| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.2 | 42.4 | 51.9 | 60.2 | 68.3 | 76.6 | 85.4 | 85.7 | 76.7 | 63.1 | 45.1 | 35.9 | 60.5 |
| Highest Mean Max. Temperature (F) | 41.8 | 51.0 | 61.3 | 69.3 | 76.6 | 84.1 | 91.6 | 92.4 | 85.8 | 73.7 | 51.0 | 41.5 | 92.4 |
| Year Highest Occurred | 1999 | 1992 | 1992 | 1987 | 1992 | 1974 | 1985 | 1971 | 1990 | 1988 | 1999 | 1977 | 1971 |
| Lowest Mean Max. Temperature (F) | 24.5 | 28.3 | 45.4 | 52.0 | 62.6 | 71.2 | 74.0 | 78.1 | 67.7 | 57.5 | 34.5 | 23.0 | 23.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1991 | 1993 | 1976 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 27.0 | 32.3 | 39.6 | 46.0 | 52.9 | 59.8 | 65.7 | 65.2 | 57.0 | 46.7 | 35.6 | 27.7 | 46.3 |
| Highest Mean Temperature (F) | 33.8 | 39.7 | 44.5 | 51.4 | 58.3 | 64.1 | 70.6 | 69.1 | 63.5 | 54.3 | 41.4 | 34.4 | 70.6 |
| Year Highest Occurred | 1999 | 1992 | 1992 | 1987 | 1993 | 1977 | 1998 | 1971 | 1998 | 1988 | 1995 | 1973 | 1998 |
| Lowest Mean Temperature (F) | 14.5 | 18.5 | 33.8 | 39.5 | 49.4 | 56.7 | 59.3 | 60.5 | 51.7 | 43.0 | 25.3 | 13.0 | 13.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1993 | 1980 | 1971 | 1971 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 18.7 | 22.2 | 27.3 | 31.7 | 37.5 | 42.9 | 46.0 | 44.7 | 37.3 | 30.2 | 26.1 | 19.4 | 32.0 |
| Highest Mean Min. Temperature (F) | 26.8 | 28.9 | 30.5 | 35.3 | 41.1 | 46.8 | 51.0 | 50.5 | 44.7 | 34.8 | 32.2 | 28.0 | 51.0 |
| Year Highest Occurred | 1981 | 1980 | 1986 | 1994 | 1993 | 1982 | 1998 | 1999 | 1998 | 1988 | 1995 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 4.4 | 8.6 | 21.0 | 26.9 | 34.8 | 40.3 | 42.4 | 40.4 | 33.1 | 23.5 | 16.1 | 3.0 | 3.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1975 | 1985 | 1986 | 1987 | 1971 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.84 | 1.44 | 1.30 | 1.39 | 1.76 | 1.44 | 0.94 | 0.89 | 1.09 | 1.33 | 2.07 | 1.91 | 17.40 |
| Highest Precipitation (in.) | 3.58 | 3.91 | 3.05 | 3.74 | 3.50 | 3.93 | 3.27 | 4.34 | 2.72 | 4.32 | 4.40 | 4.25 | 4.40 |
| Year Highest Occurred | 1975 | 1986 | 1972 | 1978 | 1991 | 1981 | 1982 | 1989 | 1986 | 1975 | 1991 | 1977 | 1991 |
| Lowest Precipitation (in.) | 0.37 | 0.35 | 0.33 | 0.07 | 0.34 | 0.23 | 0.05 | 0.00 | 0.00 | 0.00 | 0.34 | 0.25 | 0.00 |
| Year Lowest Occurred | 1981 | 1991 | 1992 | 1977 | 1997 | 1986 | 1973 | 2000 | 1974 | 1987 | 1993 | 1976 | 2000 |
| Heating Degree Days (F) | 1180. | 915. | 787. | 572. | 375. | 173. | 68. | 79. | 259. | 568. | 883. | 1158. | 7017. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 16. | 89. | 85. | 18. | 0. | 0. | 0. | 208. |