Harrisburg Weather

US Geography / US Weather / Illinois Weather / Harrisburg

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg. High 38 42 54 66 76 85 88 87 80 68 55 42
Avg. Low 18 22 34 44 54 62 65 64 56 44 35 24
Mean 28 34 44 55 65 74 77 75 68 57 45 34
Avg. Precip. 2.5 in 2.7 in 4.6 in 4.3 in 4.6 in 3.4 in 3.8 in 3.1 in 2.8 in 3.0 in 4.1 in 3.8 in

Degrees in Fahrenheit

 

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