| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.8 | 59.6 | 63.8 | 70.1 | 78.2 | 86.4 | 92.8 | 92.1 | 87.5 | 77.8 | 63.4 | 55.7 | 73.5 |
| Highest Mean Max. Temperature (F) | 58.9 | 66.6 | 70.6 | 78.6 | 86.8 | 92.9 | 97.8 | 97.1 | 93.1 | 85.3 | 72.0 | 62.7 | 97.8 |
| Year Highest Occurred | 1976 | 1991 | 1997 | 1987 | 1992 | 1981 | 1996 | 1996 | 1991 | 1991 | 1995 | 1999 | 1996 |
| Lowest Mean Max. Temperature (F) | 51.4 | 55.3 | 57.8 | 61.3 | 66.5 | 79.3 | 87.4 | 83.7 | 79.8 | 70.2 | 57.7 | 49.4 | 49.4 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 45.4 | 48.9 | 52.2 | 56.6 | 63.2 | 70.0 | 75.0 | 74.3 | 70.8 | 63.1 | 52.3 | 45.9 | 59.8 |
| Highest Mean Temperature (F) | 49.5 | 53.1 | 56.9 | 61.8 | 69.7 | 76.3 | 79.3 | 77.5 | 74.4 | 68.0 | 57.8 | 50.6 | 79.3 |
| Year Highest Occurred | 1995 | 1997 | 1997 | 1992 | 1992 | 1981 | 1988 | 1996 | 1991 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 41.3 | 44.4 | 47.8 | 49.0 | 56.5 | 64.4 | 70.7 | 69.5 | 65.3 | 59.6 | 46.9 | 40.6 | 40.6 |
| Year Lowest Occurred | 1972 | 1989 | 1973 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 35.9 | 38.2 | 40.5 | 43.0 | 48.2 | 53.6 | 57.1 | 56.5 | 54.1 | 48.4 | 41.1 | 36.0 | 46.1 |
| Highest Mean Min. Temperature (F) | 44.5 | 42.4 | 45.7 | 48.1 | 52.6 | 59.7 | 60.9 | 59.1 | 57.3 | 51.8 | 46.4 | 42.4 | 60.9 |
| Year Highest Occurred | 1995 | 1983 | 1993 | 1992 | 1992 | 1981 | 1988 | 1971 | 1998 | 1987 | 1981 | 1996 | 1988 |
| Lowest Mean Min. Temperature (F) | 30.9 | 32.9 | 35.9 | 36.7 | 44.8 | 49.0 | 54.1 | 53.8 | 50.9 | 45.1 | 35.8 | 26.9 | 26.9 |
| Year Lowest Occurred | 1976 | 1990 | 1976 | 1975 | 1980 | 1980 | 1987 | 1985 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.85 | 5.83 | 4.68 | 1.42 | 0.78 | 0.13 | 0.03 | 0.07 | 0.34 | 1.34 | 3.22 | 4.25 | 27.94 |
| Highest Precipitation (in.) | 21.33 | 19.93 | 15.13 | 6.31 | 4.81 | 0.84 | 0.60 | 0.66 | 2.42 | 3.33 | 8.93 | 12.62 | 21.33 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1998 | 1993 | 1974 | 1997 | 1989 | 1981 | 1981 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.33 | 0.03 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1971 | 1988 | 1985 | 1985 | 1998 | 2000 | 2000 | 1996 | 1995 | 1995 | 1989 | 1985 |
| Heating Degree Days (F) | 608. | 452. | 402. | 272. | 132. | 24. | 1. | 0. | 14. | 113. | 383. | 595. | 2996. |
| Cooling Degree Days (F) | 0. | 0. | 3. | 18. | 75. | 174. | 310. | 290. | 186. | 54. | 1. | 0. | 1111. |