| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.1 | 46.9 | 54.4 | 61.4 | 69.4 | 77.5 | 86.2 | 85.9 | 76.9 | 64.9 | 50.2 | 42.1 | 63.2 |
| Highest Mean Max. Temperature (F) | 51.1 | 55.3 | 58.7 | 68.0 | 76.4 | 84.6 | 92.7 | 91.3 | 83.2 | 73.6 | 56.3 | 49.4 | 92.7 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1990 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 26.0 | 34.9 | 49.3 | 54.9 | 64.5 | 71.9 | 77.0 | 80.5 | 70.2 | 60.2 | 38.1 | 28.6 | 26.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1996 | 1991 | 1993 | 1976 | 1986 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 33.5 | 37.7 | 43.8 | 49.2 | 56.2 | 63.1 | 69.7 | 69.5 | 61.5 | 51.6 | 40.8 | 34.0 | 50.9 |
| Highest Mean Temperature (F) | 41.3 | 45.2 | 47.2 | 53.8 | 60.9 | 68.7 | 75.3 | 73.7 | 66.5 | 58.8 | 46.9 | 40.3 | 75.3 |
| Year Highest Occurred | 1999 | 1991 | 1992 | 1990 | 1993 | 1992 | 1998 | 1971 | 1998 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 16.5 | 25.6 | 39.7 | 43.8 | 52.4 | 59.2 | 63.1 | 65.3 | 55.8 | 47.1 | 28.7 | 22.0 | 16.5 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1991 | 1993 | 1985 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 24.8 | 28.5 | 33.2 | 37.0 | 43.0 | 48.6 | 53.2 | 53.0 | 46.1 | 38.2 | 31.4 | 25.9 | 38.6 |
| Highest Mean Min. Temperature (F) | 32.8 | 35.0 | 38.0 | 40.7 | 47.4 | 53.0 | 58.5 | 58.2 | 50.8 | 44.0 | 37.5 | 31.4 | 58.5 |
| Year Highest Occurred | 1999 | 1991 | 1983 | 1994 | 1993 | 1992 | 1998 | 1977 | 1998 | 1988 | 1999 | 1999 | 1998 |
| Lowest Mean Min. Temperature (F) | 7.1 | 16.3 | 29.4 | 32.6 | 39.8 | 44.2 | 48.0 | 48.3 | 41.2 | 34.1 | 19.2 | 14.9 | 7.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1986 | 1985 | 1985 | 1984 | 1985 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.42 | 1.23 | 1.60 | 1.40 | 1.67 | 1.09 | 0.35 | 0.54 | 0.68 | 1.12 | 1.77 | 1.33 | 14.20 |
| Highest Precipitation (in.) | 2.90 | 2.69 | 3.64 | 4.65 | 3.45 | 2.75 | 1.39 | 2.91 | 2.24 | 2.95 | 3.94 | 3.53 | 4.65 |
| Year Highest Occurred | 1998 | 2000 | 1984 | 1988 | 1994 | 1997 | 1992 | 1978 | 1973 | 1982 | 1973 | 1973 | 1988 |
| Lowest Precipitation (in.) | 0.36 | 0.08 | 0.81 | 0.07 | 0.38 | 0.20 | 0.00 | 0.00 | 0.00 | 0.02 | 0.24 | 0.32 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1992 | 1977 | 1997 | 1974 | 1999 | 2000 | 1993 | 1988 | 1982 | 1997 | 1999 |
| Heating Degree Days (F) | 978. | 765. | 656. | 475. | 280. | 117. | 34. | 30. | 160. | 418. | 725. | 961. | 5599. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 58. | 180. | 168. | 55. | 1. | 0. | 0. | 468. |