| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.5 | 51.3 | 61.6 | 70.3 | 79.4 | 90.0 | 94.5 | 91.8 | 83.9 | 70.5 | 54.6 | 44.0 | 69.5 |
| Highest Mean Max. Temperature (F) | 52.1 | 60.9 | 69.8 | 77.8 | 87.5 | 95.1 | 99.1 | 96.5 | 88.0 | 77.3 | 61.6 | 53.1 | 99.1 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1989 | 2000 | 1994 | 2000 | 2000 | 2000 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 30.9 | 41.8 | 54.6 | 60.7 | 72.7 | 83.4 | 90.8 | 88.7 | 77.1 | 62.8 | 48.9 | 31.6 | 30.9 |
| Year Lowest Occurred | 1977 | 1974 | 1973 | 1983 | 1995 | 1983 | 1986 | 1979 | 1986 | 1984 | 2000 | 1992 | 1977 |
| Mean Temperature (F) | 29.8 | 37.2 | 45.8 | 53.3 | 62.1 | 70.7 | 77.1 | 75.3 | 66.3 | 53.0 | 39.8 | 30.7 | 53.4 |
| Highest Mean Temperature (F) | 36.8 | 44.2 | 49.9 | 59.5 | 69.2 | 76.6 | 82.7 | 81.5 | 72.0 | 57.3 | 42.7 | 36.4 | 82.7 |
| Year Highest Occurred | 1980 | 1995 | 1989 | 2000 | 2000 | 2000 | 1998 | 2000 | 1998 | 1988 | 1973 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 18.5 | 28.6 | 41.9 | 46.9 | 58.0 | 65.8 | 73.6 | 70.9 | 62.0 | 49.3 | 35.3 | 20.1 | 18.5 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1983 | 1975 | 1975 | 1979 | 1979 | 1973 | 1984 | 1979 | 1990 | 1973 |
| Mean Min. Temperature (F) | 17.1 | 23.0 | 30.0 | 36.3 | 44.8 | 51.4 | 59.7 | 58.8 | 48.7 | 35.5 | 25.0 | 17.3 | 37.3 |
| Highest Mean Min. Temperature (F) | 28.3 | 29.3 | 34.1 | 43.0 | 50.9 | 58.6 | 67.4 | 66.5 | 56.4 | 45.5 | 29.1 | 24.1 | 67.4 |
| Year Highest Occurred | 1980 | 2000 | 1995 | 2000 | 2000 | 2000 | 1998 | 2000 | 1998 | 1972 | 1978 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 5.1 | 15.4 | 23.9 | 31.0 | 39.9 | 46.2 | 53.8 | 53.1 | 43.1 | 30.3 | 18.6 | 6.2 | 5.1 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1974 | 1975 | 1975 | 1979 | 1975 | 1973 | 1995 | 1976 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.85 | 0.67 | 0.65 | 0.49 | 0.53 | 0.21 | 0.76 | 0.73 | 0.63 | 1.08 | 0.75 | 0.62 | 7.97 |
| Highest Precipitation (in.) | 3.41 | 2.49 | 2.17 | 1.55 | 2.43 | 0.92 | 3.12 | 3.14 | 2.23 | 6.35 | 2.77 | 2.16 | 6.35 |
| Year Highest Occurred | 1993 | 1980 | 1973 | 1997 | 1992 | 1983 | 1986 | 1999 | 1997 | 1972 | 1987 | 1978 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1984 | 1999 | 1998 | 2000 | 2000 | 1993 | 1985 | 1979 | 1999 | 1999 | 1989 | 1976 |
| Heating Degree Days (F) | 1091. | 780. | 596. | 356. | 143. | 23. | 0. | 3. | 65. | 375. | 755. | 1065. | 5252. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 54. | 194. | 375. | 323. | 104. | 3. | 0. | 0. | 1059. |