| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.6 | 39.6 | 47.7 | 56.4 | 66.1 | 76.6 | 80.3 | 77.3 | 71.4 | 60.4 | 45.5 | 36.0 | 57.7 |
| Highest Mean Max. Temperature (F) | 44.8 | 48.7 | 55.6 | 65.8 | 73.2 | 82.0 | 83.4 | 79.7 | 76.6 | 65.4 | 55.8 | 46.2 | 83.4 |
| Year Highest Occurred | 1986 | 2000 | 1997 | 1989 | 1996 | 1990 | 1994 | 2000 | 1998 | 1987 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 23.0 | 32.3 | 41.4 | 49.2 | 60.9 | 69.4 | 76.9 | 74.9 | 66.6 | 51.2 | 34.4 | 24.7 | 23.0 |
| Year Lowest Occurred | 1992 | 1992 | 1984 | 1983 | 1983 | 1983 | 1986 | 1993 | 1986 | 1984 | 1992 | 1991 | 1992 |
| Mean Temperature (F) | 18.7 | 24.6 | 33.5 | 40.6 | 49.6 | 58.8 | 63.4 | 61.4 | 54.7 | 44.0 | 30.9 | 21.0 | 41.8 |
| Highest Mean Temperature (F) | 27.1 | 32.5 | 38.3 | 46.7 | 54.9 | 62.4 | 65.7 | 63.2 | 58.7 | 47.5 | 35.8 | 30.1 | 65.7 |
| Year Highest Occurred | 2000 | 1995 | 1999 | 1989 | 1996 | 1994 | 1989 | 1995 | 1997 | 1979 | 1981 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 7.9 | 16.9 | 27.0 | 35.2 | 45.7 | 54.3 | 61.0 | 59.2 | 51.9 | 40.6 | 23.1 | 10.4 | 7.9 |
| Year Lowest Occurred | 1992 | 1984 | 1984 | 1973 | 1995 | 1983 | 1987 | 1974 | 1971 | 1984 | 1972 | 1991 | 1992 |
| Mean Min. Temperature (F) | 2.7 | 9.6 | 19.3 | 24.7 | 33.0 | 41.0 | 46.4 | 45.4 | 37.9 | 27.6 | 16.2 | 5.9 | 25.8 |
| Highest Mean Min. Temperature (F) | 11.5 | 16.8 | 23.3 | 28.7 | 36.6 | 44.1 | 49.5 | 49.3 | 42.4 | 33.4 | 22.0 | 14.0 | 49.5 |
| Year Highest Occurred | 2000 | 1995 | 1974 | 1986 | 1992 | 1981 | 1981 | 1982 | 1997 | 1972 | 1996 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -7.8 | -1.0 | 12.7 | 20.2 | 29.3 | 38.1 | 41.6 | 42.9 | 33.8 | 24.2 | 9.8 | -3.8 | -7.8 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1973 | 1999 | 1999 | 1987 | 1974 | 1987 | 1976 | 1972 | 1991 | 1984 |
| Mean Precipitation (in.) | 0.20 | 0.26 | 0.49 | 0.72 | 1.02 | 0.85 | 1.61 | 1.68 | 1.13 | 0.81 | 0.46 | 0.29 | 9.52 |
| Highest Precipitation (in.) | 0.97 | 0.86 | 1.69 | 2.92 | 3.28 | 2.17 | 3.31 | 3.40 | 2.83 | 2.56 | 1.45 | 1.09 | 3.40 |
| Year Highest Occurred | 1985 | 1982 | 2000 | 1986 | 1980 | 1988 | 1988 | 1988 | 1995 | 1984 | 1997 | 1999 | 1988 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.12 | 0.52 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1990 | 1990 | 1993 | 2000 | 1993 | 1993 | 1978 | 1992 | 1995 | 1999 | 1992 | 1998 |
| Heating Degree Days (F) | 1438. | 1132. | 977. | 735. | 479. | 192. | 66. | 117. | 311. | 650. | 1024. | 1365. | 8486. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 15. | 4. | 0. | 0. | 0. | 0. | 25. |