| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.9 | 62.4 | 67.5 | 74.1 | 81.6 | 89.0 | 94.6 | 93.5 | 88.8 | 79.6 | 65.3 | 55.1 | 75.5 |
| Highest Mean Max. Temperature (F) | 60.2 | 68.3 | 73.3 | 80.7 | 88.6 | 95.2 | 99.0 | 97.7 | 93.8 | 84.5 | 72.3 | 60.2 | 99.0 |
| Year Highest Occurred | 2000 | 1988 | 1984 | 1987 | 1997 | 1981 | 1988 | 1992 | 1984 | 1991 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.7 | 58.1 | 61.2 | 67.1 | 73.1 | 82.2 | 89.0 | 86.5 | 82.9 | 74.4 | 58.2 | 47.7 | 47.7 |
| Year Lowest Occurred | 1972 | 1998 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1972 | 1985 | 1985 |
| Mean Temperature (F) | 45.9 | 51.5 | 55.7 | 60.6 | 67.2 | 73.4 | 78.1 | 77.1 | 73.1 | 65.1 | 53.4 | 45.3 | 62.2 |
| Highest Mean Temperature (F) | 51.1 | 55.0 | 59.8 | 65.6 | 73.2 | 78.9 | 82.0 | 80.3 | 76.7 | 69.7 | 59.1 | 50.9 | 82.0 |
| Year Highest Occurred | 1986 | 1992 | 1993 | 1987 | 1997 | 1981 | 1996 | 1998 | 1984 | 1991 | 1995 | 1983 | 1996 |
| Lowest Mean Temperature (F) | 39.9 | 47.1 | 50.9 | 54.1 | 61.2 | 69.2 | 73.1 | 72.6 | 68.6 | 60.6 | 48.2 | 40.9 | 39.9 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1990 | 1972 |
| Mean Min. Temperature (F) | 36.8 | 40.5 | 43.9 | 47.0 | 52.7 | 57.7 | 61.5 | 60.6 | 57.3 | 50.6 | 41.4 | 35.4 | 48.8 |
| Highest Mean Min. Temperature (F) | 44.1 | 45.9 | 48.9 | 51.8 | 57.7 | 62.6 | 65.1 | 64.1 | 60.2 | 54.8 | 46.7 | 43.3 | 65.1 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1990 | 1997 | 1981 | 1985 | 1998 | 1998 | 1991 | 1981 | 1983 | 1985 |
| Lowest Mean Min. Temperature (F) | 29.8 | 35.6 | 38.4 | 41.0 | 48.6 | 54.5 | 57.1 | 57.3 | 53.8 | 45.3 | 36.3 | 27.8 | 27.8 |
| Year Lowest Occurred | 1989 | 1971 | 1971 | 1975 | 1977 | 1980 | 1987 | 1991 | 1973 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.93 | 1.97 | 1.65 | 0.63 | 0.44 | 0.07 | 0.04 | 0.05 | 0.28 | 0.56 | 1.11 | 1.22 | 9.95 |
| Highest Precipitation (in.) | 5.77 | 8.08 | 3.98 | 2.40 | 3.87 | 0.43 | 0.52 | 0.73 | 2.77 | 2.58 | 4.99 | 3.54 | 8.08 |
| Year Highest Occurred | 1995 | 1998 | 1978 | 1988 | 1998 | 1998 | 1992 | 1976 | 1983 | 2000 | 1972 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.12 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1972 | 1992 | 1992 | 1999 | 2000 | 2000 | 1999 | 1999 | 1995 | 1989 | 1972 |
| Heating Degree Days (F) | 594. | 380. | 298. | 174. | 64. | 6. | 0. | 0. | 4. | 84. | 354. | 612. | 2570. |
| Cooling Degree Days (F) | 0. | 0. | 9. | 40. | 130. | 255. | 404. | 373. | 246. | 87. | 3. | 0. | 1547. |