Winters in Wheeling are quite cold, with temperatures often dropping below freezing and averaging around -2°C. Spring brings a gradual warming trend, with March being the first month to see average temperatures above 0°C, eventually reaching highs of up to 28°C by April. Summer is warm but not sweltering, with July and August typically seeing average highs in the mid-20s Celsius. Autumn is mild, with September experiencing a slight cooling trend before October returns to more seasonal temperatures. By December, temperatures begin to drop again, averaging around 5°C.