Illinois State Water Survey Illinois State Climatologist

Author: Admin

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July 2019: Prolonged stretch of abnormally wet weather comes to an end, along with notable hot and humid conditions.

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July 2019 signaled the end of a persistent and historic stretch of abnormally wet conditions across Illinois, along with several notable periods of significantly above average temperatures. Preliminary data suggest that July 2019 concluded drier than average, with temperatures above the long-term average. The preliminary average statewide July temperature was 77.3°F, which is 1.9°F above the long-term average. […]

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June 2019: Stormy and Wet with a Warm Finish

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June 2019 will be a month remembered for a continuation of above average precipitation and near to seasonably cool temperatures, despite an unseasonably warm finish. Preliminary data suggest that June 2019 concluded wetter than average, with temperatures slightly below the long-term average. The preliminary average statewide June temperature was 71.0°F, which is 0.9°F below the long-term average. […]

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May 2019: Exceptionally Wet and Stormy Across Illinois

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May 2019 will be a month remembered for exceptional, record-breaking wet conditions locally, as well as an active, stormy, and at times severe weather pattern across the state. Preliminary data suggest that May 2019 finished significantly wetter than average, with temperatures marginally below the long-term average. The preliminary average statewide May temperature was 62.5°F, which is 0.2°F below the […]

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April 2019: An Active Weather Pattern and Late Season Snow!

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April 2019 will be a month remembered for a continuation of an active and stormy weather pattern across Illinois, with two short lived, yet notable and uncommon late season snow events which impacted many in northern portions of the state. The month finished noticeably wetter than average, with temperatures marginally below the long-term average. The […]

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