| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.7 | 62.4 | 67.9 | 75.4 | 83.8 | 91.2 | 95.8 | 94.5 | 89.4 | 80.4 | 65.7 | 55.2 | 76.4 |
| Highest Mean Max. Temperature (F) | 60.7 | 68.5 | 74.5 | 83.7 | 90.4 | 95.1 | 99.4 | 98.2 | 94.4 | 88.9 | 75.7 | 61.4 | 99.4 |
| Year Highest Occurred | 2000 | 1991 | 1972 | 2000 | 2000 | 1981 | 1988 | 1992 | 1999 | 1999 | 1999 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 46.5 | 57.3 | 60.4 | 67.0 | 73.2 | 84.5 | 91.0 | 86.6 | 81.7 | 74.5 | 57.9 | 45.2 | 45.2 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1985 | 1972 | 1972 | 1985 | 1985 |
| Mean Temperature (F) | 45.3 | 51.2 | 56.0 | 61.3 | 68.9 | 75.7 | 80.4 | 79.0 | 73.9 | 64.6 | 52.4 | 44.3 | 62.8 |
| Highest Mean Temperature (F) | 51.7 | 56.8 | 61.0 | 66.4 | 75.4 | 79.8 | 84.1 | 81.8 | 78.9 | 70.8 | 58.6 | 50.4 | 84.1 |
| Year Highest Occurred | 1995 | 2000 | 1994 | 1990 | 1992 | 2000 | 1999 | 1998 | 1999 | 1991 | 1999 | 1977 | 1999 |
| Lowest Mean Temperature (F) | 39.1 | 45.3 | 50.5 | 54.9 | 61.7 | 71.3 | 75.7 | 73.2 | 68.8 | 59.3 | 48.2 | 39.5 | 39.1 |
| Year Lowest Occurred | 1972 | 1971 | 1977 | 1975 | 1977 | 1980 | 1987 | 1976 | 1985 | 1971 | 2000 | 1985 | 1972 |
| Mean Min. Temperature (F) | 35.8 | 40.0 | 44.0 | 47.1 | 53.9 | 60.2 | 65.0 | 63.4 | 58.3 | 48.8 | 39.1 | 33.4 | 49.1 |
| Highest Mean Min. Temperature (F) | 43.2 | 48.3 | 49.2 | 52.5 | 60.7 | 64.7 | 69.7 | 67.7 | 63.4 | 54.8 | 44.1 | 40.7 | 69.7 |
| Year Highest Occurred | 1995 | 2000 | 1994 | 1990 | 1992 | 2000 | 1999 | 1999 | 1999 | 1991 | 1997 | 1977 | 1999 |
| Lowest Mean Min. Temperature (F) | 28.9 | 33.1 | 36.6 | 41.7 | 49.2 | 56.0 | 60.2 | 59.8 | 53.6 | 42.9 | 34.3 | 25.5 | 25.5 |
| Year Lowest Occurred | 1976 | 1974 | 1977 | 1971 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.31 | 1.19 | 1.39 | 0.47 | 0.23 | 0.07 | 0.01 | 0.04 | 0.20 | 0.28 | 0.55 | 0.70 | 6.44 |
| Highest Precipitation (in.) | 3.70 | 5.64 | 4.74 | 1.87 | 2.32 | 0.47 | 0.20 | 0.76 | 1.76 | 1.13 | 2.35 | 2.30 | 5.64 |
| Year Highest Occurred | 1993 | 1998 | 1991 | 1988 | 1998 | 1998 | 1984 | 1983 | 1976 | 1996 | 1987 | 1977 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 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 | 1975 | 1995 | 1972 | 1997 | 2000 | 2000 | 2000 | 2000 | 2000 | 1999 | 2000 | 2000 | 1975 |
| Heating Degree Days (F) | 612. | 387. | 295. | 169. | 59. | 2. | 0. | 0. | 10. | 110. | 382. | 642. | 2668. |
| Cooling Degree Days (F) | 0. | 0. | 14. | 56. | 178. | 322. | 478. | 432. | 276. | 98. | 3. | 0. | 1857. |