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Average yearly precipitation for Illinois varies from 48 inches or 1,220 mm at the southern tip to 35 inches or 890 mm in the northern portion of the state. Normal annual snowfall exceeds 38 inches or 0.97 m in Chicago, while the southern portion of the state normally receives less than 14 inches or 0.36 m. [1]
Here are rainfall amounts, in inches, from the last 24 hours (unless otherwise noted) by locality, according to National Weather Service St. Louis: Illinois locations. Belleville: 6.23, 6.33 ...
Record-breaking rain that month led to a devastating flood. The rainiest Jan. 23 was in 1996 with 1.57 inches of rain. By contrast, the NWS recorded 0.45 inches of rain Tuesday , and 0 inches ...
Several southwest Illinois areas recorded between 5 and 8 inches of rainfall, though one locality had more than 9 inches. Here’s what the National Weather Service St. Louis reported Wednesday ...
Over the contiguous United States, total annual precipitation increased at an average rate of 6.1 percent per century since 1900, with the greatest increases within the East North Central climate region (11.6 percent per century) and the South (11.1 percent). Hawaii was the only region to show a decrease (−9.25 percent). [89]
Illinois has seen a 10-20% increase in annual precipitation over historical averages in the last 100 years. This precipitation increase is happening most in the Fall. [5] Additionally, there has been a 40% increase in the number of days with precipitation of 2 inches (5 cm) or more.
United States: 1252.6 108.9 117.1 124.5 95.8 79.2 113.1 123.0 ... Average monthly precipitation (in mm) for selected cities in South America City Country Year Jan Feb Mar
New rainfall is still only expected to be between a tenth to a quarter of an inch. Saturday evening has a 90% chance of rain while Sunday during the day has a 70% chance of showers.