| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.9 | 45.6 | 50.3 | 58.4 | 67.6 | 78.7 | 82.2 | 79.7 | 73.8 | 63.1 | 50.8 | 43.7 | 61.4 |
| Highest Mean Max. Temperature (F) | 52.0 | 52.4 | 59.2 | 68.8 | 75.8 | 87.0 | 85.0 | 82.9 | 77.4 | 70.0 | 60.8 | 52.8 | 87.0 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1984 | 1974 | 1980 | 1991 | 1992 | 1988 | 1999 | 1980 | 1974 |
| Lowest Mean Max. Temperature (F) | 34.1 | 37.4 | 38.6 | 49.6 | 59.8 | 73.5 | 76.5 | 76.2 | 66.9 | 52.5 | 42.8 | 33.5 | 33.5 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1995 | 1998 | 1999 | 1999 | 1986 | 1971 | 1972 | 1971 | 1971 |
| Mean Temperature (F) | 29.7 | 32.2 | 36.6 | 42.9 | 50.8 | 60.1 | 66.1 | 64.4 | 57.8 | 47.1 | 36.5 | 30.2 | 46.2 |
| Highest Mean Temperature (F) | 37.0 | 37.2 | 41.8 | 50.4 | 56.8 | 66.5 | 69.0 | 66.9 | 60.7 | 52.5 | 42.3 | 39.9 | 69.0 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1984 | 1974 | 1980 | 1995 | 1983 | 1988 | 1995 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 22.6 | 25.9 | 26.8 | 36.2 | 45.6 | 55.0 | 62.8 | 60.5 | 53.0 | 38.6 | 29.6 | 21.9 | 21.9 |
| Year Lowest Occurred | 1979 | 1979 | 1973 | 1975 | 1980 | 1998 | 1987 | 1979 | 1986 | 1971 | 1972 | 1972 | 1972 |
| Mean Min. Temperature (F) | 16.5 | 18.8 | 22.8 | 27.3 | 34.0 | 41.4 | 49.9 | 49.1 | 41.7 | 31.1 | 22.1 | 16.6 | 30.9 |
| Highest Mean Min. Temperature (F) | 23.7 | 24.2 | 26.7 | 34.4 | 39.3 | 46.7 | 54.5 | 52.2 | 46.0 | 34.9 | 27.3 | 26.9 | 54.5 |
| Year Highest Occurred | 1981 | 1995 | 1978 | 1981 | 1992 | 1994 | 1981 | 1995 | 1997 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 9.9 | 11.5 | 15.0 | 21.5 | 27.5 | 36.5 | 45.3 | 44.2 | 36.6 | 24.7 | 16.4 | 9.6 | 9.6 |
| Year Lowest Occurred | 1973 | 1979 | 1973 | 1972 | 1972 | 1998 | 1987 | 1979 | 1971 | 1971 | 1972 | 1972 | 1972 |
| Mean Precipitation (in.) | 2.18 | 2.56 | 2.62 | 1.29 | 0.80 | 0.43 | 2.40 | 2.89 | 2.12 | 1.93 | 1.86 | 1.83 | 22.91 |
| Highest Precipitation (in.) | 9.55 | 10.05 | 6.18 | 3.83 | 4.14 | 1.93 | 6.62 | 8.06 | 6.75 | 9.86 | 6.64 | 6.78 | 10.05 |
| Year Highest Occurred | 1993 | 1993 | 1973 | 1988 | 1992 | 1972 | 1986 | 1986 | 1983 | 1972 | 1985 | 1992 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1972 | 1991 | 1996 | 1998 | 1993 | 1976 | 1992 | 1999 | 1999 | 1999 | 1972 |
| Heating Degree Days (F) | 1099. | 930. | 880. | 668. | 446. | 174. | 33. | 56. | 224. | 554. | 850. | 1085. | 6999. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 23. | 64. | 36. | 3. | 0. | 0. | 0. | 126. |