| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.6 | 41.1 | 48.5 | 55.9 | 63.7 | 72.8 | 81.9 | 83.2 | 74.3 | 61.8 | 43.3 | 35.4 | 58.1 |
| Highest Mean Max. Temperature (F) | 41.7 | 51.4 | 58.9 | 65.6 | 74.3 | 80.1 | 89.8 | 90.0 | 83.5 | 74.6 | 51.0 | 41.4 | 90.0 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1987 | 1992 | 1987 | 1998 | 2000 | 1994 | 1988 | 1976 | 1975 | 2000 |
| Lowest Mean Max. Temperature (F) | 28.2 | 31.6 | 40.8 | 45.0 | 53.1 | 65.1 | 72.8 | 73.8 | 62.8 | 51.7 | 36.3 | 23.3 | 23.3 |
| Year Lowest Occurred | 1979 | 1993 | 1984 | 1984 | 1991 | 1991 | 1993 | 1976 | 1986 | 1984 | 1994 | 1983 | 1983 |
| Mean Temperature (F) | 26.2 | 30.7 | 36.4 | 41.6 | 47.9 | 54.9 | 61.8 | 62.0 | 54.1 | 45.0 | 33.6 | 26.8 | 43.4 |
| Highest Mean Temperature (F) | 32.3 | 38.4 | 42.7 | 47.8 | 53.7 | 60.6 | 68.7 | 65.9 | 61.2 | 54.0 | 40.0 | 32.6 | 68.7 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1987 | 1992 | 1987 | 1998 | 1971 | 1994 | 1988 | 1999 | 1993 | 1998 |
| Lowest Mean Temperature (F) | 14.4 | 20.1 | 30.4 | 32.7 | 41.4 | 50.2 | 56.1 | 57.1 | 47.1 | 39.9 | 25.4 | 17.9 | 14.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1991 | 1986 | 1980 | 1986 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 16.8 | 20.2 | 24.2 | 27.2 | 32.1 | 37.0 | 41.7 | 40.8 | 33.9 | 28.2 | 23.9 | 18.2 | 28.7 |
| Highest Mean Min. Temperature (F) | 24.5 | 28.5 | 28.6 | 32.0 | 36.4 | 41.2 | 47.5 | 45.2 | 40.3 | 34.5 | 31.7 | 27.6 | 47.5 |
| Year Highest Occurred | 1999 | 1991 | 1991 | 1994 | 1987 | 1992 | 1998 | 1992 | 1997 | 1979 | 1999 | 1993 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.6 | 7.9 | 16.4 | 19.6 | 27.2 | 33.3 | 35.5 | 34.8 | 28.6 | 22.7 | 12.6 | 8.1 | 0.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1984 | 1986 | 1980 | 2000 | 1976 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 2.13 | 1.62 | 1.40 | 1.11 | 1.29 | 1.03 | 0.82 | 0.82 | 0.85 | 1.16 | 2.18 | 2.10 | 16.51 |
| Highest Precipitation (in.) | 6.75 | 4.50 | 3.80 | 3.12 | 3.32 | 2.95 | 4.59 | 5.07 | 3.53 | 2.65 | 5.38 | 6.84 | 6.84 |
| Year Highest Occurred | 1998 | 1996 | 1972 | 1978 | 1977 | 1978 | 1983 | 1976 | 1982 | 1979 | 1973 | 1981 | 1981 |
| Lowest Precipitation (in.) | 0.28 | 0.00 | 0.00 | 0.00 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.42 | 0.16 | 0.00 |
| Year Lowest Occurred | 1992 | 1998 | 1997 | 1985 | 1997 | 1973 | 1994 | 2000 | 1999 | 1987 | 1976 | 1976 | 1998 |
| Heating Degree Days (F) | 1204. | 961. | 889. | 704. | 530. | 309. | 150. | 142. | 341. | 621. | 942. | 1185. | 7978. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 50. | 48. | 14. | 0. | 0. | 0. | 119. |