| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.1 | 41.0 | 49.3 | 57.8 | 68.3 | 79.7 | 86.4 | 83.3 | 73.4 | 61.0 | 44.7 | 36.6 | 59.6 |
| Highest Mean Max. Temperature (F) | 42.9 | 50.5 | 57.7 | 66.4 | 74.0 | 85.9 | 91.2 | 86.6 | 80.0 | 70.5 | 53.9 | 46.0 | 91.2 |
| Year Highest Occurred | 1999 | 1995 | 1972 | 1992 | 2000 | 1994 | 1998 | 1996 | 1979 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Max. Temperature (F) | 25.0 | 34.8 | 42.4 | 50.3 | 60.6 | 73.6 | 81.9 | 79.3 | 66.7 | 54.5 | 37.4 | 29.4 | 25.0 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1975 | 1995 | 1995 | 1992 | 1993 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Temperature (F) | 24.6 | 30.2 | 38.0 | 44.9 | 55.0 | 65.3 | 72.2 | 69.4 | 60.2 | 49.2 | 34.9 | 26.9 | 47.6 |
| Highest Mean Temperature (F) | 32.7 | 38.7 | 44.1 | 52.5 | 58.7 | 70.4 | 76.8 | 72.2 | 65.0 | 58.2 | 40.7 | 34.4 | 76.8 |
| Year Highest Occurred | 1999 | 1995 | 1994 | 1992 | 2000 | 1994 | 1998 | 1998 | 1979 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 15.6 | 23.6 | 33.5 | 38.8 | 48.3 | 59.0 | 66.7 | 65.4 | 55.5 | 43.8 | 27.9 | 19.9 | 15.6 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1975 | 1995 | 1995 | 1993 | 1993 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 15.1 | 19.3 | 26.7 | 31.9 | 41.7 | 50.8 | 58.0 | 55.5 | 46.9 | 37.3 | 25.1 | 17.1 | 35.5 |
| Highest Mean Min. Temperature (F) | 22.4 | 26.9 | 32.4 | 39.5 | 45.2 | 55.6 | 62.4 | 59.5 | 52.2 | 45.9 | 28.5 | 23.9 | 62.4 |
| Year Highest Occurred | 1999 | 1995 | 1994 | 1989 | 1994 | 1988 | 1998 | 1971 | 1998 | 1988 | 1981 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 5.8 | 12.3 | 20.5 | 27.2 | 35.9 | 44.3 | 50.5 | 51.5 | 42.5 | 31.4 | 18.4 | 10.3 | 5.8 |
| Year Lowest Occurred | 1973 | 1974 | 1976 | 1975 | 1995 | 1995 | 1993 | 1993 | 1996 | 1995 | 2000 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.82 | 0.78 | 1.08 | 1.09 | 1.17 | 0.74 | 1.42 | 1.05 | 1.87 | 1.45 | 0.57 | 0.52 | 12.56 |
| Highest Precipitation (in.) | 2.11 | 3.03 | 2.06 | 3.88 | 3.47 | 1.96 | 3.63 | 2.89 | 5.47 | 4.10 | 1.33 | 1.66 | 5.47 |
| Year Highest Occurred | 1997 | 2000 | 1993 | 1994 | 1992 | 1998 | 1992 | 1999 | 1982 | 2000 | 1996 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.19 | 0.00 | 0.01 | 0.16 | 0.01 | 0.10 | 0.01 | 0.05 | 0.00 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1994 | 1972 | 1997 | 1989 | 1972 | 1996 | 1978 | 1996 | 1993 | 1999 | 1999 | 1989 | 1994 |
| Heating Degree Days (F) | 1253. | 976. | 837. | 604. | 317. | 87. | 10. | 13. | 171. | 494. | 904. | 1183. | 6849. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 93. | 232. | 149. | 25. | 3. | 0. | 0. | 509. |