| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.0 | 61.4 | 65.0 | 70.4 | 77.4 | 84.5 | 89.3 | 89.0 | 85.3 | 77.8 | 65.1 | 57.3 | 73.3 |
| Highest Mean Max. Temperature (F) | 61.4 | 68.7 | 71.9 | 78.2 | 84.5 | 89.9 | 92.6 | 94.3 | 90.4 | 83.2 | 71.6 | 62.8 | 94.3 |
| Year Highest Occurred | 1976 | 1991 | 1997 | 1987 | 1997 | 1981 | 1996 | 1998 | 1984 | 1978 | 1995 | 1976 | 1998 |
| Lowest Mean Max. Temperature (F) | 53.9 | 54.8 | 58.0 | 62.9 | 66.4 | 78.0 | 84.9 | 83.8 | 77.4 | 72.5 | 58.4 | 51.5 | 51.5 |
| Year Lowest Occurred | 1985 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 46.4 | 50.0 | 52.7 | 56.7 | 62.3 | 67.6 | 70.3 | 69.7 | 67.3 | 61.6 | 52.3 | 46.2 | 58.6 |
| Highest Mean Temperature (F) | 50.8 | 53.7 | 58.0 | 61.1 | 67.4 | 73.0 | 74.1 | 73.7 | 70.6 | 65.0 | 57.4 | 51.8 | 74.1 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1987 | 1997 | 1981 | 1988 | 1998 | 1997 | 1978 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 42.3 | 45.4 | 47.8 | 50.2 | 56.1 | 63.5 | 68.5 | 66.6 | 62.2 | 57.8 | 46.9 | 41.5 | 41.5 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1977 | 1980 | 1981 | 1973 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 35.7 | 38.6 | 40.3 | 42.9 | 47.1 | 50.7 | 51.3 | 50.4 | 49.2 | 45.3 | 39.5 | 35.1 | 43.8 |
| Highest Mean Min. Temperature (F) | 44.5 | 43.7 | 45.6 | 47.1 | 50.3 | 56.1 | 55.6 | 54.2 | 53.6 | 48.3 | 45.7 | 43.6 | 56.1 |
| Year Highest Occurred | 1998 | 1996 | 1978 | 1997 | 1997 | 1981 | 1988 | 1988 | 1998 | 1987 | 1997 | 1995 | 1981 |
| Lowest Mean Min. Temperature (F) | 30.2 | 32.9 | 33.8 | 37.6 | 43.4 | 46.7 | 48.0 | 47.2 | 45.9 | 40.4 | 35.1 | 28.5 | 28.5 |
| Year Lowest Occurred | 1972 | 1989 | 1977 | 1975 | 1977 | 1991 | 1981 | 1973 | 1993 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 9.02 | 8.25 | 6.91 | 2.43 | 1.03 | 0.18 | 0.05 | 0.13 | 0.60 | 2.21 | 5.70 | 6.88 | 43.39 |
| Highest Precipitation (in.) | 35.56 | 25.97 | 23.03 | 8.06 | 5.92 | 1.18 | 1.14 | 1.23 | 3.10 | 6.23 | 19.91 | 23.19 | 35.56 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1998 | 1993 | 1974 | 1983 | 1989 | 1979 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.40 | 0.41 | 0.20 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1995 | 1988 | 1987 | 1992 | 1996 | 2000 | 2000 | 1995 | 1995 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 578. | 421. | 387. | 262. | 135. | 32. | 3. | 8. | 34. | 136. | 382. | 584. | 2962. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 11. | 49. | 111. | 166. | 154. | 100. | 29. | 2. | 0. | 624. |