| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.3 | 59.8 | 64.7 | 72.0 | 80.3 | 88.2 | 92.7 | 91.7 | 88.0 | 78.9 | 63.6 | 53.9 | 73.9 |
| Highest Mean Max. Temperature (F) | 60.3 | 65.9 | 72.4 | 79.5 | 88.4 | 95.1 | 97.7 | 96.2 | 93.4 | 86.3 | 72.9 | 61.2 | 97.7 |
| Year Highest Occurred | 1976 | 1991 | 1972 | 1987 | 1992 | 1981 | 1988 | 1992 | 1991 | 1991 | 1995 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.1 | 55.1 | 58.4 | 64.7 | 69.3 | 81.7 | 87.7 | 85.3 | 80.8 | 72.2 | 56.2 | 47.3 | 47.3 |
| Year Lowest Occurred | 1985 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 45.2 | 49.8 | 53.6 | 58.6 | 65.2 | 71.4 | 74.3 | 73.4 | 70.7 | 63.5 | 52.2 | 45.0 | 60.2 |
| Highest Mean Temperature (F) | 50.6 | 53.7 | 57.6 | 63.0 | 71.0 | 77.4 | 79.0 | 76.4 | 75.0 | 68.6 | 58.2 | 50.0 | 79.0 |
| Year Highest Occurred | 1978 | 1991 | 1972 | 1990 | 1992 | 1981 | 1988 | 1998 | 1984 | 1991 | 1995 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 40.4 | 45.5 | 49.4 | 53.0 | 58.1 | 66.8 | 70.4 | 69.9 | 65.5 | 59.6 | 46.6 | 40.5 | 40.4 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 37.1 | 39.8 | 42.4 | 45.1 | 50.0 | 54.5 | 55.9 | 55.0 | 53.3 | 48.0 | 40.8 | 36.1 | 46.5 |
| Highest Mean Min. Temperature (F) | 44.6 | 44.8 | 46.9 | 48.1 | 53.8 | 59.7 | 60.3 | 58.4 | 57.6 | 51.1 | 46.3 | 43.2 | 60.3 |
| Year Highest Occurred | 1978 | 1992 | 1993 | 2000 | 2000 | 1981 | 1988 | 1983 | 1984 | 1992 | 1997 | 1977 | 1988 |
| Lowest Mean Min. Temperature (F) | 32.3 | 34.2 | 37.6 | 40.8 | 44.7 | 51.0 | 53.0 | 52.0 | 50.2 | 43.5 | 36.2 | 28.2 | 28.2 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1971 | 1977 | 1980 | 1977 | 1994 | 1986 | 1971 | 1994 | 1976 | 1976 |
| Mean Precipitation (in.) | 4.04 | 3.76 | 3.03 | 0.97 | 0.55 | 0.18 | 0.03 | 0.04 | 0.30 | 0.90 | 2.44 | 2.81 | 19.05 |
| Highest Precipitation (in.) | 12.48 | 11.38 | 8.63 | 5.44 | 2.47 | 1.53 | 0.63 | 0.51 | 2.31 | 2.81 | 6.49 | 6.73 | 12.48 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1998 | 1993 | 1974 | 1976 | 1989 | 1982 | 1984 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.23 | 0.13 | 0.08 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1975 | 1971 | 1994 | 1977 | 1992 | 1996 | 2000 | 2000 | 1999 | 1995 | 1995 | 2000 | 1992 |
| Heating Degree Days (F) | 614. | 425. | 358. | 215. | 99. | 11. | 0. | 1. | 15. | 109. | 386. | 620. | 2853. |
| Cooling Degree Days (F) | 0. | 0. | 3. | 20. | 104. | 202. | 289. | 261. | 185. | 61. | 2. | 0. | 1127. |