| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.1 | 40.2 | 49.6 | 58.7 | 68.3 | 78.4 | 81.7 | 78.9 | 72.5 | 61.7 | 45.7 | 34.8 | 58.6 |
| Highest Mean Max. Temperature (F) | 44.6 | 51.3 | 57.5 | 65.5 | 76.0 | 82.8 | 85.5 | 82.2 | 76.7 | 66.7 | 55.6 | 48.0 | 85.5 |
| Year Highest Occurred | 1999 | 1995 | 1989 | 1989 | 1996 | 1980 | 1980 | 2000 | 2000 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 19.3 | 29.7 | 41.7 | 51.8 | 63.1 | 72.9 | 78.5 | 75.2 | 68.0 | 53.3 | 34.0 | 20.2 | 19.3 |
| Year Lowest Occurred | 1992 | 1984 | 1984 | 1983 | 1983 | 1983 | 1990 | 1993 | 1986 | 1984 | 1972 | 1991 | 1992 |
| Mean Temperature (F) | 14.7 | 22.5 | 32.7 | 40.8 | 50.4 | 59.4 | 64.1 | 62.1 | 54.5 | 42.8 | 28.4 | 17.1 | 40.8 |
| Highest Mean Temperature (F) | 25.6 | 33.3 | 37.3 | 47.0 | 55.2 | 62.4 | 66.7 | 64.7 | 57.9 | 45.9 | 34.1 | 27.4 | 66.7 |
| Year Highest Occurred | 1999 | 1995 | 1999 | 1992 | 1996 | 1981 | 1980 | 1995 | 1998 | 1992 | 1998 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 0.6 | 9.4 | 26.1 | 35.5 | 46.2 | 56.0 | 62.1 | 58.3 | 51.5 | 39.1 | 17.8 | 4.9 | 0.6 |
| Year Lowest Occurred | 1984 | 1979 | 1984 | 1983 | 1983 | 1983 | 1995 | 1974 | 1985 | 1976 | 1972 | 1991 | 1984 |
| Mean Min. Temperature (F) | -3.7 | 4.7 | 15.8 | 22.8 | 32.4 | 40.4 | 46.4 | 45.2 | 36.5 | 23.9 | 11.1 | -0.7 | 22.9 |
| Highest Mean Min. Temperature (F) | 7.6 | 15.2 | 20.1 | 28.7 | 37.4 | 43.4 | 49.6 | 49.1 | 41.5 | 31.5 | 18.2 | 6.9 | 49.6 |
| Year Highest Occurred | 1995 | 1995 | 1990 | 1992 | 1992 | 1981 | 1998 | 1982 | 1997 | 1972 | 1998 | 1994 | 1998 |
| Lowest Mean Min. Temperature (F) | -18.7 | -11.0 | 8.9 | 18.8 | 28.1 | 37.5 | 43.3 | 39.9 | 31.5 | 19.8 | 1.7 | -10.5 | -18.7 |
| Year Lowest Occurred | 1984 | 1979 | 1971 | 1974 | 1971 | 1982 | 1987 | 1978 | 1987 | 1980 | 1972 | 1991 | 1984 |
| Mean Precipitation (in.) | 0.25 | 0.21 | 0.46 | 0.54 | 0.70 | 0.59 | 0.94 | 1.19 | 0.89 | 0.67 | 0.48 | 0.33 | 7.25 |
| Highest Precipitation (in.) | 0.75 | 0.77 | 1.62 | 1.72 | 1.85 | 1.26 | 2.59 | 5.40 | 1.85 | 2.16 | 1.23 | 0.99 | 5.40 |
| Year Highest Occurred | 1979 | 1997 | 1992 | 1990 | 1973 | 1995 | 1971 | 1993 | 1982 | 1972 | 1991 | 1983 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.03 | 0.00 | 0.01 | 0.00 | 0.02 | 0.21 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1971 | 1972 | 1998 | 1980 | 1994 | 1980 | 1978 | 1995 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 1551. | 1189. | 985. | 719. | 451. | 169. | 47. | 91. | 302. | 675. | 1082. | 1475. | 8736. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 27. | 10. | 0. | 0. | 0. | 0. | 44. |