NWS-ILX Weather Trivia for Illinois Weather Trivia for Illinois Illinois is known for its wide variety of weather. Through the assistance of the Illinois State Water Survey and the National Weather Service offices that serve Illinois, here is a look at small bits of weather trivia for each day of the year. The central part of Illinois is emphasized, but significant weather events elsewhere in the state are included. NWS data and products form a national information database and infrastructure which can be used by other government agencies, the private sector, the public, and the global community.
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