| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.9 | 41.0 | 50.9 | 59.0 | 69.5 | 79.6 | 87.1 | 86.5 | 75.0 | 62.3 | 45.1 | 36.4 | 60.5 |
| Highest Mean Max. Temperature (F) | 48.5 | 53.2 | 60.2 | 70.0 | 77.2 | 92.3 | 94.8 | 93.9 | 84.0 | 69.8 | 56.4 | 47.2 | 94.8 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1987 | 1994 | 1988 | 2000 | 2000 | 1998 | 1988 | 1999 | 1979 | 2000 |
| Lowest Mean Max. Temperature (F) | 16.2 | 22.5 | 38.6 | 49.2 | 61.4 | 67.6 | 75.2 | 79.3 | 65.7 | 56.7 | 27.1 | 19.5 | 16.2 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1975 | 1996 | 1998 | 1993 | 1993 | 1986 | 1971 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 21.4 | 27.5 | 36.5 | 44.2 | 54.6 | 63.7 | 69.8 | 68.7 | 57.5 | 46.5 | 32.2 | 24.1 | 45.6 |
| Highest Mean Temperature (F) | 32.8 | 39.1 | 44.9 | 51.0 | 59.2 | 73.7 | 74.9 | 73.8 | 66.6 | 51.1 | 41.8 | 32.9 | 74.9 |
| Year Highest Occurred | 1981 | 1999 | 1986 | 1987 | 1994 | 1988 | 2000 | 1971 | 1998 | 1988 | 1999 | 1997 | 2000 |
| Lowest Mean Temperature (F) | 4.3 | 10.7 | 27.3 | 35.4 | 49.6 | 56.3 | 61.5 | 63.9 | 52.0 | 41.5 | 16.0 | 7.6 | 4.3 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1975 | 1996 | 1998 | 1993 | 1993 | 1984 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 8.9 | 13.9 | 22.0 | 29.3 | 39.6 | 47.7 | 52.5 | 50.9 | 40.0 | 30.6 | 19.2 | 11.7 | 30.5 |
| Highest Mean Min. Temperature (F) | 20.6 | 27.0 | 29.5 | 32.7 | 43.9 | 55.2 | 57.0 | 55.7 | 49.2 | 34.1 | 27.2 | 25.0 | 57.0 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1999 | 1993 | 1988 | 1989 | 1983 | 1998 | 1983 | 1999 | 1997 | 1989 |
| Lowest Mean Min. Temperature (F) | -7.7 | -1.2 | 15.9 | 21.6 | 35.6 | 44.9 | 47.7 | 47.3 | 35.4 | 24.6 | 4.9 | -4.3 | -7.7 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1975 | 1974 | 1998 | 1993 | 1974 | 1974 | 1984 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.77 | 0.57 | 1.04 | 1.69 | 2.43 | 1.63 | 0.85 | 0.73 | 1.23 | 1.29 | 0.68 | 0.57 | 13.48 |
| Highest Precipitation (in.) | 2.42 | 1.60 | 3.16 | 3.98 | 6.08 | 4.54 | 3.16 | 1.94 | 4.74 | 3.53 | 2.17 | 1.47 | 6.08 |
| Year Highest Occurred | 1972 | 1971 | 1980 | 1991 | 1978 | 1992 | 1987 | 1972 | 1978 | 1971 | 1975 | 1989 | 1978 |
| Lowest Precipitation (in.) | 0.18 | 0.00 | 0.10 | 0.29 | 0.66 | 0.28 | 0.12 | 0.04 | 0.00 | 0.03 | 0.00 | 0.03 | 0.00 |
| Year Lowest Occurred | 1988 | 1992 | 1999 | 1977 | 1973 | 1977 | 1977 | 1988 | 1979 | 1987 | 2000 | 1999 | 1992 |
| Heating Degree Days (F) | 1352. | 1052. | 886. | 625. | 334. | 119. | 36. | 51. | 259. | 575. | 985. | 1270. | 7544. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 79. | 184. | 165. | 34. | 0. | 0. | 0. | 470. |