| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.1 | 62.2 | 67.0 | 73.9 | 81.6 | 88.8 | 93.8 | 92.5 | 88.6 | 79.2 | 64.2 | 55.0 | 75.2 |
| Highest Mean Max. Temperature (F) | 62.1 | 68.1 | 73.3 | 80.8 | 89.7 | 94.6 | 99.6 | 97.4 | 94.0 | 84.8 | 72.7 | 62.2 | 99.6 |
| Year Highest Occurred | 1976 | 1991 | 1997 | 1987 | 1997 | 1985 | 1988 | 1998 | 1984 | 1991 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.6 | 57.6 | 60.9 | 67.1 | 71.8 | 82.4 | 89.1 | 88.4 | 80.9 | 72.8 | 57.8 | 49.0 | 49.0 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1994 | 1985 | 1985 |
| Mean Temperature (F) | 48.2 | 53.5 | 57.1 | 61.7 | 67.9 | 73.6 | 77.4 | 76.7 | 73.8 | 66.4 | 55.1 | 47.7 | 63.3 |
| Highest Mean Temperature (F) | 52.6 | 57.6 | 61.1 | 65.9 | 74.5 | 79.2 | 81.6 | 80.7 | 77.3 | 70.7 | 61.6 | 52.5 | 81.6 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1992 | 1997 | 1981 | 1988 | 1998 | 1979 | 1991 | 1995 | 1996 | 1988 |
| Lowest Mean Temperature (F) | 43.2 | 48.1 | 52.7 | 56.6 | 61.5 | 69.1 | 72.9 | 73.4 | 67.2 | 61.8 | 49.8 | 42.6 | 42.6 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1977 | 1980 | 1987 | 1980 | 1986 | 1984 | 1994 | 1985 | 1985 |
| Mean Min. Temperature (F) | 41.3 | 44.7 | 47.1 | 49.5 | 54.1 | 58.4 | 60.9 | 60.8 | 59.0 | 53.6 | 45.9 | 40.4 | 51.3 |
| Highest Mean Min. Temperature (F) | 48.6 | 49.1 | 51.8 | 53.3 | 59.2 | 63.8 | 64.1 | 63.9 | 62.1 | 56.7 | 50.8 | 46.5 | 64.1 |
| Year Highest Occurred | 1995 | 1983 | 1993 | 1992 | 1997 | 1981 | 1996 | 1998 | 1997 | 1992 | 1981 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 36.2 | 38.5 | 42.4 | 46.1 | 50.1 | 55.4 | 56.7 | 57.5 | 53.5 | 49.6 | 40.5 | 33.7 | 33.7 |
| Year Lowest Occurred | 1989 | 1989 | 1988 | 1975 | 1999 | 1980 | 1987 | 1986 | 1986 | 1971 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 4.18 | 3.77 | 3.15 | 1.17 | 0.60 | 0.18 | 0.05 | 0.05 | 0.37 | 1.00 | 2.59 | 2.76 | 19.87 |
| Highest Precipitation (in.) | 11.75 | 10.30 | 8.30 | 4.36 | 3.04 | 0.94 | 0.90 | 0.57 | 3.15 | 2.69 | 7.13 | 6.65 | 11.75 |
| Year Highest Occurred | 1995 | 1986 | 1983 | 1983 | 1998 | 1993 | 1974 | 1976 | 1989 | 1982 | 1981 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.23 | 0.19 | 0.07 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1995 | 1994 | 1985 | 1992 | 1996 | 2000 | 2000 | 1999 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 521. | 324. | 258. | 136. | 65. | 6. | 0. | 0. | 6. | 66. | 308. | 536. | 2226. |
| Cooling Degree Days (F) | 0. | 0. | 11. | 37. | 154. | 263. | 382. | 361. | 270. | 110. | 9. | 0. | 1597. |