| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.7 | 44.5 | 53.6 | 61.7 | 70.7 | 80.3 | 89.2 | 88.0 | 77.2 | 64.3 | 47.5 | 37.2 | 62.6 |
| Highest Mean Max. Temperature (F) | 46.2 | 52.4 | 63.0 | 71.8 | 80.9 | 87.6 | 94.6 | 93.1 | 85.4 | 74.5 | 57.0 | 43.9 | 94.6 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1998 | 1971 | 1990 | 1988 | 1999 | 1973 | 1998 |
| Lowest Mean Max. Temperature (F) | 25.0 | 31.8 | 46.2 | 53.5 | 64.5 | 73.6 | 78.8 | 80.7 | 68.0 | 57.6 | 35.3 | 20.9 | 20.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1984 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 30.2 | 36.7 | 43.8 | 50.6 | 58.6 | 67.2 | 74.7 | 73.9 | 64.2 | 52.8 | 39.9 | 30.6 | 51.9 |
| Highest Mean Temperature (F) | 38.9 | 42.7 | 49.6 | 56.8 | 65.2 | 73.0 | 79.2 | 79.5 | 70.8 | 60.8 | 46.9 | 39.1 | 79.5 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1998 | 1971 | 1990 | 1988 | 1999 | 1973 | 1971 |
| Lowest Mean Temperature (F) | 17.0 | 23.8 | 36.6 | 45.0 | 54.9 | 62.6 | 66.0 | 68.8 | 57.2 | 47.8 | 28.5 | 13.3 | 13.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1984 | 1993 | 1980 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.6 | 28.8 | 34.0 | 39.4 | 46.6 | 54.2 | 60.3 | 59.8 | 51.2 | 41.3 | 32.4 | 24.1 | 41.3 |
| Highest Mean Min. Temperature (F) | 32.4 | 35.5 | 39.1 | 43.1 | 51.7 | 59.3 | 64.9 | 65.8 | 57.7 | 47.1 | 38.0 | 34.3 | 65.8 |
| Year Highest Occurred | 1978 | 1983 | 1978 | 1992 | 1993 | 1977 | 1975 | 1971 | 1998 | 1988 | 1995 | 1973 | 1971 |
| Lowest Mean Min. Temperature (F) | 9.0 | 15.7 | 27.1 | 34.9 | 42.6 | 50.1 | 53.2 | 54.7 | 46.3 | 37.4 | 21.7 | 5.7 | 5.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1999 | 1991 | 1993 | 1980 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.39 | 1.14 | 1.41 | 1.27 | 1.27 | 0.74 | 0.39 | 0.30 | 0.76 | 0.76 | 1.38 | 1.38 | 12.19 |
| Highest Precipitation (in.) | 2.74 | 3.70 | 3.46 | 2.34 | 4.40 | 2.10 | 1.62 | 1.81 | 2.93 | 2.59 | 3.36 | 4.23 | 4.40 |
| Year Highest Occurred | 1997 | 1986 | 1989 | 1978 | 1998 | 1993 | 1982 | 1979 | 1986 | 2000 | 1988 | 1983 | 1998 |
| Lowest Precipitation (in.) | 0.20 | 0.18 | 0.17 | 0.19 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.09 | 0.00 |
| Year Lowest Occurred | 1985 | 1997 | 1994 | 1977 | 1992 | 1989 | 1999 | 1998 | 1999 | 1988 | 1976 | 1976 | 1992 |
| Heating Degree Days (F) | 1095. | 807. | 672. | 451. | 245. | 71. | 12. | 15. | 110. | 398. | 768. | 1083. | 5727. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 31. | 122. | 297. | 275. | 74. | 5. | 0. | 0. | 807. |