| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.1 | 53.0 | 61.7 | 69.5 | 78.3 | 86.5 | 95.4 | 95.1 | 86.1 | 72.3 | 54.3 | 46.0 | 70.4 |
| Highest Mean Max. Temperature (F) | 54.1 | 61.9 | 68.2 | 78.3 | 86.5 | 94.3 | 103.5 | 101.4 | 92.4 | 81.2 | 59.5 | 53.0 | 103.5 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1987 | 1985 | 1986 | 1990 | 1988 | 1989 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 28.5 | 42.1 | 56.3 | 62.2 | 71.2 | 79.3 | 83.9 | 88.8 | 78.5 | 66.2 | 44.1 | 32.8 | 28.5 |
| Year Lowest Occurred | 1979 | 1993 | 1975 | 1975 | 1977 | 1997 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 36.0 | 40.8 | 46.5 | 52.2 | 59.4 | 66.5 | 73.0 | 72.7 | 64.8 | 54.2 | 42.9 | 36.2 | 53.8 |
| Highest Mean Temperature (F) | 41.4 | 47.3 | 51.1 | 57.6 | 65.0 | 71.4 | 78.4 | 76.4 | 69.6 | 61.0 | 48.0 | 42.1 | 78.4 |
| Year Highest Occurred | 1992 | 1991 | 1986 | 1987 | 1992 | 1987 | 1985 | 1986 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 19.1 | 30.4 | 42.1 | 46.3 | 55.3 | 61.7 | 65.7 | 68.2 | 59.7 | 50.4 | 32.3 | 24.9 | 19.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1997 | 1993 | 1980 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 25.9 | 28.6 | 31.2 | 34.8 | 40.5 | 46.4 | 50.6 | 50.2 | 43.5 | 36.1 | 31.5 | 26.4 | 37.1 |
| Highest Mean Min. Temperature (F) | 31.9 | 35.1 | 36.0 | 38.4 | 44.0 | 49.9 | 54.4 | 54.9 | 47.5 | 41.0 | 36.8 | 33.2 | 54.9 |
| Year Highest Occurred | 1981 | 1992 | 1983 | 1992 | 1993 | 1992 | 1998 | 1977 | 1997 | 1979 | 1999 | 1973 | 1977 |
| Lowest Mean Min. Temperature (F) | 9.7 | 17.2 | 27.7 | 30.4 | 37.3 | 42.4 | 47.4 | 46.0 | 39.3 | 33.5 | 19.3 | 16.9 | 9.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1999 | 1976 | 1993 | 1988 | 1999 | 1971 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 1.65 | 1.10 | 0.95 | 0.80 | 0.85 | 0.56 | 0.37 | 0.44 | 0.41 | 0.65 | 1.53 | 1.49 | 10.80 |
| Highest Precipitation (in.) | 3.87 | 3.24 | 2.35 | 2.25 | 4.12 | 1.53 | 1.70 | 1.54 | 1.82 | 1.67 | 4.78 | 5.19 | 5.19 |
| Year Highest Occurred | 1995 | 1983 | 1983 | 1989 | 1998 | 1988 | 1987 | 1976 | 1982 | 1982 | 1996 | 1981 | 1981 |
| Lowest Precipitation (in.) | 0.15 | 0.10 | 0.09 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.03 | 0.00 |
| Year Lowest Occurred | 1985 | 1990 | 1973 | 1985 | 1974 | 1974 | 1994 | 2000 | 1999 | 1988 | 1974 | 1976 | 1974 |
| Heating Degree Days (F) | 899. | 677. | 576. | 388. | 195. | 66. | 11. | 10. | 96. | 336. | 663. | 893. | 4810. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 22. | 110. | 259. | 247. | 90. | 2. | 0. | 0. | 733. |