| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.5 | 61.7 | 65.9 | 72.9 | 81.9 | 90.9 | 96.4 | 96.0 | 91.1 | 81.1 | 65.6 | 57.6 | 76.5 |
| Highest Mean Max. Temperature (F) | 63.3 | 68.3 | 71.8 | 79.9 | 89.6 | 98.0 | 100.3 | 99.6 | 96.5 | 88.2 | 72.5 | 66.0 | 100.3 |
| Year Highest Occurred | 1976 | 1991 | 1997 | 1987 | 1992 | 1981 | 1988 | 1977 | 1991 | 1978 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 52.8 | 56.4 | 58.9 | 66.0 | 70.6 | 84.3 | 90.7 | 88.4 | 83.0 | 73.6 | 58.8 | 50.3 | 50.3 |
| Year Lowest Occurred | 1973 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 45.8 | 49.8 | 53.0 | 57.9 | 65.2 | 72.9 | 77.0 | 76.5 | 72.1 | 64.2 | 52.4 | 45.9 | 61.1 |
| Highest Mean Temperature (F) | 49.2 | 53.7 | 56.4 | 62.5 | 71.1 | 78.3 | 80.7 | 79.0 | 76.6 | 69.2 | 57.4 | 49.9 | 80.7 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1985 | 1992 | 1981 | 1996 | 1998 | 1984 | 1991 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 42.6 | 45.5 | 48.5 | 52.7 | 58.5 | 68.2 | 72.7 | 71.4 | 66.6 | 58.8 | 46.9 | 40.8 | 40.8 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 35.1 | 37.9 | 40.1 | 42.9 | 48.5 | 54.9 | 57.6 | 56.9 | 53.1 | 47.2 | 39.1 | 34.2 | 45.6 |
| Highest Mean Min. Temperature (F) | 41.6 | 43.5 | 44.6 | 46.7 | 52.6 | 58.6 | 61.4 | 59.7 | 57.3 | 50.8 | 44.6 | 42.5 | 61.4 |
| Year Highest Occurred | 1995 | 1980 | 1978 | 1990 | 1992 | 1981 | 1996 | 1990 | 1984 | 1993 | 1981 | 1983 | 1996 |
| Lowest Mean Min. Temperature (F) | 29.8 | 32.7 | 34.7 | 39.3 | 44.3 | 51.7 | 54.6 | 53.9 | 49.1 | 40.5 | 34.1 | 26.3 | 26.3 |
| Year Lowest Occurred | 1976 | 1990 | 1977 | 1975 | 1977 | 1980 | 1987 | 1979 | 1972 | 1971 | 1978 | 1976 | 1976 |
| Mean Precipitation (in.) | 3.82 | 3.45 | 2.63 | 0.93 | 0.35 | 0.10 | 0.03 | 0.04 | 0.20 | 0.92 | 2.56 | 2.83 | 17.86 |
| Highest Precipitation (in.) | 10.74 | 10.84 | 7.23 | 3.08 | 1.54 | 0.53 | 0.63 | 0.31 | 0.95 | 2.94 | 7.90 | 8.92 | 10.84 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1983 | 1998 | 1992 | 1974 | 1984 | 1982 | 1982 | 1983 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.31 | 0.10 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.02 | 0.00 |
| Year Lowest Occurred | 1975 | 1971 | 1972 | 1985 | 1992 | 1996 | 2000 | 2000 | 1995 | 1995 | 1995 | 1989 | 1985 |
| Heating Degree Days (F) | 595. | 426. | 373. | 230. | 98. | 6. | 0. | 0. | 10. | 103. | 381. | 593. | 2815. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 17. | 105. | 244. | 372. | 355. | 222. | 75. | 2. | 0. | 1393. |