Winter Weather Other Facts Average Annual: 43.48in Number of Days with Precipitation: 65 Wettest Year: 80.58in (2015) Driest Year: 22.44in (1896) Greatest Daily Rainfall: 9.8in (10/14/81) Average Annual: 60.6°F Average Maximum: 72.4°F Average Minimum: 48.8°F Record High: 112°F Record Lowest: -15°F Number of Days greater than 90°: 70 Number of Days High less than 32°: 3 Average Annual Snowfall: 3.7in Days with snow on the Ground: 1 Greatest Seasonal Snowfall: 12.0in (1999-2000) Greatest Daily Snowfall: 11in (1/17/1893) Date of Average Last Freeze in Spring: March 28 Date of Average First Freeze in Fall: Nov. 10 Length of Growing Season: 220 Average Wind Speed: 6mph Sunshine: 50-75% Average Humidity: 73% Thunderstorm Days: 54 Hail Events (1950-2016): 196 Number of Tornadoes (1950-2016): 23 Temperature Precipitation