| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.4 | 45.2 | 50.8 | 57.3 | 65.9 | 74.4 | 83.1 | 83.1 | 75.5 | 64.8 | 47.8 | 39.9 | 60.7 |
| Highest Mean Max. Temperature (F) | 47.6 | 53.0 | 57.5 | 66.8 | 76.3 | 80.1 | 88.1 | 87.8 | 82.3 | 74.5 | 55.1 | 43.8 | 88.1 |
| Year Highest Occurred | 1986 | 1991 | 1994 | 1987 | 1992 | 1986 | 1994 | 1986 | 1974 | 1988 | 1995 | 1976 | 1994 |
| Lowest Mean Max. Temperature (F) | 33.8 | 37.9 | 44.4 | 48.0 | 57.1 | 67.9 | 75.2 | 73.7 | 66.3 | 55.1 | 39.3 | 33.9 | 33.8 |
| Year Lowest Occurred | 1993 | 1989 | 1975 | 1975 | 1998 | 1980 | 1993 | 1976 | 1985 | 1984 | 1994 | 1984 | 1993 |
| Mean Temperature (F) | 30.2 | 35.1 | 39.2 | 43.9 | 51.2 | 58.9 | 65.7 | 64.6 | 57.2 | 47.6 | 36.2 | 29.7 | 46.6 |
| Highest Mean Temperature (F) | 38.3 | 40.1 | 44.1 | 48.7 | 57.5 | 64.3 | 69.8 | 68.8 | 61.6 | 53.5 | 42.8 | 35.2 | 69.8 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1987 | 1992 | 1986 | 1996 | 1986 | 1998 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 23.1 | 26.8 | 35.3 | 37.7 | 45.8 | 54.1 | 58.2 | 58.9 | 51.5 | 41.7 | 27.6 | 22.4 | 22.4 |
| Year Lowest Occurred | 1993 | 1989 | 1985 | 1975 | 1977 | 1980 | 1993 | 1976 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 19.9 | 24.9 | 27.6 | 30.5 | 36.4 | 43.3 | 48.2 | 46.1 | 38.8 | 30.3 | 24.5 | 19.4 | 32.5 |
| Highest Mean Min. Temperature (F) | 29.1 | 30.6 | 32.8 | 33.7 | 39.3 | 48.5 | 52.2 | 50.2 | 41.9 | 37.1 | 30.4 | 27.7 | 52.2 |
| Year Highest Occurred | 1986 | 1986 | 1983 | 1992 | 1997 | 1986 | 1996 | 1971 | 1998 | 1979 | 1995 | 1981 | 1996 |
| Lowest Mean Min. Temperature (F) | 11.3 | 15.6 | 22.8 | 27.0 | 33.5 | 39.1 | 41.2 | 42.9 | 35.7 | 27.6 | 15.1 | 9.7 | 9.7 |
| Year Lowest Occurred | 1977 | 1989 | 1985 | 1982 | 1999 | 1991 | 1993 | 1994 | 1978 | 1994 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.72 | 1.27 | 1.17 | 0.75 | 0.80 | 0.67 | 0.33 | 0.58 | 0.53 | 0.77 | 1.78 | 1.59 | 11.96 |
| Highest Precipitation (in.) | 4.04 | 4.25 | 2.48 | 2.42 | 4.28 | 1.47 | 1.68 | 3.02 | 2.45 | 2.84 | 4.86 | 4.94 | 4.94 |
| Year Highest Occurred | 2000 | 1986 | 1983 | 1978 | 1998 | 1995 | 1987 | 1999 | 1985 | 1979 | 1998 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.15 | 0.15 | 0.26 | 0.00 | 0.21 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 | 0.20 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1999 | 1987 | 1992 | 1999 | 1999 | 1998 | 1999 | 1978 | 1976 | 1976 | 1987 |
| Heating Degree Days (F) | 1081. | 839. | 800. | 633. | 429. | 207. | 89. | 83. | 251. | 542. | 866. | 1096. | 6916. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 22. | 107. | 70. | 16. | 0. | 0. | 0. | 216. |