| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 60.1 | 64.5 | 72.3 | 79.8 | 86.4 | 90.5 | 91.9 | 91.1 | 86.1 | 77.5 | 68.1 | 61.0 | 77.4 |
| Highest Mean Max. Temperature (F) | 70.0 | 74.6 | 77.2 | 86.1 | 95.1 | 97.7 | 98.3 | 96.9 | 94.6 | 84.7 | 75.0 | 66.3 | 98.3 |
| Year Highest Occurred | 1998 | 1999 | 1974 | 1986 | 1998 | 1998 | 1998 | 1977 | 1977 | 1979 | 1985 | 1981 | 1998 |
| Lowest Mean Max. Temperature (F) | 50.9 | 55.8 | 65.8 | 70.8 | 78.4 | 86.6 | 82.6 | 83.5 | 76.1 | 70.1 | 58.4 | 55.6 | 50.9 |
| Year Lowest Occurred | 1979 | 1978 | 1981 | 1997 | 1976 | 1971 | 1976 | 1971 | 1974 | 1976 | 1976 | 2000 | 1979 |
| Mean Temperature (F) | 45.3 | 49.6 | 57.4 | 65.2 | 73.3 | 78.7 | 80.4 | 79.5 | 74.0 | 64.2 | 53.9 | 46.6 | 64.0 |
| Highest Mean Temperature (F) | 51.3 | 56.3 | 61.9 | 72.4 | 79.3 | 84.1 | 85.7 | 84.3 | 80.1 | 67.8 | 60.7 | 52.0 | 85.7 |
| Year Highest Occurred | 1998 | 2000 | 1974 | 1986 | 2000 | 1998 | 1998 | 1977 | 1977 | 1998 | 1985 | 1984 | 1998 |
| Lowest Mean Temperature (F) | 38.6 | 42.6 | 52.5 | 58.7 | 65.8 | 74.6 | 74.2 | 73.8 | 64.4 | 56.0 | 46.6 | 41.1 | 38.6 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1976 | 1979 | 1976 | 1971 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 30.5 | 34.6 | 42.4 | 50.6 | 60.1 | 66.8 | 68.9 | 67.9 | 61.9 | 50.9 | 39.7 | 32.1 | 50.5 |
| Highest Mean Min. Temperature (F) | 35.5 | 41.1 | 46.5 | 58.7 | 65.7 | 71.8 | 73.2 | 71.7 | 67.3 | 56.1 | 46.5 | 40.5 | 73.2 |
| Year Highest Occurred | 1993 | 2000 | 1974 | 1986 | 2000 | 1990 | 1996 | 1977 | 1986 | 1998 | 1985 | 1984 | 1996 |
| Lowest Mean Min. Temperature (F) | 25.6 | 27.2 | 36.2 | 45.4 | 53.2 | 62.0 | 63.9 | 63.2 | 52.7 | 41.9 | 34.8 | 26.2 | 25.6 |
| Year Lowest Occurred | 1976 | 1974 | 1996 | 1987 | 1976 | 1989 | 1988 | 1976 | 1974 | 1976 | 1976 | 1983 | 1976 |
| Mean Precipitation (in.) | 0.39 | 0.59 | 0.40 | 0.86 | 1.74 | 2.09 | 1.52 | 1.87 | 2.41 | 1.75 | 0.81 | 0.51 | 14.94 |
| Highest Precipitation (in.) | 1.74 | 2.09 | 3.00 | 3.60 | 5.34 | 5.75 | 7.33 | 5.15 | 9.24 | 6.18 | 6.64 | 2.37 | 9.24 |
| Year Highest Occurred | 1991 | 1992 | 1997 | 1981 | 1992 | 1999 | 1976 | 1980 | 1978 | 1986 | 1978 | 1982 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1999 | 1999 | 1996 | 1998 | 2000 | 1990 | 1983 | 2000 | 1998 | 1991 | 1999 | 1995 | 1999 |
| Heating Degree Days (F) | 611. | 436. | 251. | 90. | 20. | 0. | 0. | 0. | 17. | 100. | 342. | 573. | 2440. |
| Cooling Degree Days (F) | 0. | 3. | 14. | 96. | 275. | 409. | 477. | 451. | 288. | 74. | 9. | 0. | 2096. |