| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.9 | 55.0 | 56.9 | 62.6 | 70.3 | 79.3 | 86.6 | 86.4 | 81.0 | 71.5 | 58.1 | 53.1 | 67.8 |
| Highest Mean Max. Temperature (F) | 58.9 | 63.7 | 64.2 | 71.7 | 78.6 | 84.4 | 91.1 | 90.7 | 88.1 | 79.5 | 69.1 | 62.4 | 91.1 |
| Year Highest Occurred | 1984 | 1988 | 1972 | 1987 | 1992 | 1981 | 1996 | 1996 | 1974 | 1978 | 1976 | 1976 | 1996 |
| Lowest Mean Max. Temperature (F) | 47.2 | 46.9 | 48.6 | 54.3 | 58.7 | 71.9 | 80.9 | 78.3 | 71.6 | 63.3 | 49.1 | 44.4 | 44.4 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1973 | 1971 | 1971 |
| Mean Temperature (F) | 42.2 | 44.2 | 46.4 | 50.8 | 57.6 | 65.1 | 70.9 | 70.3 | 65.4 | 57.1 | 46.7 | 42.1 | 54.9 |
| Highest Mean Temperature (F) | 46.8 | 49.6 | 51.4 | 56.3 | 64.7 | 69.3 | 75.6 | 74.2 | 70.4 | 62.2 | 54.0 | 45.6 | 75.6 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1987 | 1992 | 1977 | 1996 | 1996 | 1975 | 1991 | 1995 | 1989 | 1996 |
| Lowest Mean Temperature (F) | 36.9 | 39.0 | 41.1 | 43.8 | 50.4 | 59.6 | 64.4 | 64.3 | 58.0 | 50.7 | 41.2 | 36.1 | 36.1 |
| Year Lowest Occurred | 1982 | 1990 | 1991 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 31.4 | 33.3 | 35.9 | 39.0 | 44.9 | 50.8 | 55.2 | 54.2 | 49.7 | 42.7 | 35.3 | 31.0 | 42.0 |
| Highest Mean Min. Temperature (F) | 38.5 | 38.4 | 40.9 | 43.6 | 50.8 | 54.8 | 60.0 | 57.6 | 54.3 | 46.8 | 41.1 | 37.3 | 60.0 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1990 | 1992 | 2000 | 1996 | 1998 | 1998 | 1991 | 1995 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 26.5 | 27.8 | 30.5 | 33.3 | 40.0 | 46.0 | 47.5 | 48.9 | 44.4 | 38.1 | 31.1 | 24.4 | 24.4 |
| Year Lowest Occurred | 1982 | 1990 | 1985 | 1975 | 1977 | 1980 | 1983 | 1985 | 1986 | 1984 | 1978 | 1978 | 1978 |
| Mean Precipitation (in.) | 9.86 | 9.21 | 8.52 | 3.69 | 1.97 | 0.62 | 0.18 | 0.23 | 1.10 | 2.72 | 7.08 | 7.89 | 53.07 |
| Highest Precipitation (in.) | 25.22 | 25.45 | 23.45 | 11.31 | 7.85 | 2.77 | 3.82 | 2.34 | 5.77 | 7.87 | 21.29 | 27.81 | 27.81 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1998 | 1995 | 1974 | 1976 | 1986 | 1975 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.34 | 0.38 | 1.49 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1994 | 1973 | 1992 | 1986 | 2000 | 2000 | 1999 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 708. | 584. | 578. | 429. | 257. | 82. | 18. | 17. | 88. | 265. | 549. | 712. | 4287. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 27. | 83. | 200. | 182. | 97. | 20. | 0. | 0. | 612. |