| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.7 | 59.9 | 62.3 | 68.5 | 76.4 | 86.1 | 93.4 | 92.9 | 87.4 | 77.0 | 62.7 | 56.8 | 73.3 |
| Highest Mean Max. Temperature (F) | 62.1 | 68.4 | 69.1 | 75.5 | 84.9 | 91.8 | 96.8 | 96.5 | 94.3 | 84.8 | 71.2 | 63.9 | 96.8 |
| Year Highest Occurred | 1984 | 1991 | 1972 | 1987 | 1992 | 1977 | 1984 | 1998 | 1974 | 1978 | 1995 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 52.0 | 53.5 | 55.0 | 61.5 | 62.7 | 77.6 | 88.6 | 88.3 | 77.1 | 70.0 | 55.5 | 50.1 | 50.1 |
| Year Lowest Occurred | 1993 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1973 | 1971 | 1971 |
| Mean Temperature (F) | 45.1 | 47.7 | 50.0 | 54.4 | 61.2 | 68.8 | 74.6 | 73.5 | 69.0 | 60.4 | 49.6 | 44.7 | 58.3 |
| Highest Mean Temperature (F) | 49.3 | 52.3 | 55.0 | 59.4 | 67.5 | 73.3 | 78.1 | 76.7 | 73.1 | 64.8 | 55.7 | 48.4 | 78.1 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1990 | 1992 | 1977 | 1984 | 1971 | 1975 | 1978 | 1995 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 42.0 | 42.5 | 45.1 | 47.9 | 53.4 | 64.0 | 70.2 | 69.6 | 62.1 | 54.9 | 44.0 | 39.3 | 39.3 |
| Year Lowest Occurred | 1972 | 1999 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 33.5 | 35.5 | 37.7 | 40.2 | 45.9 | 51.5 | 55.7 | 54.1 | 50.5 | 43.8 | 36.5 | 32.5 | 43.1 |
| Highest Mean Min. Temperature (F) | 40.8 | 39.9 | 42.5 | 44.9 | 50.0 | 54.8 | 60.4 | 57.3 | 53.7 | 47.5 | 42.0 | 39.8 | 60.4 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1990 | 1992 | 1985 | 1991 | 1971 | 1998 | 1993 | 1981 | 1996 | 1991 |
| Lowest Mean Min. Temperature (F) | 27.6 | 29.3 | 30.6 | 34.3 | 41.9 | 46.7 | 50.8 | 51.0 | 46.8 | 37.9 | 32.5 | 25.2 | 25.2 |
| Year Lowest Occurred | 1977 | 1990 | 1976 | 1975 | 1999 | 1999 | 2000 | 1976 | 1972 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 9.23 | 8.29 | 8.05 | 3.43 | 1.96 | 0.50 | 0.15 | 0.17 | 1.02 | 2.75 | 7.21 | 7.34 | 50.10 |
| Highest Precipitation (in.) | 21.74 | 25.00 | 23.45 | 10.47 | 7.53 | 2.40 | 3.15 | 1.59 | 5.23 | 7.21 | 21.16 | 21.13 | 25.00 |
| Year Highest Occurred | 1998 | 1986 | 1995 | 1982 | 1990 | 1993 | 1974 | 1976 | 1986 | 1981 | 1973 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.50 | 0.59 | 0.69 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1976 | 1973 | 1992 | 1990 | 2000 | 2000 | 1999 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 617. | 485. | 466. | 326. | 176. | 38. | 2. | 1. | 33. | 182. | 462. | 630. | 3418. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 56. | 151. | 298. | 265. | 152. | 41. | 0. | 0. | 969. |