| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.1 | 61.1 | 65.9 | 72.7 | 81.2 | 89.9 | 95.7 | 94.6 | 89.8 | 80.0 | 64.9 | 56.1 | 75.6 |
| Highest Mean Max. Temperature (F) | 61.1 | 67.4 | 72.2 | 80.4 | 90.8 | 96.2 | 101.1 | 98.3 | 95.2 | 86.8 | 72.8 | 62.6 | 101.1 |
| Year Highest Occurred | 1976 | 1988 | 1997 | 1987 | 1992 | 1981 | 1988 | 1998 | 1991 | 1991 | 1995 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 50.0 | 55.6 | 58.8 | 65.3 | 69.0 | 83.2 | 91.1 | 86.8 | 80.4 | 74.7 | 57.3 | 49.9 | 49.9 |
| Year Lowest Occurred | 1983 | 1998 | 1991 | 1983 | 1998 | 1980 | 1983 | 1976 | 1985 | 1975 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 45.5 | 50.1 | 54.1 | 59.1 | 66.1 | 73.1 | 76.9 | 75.8 | 72.2 | 64.6 | 53.4 | 46.0 | 61.4 |
| Highest Mean Temperature (F) | 49.5 | 54.3 | 59.4 | 64.0 | 73.7 | 78.3 | 81.4 | 79.6 | 75.9 | 69.4 | 59.7 | 50.9 | 81.4 |
| Year Highest Occurred | 1986 | 1997 | 1997 | 1992 | 1992 | 1981 | 1996 | 1998 | 1984 | 1991 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 40.5 | 46.4 | 48.8 | 52.6 | 59.2 | 67.8 | 73.5 | 71.1 | 66.7 | 60.6 | 48.5 | 41.0 | 40.5 |
| Year Lowest Occurred | 1972 | 1990 | 1991 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1975 | 1994 | 1990 | 1972 |
| Mean Min. Temperature (F) | 35.8 | 39.0 | 42.2 | 45.5 | 50.9 | 56.3 | 58.1 | 56.9 | 54.6 | 49.2 | 41.9 | 35.9 | 47.2 |
| Highest Mean Min. Temperature (F) | 44.1 | 44.3 | 47.1 | 50.8 | 58.0 | 61.2 | 62.9 | 60.8 | 59.4 | 54.1 | 47.2 | 43.1 | 62.9 |
| Year Highest Occurred | 1995 | 1996 | 1993 | 1997 | 1997 | 1997 | 1996 | 1998 | 1998 | 1992 | 1997 | 1983 | 1996 |
| Lowest Mean Min. Temperature (F) | 30.3 | 33.8 | 37.9 | 39.7 | 47.0 | 52.5 | 54.4 | 53.1 | 50.7 | 44.1 | 37.5 | 28.1 | 28.1 |
| Year Lowest Occurred | 1972 | 1974 | 1976 | 1975 | 1977 | 1980 | 1989 | 1989 | 1989 | 1971 | 1978 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.61 | 5.03 | 3.98 | 1.16 | 0.62 | 0.12 | 0.06 | 0.04 | 0.25 | 1.06 | 3.01 | 3.75 | 24.69 |
| Highest Precipitation (in.) | 18.64 | 17.26 | 13.91 | 5.12 | 3.34 | 1.28 | 1.44 | 0.48 | 2.41 | 3.32 | 7.69 | 10.93 | 18.64 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1982 | 1998 | 1993 | 1974 | 1976 | 1989 | 1982 | 1983 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.32 | 0.37 | 0.45 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1995 | 1994 | 1977 | 1985 | 1998 | 2000 | 2000 | 2000 | 1995 | 1975 | 1989 | 1977 |
| Heating Degree Days (F) | 606. | 418. | 345. | 207. | 94. | 7. | 0. | 0. | 10. | 87. | 352. | 590. | 2716. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 30. | 128. | 250. | 369. | 333. | 225. | 75. | 4. | 0. | 1420. |