| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.5 | 59.8 | 64.8 | 72.4 | 80.7 | 88.4 | 93.2 | 92.1 | 88.0 | 78.6 | 62.9 | 54.0 | 74.0 |
| Highest Mean Max. Temperature (F) | 58.2 | 66.0 | 71.9 | 80.5 | 90.2 | 94.5 | 99.1 | 95.8 | 94.3 | 85.7 | 71.6 | 60.9 | 99.1 |
| Year Highest Occurred | 1976 | 1991 | 1972 | 1987 | 1992 | 1981 | 1988 | 1992 | 1991 | 1991 | 1995 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.8 | 54.3 | 57.9 | 63.8 | 69.3 | 81.6 | 88.6 | 87.2 | 81.1 | 71.8 | 56.5 | 46.4 | 46.4 |
| Year Lowest Occurred | 1992 | 1998 | 1991 | 1983 | 1998 | 1998 | 1999 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 45.6 | 50.6 | 54.6 | 59.6 | 67.5 | 73.7 | 76.9 | 75.4 | 71.5 | 63.8 | 52.2 | 45.5 | 61.4 |
| Highest Mean Temperature (F) | 49.9 | 54.3 | 59.3 | 64.5 | 73.6 | 79.1 | 82.3 | 77.9 | 74.7 | 69.6 | 57.8 | 49.4 | 82.3 |
| Year Highest Occurred | 1978 | 1992 | 1986 | 1990 | 1992 | 1981 | 1988 | 1971 | 1984 | 1991 | 1995 | 1996 | 1988 |
| Lowest Mean Temperature (F) | 41.3 | 46.5 | 49.7 | 53.2 | 59.9 | 69.1 | 73.2 | 73.0 | 66.5 | 59.9 | 47.3 | 39.8 | 39.8 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1998 | 1980 | 1999 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 37.6 | 41.3 | 44.4 | 46.8 | 54.3 | 58.9 | 60.5 | 58.7 | 55.0 | 49.0 | 41.5 | 37.0 | 48.8 |
| Highest Mean Min. Temperature (F) | 45.2 | 46.4 | 51.2 | 51.6 | 58.3 | 63.7 | 65.5 | 61.0 | 58.3 | 53.4 | 45.8 | 43.9 | 65.5 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1997 | 1981 | 1988 | 1971 | 1998 | 1991 | 1997 | 1983 | 1988 |
| Lowest Mean Min. Temperature (F) | 31.5 | 35.6 | 37.9 | 42.0 | 50.1 | 55.3 | 55.5 | 56.0 | 52.0 | 44.9 | 36.9 | 30.6 | 30.6 |
| Year Lowest Occurred | 1976 | 1989 | 1976 | 1975 | 1977 | 1980 | 1987 | 1994 | 1986 | 1971 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 3.65 | 3.07 | 2.71 | 0.77 | 0.65 | 0.20 | 0.04 | 0.04 | 0.34 | 0.94 | 2.15 | 2.34 | 16.90 |
| Highest Precipitation (in.) | 13.57 | 12.09 | 7.91 | 3.03 | 3.71 | 0.83 | 0.96 | 0.50 | 2.95 | 3.15 | 6.31 | 7.97 | 13.57 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1983 | 1998 | 1992 | 1974 | 1997 | 1989 | 1982 | 1984 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.01 | 0.03 | 0.35 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1971 | 1972 | 1987 | 1992 | 1994 | 2000 | 2000 | 1999 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 603. | 406. | 329. | 190. | 67. | 4. | 0. | 0. | 8. | 105. | 385. | 605. | 2702. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 27. | 145. | 262. | 367. | 322. | 202. | 68. | 2. | 0. | 1401. |