January Rainfall and Precipitation in Illinois
Average rainfall, rainy days and the driest cities in Illinois, the United States of America in January.
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Best Places to Visit in Illinois in January
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Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.
Illinois precipitation in January: frequently asked questions
How much snowfall does Illinois, the United States of America receive in January?
Rainfall in Chicago during January is on the lighter side, averaging about 50 mm (2 in). Expect predominantly dry weather punctuated by short showers.
How many days does it rain in Illinois, the United States of America in January?
On average, Chicago has about 10 days days of rain in January.
Is January part of the rainy season in Illinois, the United States of America?
No. January sits outside the typical rainy season in Illinois, the United States of America, so you can expect drier conditions overall.
What is the wettest city in January in Illinois, the United States of America?
Metropolis is the wettest city in Illinois, the United States of America in January according to our database, with average snow/rainfall of around 100 mm (3.9 in).
What is the driest city in January in Illinois, the United States of America?
In our records, Galena stands out as the driest city in Illinois, the United States of America for January, averaging just 27 mm (1.1 in).
Interested in more climate information?
We have much more information about the climate in Illinois.
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