| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.4 | 45.2 | 49.2 | 55.0 | 64.7 | 76.1 | 81.6 | 79.8 | 72.4 | 62.7 | 49.1 | 42.5 | 60.1 |
| Highest Mean Max. Temperature (F) | 51.7 | 50.4 | 55.6 | 63.0 | 73.1 | 82.5 | 85.0 | 83.3 | 79.8 | 68.2 | 56.6 | 52.0 | 85.0 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 1992 | 1996 | 1994 | 1996 | 1996 | 1998 | 1975 | 1999 | 1980 | 1996 |
| Lowest Mean Max. Temperature (F) | 29.5 | 37.0 | 43.7 | 47.0 | 58.1 | 70.0 | 77.2 | 76.2 | 66.7 | 52.1 | 39.3 | 31.9 | 29.5 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1983 | 1995 | 1983 | 1971 | 1978 | 1999 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 24.0 | 26.6 | 32.9 | 39.5 | 48.3 | 58.2 | 63.3 | 61.5 | 53.9 | 43.9 | 32.1 | 25.0 | 42.4 |
| Highest Mean Temperature (F) | 33.4 | 32.9 | 38.6 | 47.2 | 53.5 | 63.6 | 66.6 | 66.8 | 58.9 | 47.6 | 38.9 | 34.6 | 66.8 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1996 | 1981 | 1983 | 1983 | 1983 | 1983 | 1998 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 10.5 | 18.3 | 27.5 | 33.9 | 40.8 | 53.4 | 60.2 | 57.7 | 48.9 | 37.8 | 23.1 | 14.9 | 10.5 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1997 | 1995 | 1998 | 1994 | 1992 | 1993 | 1993 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 5.5 | 8.0 | 16.5 | 24.0 | 31.9 | 40.3 | 45.0 | 43.2 | 35.4 | 25.0 | 15.0 | 7.4 | 24.8 |
| Highest Mean Min. Temperature (F) | 16.4 | 16.4 | 23.4 | 31.8 | 37.3 | 46.2 | 50.5 | 50.9 | 42.2 | 31.6 | 24.0 | 17.5 | 50.9 |
| Year Highest Occurred | 1999 | 1999 | 1982 | 1981 | 1981 | 1981 | 1983 | 1983 | 1982 | 1972 | 1998 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | -8.4 | -0.4 | 6.2 | 15.6 | 23.5 | 29.8 | 38.0 | 35.1 | 27.1 | 18.0 | 5.4 | -3.7 | -8.4 |
| Year Lowest Occurred | 1979 | 1989 | 1998 | 1997 | 1995 | 1998 | 1994 | 1998 | 1995 | 1994 | 1997 | 1997 | 1979 |
| Mean Precipitation (in.) | 0.42 | 0.56 | 1.41 | 1.78 | 2.04 | 1.92 | 2.57 | 2.75 | 1.20 | 1.08 | 0.86 | 0.66 | 17.25 |
| Highest Precipitation (in.) | 1.06 | 1.64 | 4.20 | 4.34 | 5.36 | 4.72 | 5.71 | 5.95 | 3.07 | 3.84 | 2.62 | 2.98 | 5.95 |
| Year Highest Occurred | 2000 | 1987 | 1990 | 1973 | 1973 | 1992 | 1971 | 1997 | 1990 | 1984 | 1972 | 1973 | 1997 |
| Lowest Precipitation (in.) | 0.07 | 0.00 | 0.21 | 0.32 | 0.15 | 0.14 | 0.68 | 0.38 | 0.06 | 0.04 | 0.14 | 0.00 | 0.00 |
| Year Lowest Occurred | 1981 | 1973 | 1989 | 1981 | 1974 | 1971 | 1993 | 1973 | 1992 | 1983 | 1984 | 1980 | 1973 |
| Heating Degree Days (F) | 1272. | 1075. | 997. | 764. | 518. | 221. | 90. | 137. | 339. | 655. | 990. | 1241. | 8299. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 17. | 38. | 28. | 5. | 0. | 0. | 0. | 88. |