| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.7 | 43.5 | 52.1 | 60.5 | 70.8 | 81.9 | 90.1 | 88.7 | 78.7 | 64.8 | 48.9 | 38.5 | 63.0 |
| Highest Mean Max. Temperature (F) | 46.0 | 54.5 | 59.6 | 69.6 | 76.4 | 90.2 | 94.7 | 93.0 | 86.3 | 72.3 | 61.1 | 46.9 | 94.7 |
| Year Highest Occurred | 1998 | 1995 | 1972 | 1992 | 1992 | 1977 | 2000 | 2000 | 1990 | 1988 | 1999 | 1977 | 2000 |
| Lowest Mean Max. Temperature (F) | 24.8 | 35.5 | 43.5 | 51.8 | 63.9 | 74.3 | 83.1 | 83.4 | 72.2 | 55.5 | 39.3 | 27.5 | 24.8 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1975 | 1995 | 1993 | 1993 | 1978 | 1978 | 1981 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 28.1 | 32.9 | 40.8 | 47.9 | 57.1 | 66.9 | 75.0 | 73.2 | 63.4 | 51.1 | 37.9 | 28.9 | 50.3 |
| Highest Mean Temperature (F) | 37.2 | 41.3 | 47.2 | 54.5 | 61.3 | 73.4 | 80.2 | 78.2 | 70.4 | 57.7 | 47.3 | 36.6 | 80.2 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1992 | 1992 | 1977 | 2000 | 2000 | 1990 | 1988 | 1999 | 1977 | 2000 |
| Lowest Mean Temperature (F) | 18.3 | 24.6 | 33.6 | 40.4 | 51.3 | 59.8 | 67.3 | 67.3 | 57.8 | 42.9 | 30.2 | 18.2 | 18.2 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1975 | 1995 | 1993 | 1993 | 1978 | 1971 | 1982 | 2000 | 1978 | 1978 |
| Mean Min. Temperature (F) | 18.4 | 22.2 | 29.5 | 35.2 | 43.4 | 51.9 | 59.8 | 57.7 | 48.0 | 37.3 | 26.8 | 19.3 | 37.5 |
| Highest Mean Min. Temperature (F) | 28.3 | 31.3 | 35.5 | 40.2 | 47.5 | 57.1 | 65.6 | 63.3 | 54.5 | 43.1 | 33.4 | 26.3 | 65.6 |
| Year Highest Occurred | 1998 | 1998 | 1986 | 1990 | 1977 | 1978 | 2000 | 2000 | 1990 | 1988 | 1999 | 1977 | 2000 |
| Lowest Mean Min. Temperature (F) | 9.2 | 13.1 | 20.5 | 28.9 | 37.9 | 45.3 | 51.4 | 49.9 | 42.4 | 29.9 | 19.5 | 8.8 | 8.8 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1993 | 1993 | 1976 | 1971 | 1982 | 1993 | 1978 | 1978 |
| Mean Precipitation (in.) | 1.54 | 1.58 | 1.91 | 1.94 | 2.09 | 0.83 | 0.74 | 0.98 | 1.42 | 2.06 | 1.80 | 1.33 | 18.22 |
| Highest Precipitation (in.) | 3.87 | 3.64 | 3.81 | 4.11 | 6.09 | 3.67 | 1.99 | 3.56 | 10.42 | 6.36 | 4.60 | 3.86 | 10.42 |
| Year Highest Occurred | 1993 | 1996 | 1996 | 1973 | 1995 | 1998 | 1985 | 1984 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.13 | 0.33 | 0.42 | 0.11 | 0.14 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.17 | 0.11 | 0.00 |
| Year Lowest Occurred | 1986 | 1977 | 1971 | 1992 | 1974 | 1980 | 1978 | 1976 | 1974 | 1978 | 1977 | 1976 | 1980 |
| Heating Degree Days (F) | 1146. | 900. | 750. | 518. | 268. | 89. | 6. | 8. | 122. | 439. | 814. | 1120. | 6180. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 23. | 145. | 315. | 262. | 72. | 6. | 0. | 0. | 826. |