| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.9 | 59.2 | 66.7 | 74.5 | 82.6 | 90.1 | 91.5 | 89.2 | 82.8 | 74.5 | 62.7 | 54.8 | 73.5 |
| Highest Mean Max. Temperature (F) | 61.1 | 68.0 | 76.2 | 83.2 | 91.2 | 98.1 | 99.3 | 94.4 | 90.4 | 80.4 | 71.3 | 61.7 | 99.3 |
| Year Highest Occurred | 2000 | 2000 | 1974 | 1989 | 1996 | 1990 | 1994 | 1983 | 1977 | 1979 | 1999 | 1973 | 1994 |
| Lowest Mean Max. Temperature (F) | 46.1 | 49.9 | 62.0 | 65.8 | 76.4 | 85.0 | 82.5 | 82.4 | 74.6 | 68.1 | 54.7 | 48.1 | 46.1 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1992 | 1984 | 1976 | 1971 | 1974 | 1976 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 38.0 | 42.3 | 49.1 | 57.2 | 66.3 | 74.5 | 76.9 | 75.1 | 68.4 | 58.6 | 46.8 | 38.9 | 57.7 |
| Highest Mean Temperature (F) | 43.1 | 49.0 | 55.8 | 62.5 | 73.2 | 80.7 | 81.2 | 78.7 | 74.2 | 62.1 | 52.7 | 44.1 | 81.2 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1989 | 1996 | 1990 | 1980 | 2000 | 1977 | 1998 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 32.7 | 36.0 | 44.9 | 51.1 | 62.5 | 71.4 | 71.6 | 71.1 | 62.6 | 52.0 | 40.9 | 33.0 | 32.7 |
| Year Lowest Occurred | 1979 | 1985 | 1988 | 1997 | 1983 | 1973 | 1976 | 1971 | 1974 | 1976 | 2000 | 1989 | 1979 |
| Mean Min. Temperature (F) | 22.1 | 25.4 | 31.5 | 39.8 | 49.9 | 58.8 | 62.2 | 61.0 | 53.9 | 42.6 | 30.8 | 23.0 | 41.8 |
| Highest Mean Min. Temperature (F) | 25.8 | 30.5 | 35.3 | 44.8 | 55.1 | 63.2 | 65.1 | 64.3 | 58.5 | 47.9 | 36.7 | 27.7 | 65.1 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1981 | 1996 | 1990 | 1993 | 1977 | 1998 | 1998 | 1978 | 1980 | 1993 |
| Lowest Mean Min. Temperature (F) | 17.5 | 19.2 | 26.3 | 34.8 | 44.2 | 53.7 | 60.1 | 57.4 | 50.1 | 35.9 | 25.3 | 17.5 | 17.5 |
| Year Lowest Occurred | 1977 | 1985 | 1996 | 1973 | 1983 | 1973 | 1984 | 1973 | 1984 | 1976 | 1993 | 1989 | 1977 |
| Mean Precipitation (in.) | 0.34 | 0.36 | 0.37 | 0.60 | 1.99 | 1.97 | 2.65 | 2.87 | 2.18 | 1.42 | 0.61 | 0.48 | 15.84 |
| Highest Precipitation (in.) | 1.59 | 1.53 | 1.84 | 2.24 | 6.25 | 4.87 | 8.45 | 8.35 | 5.08 | 6.66 | 2.26 | 3.29 | 8.45 |
| Year Highest Occurred | 1992 | 1975 | 1998 | 1977 | 1992 | 2000 | 1991 | 1974 | 1974 | 1981 | 1978 | 1991 | 1991 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.12 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1998 | 1997 | 1996 | 1989 | 1990 | 1980 | 2000 | 2000 | 1995 | 1993 | 1996 | 1998 |
| Heating Degree Days (F) | 837. | 637. | 493. | 254. | 75. | 4. | 0. | 2. | 48. | 211. | 548. | 810. | 3919. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 17. | 114. | 287. | 367. | 315. | 148. | 11. | 0. | 0. | 1259. |