| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.9 | 59.3 | 61.2 | 64.3 | 66.8 | 69.9 | 71.1 | 71.7 | 72.7 | 69.7 | 62.0 | 56.1 | 65.1 |
| Highest Mean Max. Temperature (F) | 59.3 | 63.2 | 65.4 | 69.2 | 73.2 | 76.5 | 74.4 | 75.0 | 81.6 | 73.4 | 67.0 | 59.3 | 81.6 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1989 | 1997 | 1981 | 1984 | 1993 | 1984 | 1992 | 1995 | 1999 | 1984 |
| Lowest Mean Max. Temperature (F) | 52.0 | 54.6 | 56.9 | 58.1 | 62.5 | 65.4 | 68.2 | 67.5 | 68.3 | 66.3 | 56.5 | 51.7 | 51.7 |
| Year Lowest Occurred | 1985 | 1989 | 1999 | 1975 | 1999 | 1991 | 2000 | 1986 | 1989 | 1971 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 49.4 | 52.4 | 54.0 | 56.2 | 58.7 | 61.4 | 62.8 | 63.6 | 63.9 | 61.0 | 54.7 | 49.5 | 57.3 |
| Highest Mean Temperature (F) | 53.2 | 55.8 | 57.3 | 60.1 | 64.4 | 65.0 | 64.9 | 66.9 | 69.0 | 64.7 | 58.4 | 53.9 | 69.0 |
| Year Highest Occurred | 1986 | 1986 | 1978 | 1989 | 1997 | 1981 | 1992 | 1997 | 1984 | 1992 | 1995 | 1996 | 1984 |
| Lowest Mean Temperature (F) | 45.2 | 48.0 | 50.8 | 50.8 | 55.5 | 58.5 | 60.5 | 60.3 | 60.7 | 56.8 | 49.9 | 45.0 | 45.0 |
| Year Lowest Occurred | 1982 | 1989 | 1985 | 1975 | 1999 | 1991 | 1971 | 1986 | 1989 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 42.9 | 45.5 | 46.8 | 48.1 | 50.5 | 52.9 | 54.5 | 55.5 | 55.1 | 52.4 | 47.5 | 43.0 | 49.6 |
| Highest Mean Min. Temperature (F) | 48.1 | 49.9 | 50.9 | 52.2 | 55.5 | 56.0 | 58.0 | 59.8 | 59.6 | 55.9 | 51.7 | 48.7 | 59.8 |
| Year Highest Occurred | 1995 | 1986 | 1992 | 1992 | 1997 | 1992 | 1992 | 1997 | 1997 | 1992 | 1997 | 1983 | 1997 |
| Lowest Mean Min. Temperature (F) | 38.1 | 41.3 | 42.9 | 43.5 | 48.2 | 51.1 | 51.4 | 52.5 | 52.6 | 47.3 | 43.3 | 38.0 | 38.0 |
| Year Lowest Occurred | 1976 | 1989 | 1976 | 1975 | 1982 | 1984 | 1981 | 1973 | 1988 | 1971 | 1994 | 1978 | 1978 |
| Mean Precipitation (in.) | 4.45 | 4.01 | 3.26 | 1.18 | 0.38 | 0.11 | 0.03 | 0.07 | 0.20 | 1.04 | 2.49 | 2.89 | 20.11 |
| Highest Precipitation (in.) | 11.26 | 13.64 | 8.75 | 4.50 | 2.37 | 0.60 | 0.35 | 0.66 | 1.24 | 5.24 | 7.94 | 6.97 | 13.64 |
| Year Highest Occurred | 1993 | 1998 | 1995 | 1978 | 1998 | 1995 | 1977 | 1976 | 1989 | 1972 | 1973 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.24 | 0.26 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.01 | 0.00 |
| Year Lowest Occurred | 1991 | 1971 | 1988 | 1977 | 1992 | 1996 | 2000 | 1998 | 1997 | 1978 | 1995 | 1989 | 1977 |
| Heating Degree Days (F) | 482. | 354. | 339. | 266. | 201. | 120. | 77. | 56. | 62. | 131. | 298. | 476. | 2862. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 10. | 21. | 23. | 26. | 38. | 20. | 0. | 0. | 142. |