Huron has a humid continental climate, with hot, humid summers, cold, dry winters, and wide temperature extremes; it is part of USDA hardiness zone 4b. The normal monthly mean temperature ranges from in January to in July. On average, there are 2.3 days that reach or higher, 25 days that reach or higher, 64 days that do not climb above freezing, 27 days with a low of or below, and 3.1 days that do not rise above 0 °F annually. The average window for freezing temperatures are September 30 through May 5, allowing a growing season of 147 days. Extreme temperatures officially range from on January 12, 1912, and January 8, 1887, up to on July 10, 1966; the record cold daily maximum is on January 14, 1888, while, conversely, the record warm daily minimum is on July 11, 1936.