| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.2 | 46.4 | 55.4 | 64.0 | 73.3 | 83.9 | 87.0 | 84.2 | 77.8 | 66.3 | 51.8 | 42.3 | 64.4 |
| Highest Mean Max. Temperature (F) | 51.9 | 53.8 | 63.1 | 70.6 | 80.7 | 88.0 | 91.5 | 87.0 | 82.2 | 72.8 | 62.0 | 52.2 | 91.5 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1996 | 1980 | 1980 | 1986 | 1979 | 1973 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 32.3 | 39.1 | 45.4 | 56.7 | 69.0 | 79.8 | 82.3 | 79.6 | 73.3 | 56.8 | 42.7 | 34.8 | 32.3 |
| Year Lowest Occurred | 1973 | 1973 | 1973 | 1973 | 1987 | 1991 | 1999 | 1999 | 1996 | 1984 | 1972 | 1992 | 1973 |
| Mean Temperature (F) | 25.7 | 32.5 | 39.4 | 45.8 | 54.8 | 64.5 | 69.8 | 67.8 | 60.4 | 48.5 | 36.0 | 27.1 | 47.7 |
| Highest Mean Temperature (F) | 33.3 | 39.2 | 43.8 | 50.6 | 60.3 | 68.0 | 72.1 | 71.3 | 64.2 | 52.2 | 39.8 | 34.7 | 72.1 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1974 | 1972 | 1995 | 1998 | 1979 | 1981 | 1980 | 1972 |
| Lowest Mean Temperature (F) | 18.5 | 27.7 | 36.2 | 40.4 | 51.7 | 61.7 | 67.4 | 65.0 | 57.4 | 43.7 | 30.4 | 18.5 | 18.5 |
| Year Lowest Occurred | 1977 | 1979 | 1981 | 1983 | 1983 | 1995 | 1992 | 1990 | 1985 | 1984 | 2000 | 1990 | 1990 |
| Mean Min. Temperature (F) | 11.1 | 18.5 | 23.4 | 27.6 | 36.2 | 45.1 | 52.6 | 51.4 | 43.0 | 30.7 | 20.2 | 11.9 | 31.0 |
| Highest Mean Min. Temperature (F) | 25.4 | 24.7 | 28.6 | 33.6 | 40.5 | 48.7 | 55.3 | 56.1 | 48.6 | 38.7 | 27.4 | 18.9 | 56.1 |
| Year Highest Occurred | 1980 | 1992 | 1978 | 1990 | 1992 | 2000 | 1999 | 1995 | 1997 | 1972 | 1978 | 1977 | 1995 |
| Lowest Mean Min. Temperature (F) | 3.1 | 11.9 | 18.1 | 23.3 | 32.4 | 40.9 | 49.4 | 48.1 | 38.8 | 25.9 | 12.9 | 1.2 | 1.2 |
| Year Lowest Occurred | 1989 | 1990 | 1996 | 1974 | 1983 | 1998 | 1987 | 1978 | 1973 | 1976 | 1976 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.52 | 0.36 | 0.59 | 0.53 | 0.62 | 0.64 | 1.40 | 1.75 | 1.25 | 0.97 | 0.72 | 0.56 | 9.91 |
| Highest Precipitation (in.) | 2.15 | 1.42 | 3.20 | 2.34 | 2.16 | 3.27 | 3.38 | 4.44 | 3.09 | 3.40 | 2.25 | 2.70 | 4.44 |
| Year Highest Occurred | 1993 | 1993 | 2000 | 1985 | 1992 | 1991 | 1999 | 1988 | 1975 | 1998 | 1991 | 1992 | 1988 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.13 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1994 | 1995 | 1997 | 1993 | 2000 | 1998 | 1993 | 2000 | 1979 | 1999 | 1980 | 1996 | 1994 |
| Heating Degree Days (F) | 1220. | 911. | 795. | 575. | 321. | 76. | 4. | 20. | 157. | 511. | 870. | 1175. | 6635. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 60. | 153. | 107. | 20. | 0. | 0. | 0. | 342. |