| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 58.3 | 62.7 | 65.9 | 72.3 | 81.1 | 90.2 | 96.6 | 95.5 | 90.5 | 80.6 | 66.1 | 58.3 | 76.5 |
| Highest Mean Max. Temperature (F) | 62.4 | 70.4 | 72.7 | 80.5 | 88.1 | 96.8 | 101.5 | 99.1 | 96.1 | 87.1 | 74.5 | 65.7 | 101.5 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1981 | 1988 | 1992 | 1991 | 1978 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 54.4 | 57.6 | 59.9 | 63.5 | 70.0 | 82.9 | 90.5 | 88.5 | 81.6 | 74.2 | 58.9 | 53.7 | 53.7 |
| Year Lowest Occurred | 1985 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 46.3 | 49.8 | 52.7 | 57.1 | 64.1 | 71.0 | 76.3 | 75.1 | 71.2 | 63.3 | 52.7 | 46.2 | 60.5 |
| Highest Mean Temperature (F) | 51.2 | 53.1 | 57.6 | 62.4 | 69.3 | 75.6 | 80.5 | 77.9 | 75.5 | 67.4 | 58.3 | 50.8 | 80.5 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1987 | 1997 | 1981 | 1988 | 1971 | 1984 | 1978 | 1995 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 42.1 | 44.7 | 48.5 | 50.5 | 57.6 | 67.0 | 71.0 | 71.6 | 65.1 | 59.3 | 47.1 | 40.8 | 40.8 |
| Year Lowest Occurred | 1985 | 1990 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 34.3 | 36.9 | 39.4 | 41.8 | 47.0 | 51.7 | 56.0 | 54.7 | 51.9 | 46.0 | 39.2 | 34.0 | 44.4 |
| Highest Mean Min. Temperature (F) | 41.6 | 41.2 | 45.9 | 44.4 | 51.5 | 57.5 | 59.7 | 58.4 | 55.5 | 49.8 | 44.0 | 41.6 | 59.7 |
| Year Highest Occurred | 1995 | 2000 | 1978 | 1988 | 1987 | 1977 | 1984 | 1977 | 1998 | 1987 | 1997 | 1983 | 1984 |
| Lowest Mean Min. Temperature (F) | 28.5 | 30.5 | 34.5 | 37.6 | 43.9 | 48.8 | 51.5 | 51.0 | 47.3 | 40.6 | 34.0 | 25.9 | 25.9 |
| Year Lowest Occurred | 1989 | 1990 | 1977 | 1975 | 1991 | 1993 | 1987 | 1989 | 1994 | 1994 | 1990 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.85 | 5.33 | 5.41 | 2.33 | 0.94 | 0.35 | 0.16 | 0.13 | 0.63 | 1.72 | 3.89 | 4.20 | 30.94 |
| Highest Precipitation (in.) | 13.57 | 14.39 | 13.21 | 7.54 | 4.55 | 1.36 | 3.05 | 1.51 | 3.09 | 5.19 | 13.42 | 12.95 | 14.39 |
| Year Highest Occurred | 1995 | 1986 | 1991 | 1978 | 1995 | 1991 | 1974 | 1976 | 1982 | 1982 | 1983 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.28 | 0.59 | 0.18 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1994 | 1987 | 1992 | 1994 | 2000 | 2000 | 1995 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 579. | 427. | 384. | 250. | 112. | 16. | 0. | 0. | 14. | 114. | 372. | 586. | 2854. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 12. | 82. | 195. | 350. | 314. | 201. | 62. | 1. | 0. | 1218. |