Ottawa Weather

US Geography / US Weather / Illinois Weather / Ottawa

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg. High 30 35 47 62 74 82 85 84 77 65 48 35
Avg. Low 12 16 28 40 50 60 64 62 54 44 31 18
Mean 22 26 38 51 62 72 75 74 66 54 41 27
Avg. Precip. 1.4 in 1.3 in 2.9 in 3.7 in 3.8 in 4.1 in 3.8 in 3.7 in 3.9 in 2.4 in 2.7 in 2.3 in

Degrees in Fahrenheit

 

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