| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.7 | 45.1 | 53.5 | 61.6 | 71.5 | 82.8 | 90.9 | 89.1 | 78.4 | 65.4 | 49.5 | 39.7 | 63.9 |
| Highest Mean Max. Temperature (F) | 46.6 | 55.4 | 60.0 | 70.2 | 77.4 | 88.7 | 95.5 | 92.7 | 84.3 | 73.8 | 60.1 | 47.1 | 95.5 |
| Year Highest Occurred | 1998 | 1995 | 1997 | 1987 | 1992 | 1988 | 2000 | 1994 | 1990 | 1988 | 1999 | 1977 | 2000 |
| Lowest Mean Max. Temperature (F) | 27.8 | 33.6 | 46.7 | 51.1 | 64.8 | 75.6 | 83.8 | 86.3 | 70.8 | 57.1 | 40.1 | 29.3 | 27.8 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1983 | 1998 | 1993 | 1993 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 30.4 | 35.8 | 43.6 | 51.1 | 59.9 | 70.3 | 78.5 | 76.9 | 66.6 | 54.6 | 40.5 | 31.3 | 53.3 |
| Highest Mean Temperature (F) | 38.4 | 45.8 | 49.5 | 59.7 | 65.7 | 75.7 | 82.4 | 80.5 | 72.1 | 62.5 | 49.0 | 38.5 | 82.4 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1992 | 1992 | 1977 | 2000 | 1994 | 1990 | 1988 | 1995 | 1995 | 2000 |
| Lowest Mean Temperature (F) | 21.3 | 25.0 | 36.2 | 42.0 | 55.2 | 63.9 | 71.6 | 73.3 | 60.0 | 47.4 | 32.3 | 23.2 | 21.3 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1983 | 1998 | 1993 | 1976 | 1986 | 1984 | 2000 | 1990 | 1984 |
| Mean Min. Temperature (F) | 22.1 | 26.5 | 33.7 | 40.5 | 48.2 | 57.8 | 66.0 | 64.7 | 54.8 | 43.7 | 31.5 | 22.9 | 42.7 |
| Highest Mean Min. Temperature (F) | 30.2 | 36.2 | 40.9 | 49.3 | 53.9 | 63.3 | 70.2 | 68.7 | 61.1 | 51.1 | 39.2 | 30.5 | 70.2 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1992 | 1997 | 1977 | 1988 | 2000 | 1994 | 1988 | 1995 | 1995 | 1988 |
| Lowest Mean Min. Temperature (F) | 14.5 | 16.4 | 24.8 | 32.8 | 42.9 | 52.2 | 59.3 | 59.9 | 48.6 | 37.7 | 24.4 | 12.9 | 12.9 |
| Year Lowest Occurred | 1989 | 1984 | 1976 | 1975 | 1975 | 1998 | 1993 | 1976 | 1972 | 1984 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.05 | 2.19 | 2.92 | 3.17 | 3.06 | 1.27 | 1.11 | 1.20 | 2.12 | 2.62 | 2.45 | 2.03 | 26.19 |
| Highest Precipitation (in.) | 4.50 | 6.39 | 5.42 | 7.02 | 6.96 | 4.85 | 3.28 | 3.74 | 11.73 | 6.51 | 4.65 | 4.86 | 11.73 |
| Year Highest Occurred | 1996 | 1998 | 1983 | 1986 | 1993 | 1998 | 1984 | 1983 | 1982 | 1981 | 1983 | 1972 | 1982 |
| Lowest Precipitation (in.) | 0.62 | 0.40 | 0.93 | 0.85 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.02 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1992 | 1977 | 1972 | 1994 | 1978 | 1985 | 1979 | 1978 | 1976 | 1976 | 1994 |
| Heating Degree Days (F) | 1072. | 819. | 664. | 434. | 204. | 42. | 1. | 1. | 82. | 343. | 734. | 1045. | 5441. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 15. | 44. | 201. | 418. | 370. | 130. | 19. | 0. | 0. | 1197. |