| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.4 | 43.0 | 51.0 | 59.4 | 67.3 | 75.5 | 85.1 | 86.1 | 77.0 | 63.8 | 45.4 | 36.3 | 60.5 |
| Highest Mean Max. Temperature (F) | 43.4 | 50.5 | 60.5 | 69.3 | 76.1 | 83.0 | 91.6 | 93.3 | 86.3 | 73.6 | 53.1 | 42.5 | 93.3 |
| Year Highest Occurred | 1994 | 1977 | 1992 | 1987 | 1992 | 1974 | 1996 | 1971 | 1990 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 26.1 | 33.0 | 43.0 | 49.5 | 61.4 | 69.6 | 73.6 | 78.0 | 66.4 | 55.1 | 33.0 | 28.6 | 26.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1975 | 1993 | 1976 | 1985 | 1984 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 26.6 | 31.9 | 38.0 | 44.7 | 51.4 | 58.1 | 64.3 | 64.2 | 56.2 | 46.2 | 34.9 | 26.8 | 45.3 |
| Highest Mean Temperature (F) | 33.4 | 38.2 | 43.0 | 51.0 | 56.3 | 62.9 | 70.9 | 68.8 | 63.2 | 53.4 | 42.7 | 32.5 | 70.9 |
| Year Highest Occurred | 1994 | 1992 | 1986 | 1987 | 1993 | 1974 | 1998 | 1971 | 1998 | 1988 | 1999 | 1973 | 1998 |
| Lowest Mean Temperature (F) | 13.8 | 20.6 | 31.8 | 38.3 | 47.5 | 54.6 | 57.0 | 58.7 | 50.9 | 41.4 | 24.0 | 17.7 | 13.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1982 | 1991 | 1993 | 1980 | 1971 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 16.7 | 20.7 | 25.0 | 29.9 | 35.4 | 40.7 | 43.4 | 42.3 | 35.3 | 28.6 | 24.4 | 17.2 | 30.0 |
| Highest Mean Min. Temperature (F) | 25.1 | 27.4 | 29.5 | 33.1 | 39.1 | 43.8 | 51.1 | 48.0 | 42.0 | 33.3 | 32.3 | 25.0 | 51.1 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1994 | 1980 | 1988 | 1998 | 1999 | 1998 | 1988 | 1999 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 1.5 | 8.2 | 19.1 | 26.7 | 31.1 | 37.5 | 38.8 | 37.3 | 29.8 | 23.2 | 15.0 | 4.8 | 1.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1982 | 1994 | 1981 | 1980 | 1999 | 1987 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 1.70 | 1.47 | 1.66 | 1.94 | 2.25 | 1.95 | 1.30 | 1.15 | 1.13 | 1.19 | 2.16 | 1.90 | 19.80 |
| Highest Precipitation (in.) | 3.43 | 3.46 | 2.90 | 3.77 | 4.61 | 3.77 | 3.79 | 5.78 | 2.67 | 3.43 | 4.81 | 5.49 | 5.78 |
| Year Highest Occurred | 1975 | 1999 | 2000 | 1978 | 1991 | 1980 | 1997 | 1989 | 1977 | 1975 | 1991 | 1996 | 1989 |
| Lowest Precipitation (in.) | 0.30 | 0.31 | 0.47 | 0.14 | 0.69 | 0.54 | 0.08 | 0.00 | 0.00 | 0.00 | 0.65 | 0.15 | 0.00 |
| Year Lowest Occurred | 1977 | 1973 | 1994 | 1977 | 1983 | 1978 | 1973 | 1998 | 1999 | 1987 | 1993 | 1989 | 1998 |
| Heating Degree Days (F) | 1192. | 929. | 837. | 611. | 423. | 218. | 101. | 99. | 282. | 583. | 903. | 1186. | 7364. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 11. | 79. | 74. | 16. | 0. | 0. | 0. | 180. |