| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.7 | 60.5 | 65.4 | 72.3 | 79.9 | 88.0 | 94.2 | 93.1 | 87.8 | 78.3 | 64.2 | 54.5 | 74.3 |
| Highest Mean Max. Temperature (F) | 58.7 | 65.4 | 72.9 | 79.9 | 88.1 | 94.6 | 99.5 | 97.5 | 92.7 | 83.6 | 71.6 | 59.6 | 99.5 |
| Year Highest Occurred | 2000 | 1988 | 1972 | 1987 | 1997 | 1981 | 1996 | 1998 | 1979 | 1978 | 1995 | 1979 | 1996 |
| Lowest Mean Max. Temperature (F) | 47.4 | 57.2 | 59.8 | 64.9 | 69.9 | 80.9 | 87.7 | 85.3 | 81.2 | 73.0 | 57.6 | 47.0 | 47.0 |
| Year Lowest Occurred | 1985 | 1971 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1972 | 1985 | 1985 |
| Mean Temperature (F) | 46.2 | 51.6 | 55.7 | 60.8 | 67.2 | 74.1 | 79.0 | 78.1 | 74.2 | 66.3 | 54.8 | 46.4 | 62.9 |
| Highest Mean Temperature (F) | 51.1 | 55.1 | 61.2 | 66.7 | 74.3 | 80.7 | 83.6 | 81.9 | 78.3 | 71.2 | 60.7 | 51.5 | 83.6 |
| Year Highest Occurred | 2000 | 1991 | 1972 | 1987 | 1997 | 1981 | 1996 | 1996 | 1984 | 1991 | 1995 | 1983 | 1996 |
| Lowest Mean Temperature (F) | 39.7 | 48.0 | 51.4 | 54.2 | 59.8 | 68.6 | 73.8 | 73.0 | 69.4 | 62.4 | 49.5 | 40.4 | 39.7 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1994 | 1985 | 1972 |
| Mean Min. Temperature (F) | 38.7 | 42.7 | 45.9 | 49.2 | 54.5 | 60.1 | 63.8 | 63.1 | 60.5 | 54.3 | 45.3 | 38.3 | 51.4 |
| Highest Mean Min. Temperature (F) | 45.2 | 46.9 | 50.5 | 54.2 | 60.4 | 66.8 | 68.5 | 66.9 | 64.5 | 58.9 | 49.8 | 44.6 | 68.5 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1990 | 1997 | 1981 | 1988 | 1996 | 1984 | 1991 | 1995 | 1983 | 1988 |
| Lowest Mean Min. Temperature (F) | 31.6 | 38.8 | 41.7 | 43.5 | 49.2 | 54.1 | 60.0 | 60.6 | 57.6 | 50.0 | 40.7 | 33.1 | 31.6 |
| Year Lowest Occurred | 1972 | 1971 | 1985 | 1975 | 1971 | 1975 | 1987 | 1975 | 1986 | 1981 | 1994 | 1990 | 1972 |
| Mean Precipitation (in.) | 1.67 | 1.69 | 1.40 | 0.46 | 0.32 | 0.05 | 0.03 | 0.03 | 0.28 | 0.44 | 0.94 | 1.08 | 8.39 |
| Highest Precipitation (in.) | 4.26 | 8.10 | 3.64 | 1.85 | 2.62 | 0.26 | 0.44 | 0.64 | 2.91 | 2.38 | 4.58 | 2.71 | 8.10 |
| Year Highest Occurred | 1995 | 1998 | 1978 | 1988 | 1998 | 1998 | 1974 | 1976 | 1983 | 2000 | 1972 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.15 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1976 | 1974 | 1972 | 1992 | 1992 | 1999 | 2000 | 2000 | 1999 | 1999 | 1995 | 1975 | 1972 |
| Heating Degree Days (F) | 582. | 376. | 299. | 173. | 85. | 12. | 0. | 0. | 3. | 69. | 314. | 577. | 2490. |
| Cooling Degree Days (F) | 0. | 0. | 9. | 46. | 153. | 282. | 435. | 407. | 278. | 110. | 6. | 0. | 1726. |