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Illinois Climate
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Climate (All temperatures
Fahrenheit) |
| Highest
Temperature |
The highest temperature recorded in Illinois is
117°, Fahrenheit. This record high was recorded on July
14, 1954 at East St. Louis. |
| Lowest Temperature |
The lowest temperature in Illinois, -36°, was
recorded on January 5, 1999 at Congerville. |
| Average
Temperature |
Monthly average temperatures range from a high of
87.1 degrees to a low of 9.8 degrees. |
| Climate |
Average yearly precipitation for Illinois, from 1961
to 1990, is shown on this chart from Oregon State
University. |
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