| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.6 | 45.1 | 54.3 | 62.2 | 72.7 | 84.7 | 92.4 | 90.5 | 80.5 | 66.8 | 49.9 | 39.6 | 64.8 |
| Highest Mean Max. Temperature (F) | 47.2 | 56.1 | 62.5 | 73.1 | 79.9 | 90.9 | 97.4 | 97.2 | 86.6 | 75.7 | 62.0 | 51.7 | 97.4 |
| Year Highest Occurred | 1997 | 1995 | 1997 | 1992 | 1997 | 1994 | 1989 | 1997 | 1990 | 1988 | 1999 | 1996 | 1989 |
| Lowest Mean Max. Temperature (F) | 26.2 | 36.1 | 46.8 | 51.9 | 66.1 | 77.0 | 87.6 | 87.0 | 72.8 | 57.8 | 41.7 | 28.5 | 26.2 |
| Year Lowest Occurred | 1984 | 1993 | 1973 | 1975 | 1995 | 1995 | 1987 | 1976 | 1986 | 1984 | 1994 | 1985 | 1984 |
| Mean Temperature (F) | 29.6 | 35.2 | 43.1 | 49.7 | 59.3 | 70.1 | 78.2 | 76.3 | 66.5 | 54.0 | 39.5 | 30.1 | 52.6 |
| Highest Mean Temperature (F) | 39.0 | 43.1 | 48.8 | 57.5 | 64.7 | 75.0 | 81.8 | 80.2 | 72.1 | 62.1 | 47.5 | 38.1 | 81.8 |
| Year Highest Occurred | 1997 | 1995 | 1989 | 1992 | 1997 | 1994 | 1988 | 1997 | 1990 | 1988 | 1999 | 1996 | 1988 |
| Lowest Mean Temperature (F) | 19.5 | 26.0 | 36.4 | 42.5 | 53.3 | 62.2 | 73.2 | 72.5 | 61.0 | 47.3 | 31.5 | 21.4 | 19.5 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1975 | 1995 | 1993 | 1987 | 1986 | 1984 | 1994 | 1990 | 1984 |
| Mean Min. Temperature (F) | 20.6 | 25.2 | 31.9 | 37.2 | 45.8 | 55.5 | 63.9 | 62.1 | 52.5 | 41.1 | 29.1 | 20.5 | 40.5 |
| Highest Mean Min. Temperature (F) | 30.7 | 32.0 | 37.4 | 43.0 | 50.4 | 61.4 | 67.4 | 65.4 | 57.5 | 48.5 | 35.2 | 28.8 | 67.4 |
| Year Highest Occurred | 1997 | 1986 | 1978 | 1990 | 1994 | 1997 | 1981 | 2000 | 1990 | 1988 | 1996 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 9.7 | 15.1 | 24.3 | 32.0 | 40.0 | 47.1 | 57.5 | 57.6 | 47.1 | 36.2 | 21.3 | 10.8 | 9.7 |
| Year Lowest Occurred | 1989 | 1984 | 1976 | 1999 | 1975 | 1998 | 1993 | 1987 | 1971 | 1982 | 1994 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.24 | 1.23 | 1.55 | 1.54 | 1.58 | 0.79 | 0.50 | 0.77 | 1.07 | 1.60 | 1.28 | 1.06 | 14.21 |
| Highest Precipitation (in.) | 3.60 | 2.92 | 3.39 | 3.09 | 4.25 | 2.97 | 2.44 | 2.24 | 5.01 | 4.07 | 3.37 | 2.92 | 5.01 |
| Year Highest Occurred | 1993 | 2000 | 1980 | 1999 | 1975 | 1998 | 1984 | 1997 | 1982 | 1981 | 1994 | 1972 | 1982 |
| Lowest Precipitation (in.) | 0.21 | 0.10 | 0.00 | 0.09 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.05 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1992 | 1974 | 1996 | 2000 | 1996 | 1979 | 1995 | 1999 | 1976 | 1997 |
| Heating Degree Days (F) | 1096. | 836. | 679. | 467. | 223. | 53. | 1. | 2. | 71. | 357. | 765. | 1084. | 5634. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 46. | 206. | 409. | 352. | 121. | 13. | 0. | 0. | 1153. |