| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.8 | 63.0 | 70.9 | 78.8 | 86.8 | 92.7 | 94.3 | 92.8 | 86.1 | 77.4 | 65.8 | 58.4 | 77.0 |
| Highest Mean Max. Temperature (F) | 64.2 | 72.7 | 78.8 | 85.9 | 95.7 | 100.8 | 100.2 | 98.6 | 96.2 | 83.9 | 72.7 | 64.9 | 100.8 |
| Year Highest Occurred | 1971 | 1976 | 1974 | 1972 | 1998 | 1990 | 1998 | 1977 | 1977 | 1979 | 1981 | 1977 | 1990 |
| Lowest Mean Max. Temperature (F) | 46.6 | 55.3 | 63.0 | 71.1 | 80.5 | 87.6 | 85.6 | 84.5 | 76.9 | 71.7 | 57.2 | 49.6 | 46.6 |
| Year Lowest Occurred | 1979 | 1997 | 1987 | 1973 | 1992 | 1987 | 1976 | 1971 | 1974 | 1986 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 43.2 | 48.6 | 55.9 | 63.7 | 72.8 | 79.6 | 81.7 | 80.4 | 73.9 | 64.4 | 52.3 | 44.8 | 63.4 |
| Highest Mean Temperature (F) | 48.1 | 56.2 | 62.7 | 69.7 | 81.1 | 86.5 | 86.9 | 85.4 | 82.1 | 69.0 | 57.0 | 49.4 | 86.9 |
| Year Highest Occurred | 1998 | 1976 | 1974 | 1972 | 1996 | 1990 | 1998 | 1977 | 1977 | 1998 | 1981 | 1977 | 1998 |
| Lowest Mean Temperature (F) | 35.9 | 43.3 | 49.5 | 57.1 | 68.0 | 75.7 | 75.8 | 74.4 | 67.8 | 58.4 | 46.4 | 37.5 | 35.9 |
| Year Lowest Occurred | 1979 | 1989 | 1987 | 1973 | 1992 | 1987 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 29.6 | 34.1 | 40.8 | 48.6 | 58.8 | 66.4 | 69.1 | 67.9 | 61.6 | 51.3 | 38.8 | 31.2 | 49.9 |
| Highest Mean Min. Temperature (F) | 33.5 | 40.2 | 46.6 | 53.5 | 66.6 | 72.2 | 73.5 | 72.1 | 67.9 | 57.5 | 44.1 | 37.0 | 73.5 |
| Year Highest Occurred | 1995 | 2000 | 1974 | 1972 | 1996 | 1990 | 1998 | 1977 | 1977 | 1998 | 1998 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 24.8 | 29.5 | 34.5 | 42.5 | 53.9 | 62.7 | 65.9 | 64.2 | 57.1 | 44.7 | 34.0 | 23.5 | 23.5 |
| Year Lowest Occurred | 1988 | 1989 | 1996 | 1980 | 1973 | 1973 | 1976 | 1971 | 1989 | 1976 | 1976 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.53 | 0.58 | 0.42 | 0.73 | 1.79 | 1.71 | 1.89 | 1.77 | 2.31 | 1.77 | 0.65 | 0.65 | 14.80 |
| Highest Precipitation (in.) | 1.80 | 2.55 | 1.73 | 2.15 | 7.63 | 3.50 | 8.50 | 4.43 | 9.70 | 7.45 | 2.31 | 3.30 | 9.70 |
| Year Highest Occurred | 1991 | 1992 | 1973 | 1981 | 1992 | 1991 | 1991 | 1974 | 1980 | 1986 | 1984 | 1986 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.01 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1971 | 2000 | 1994 | 1998 | 1998 | 1990 | 1983 | 1999 | 2000 | 1988 | 1999 | 1999 | 1971 |
| Heating Degree Days (F) | 680. | 472. | 302. | 120. | 18. | 0. | 0. | 0. | 19. | 103. | 380. | 622. | 2716. |
| Cooling Degree Days (F) | 0. | 2. | 15. | 77. | 254. | 438. | 512. | 473. | 281. | 83. | 4. | 0. | 2139. |