| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.1 | 62.1 | 68.0 | 76.3 | 85.2 | 93.0 | 97.7 | 96.3 | 91.1 | 81.3 | 65.2 | 54.3 | 77.1 |
| Highest Mean Max. Temperature (F) | 60.5 | 69.1 | 75.9 | 83.9 | 90.9 | 97.6 | 102.0 | 99.8 | 95.9 | 87.5 | 72.4 | 61.5 | 102.0 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1981 | 1988 | 1998 | 1974 | 1978 | 1995 | 1979 | 1988 |
| Lowest Mean Max. Temperature (F) | 45.8 | 57.8 | 60.8 | 68.8 | 74.4 | 87.3 | 91.3 | 91.3 | 83.7 | 76.0 | 57.8 | 45.4 | 45.4 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1985 | 1984 | 1972 | 1985 | 1985 |
| Mean Temperature (F) | 46.1 | 51.6 | 56.1 | 61.7 | 69.1 | 76.0 | 80.4 | 79.4 | 74.9 | 66.1 | 53.3 | 45.3 | 63.3 |
| Highest Mean Temperature (F) | 52.2 | 55.4 | 60.1 | 67.4 | 75.2 | 80.1 | 84.7 | 83.2 | 78.8 | 70.3 | 58.6 | 51.8 | 84.7 |
| Year Highest Occurred | 1986 | 1992 | 1997 | 1989 | 1992 | 2000 | 1988 | 1998 | 1991 | 1991 | 1995 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 39.4 | 46.2 | 50.0 | 55.3 | 62.4 | 71.0 | 75.8 | 75.3 | 69.9 | 61.4 | 49.0 | 40.6 | 39.4 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 38.0 | 41.0 | 44.2 | 47.0 | 53.0 | 58.9 | 63.0 | 62.5 | 58.6 | 50.8 | 41.4 | 36.2 | 49.6 |
| Highest Mean Min. Temperature (F) | 44.4 | 46.9 | 49.3 | 51.9 | 59.4 | 63.2 | 68.2 | 66.7 | 62.5 | 56.8 | 47.4 | 44.1 | 68.2 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1989 | 1992 | 2000 | 1984 | 1983 | 1983 | 1987 | 1997 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | 31.7 | 34.6 | 37.2 | 41.7 | 49.0 | 53.2 | 58.3 | 58.1 | 53.3 | 44.8 | 36.5 | 29.0 | 29.0 |
| Year Lowest Occurred | 1976 | 1971 | 1977 | 1971 | 1977 | 1980 | 1973 | 1981 | 1981 | 1971 | 1974 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.51 | 1.55 | 1.43 | 0.52 | 0.24 | 0.06 | 0.00 | 0.01 | 0.24 | 0.38 | 0.74 | 0.95 | 7.63 |
| Highest Precipitation (in.) | 4.17 | 4.54 | 5.41 | 1.97 | 1.38 | 0.41 | 0.07 | 0.08 | 2.17 | 2.02 | 2.38 | 3.28 | 5.41 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1988 | 1998 | 1998 | 1984 | 1983 | 1976 | 1996 | 1984 | 1977 | 1991 |
| Lowest Precipitation (in.) | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1977 | 1972 | 1997 | 1999 | 1999 | 2000 | 2000 | 2000 | 1999 | 2000 | 1999 | 1976 |
| Heating Degree Days (F) | 587. | 377. | 288. | 155. | 50. | 2. | 0. | 0. | 3. | 79. | 354. | 612. | 2507. |
| Cooling Degree Days (F) | 0. | 0. | 11. | 55. | 178. | 331. | 476. | 446. | 298. | 111. | 3. | 0. | 1909. |