| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.0 | 51.0 | 56.1 | 60.7 | 67.1 | 73.4 | 81.2 | 82.4 | 77.1 | 65.4 | 52.9 | 46.4 | 63.4 |
| Highest Mean Max. Temperature (F) | 50.7 | 56.6 | 62.6 | 66.3 | 75.0 | 80.2 | 88.0 | 88.2 | 84.6 | 73.7 | 57.0 | 51.0 | 88.2 |
| Year Highest Occurred | 1986 | 1992 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1995 | 1979 | 1986 |
| Lowest Mean Max. Temperature (F) | 38.6 | 42.9 | 51.0 | 55.1 | 62.4 | 68.2 | 74.2 | 77.0 | 70.9 | 60.0 | 45.8 | 40.5 | 38.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1991 | 1971 | 1993 | 1975 | 1978 | 1984 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 40.3 | 43.2 | 46.9 | 50.3 | 55.6 | 61.0 | 66.5 | 67.0 | 62.7 | 53.6 | 45.5 | 40.1 | 52.7 |
| Highest Mean Temperature (F) | 44.0 | 48.4 | 51.4 | 55.1 | 60.6 | 65.6 | 70.2 | 70.2 | 66.4 | 57.6 | 50.4 | 44.4 | 70.2 |
| Year Highest Occurred | 1995 | 1991 | 1986 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1995 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 32.2 | 35.5 | 42.8 | 45.0 | 51.8 | 57.4 | 62.8 | 63.7 | 59.2 | 50.7 | 38.7 | 33.4 | 32.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1993 | 1975 | 1985 | 1971 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 33.6 | 35.4 | 37.6 | 39.9 | 44.0 | 48.5 | 51.8 | 51.5 | 48.2 | 41.8 | 38.0 | 33.8 | 42.0 |
| Highest Mean Min. Temperature (F) | 38.4 | 40.7 | 42.3 | 43.9 | 48.3 | 51.2 | 55.1 | 54.0 | 52.3 | 46.6 | 43.9 | 38.8 | 55.1 |
| Year Highest Occurred | 1995 | 1991 | 1983 | 1989 | 1993 | 1986 | 1995 | 1997 | 1995 | 1988 | 1995 | 1977 | 1995 |
| Lowest Mean Min. Temperature (F) | 25.7 | 28.0 | 33.9 | 35.0 | 41.2 | 44.4 | 48.8 | 47.3 | 44.7 | 36.9 | 30.3 | 25.5 | 25.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1976 | 1976 | 1999 | 1980 | 1993 | 1974 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.46 | 5.71 | 4.59 | 2.98 | 2.30 | 1.46 | 0.57 | 0.73 | 1.47 | 3.02 | 6.94 | 7.43 | 43.66 |
| Highest Precipitation (in.) | 11.59 | 13.63 | 8.87 | 6.82 | 5.80 | 4.34 | 2.55 | 2.67 | 3.58 | 7.21 | 18.28 | 17.11 | 18.28 |
| Year Highest Occurred | 1974 | 1996 | 1974 | 1993 | 1998 | 1984 | 1983 | 1979 | 1977 | 1979 | 1973 | 1996 | 1973 |
| Lowest Precipitation (in.) | 0.25 | 1.65 | 1.04 | 1.02 | 0.00 | 0.29 | 0.01 | 0.00 | 0.00 | 0.14 | 1.03 | 1.47 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 1992 | 1977 | 1992 | 1987 | 1994 | 1998 | 1975 | 1988 | 1993 | 1976 | 1992 |
| Heating Degree Days (F) | 766. | 610. | 562. | 442. | 296. | 143. | 44. | 33. | 109. | 353. | 586. | 771. | 4715. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 22. | 91. | 93. | 38. | 0. | 0. | 0. | 247. |