| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 63.2 | 66.2 | 68.9 | 74.8 | 78.4 | 83.0 | 85.1 | 85.2 | 85.0 | 79.9 | 69.4 | 63.2 | 75.2 |
| Highest Mean Max. Temperature (F) | 70.0 | 73.6 | 75.3 | 81.6 | 86.2 | 90.3 | 89.7 | 88.9 | 92.7 | 84.9 | 75.6 | 71.1 | 92.7 |
| Year Highest Occurred | 1976 | 1991 | 1972 | 1987 | 1984 | 1981 | 1984 | 1983 | 1984 | 1980 | 1995 | 1980 | 1984 |
| Lowest Mean Max. Temperature (F) | 57.2 | 58.6 | 62.1 | 67.8 | 70.2 | 76.5 | 80.4 | 83.2 | 77.2 | 74.0 | 62.0 | 57.2 | 57.2 |
| Year Lowest Occurred | 1979 | 1998 | 1991 | 1983 | 1998 | 1998 | 1987 | 1987 | 1986 | 1972 | 1994 | 1984 | 1979 |
| Mean Temperature (F) | 50.2 | 53.3 | 55.5 | 59.0 | 62.7 | 66.6 | 69.0 | 69.2 | 68.1 | 63.2 | 54.8 | 49.7 | 60.1 |
| Highest Mean Temperature (F) | 56.0 | 58.1 | 60.5 | 64.1 | 67.6 | 70.9 | 72.0 | 71.6 | 73.2 | 66.5 | 59.5 | 54.4 | 73.2 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1992 | 1997 | 1973 | 1984 | 1983 | 1984 | 1991 | 1995 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 45.8 | 50.1 | 51.3 | 52.6 | 58.5 | 63.8 | 65.7 | 66.4 | 62.8 | 59.1 | 49.0 | 44.4 | 44.4 |
| Year Lowest Occurred | 1982 | 1990 | 1973 | 1975 | 1998 | 1991 | 1987 | 1975 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 37.2 | 40.3 | 42.1 | 43.1 | 46.9 | 50.2 | 52.9 | 53.1 | 51.2 | 46.5 | 40.1 | 36.1 | 45.0 |
| Highest Mean Min. Temperature (F) | 43.9 | 45.5 | 49.8 | 47.4 | 51.3 | 54.1 | 55.6 | 56.1 | 54.6 | 52.5 | 45.9 | 42.3 | 56.1 |
| Year Highest Occurred | 1995 | 1978 | 1978 | 1992 | 1992 | 1992 | 1992 | 1977 | 1983 | 1972 | 1997 | 1977 | 1977 |
| Lowest Mean Min. Temperature (F) | 28.9 | 36.1 | 35.6 | 36.3 | 43.8 | 47.5 | 50.2 | 48.6 | 48.1 | 42.1 | 35.2 | 28.2 | 28.2 |
| Year Lowest Occurred | 1975 | 1988 | 1977 | 1975 | 1975 | 1984 | 1983 | 1975 | 1996 | 1971 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.35 | 2.65 | 2.49 | 0.74 | 0.24 | 0.07 | 0.01 | 0.05 | 0.25 | 0.55 | 1.23 | 1.67 | 12.30 |
| Highest Precipitation (in.) | 6.46 | 10.50 | 8.47 | 2.86 | 2.11 | 0.55 | 0.20 | 1.14 | 2.56 | 2.49 | 4.28 | 4.63 | 10.50 |
| Year Highest Occurred | 1978 | 1998 | 1991 | 1982 | 1998 | 1972 | 1980 | 1976 | 1976 | 1996 | 1972 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1977 | 1972 | 1993 | 1997 | 1999 | 2000 | 1999 | 2000 | 1999 | 2000 | 1993 | 1976 |
| Heating Degree Days (F) | 460. | 330. | 301. | 202. | 119. | 40. | 8. | 4. | 27. | 106. | 311. | 476. | 2384. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 21. | 46. | 89. | 131. | 132. | 120. | 50. | 3. | 0. | 598. |