| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.7 | 57.7 | 60.1 | 64.3 | 70.7 | 77.8 | 84.5 | 84.6 | 81.9 | 74.0 | 60.4 | 54.7 | 68.8 |
| Highest Mean Max. Temperature (F) | 60.2 | 67.1 | 65.8 | 71.1 | 79.8 | 82.7 | 89.7 | 89.4 | 88.0 | 81.0 | 67.9 | 60.2 | 89.7 |
| Year Highest Occurred | 1984 | 1988 | 1972 | 1987 | 1992 | 1985 | 1996 | 1998 | 1974 | 1978 | 1995 | 1989 | 1996 |
| Lowest Mean Max. Temperature (F) | 50.1 | 50.1 | 54.2 | 57.3 | 62.1 | 72.3 | 77.5 | 78.8 | 72.7 | 66.1 | 53.1 | 47.9 | 47.9 |
| Year Lowest Occurred | 1973 | 1999 | 1999 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 43.4 | 46.2 | 48.0 | 50.6 | 55.5 | 61.1 | 66.0 | 65.4 | 62.2 | 56.0 | 47.5 | 43.0 | 53.7 |
| Highest Mean Temperature (F) | 47.2 | 51.3 | 53.0 | 55.2 | 61.2 | 65.6 | 69.9 | 68.4 | 65.7 | 59.6 | 53.7 | 47.9 | 69.9 |
| Year Highest Occurred | 1986 | 1995 | 1993 | 1989 | 1992 | 1977 | 1996 | 1998 | 1991 | 1991 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 39.5 | 41.0 | 43.8 | 45.6 | 50.1 | 57.1 | 62.0 | 62.3 | 58.2 | 52.6 | 41.9 | 36.7 | 36.7 |
| Year Lowest Occurred | 1982 | 1989 | 1985 | 1975 | 1977 | 1980 | 1987 | 1985 | 1986 | 1998 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 32.1 | 34.6 | 35.9 | 36.8 | 40.2 | 44.3 | 47.4 | 46.1 | 42.5 | 37.9 | 34.5 | 31.2 | 38.6 |
| Highest Mean Min. Temperature (F) | 41.9 | 40.7 | 42.2 | 41.0 | 44.4 | 48.9 | 51.0 | 49.3 | 46.2 | 43.6 | 40.8 | 38.8 | 51.0 |
| Year Highest Occurred | 1995 | 1996 | 1993 | 1989 | 1993 | 1977 | 1998 | 1983 | 1998 | 1979 | 1981 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 26.9 | 28.1 | 31.5 | 33.6 | 36.7 | 41.0 | 43.6 | 42.9 | 38.8 | 33.1 | 27.5 | 21.5 | 21.5 |
| Year Lowest Occurred | 1982 | 1990 | 1976 | 1998 | 1985 | 1994 | 1999 | 1973 | 1994 | 1971 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 9.91 | 8.78 | 7.40 | 3.08 | 1.61 | 0.32 | 0.10 | 0.21 | 0.87 | 2.77 | 6.89 | 7.83 | 49.77 |
| Highest Precipitation (in.) | 28.36 | 21.62 | 18.93 | 6.93 | 8.40 | 1.63 | 1.26 | 1.61 | 4.93 | 6.85 | 19.18 | 25.17 | 28.36 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1990 | 1992 | 1974 | 1976 | 1986 | 1979 | 1983 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.83 | 0.23 | 0.69 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.18 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1994 | 1985 | 1982 | 1999 | 2000 | 1999 | 1999 | 1995 | 1990 | 1989 | 1982 |
| Heating Degree Days (F) | 669. | 529. | 527. | 434. | 301. | 139. | 56. | 44. | 109. | 285. | 525. | 684. | 4302. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 20. | 84. | 54. | 26. | 3. | 0. | 0. | 193. |