Climate Comparison

Ottawa vs Chicago in September

How the climate for Ottawa and Chicago typically compares in September.

Ottawa versus Chicago weather metrics for September
Climate MetricOttawaCanadaChicagoUnited States
Overall score94/10094/100
Avg high temp71°F74°F
How it feelsComfortableComfortable
Rain days109
Sunshine8.9h9.9h

Annual Comparison

  • Ottawa
  • Chicago

Avg. high temperature (°F)

Typical daytime high you can expect.

20°30°40°50°60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDec71°74°

Avg. high temperature (°F)

Typical daytime high you can expect.

20°30°40°50°60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDec71°74°

Precipitation (in)

Monthly precipitation patterns across the year.

0.02.04.06.0JanFebMarAprMayJunJulAugSepOctNovDec3.52.7

Sunshine hours (h/day)

Average hours of sunshine per day.

0.02.04.06.08.010.012.014.0JanFebMarAprMayJunJulAugSepOctNovDec8.99.9

Air feel (%)

Share of time the air feels humid or very humid.

0%5%10%JanFebMarAprMayJunJulAugSepOctNovDec

Go deeper

Full climate detail for Ottawa→Full climate detail for Chicago→
Compare Ottawa in other monthsAugustOctober