| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.2 | 47.4 | 52.7 | 59.8 | 68.8 | 78.6 | 88.1 | 87.6 | 79.5 | 67.3 | 51.0 | 43.1 | 63.9 |
| Highest Mean Max. Temperature (F) | 51.1 | 58.2 | 60.7 | 69.5 | 80.8 | 84.8 | 93.9 | 92.9 | 86.1 | 77.7 | 62.3 | 52.3 | 93.9 |
| Year Highest Occurred | 1981 | 1991 | 1994 | 1987 | 1992 | 1974 | 1988 | 1971 | 1991 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 34.0 | 38.9 | 45.6 | 47.5 | 57.1 | 71.1 | 79.9 | 78.7 | 70.1 | 57.6 | 40.1 | 35.3 | 34.0 |
| Year Lowest Occurred | 1977 | 1989 | 1975 | 1975 | 1977 | 1995 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1977 |
| Mean Temperature (F) | 30.7 | 34.4 | 39.0 | 44.0 | 51.5 | 59.2 | 66.0 | 64.8 | 57.7 | 47.7 | 37.2 | 30.4 | 46.9 |
| Highest Mean Temperature (F) | 40.1 | 41.3 | 44.2 | 49.9 | 58.6 | 64.1 | 70.6 | 68.7 | 61.3 | 53.4 | 42.9 | 36.7 | 70.6 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1990 | 1992 | 1992 | 1988 | 1971 | 1991 | 1987 | 1995 | 1981 | 1988 |
| Lowest Mean Temperature (F) | 15.9 | 22.9 | 33.8 | 35.3 | 44.4 | 54.3 | 59.3 | 59.5 | 52.6 | 42.5 | 28.2 | 20.8 | 15.9 |
| Year Lowest Occurred | 1977 | 1989 | 1977 | 1975 | 1977 | 1980 | 1993 | 1976 | 1986 | 1984 | 1985 | 1990 | 1977 |
| Mean Min. Temperature (F) | 18.1 | 21.4 | 25.3 | 28.2 | 34.1 | 39.8 | 43.8 | 42.0 | 35.8 | 28.1 | 23.3 | 17.7 | 29.8 |
| Highest Mean Min. Temperature (F) | 29.2 | 30.0 | 32.5 | 32.4 | 38.6 | 45.3 | 48.3 | 46.3 | 40.9 | 32.8 | 29.5 | 27.0 | 48.3 |
| Year Highest Occurred | 1986 | 1986 | 1993 | 1990 | 1994 | 1992 | 1994 | 1983 | 1998 | 1979 | 1973 | 1981 | 1994 |
| Lowest Mean Min. Temperature (F) | -2.3 | 6.8 | 19.0 | 23.1 | 30.3 | 36.0 | 38.6 | 38.8 | 31.3 | 25.1 | 13.6 | 6.2 | -2.3 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1975 | 1974 | 1980 | 1993 | 1985 | 1971 | 1994 | 1985 | 1990 | 1977 |
| Mean Precipitation (in.) | 1.32 | 1.28 | 1.55 | 1.11 | 1.32 | 0.79 | 0.30 | 0.37 | 0.66 | 0.73 | 1.47 | 1.23 | 12.13 |
| Highest Precipitation (in.) | 3.65 | 5.08 | 3.34 | 3.24 | 4.30 | 1.93 | 1.29 | 1.56 | 2.21 | 1.95 | 3.85 | 4.17 | 5.08 |
| Year Highest Occurred | 1980 | 1986 | 1991 | 1995 | 1998 | 1998 | 1998 | 1999 | 1998 | 1979 | 1998 | 1983 | 1986 |
| Lowest Precipitation (in.) | 0.12 | 0.20 | 0.49 | 0.11 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.02 | 0.00 |
| Year Lowest Occurred | 1992 | 1971 | 1977 | 1977 | 1974 | 1974 | 1994 | 2000 | 1994 | 1978 | 1980 | 1976 | 1974 |
| Heating Degree Days (F) | 1066. | 856. | 806. | 630. | 423. | 203. | 74. | 73. | 232. | 537. | 835. | 1073. | 6808. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 29. | 102. | 68. | 11. | 0. | 0. | 0. | 212. |