| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.8 | 61.3 | 69.7 | 78.2 | 85.7 | 91.6 | 94.3 | 92.9 | 86.4 | 77.7 | 65.8 | 57.6 | 76.4 |
| Highest Mean Max. Temperature (F) | 63.2 | 70.8 | 77.5 | 86.3 | 94.6 | 99.4 | 100.3 | 98.2 | 95.4 | 84.2 | 73.3 | 66.0 | 100.3 |
| Year Highest Occurred | 1998 | 1999 | 1974 | 1978 | 1996 | 1998 | 1998 | 1999 | 1977 | 1979 | 1999 | 1981 | 1998 |
| Lowest Mean Max. Temperature (F) | 45.1 | 51.8 | 62.6 | 69.4 | 79.5 | 87.5 | 85.6 | 85.0 | 75.7 | 70.7 | 57.1 | 45.3 | 45.1 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1992 | 1987 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 42.7 | 47.7 | 55.5 | 63.9 | 72.6 | 79.3 | 82.7 | 81.5 | 74.7 | 65.2 | 52.9 | 44.7 | 63.6 |
| Highest Mean Temperature (F) | 49.1 | 55.4 | 61.3 | 70.6 | 80.7 | 86.0 | 88.4 | 85.8 | 81.3 | 69.1 | 59.3 | 50.6 | 88.4 |
| Year Highest Occurred | 1998 | 2000 | 1974 | 1978 | 1996 | 1990 | 1998 | 1999 | 1977 | 1998 | 1999 | 1981 | 1998 |
| Lowest Mean Temperature (F) | 34.4 | 39.0 | 50.4 | 57.1 | 67.7 | 75.8 | 76.5 | 75.6 | 66.1 | 56.8 | 45.9 | 34.7 | 34.4 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1973 | 1976 | 1982 | 1976 | 1971 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 29.6 | 34.1 | 41.2 | 49.6 | 59.4 | 66.9 | 71.1 | 70.0 | 63.0 | 52.7 | 40.0 | 31.7 | 50.8 |
| Highest Mean Min. Temperature (F) | 35.0 | 40.9 | 45.9 | 55.5 | 66.8 | 73.3 | 76.5 | 73.8 | 67.7 | 57.5 | 45.3 | 36.8 | 76.5 |
| Year Highest Occurred | 1998 | 2000 | 1972 | 1986 | 1996 | 1990 | 1998 | 2000 | 1998 | 1998 | 1999 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 21.7 | 26.1 | 34.8 | 43.4 | 54.3 | 62.4 | 67.4 | 66.1 | 56.4 | 42.8 | 34.4 | 23.8 | 21.7 |
| Year Lowest Occurred | 1977 | 1978 | 1996 | 1973 | 1976 | 1995 | 1976 | 1971 | 1974 | 1976 | 1976 | 1989 | 1977 |
| Mean Precipitation (in.) | 0.72 | 0.81 | 0.73 | 1.34 | 3.05 | 2.58 | 1.78 | 2.38 | 3.51 | 1.78 | 0.77 | 0.67 | 20.12 |
| Highest Precipitation (in.) | 3.44 | 4.56 | 4.36 | 3.86 | 9.11 | 5.96 | 5.92 | 7.16 | 14.22 | 6.16 | 2.78 | 3.55 | 14.22 |
| Year Highest Occurred | 1983 | 1992 | 2000 | 1976 | 1975 | 1997 | 1991 | 1996 | 1980 | 1986 | 1984 | 1991 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.02 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1987 | 1999 | 1984 | 1991 | 1990 | 1990 | 1980 | 1994 | 2000 | 1992 | 1999 | 1999 | 1987 |
| Heating Degree Days (F) | 692. | 486. | 304. | 115. | 26. | 1. | 0. | 0. | 13. | 83. | 373. | 631. | 2724. |
| Cooling Degree Days (F) | 0. | 2. | 8. | 82. | 261. | 428. | 549. | 509. | 305. | 89. | 10. | 0. | 2243. |