Illinois State Water Survey Illinois State Climatologist

Illinois Was the Wettest State in the US in June

The National Centers for Environmental Information (formerly NCDC) released their numbers for June, showing that Illinois did indeed have its wettest June on record with 9.30 inches (according to their calculations). That made Illinois the wettest state** in the US for the month. Here are the national maps showing the statewide precipitation values for June […]

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Wettest June and Now Second Month on Record for Illinois

According to the rainfall reports through yesterday (6/29), the statewide average precipitation is now 9.37 inches. The old record for June was 8.27 inches set in 1902. The current 9.37 inches beats the old record by 1.10 inches. The current 9.37 inches is 5.17 inches above the June average of 4.20 inches. The current 9.37 inches […]

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So Far, Fifth Wettest June on Record for Illinois

Even before today’s rain, the statewide average rainfall for June in Illinois is 7.11 inches. That makes it the 5th wettest June on record. And June is not over. Here are the top ten wettest June totals on record and where we stand: 1902 with 8.27 inches 2010 with 7.71 inches 1998 with 7.64 inches 2000 with […]

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June in Illinois – Warmer and Wetter Than Average

The statewide average precipitation for June 2014 in Illinois was 6.78 inches, 2.58 inches above average and the 8th wettest June on record. The wettest June on record was 1902 with 8.27 inches. Four out of the last five June’s have been wetter than average in Illinois: 2010: 7.71 inches, 3.51 inches above average 2011: […]

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