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Illinois United States of America
Precipitation in October
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October Rainfall Precipitation in Illinois

Illinois is a region in the United States of America. In October precipitation ranges from moderate in Rochelle with 67 mm of rainfall to high in Roscoe with 143 mm of rainfall.

Where and how much does it rain in Illinois in October?

Find the average total precipitation in October for the most popular destinations in Illinois on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather
Temperatures
Precipitation
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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Illinois receive in October?
    • During October, Chicago often sees a mix of wet and dry days, with an average rainfall of around 76 mm.

  • What is the wettest city in October in Illinois?
    • According to our data the wettest location is Roscoe with an average precipitation of 143 mm.

  • What is the driest city in October in Illinois?
    • The driest place is Rochelle with an average precipitation of 67 mm according to our data.

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