| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.9 | 40.0 | 48.7 | 57.4 | 66.5 | 76.2 | 79.8 | 77.7 | 71.6 | 61.5 | 46.2 | 35.8 | 57.9 |
| Highest Mean Max. Temperature (F) | 46.9 | 49.2 | 57.7 | 67.5 | 73.7 | 82.1 | 85.9 | 83.2 | 79.3 | 66.5 | 56.7 | 49.1 | 85.9 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1981 | 2000 | 1994 | 2000 | 2000 | 1998 | 1999 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 21.2 | 30.6 | 41.2 | 49.5 | 60.7 | 70.0 | 74.9 | 73.7 | 66.1 | 51.9 | 36.5 | 24.6 | 21.2 |
| Year Lowest Occurred | 1984 | 1973 | 1984 | 1983 | 1983 | 1983 | 1986 | 1993 | 1986 | 1984 | 1972 | 1991 | 1984 |
| Mean Temperature (F) | 17.8 | 24.1 | 33.4 | 41.1 | 49.8 | 58.9 | 63.4 | 61.6 | 54.5 | 44.2 | 30.4 | 19.9 | 41.6 |
| Highest Mean Temperature (F) | 28.8 | 33.3 | 39.5 | 47.4 | 55.4 | 63.0 | 67.8 | 66.5 | 61.0 | 48.7 | 38.1 | 30.0 | 67.8 |
| Year Highest Occurred | 1999 | 2000 | 1999 | 1981 | 2000 | 1994 | 2000 | 2000 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 6.1 | 12.2 | 27.3 | 35.1 | 44.5 | 54.2 | 60.2 | 56.0 | 49.6 | 39.6 | 20.4 | 9.6 | 6.1 |
| Year Lowest Occurred | 1984 | 1974 | 1977 | 1975 | 1978 | 1975 | 1975 | 1978 | 1973 | 1976 | 1972 | 1991 | 1984 |
| Mean Min. Temperature (F) | 1.7 | 8.2 | 18.1 | 24.7 | 33.1 | 41.5 | 47.0 | 45.5 | 37.3 | 26.9 | 14.5 | 4.0 | 25.2 |
| Highest Mean Min. Temperature (F) | 13.9 | 17.8 | 24.0 | 30.2 | 37.9 | 45.7 | 51.6 | 51.5 | 43.5 | 31.5 | 22.1 | 11.4 | 51.6 |
| Year Highest Occurred | 1999 | 2000 | 1990 | 1986 | 1997 | 1986 | 1998 | 1982 | 1997 | 1998 | 1998 | 2000 | 1998 |
| Lowest Mean Min. Temperature (F) | -9.7 | -8.9 | 6.8 | 16.3 | 24.9 | 33.5 | 40.3 | 33.4 | 29.2 | 15.3 | 4.3 | -7.7 | -9.7 |
| Year Lowest Occurred | 1975 | 1974 | 1977 | 1978 | 1978 | 1975 | 1975 | 1978 | 1973 | 1975 | 1972 | 1978 | 1975 |
| Mean Precipitation (in.) | 0.29 | 0.19 | 0.44 | 0.62 | 0.77 | 0.58 | 1.40 | 1.64 | 1.00 | 0.68 | 0.52 | 0.25 | 8.38 |
| Highest Precipitation (in.) | 1.01 | 0.52 | 1.26 | 2.70 | 1.97 | 1.62 | 3.64 | 3.38 | 3.13 | 2.40 | 1.67 | 1.00 | 3.64 |
| Year Highest Occurred | 1979 | 1975 | 1998 | 1994 | 1976 | 1981 | 1973 | 1982 | 1997 | 1998 | 1986 | 1978 | 1973 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.69 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1991 | 1977 | 1972 | 1998 | 1976 | 1987 | 1980 | 1979 | 1982 | 1999 | 1993 | 1986 |
| Heating Degree Days (F) | 1463. | 1145. | 980. | 719. | 471. | 198. | 92. | 146. | 323. | 645. | 1044. | 1399. | 8625. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 13. | 42. | 40. | 6. | 0. | 0. | 0. | 101. |