| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.1 | 45.4 | 54.6 | 63.3 | 73.3 | 84.6 | 91.8 | 90.0 | 80.5 | 67.3 | 51.1 | 40.4 | 65.1 |
| Highest Mean Max. Temperature (F) | 46.0 | 56.4 | 62.3 | 72.9 | 79.3 | 90.7 | 95.6 | 94.0 | 87.9 | 73.9 | 61.1 | 46.1 | 95.6 |
| Year Highest Occurred | 1999 | 1995 | 1997 | 1992 | 1992 | 1988 | 1994 | 1994 | 1979 | 1988 | 1999 | 1976 | 1994 |
| Lowest Mean Max. Temperature (F) | 29.6 | 36.8 | 48.5 | 54.3 | 65.7 | 76.1 | 86.3 | 86.3 | 74.3 | 58.2 | 44.2 | 31.3 | 29.6 |
| Year Lowest Occurred | 1984 | 1984 | 1977 | 1975 | 1995 | 1998 | 1993 | 1976 | 1986 | 1984 | 1992 | 1985 | 1984 |
| Mean Temperature (F) | 29.7 | 34.8 | 42.8 | 50.2 | 59.0 | 68.5 | 75.5 | 73.9 | 64.9 | 53.5 | 40.3 | 31.0 | 52.0 |
| Highest Mean Temperature (F) | 37.0 | 43.7 | 48.8 | 57.1 | 63.6 | 73.7 | 78.7 | 77.8 | 70.7 | 59.6 | 47.0 | 36.1 | 78.7 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1988 | 1989 | 1994 | 1979 | 1988 | 1999 | 1995 | 1989 |
| Lowest Mean Temperature (F) | 21.3 | 25.9 | 36.6 | 43.2 | 53.8 | 62.0 | 68.8 | 70.0 | 59.2 | 46.3 | 33.7 | 23.1 | 21.3 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1995 | 1998 | 1993 | 1975 | 1986 | 1984 | 1992 | 1990 | 1984 |
| Mean Min. Temperature (F) | 20.3 | 24.1 | 30.9 | 37.0 | 44.6 | 52.3 | 59.1 | 57.7 | 49.2 | 39.6 | 29.4 | 21.6 | 38.8 |
| Highest Mean Min. Temperature (F) | 28.5 | 31.4 | 36.7 | 41.7 | 48.5 | 56.7 | 62.4 | 61.5 | 54.9 | 45.3 | 34.4 | 27.2 | 62.4 |
| Year Highest Occurred | 2000 | 1986 | 1986 | 1990 | 1994 | 1988 | 1988 | 1994 | 1990 | 1988 | 1981 | 1980 | 1988 |
| Lowest Mean Min. Temperature (F) | 11.9 | 15.1 | 23.5 | 32.1 | 39.2 | 47.9 | 51.4 | 52.2 | 42.9 | 34.3 | 23.3 | 13.0 | 11.9 |
| Year Lowest Occurred | 1979 | 1984 | 1976 | 1975 | 1975 | 1998 | 1993 | 1975 | 1985 | 1984 | 1992 | 1990 | 1979 |
| Mean Precipitation (in.) | 2.14 | 1.91 | 1.99 | 1.93 | 2.26 | 1.08 | 0.79 | 1.02 | 1.63 | 2.10 | 1.88 | 1.50 | 20.23 |
| Highest Precipitation (in.) | 4.57 | 5.01 | 4.84 | 5.58 | 7.13 | 6.17 | 1.97 | 3.19 | 9.14 | 4.98 | 3.98 | 6.02 | 9.14 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1999 | 1995 | 1998 | 1985 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.65 | 0.08 | 0.26 | 0.23 | 0.34 | 0.00 | 0.00 | 0.01 | 0.00 | 0.04 | 0.10 | 0.10 | 0.00 |
| Year Lowest Occurred | 1989 | 1988 | 1997 | 1977 | 1972 | 1980 | 1978 | 1985 | 1979 | 1999 | 1999 | 1989 | 1980 |
| Heating Degree Days (F) | 1094. | 848. | 690. | 450. | 218. | 54. | 3. | 4. | 96. | 365. | 744. | 1054. | 5620. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 31. | 157. | 327. | 277. | 91. | 6. | 0. | 0. | 893. |