| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 63.7 | 66.2 | 68.3 | 74.0 | 80.2 | 89.5 | 96.3 | 96.6 | 91.4 | 82.3 | 71.6 | 64.7 | 78.7 |
| Highest Mean Max. Temperature (F) | 70.6 | 75.5 | 80.3 | 81.6 | 89.7 | 97.1 | 99.7 | 101.2 | 98.4 | 88.6 | 80.5 | 72.0 | 101.2 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1984 | 1981 | 1996 | 1998 | 1979 | 1999 | 1995 | 1980 | 1998 |
| Lowest Mean Max. Temperature (F) | 54.3 | 57.8 | 58.7 | 63.1 | 69.4 | 80.6 | 88.9 | 93.2 | 82.9 | 75.8 | 64.1 | 57.3 | 54.3 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1998 | 1982 | 1993 | 1989 | 1986 | 1972 | 1994 | 1971 | 1979 |
| Mean Temperature (F) | 51.8 | 53.2 | 54.7 | 58.8 | 64.4 | 71.6 | 77.6 | 78.1 | 74.1 | 66.2 | 57.3 | 52.1 | 63.3 |
| Highest Mean Temperature (F) | 58.2 | 59.2 | 62.1 | 64.4 | 71.5 | 78.1 | 81.0 | 82.5 | 78.8 | 70.7 | 62.7 | 58.5 | 82.5 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1997 | 1981 | 1996 | 1998 | 1984 | 1978 | 1995 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 46.1 | 47.9 | 47.9 | 52.2 | 57.5 | 66.0 | 72.3 | 74.4 | 67.0 | 62.3 | 50.3 | 46.0 | 46.0 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1998 | 1982 | 1993 | 1976 | 1986 | 1981 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 39.8 | 40.2 | 41.1 | 43.6 | 48.6 | 53.7 | 58.8 | 59.5 | 56.7 | 50.0 | 43.0 | 39.4 | 47.9 |
| Highest Mean Min. Temperature (F) | 45.7 | 46.0 | 46.3 | 47.4 | 53.4 | 59.2 | 63.8 | 63.8 | 63.0 | 53.6 | 46.7 | 45.0 | 63.8 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1992 | 1997 | 1981 | 1984 | 1998 | 1984 | 1987 | 1976 | 1980 | 1984 |
| Lowest Mean Min. Temperature (F) | 35.7 | 35.8 | 35.3 | 40.2 | 44.7 | 49.8 | 53.8 | 53.6 | 51.0 | 46.9 | 36.5 | 33.8 | 33.8 |
| Year Lowest Occurred | 1973 | 1990 | 1977 | 1998 | 1977 | 1980 | 1987 | 1975 | 1986 | 1994 | 1994 | 1987 | 1987 |
| Mean Precipitation (in.) | 4.18 | 4.07 | 3.72 | 1.10 | 0.73 | 0.21 | 0.27 | 0.23 | 0.63 | 0.72 | 1.44 | 2.00 | 19.30 |
| Highest Precipitation (in.) | 20.37 | 13.20 | 11.44 | 3.60 | 4.14 | 1.98 | 3.06 | 2.24 | 4.60 | 4.60 | 6.08 | 6.42 | 20.37 |
| Year Highest Occurred | 1993 | 1980 | 1991 | 1983 | 1977 | 1993 | 1984 | 1977 | 1976 | 1987 | 1982 | 1984 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.07 | 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 | 1976 | 1984 | 1972 | 1993 | 1997 | 2000 | 2000 | 1999 | 1996 | 1999 | 1992 | 1989 | 1976 |
| Heating Degree Days (F) | 412. | 332. | 317. | 218. | 127. | 22. | 0. | 0. | 8. | 71. | 247. | 407. | 2161. |
| Cooling Degree Days (F) | 0. | 1. | 12. | 31. | 109. | 219. | 390. | 404. | 279. | 106. | 16. | 5. | 1572. |