Average monthly snow and rainfall in Ottawa (IL)

The mean monthly precipitation over the year in Ottawa (Illinois), including rain, snow, hail.

Average monthly rainfall, snow, precipitation in Ottawa (IL),

A lot of rain (rainy season) falls in the months: May, June and August.
On average, June is the wettest month with 129 mm of precipitation.
On average, January is the driest month with 46 mm of precipitation.
The average amount of annual precipitation is 1008 mm.

Weather Forecasts for Ottawa (IL)

Sun Apr 28

25°C | 16°C

25 km/h

27 mm

broken clouds and thunder

hourly forecast

Mon Apr 29

22°C | 12°C

25 km/h

8.3 mm

broken clouds and rain

hourly forecast

Tue Apr 30

24°C | 10°C

11 km/h

0.2 mm

partly cloudy and small chance of slight rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

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