Illinois State Water Survey Illinois State Climatologist

Warmer and Mostly Wetter July (so far)

The statewide average temperature for July 1-22, 2010, in Illinois is 77.2 degrees, 1.1 degrees above normal for this time period. The state average precipitation for the same period is 3.46 inches, 0.70 inches above normal. Northern and eastern Illinois are a little drier on average. However, even those drier areas contain locations with very […]

Read More from Warmer and Mostly Wetter July (so far)

June Rainfall Totals in Illinois

Here are the June 2010 rainfall totals for sites in Illinois, ranked from highest to lowest. The numbers are impressive with 35 sites scattered throughout northern and central Illinois reporting 10 or more inches of rain. These numbers are preliminary and have not been quality-controlled. In some cases data may be missing that could lead […]

Read More from June Rainfall Totals in Illinois

June Rainfall Totals in Illinois

Here are the June 2010 rainfall totals for sites in Illinois, ranked from highest to lowest. The numbers are impressive with 35 sites scattered throughout northern and central Illinois reporting 10 or more inches of rain. These numbers are preliminary and have not been quality-controlled. In some cases data may be missing that could lead […]

Read More from June Rainfall Totals in Illinois

2nd Wettest June on Record

Illinois has experienced the 2nd wettest June on record, based on preliminary records through June 30. The statewide average rainfall was 7.8 inches, 3.7 inches above normal. The wettest June on record was 1902 with 8.37 inches. The rains over the weekend, especially north of I-80 and along I-70 caused this June to move up […]

Read More from 2nd Wettest June on Record