0.07 | 0.21 | 0.68 | 2.35 | 5.72 | 6.78 | 42.23 |
| Highest Precipitation (in.) | 24.35 | 19.43 | 15.62 | 6.49 | 7.26 | 2.04 | 0.85 | 1.72 | 4.18 | 5.96 | 15.81 | 19.75 | 24.35 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1990 | 1992 | 1974 | 1976 | 1986 | 1979 | 1984 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.44 | 0.20 | 0.42 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 | 0.08 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1985 | 1976 | 1987 | 1999 | 2000 | 1999 | 1978 | 1990 | 1989 | 1976 |
| Heating Degree Days (F) | 697. | 535. | 496. | 358. | 201. | 57. | 16. | 5. | 49. | 247. | 540. | 724. | 3925. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 21. | 96. | 238. | 202. | 99. | 24. | 0. | 0. | 684. |