| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 22.8 | 29.2 | 41.4 | 57.6 | 71.0 | 79.8 | 83.6 | 81.1 | 73.3 | 60.6 | 41.0 | 27.1 | 55.7 |
| Highest Mean Max. Temperature (F) | 36.9 | 44.0 | 50.9 | 70.6 | 83.9 | 92.2 | 92.7 | 89.7 | 80.5 | 66.2 | 54.0 | 36.2 | 92.7 |
| Year Highest Occurred | 1990 | 1987 | 1987 | 1987 | 1988 | 1988 | 1988 | 1988 | 1988 | 1975 | 1999 | 1998 | 1988 |
| Lowest Mean Max. Temperature (F) | 9.4 | 19.9 | 31.6 | 45.2 | 62.6 | 71.7 | 73.0 | 74.5 | 65.1 | 54.5 | 31.2 | 10.4 | 9.4 |
| Year Lowest Occurred | 1977 | 1979 | 1975 | 1975 | 1996 | 1993 | 1992 | 1992 | 1993 | 1995 | 1991 | 1983 | 1977 |
| Mean Temperature (F) | 12.5 | 18.7 | 31.3 | 45.4 | 58.8 | 68.2 | 72.4 | 70.0 | 60.6 | 48.3 | 31.8 | 18.0 | 44.7 |
| Highest Mean Temperature (F) | 26.0 | 32.2 | 40.2 | 53.8 | 66.1 | 75.8 | 77.2 | 76.9 | 65.2 | 53.5 | 40.5 | 26.4 | 77.2 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1987 | 1988 | 1988 | 1988 | 1983 | 1988 | 1973 | 1999 | 1997 | 1988 |
| Lowest Mean Temperature (F) | -2.6 | 7.6 | 20.8 | 37.2 | 51.4 | 62.7 | 64.1 | 64.1 | 54.1 | 42.4 | 23.5 | 1.7 | -2.6 |
| Year Lowest Occurred | 1977 | 1979 | 1975 | 1975 | 1997 | 1982 | 1992 | 1992 | 1993 | 1976 | 1996 | 1983 | 1977 |
| Mean Min. Temperature (F) | 2.2 | 8.1 | 21.2 | 33.2 | 46.6 | 56.6 | 61.2 | 58.9 | 47.9 | 35.9 | 22.6 | 8.9 | 33.6 |
| Highest Mean Min. Temperature (F) | 15.0 | 23.3 | 31.3 | 38.5 | 52.1 | 62.8 | 65.8 | 65.3 | 52.7 | 42.2 | 29.7 | 20.0 | 65.8 |
| Year Highest Occurred | 1990 | 1998 | 1973 | 1977 | 1991 | 1991 | 1983 | 1983 | 1990 | 1984 | 1987 | 1997 | 1983 |
| Lowest Mean Min. Temperature (F) | -14.6 | -4.8 | 9.9 | 27.4 | 39.7 | 50.9 | 55.2 | 53.2 | 40.7 | 29.0 | 14.7 | -7.0 | -14.6 |
| Year Lowest Occurred | 1977 | 1979 | 1975 | 1996 | 1997 | 1982 | 1992 | 1977 | 1974 | 1976 | 1976 | 1983 | 1977 |
| Mean Precipitation (in.) | 0.86 | 0.53 | 1.93 | 2.42 | 3.55 | 4.83 | 3.94 | 4.12 | 2.76 | 2.15 | 1.69 | 0.89 | 29.67 |
| Highest Precipitation (in.) | 2.73 | 1.85 | 5.36 | 5.12 | 8.20 | 11.50 | 6.97 | 9.04 | 9.58 | 5.53 | 4.43 | 3.00 | 11.50 |
| Year Highest Occurred | 1996 | 1971 | 1977 | 1999 | 2000 | 1971 | 1993 | 1993 | 1986 | 1984 | 1975 | 1982 | 1971 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.06 | 0.04 | 0.74 | 0.73 | 0.48 | 1.04 | 0.48 | 0.25 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1974 | 1996 | 1994 | 1987 | 1976 | 1988 | 1975 | 1971 | 2000 | 1978 | 1976 | 1991 | 1974 |
| Heating Degree Days (F) | 1628. | 1297. | 1045. | 593. | 251. | 55. | 22. | 36. | 170. | 521. | 996. | 1458. | 8072. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 60. | 151. | 251. | 190. | 37. | 0. | 0. | 0. | 693. |