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The Climate of Illinois describes the weather conditions, and extremes, noted within the state of Illinois, United States, over time. Because of its nearly 400-mile (640 km) length and mid-continental location, Illinois has a widely varying climate. Most of Illinois has a humid continental climate (Köppen climate classification Dfa) with hot ...
Illinois has a continental climate, with large temperature extremes not moderated by either mountains or oceans. Weather is influenced primarily by cold Canadian Arctic air in the winter, and warm, humid air from the Gulf of Mexico in the summer. High temperatures in the south of the state are about 10 to 12 °F. warmer than the north. Average ...
Temperatures vary tremendously in the springtime; at 100 °F (38 °C), March is the month with the greatest span between the record high and low. At O'Hare, temperatures as low as 7 °F (−14 °C) and 31 °F (−1 °C) have been recorded as late as April 7 and May 21, respectively.
As for what a typical summer weather day is in Illinois, the University of Illinois state climatologist office says highs are usually in the 80s with lows in the 60s. Days above 90 degrees are ...
Climate data for Chicago (O'Hare Int'l Airport), 1991–2020 normals, [a] extremes 1871–present [b]Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Record high °F (°C)
Pages in category "Climate of Illinois" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. ...
Climate change in Illinois encompasses the effects of climate change, attributed to man-made increases in atmospheric carbon dioxide, in the U.S. state of Illinois. The United States Environmental Protection Agency reports [ 1 ] that the climate of Illinois is changing.
The lowest temperature of −27 °F (−33 °C) was recorded on January 20, 1985. Along with long, hot dry spells in the summer, Chicago can suffer extreme winter cold spells. In the entire month of January 1977, the temperature did not rise above 31 °F (−0.6 °C). The average temperature that month was around 10 °F (−12 °C).