| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.6 | 42.6 | 50.5 | 58.7 | 66.6 | 76.0 | 83.1 | 83.1 | 73.8 | 62.4 | 46.0 | 37.4 | 59.7 |
| Highest Mean Max. Temperature (F) | 44.2 | 52.9 | 58.8 | 69.8 | 75.0 | 82.7 | 86.8 | 86.9 | 80.8 | 71.4 | 57.6 | 45.0 | 86.9 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1988 | 1989 | 1994 | 1990 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 24.5 | 33.5 | 44.2 | 49.1 | 58.9 | 69.0 | 74.5 | 77.4 | 65.3 | 54.2 | 37.3 | 29.1 | 24.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1998 | 1993 | 1976 | 1986 | 1984 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 27.9 | 32.9 | 39.4 | 45.8 | 53.4 | 61.8 | 68.6 | 68.3 | 59.3 | 49.1 | 36.3 | 28.4 | 47.6 |
| Highest Mean Temperature (F) | 36.2 | 40.5 | 45.6 | 52.0 | 59.6 | 66.9 | 72.9 | 71.8 | 65.8 | 55.2 | 45.4 | 34.0 | 72.9 |
| Year Highest Occurred | 1998 | 1992 | 1986 | 1992 | 1992 | 1986 | 1985 | 2000 | 1990 | 1988 | 1999 | 1977 | 1985 |
| Lowest Mean Temperature (F) | 15.9 | 23.9 | 33.1 | 38.1 | 48.4 | 57.3 | 61.0 | 62.8 | 53.2 | 44.2 | 28.8 | 18.2 | 15.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1998 | 1993 | 1976 | 1986 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 19.1 | 23.2 | 28.2 | 32.9 | 40.1 | 47.5 | 54.1 | 53.5 | 44.7 | 35.8 | 26.6 | 19.4 | 35.4 |
| Highest Mean Min. Temperature (F) | 28.2 | 29.8 | 33.6 | 37.9 | 44.8 | 52.6 | 59.5 | 58.1 | 51.7 | 39.9 | 33.1 | 26.3 | 59.5 |
| Year Highest Occurred | 1998 | 1992 | 1986 | 1990 | 1993 | 1986 | 1985 | 2000 | 1998 | 1992 | 1999 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | 7.3 | 14.3 | 22.0 | 27.1 | 35.8 | 43.7 | 47.6 | 48.3 | 39.6 | 32.6 | 18.1 | 7.2 | 7.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1975 | 1975 | 1993 | 1976 | 1971 | 1971 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.82 | 0.64 | 1.09 | 1.11 | 1.71 | 1.19 | 0.78 | 0.73 | 0.96 | 0.80 | 0.79 | 0.70 | 11.32 |
| Highest Precipitation (in.) | 2.70 | 2.42 | 2.68 | 3.67 | 3.66 | 3.52 | 2.03 | 2.55 | 2.84 | 2.19 | 2.01 | 2.56 | 3.67 |
| Year Highest Occurred | 1980 | 1986 | 1995 | 1999 | 1980 | 1995 | 1975 | 1983 | 1997 | 1972 | 1971 | 1996 | 1999 |
| Lowest Precipitation (in.) | 0.11 | 0.11 | 0.24 | 0.12 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1988 | 1997 | 1980 | 1974 | 1994 | 1990 | 1988 | 1999 | 1988 | 1993 | 1989 | 1994 |
| Heating Degree Days (F) | 1151. | 899. | 794. | 577. | 365. | 145. | 33. | 46. | 207. | 494. | 860. | 1135. | 6706. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 48. | 145. | 148. | 35. | 0. | 0. | 0. | 380. |