| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.5 | 37.4 | 48.7 | 59.0 | 67.8 | 77.3 | 85.0 | 84.8 | 74.8 | 61.9 | 43.9 | 32.0 | 58.6 |
| Highest Mean Max. Temperature (F) | 39.2 | 46.7 | 58.6 | 67.2 | 75.5 | 85.7 | 90.7 | 89.4 | 82.6 | 71.2 | 55.6 | 41.1 | 90.7 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1992 | 1988 | 1985 | 1981 | 1979 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 20.3 | 25.6 | 37.4 | 48.5 | 61.5 | 70.1 | 73.1 | 77.9 | 67.1 | 55.1 | 35.2 | 21.7 | 20.3 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1995 | 1998 | 1993 | 1993 | 1986 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 22.3 | 28.0 | 37.1 | 45.2 | 53.2 | 61.1 | 67.5 | 66.8 | 57.7 | 46.8 | 33.4 | 23.1 | 45.2 |
| Highest Mean Temperature (F) | 31.3 | 35.7 | 44.5 | 51.0 | 59.0 | 67.6 | 71.8 | 70.1 | 63.4 | 53.4 | 40.5 | 31.8 | 71.8 |
| Year Highest Occurred | 1998 | 1992 | 1986 | 1992 | 1992 | 1988 | 1985 | 2000 | 1998 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Temperature (F) | 10.4 | 14.4 | 24.8 | 37.8 | 49.1 | 56.9 | 59.7 | 62.1 | 53.5 | 42.1 | 24.2 | 11.0 | 10.4 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1975 | 1998 | 1993 | 1993 | 1986 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 14.0 | 18.6 | 25.5 | 31.4 | 38.5 | 44.9 | 50.0 | 48.7 | 40.5 | 31.6 | 22.9 | 14.2 | 31.7 |
| Highest Mean Min. Temperature (F) | 24.4 | 26.7 | 31.6 | 35.3 | 42.4 | 49.5 | 54.4 | 54.7 | 47.8 | 36.6 | 29.9 | 23.2 | 54.7 |
| Year Highest Occurred | 1998 | 2000 | 1986 | 2000 | 1992 | 1988 | 1975 | 1983 | 1998 | 2000 | 1998 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 0.5 | 3.3 | 12.1 | 25.6 | 35.1 | 41.0 | 46.3 | 44.9 | 36.5 | 28.7 | 13.3 | 0.4 | 0.4 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1982 | 1975 | 1976 | 1993 | 1975 | 1971 | 1976 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.86 | 0.73 | 0.89 | 0.93 | 1.33 | 0.87 | 0.53 | 0.45 | 0.70 | 0.84 | 0.81 | 0.75 | 9.69 |
| Highest Precipitation (in.) | 2.29 | 2.08 | 3.21 | 2.34 | 3.92 | 4.04 | 2.51 | 1.72 | 2.64 | 2.40 | 2.16 | 2.61 | 4.04 |
| Year Highest Occurred | 1971 | 1986 | 1995 | 2000 | 1981 | 1995 | 1973 | 1972 | 1998 | 1971 | 1983 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1993 | 1997 | 1988 | 1985 | 1989 | 1996 | 1999 | 1992 | 1999 | 1996 | 1999 | 1998 | 1993 |
| Heating Degree Days (F) | 1326. | 1036. | 866. | 594. | 369. | 157. | 49. | 51. | 237. | 566. | 948. | 1299. | 7498. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 41. | 126. | 104. | 16. | 0. | 0. | 0. | 288. |