| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 24.7 | 31.4 | 43.4 | 58.5 | 70.9 | 80.3 | 85.4 | 83.0 | 74.5 | 61.5 | 41.9 | 28.5 | 57.0 |
| Highest Mean Max. Temperature (F) | 38.0 | 44.4 | 53.4 | 67.4 | 78.4 | 88.5 | 93.4 | 90.7 | 82.2 | 67.1 | 57.4 | 38.0 | 93.4 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1981 | 1977 | 1988 | 1974 | 1983 | 1978 | 1974 | 1999 | 1986 | 1974 |
| Lowest Mean Max. Temperature (F) | 11.2 | 16.3 | 32.4 | 49.6 | 63.3 | 74.1 | 74.4 | 74.7 | 65.7 | 56.7 | 29.6 | 10.0 | 10.0 |
| Year Lowest Occurred | 1979 | 1979 | 1984 | 1995 | 1995 | 1993 | 1992 | 1992 | 1993 | 1995 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 14.7 | 21.8 | 33.5 | 47.4 | 59.6 | 69.3 | 74.1 | 71.8 | 62.4 | 49.3 | 32.6 | 19.0 | 46.3 |
| Highest Mean Temperature (F) | 27.6 | 33.6 | 40.9 | 54.8 | 66.2 | 76.5 | 78.9 | 78.4 | 68.5 | 54.6 | 43.6 | 26.9 | 78.9 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1977 | 1977 | 1988 | 1974 | 1983 | 1978 | 1973 | 1999 | 1986 | 1974 |
| Lowest Mean Temperature (F) | 0.4 | 5.4 | 25.6 | 41.4 | 53.2 | 64.8 | 65.6 | 65.5 | 55.8 | 44.7 | 21.9 | 1.1 | 0.4 |
| Year Lowest Occurred | 1978 | 1979 | 1984 | 1995 | 1997 | 1998 | 1992 | 1992 | 1993 | 1987 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 4.6 | 12.1 | 23.6 | 36.3 | 48.3 | 58.2 | 62.8 | 60.6 | 50.2 | 37.1 | 23.2 | 9.5 | 35.5 |
| Highest Mean Min. Temperature (F) | 17.4 | 25.7 | 32.1 | 42.7 | 54.1 | 64.4 | 66.5 | 66.1 | 55.0 | 42.8 | 29.7 | 18.2 | 66.5 |
| Year Highest Occurred | 1992 | 1998 | 1973 | 1977 | 1987 | 1988 | 1989 | 1983 | 1998 | 1973 | 1999 | 1997 | 1989 |
| Lowest Mean Min. Temperature (F) | -10.4 | -5.5 | 14.9 | 31.3 | 42.8 | 53.6 | 56.7 | 56.2 | 44.0 | 31.7 | 14.2 | -7.7 | -10.4 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1996 | 1997 | 1982 | 1992 | 1992 | 1984 | 1976 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.54 | 0.56 | 1.86 | 2.73 | 3.41 | 3.59 | 2.85 | 2.94 | 2.57 | 1.86 | 1.42 | 0.58 | 24.91 |
| Highest Precipitation (in.) | 1.55 | 1.97 | 5.11 | 8.39 | 9.22 | 14.19 | 7.60 | 10.82 | 7.80 | 7.22 | 4.45 | 2.18 | 14.19 |
| Year Highest Occurred | 1988 | 1971 | 1977 | 1984 | 1972 | 1984 | 1992 | 1975 | 1986 | 1998 | 1983 | 1982 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.46 | 1.06 | 1.16 | 0.21 | 0.27 | 0.23 | 0.13 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1990 | 1986 | 1994 | 1987 | 1981 | 1988 | 1975 | 1983 | 1998 | 1988 | 1980 | 1986 | 1990 |
| Heating Degree Days (F) | 1562. | 1211. | 977. | 532. | 215. | 38. | 12. | 23. | 143. | 488. | 973. | 1425. | 7599. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 47. | 166. | 294. | 235. | 62. | 0. | 0. | 0. | 807. |