| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.8 | 61.7 | 66.8 | 74.2 | 82.7 | 90.7 | 96.3 | 95.0 | 89.7 | 80.0 | 64.5 | 55.3 | 76.0 |
| Highest Mean Max. Temperature (F) | 59.0 | 68.4 | 73.0 | 81.8 | 90.6 | 95.9 | 101.8 | 99.0 | 95.4 | 87.2 | 72.7 | 61.9 | 101.8 |
| Year Highest Occurred | 1991 | 1991 | 1997 | 1987 | 1992 | 1981 | 1988 | 1992 | 1984 | 1991 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.8 | 57.9 | 60.0 | 67.6 | 72.2 | 84.7 | 90.6 | 88.1 | 81.8 | 74.0 | 58.7 | 48.3 | 48.3 |
| Year Lowest Occurred | 1972 | 1999 | 1991 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1981 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 46.3 | 51.7 | 56.0 | 61.3 | 68.5 | 74.9 | 78.9 | 77.4 | 73.2 | 65.2 | 53.5 | 46.2 | 62.8 |
| Highest Mean Temperature (F) | 51.3 | 55.6 | 60.0 | 65.7 | 74.7 | 79.6 | 84.0 | 81.4 | 78.2 | 70.6 | 60.2 | 51.9 | 84.0 |
| Year Highest Occurred | 1995 | 1991 | 1997 | 1987 | 1992 | 1981 | 1988 | 1998 | 1984 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 41.3 | 46.5 | 51.5 | 55.6 | 61.8 | 69.3 | 74.3 | 71.4 | 67.4 | 60.4 | 49.0 | 40.8 | 40.8 |
| Year Lowest Occurred | 1972 | 1990 | 1991 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1981 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 37.8 | 41.7 | 45.1 | 48.4 | 54.3 | 59.0 | 61.4 | 59.8 | 56.6 | 50.4 | 42.5 | 37.1 | 49.5 |
| Highest Mean Min. Temperature (F) | 45.6 | 46.6 | 50.6 | 52.0 | 59.5 | 63.2 | 66.8 | 64.7 | 62.2 | 54.2 | 47.9 | 43.9 | 66.8 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1992 | 1997 | 1981 | 1996 | 1998 | 1998 | 1987 | 1997 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 32.9 | 35.1 | 40.3 | 43.7 | 50.0 | 53.9 | 58.0 | 54.6 | 50.8 | 45.8 | 39.3 | 30.9 | 30.9 |
| Year Lowest Occurred | 1972 | 1990 | 1985 | 1975 | 1977 | 1980 | 1983 | 1976 | 1972 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 4.26 | 3.89 | 3.54 | 1.43 | 0.76 | 0.25 | 0.07 | 0.08 | 0.40 | 1.23 | 2.80 | 3.36 | 22.07 |
| Highest Precipitation (in.) | 11.98 | 9.48 | 11.19 | 4.06 | 3.83 | 1.75 | 1.68 | 0.78 | 1.85 | 3.67 | 7.38 | 14.04 | 14.04 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1996 | 1998 | 1995 | 1974 | 1976 | 1989 | 1982 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.46 | 0.14 | 0.17 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1971 | 1988 | 1977 | 1992 | 1994 | 2000 | 2000 | 1995 | 1995 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 579. | 372. | 289. | 157. | 57. | 4. | 0. | 0. | 10. | 88. | 350. | 582. | 2488. |
| Cooling Degree Days (F) | 0. | 0. | 9. | 45. | 165. | 299. | 430. | 385. | 255. | 94. | 5. | 0. | 1687. |