Central Illinois
Weather Forecast Office
| Average First Autumn Freeze | October 16 (based on 1981-2010 data) |
| Earliest First Freeze | September 23, 1995 |
| Latest First Freeze | November 12, 2016 (based on current airport observing site, since 1947) |
| Average Last Spring Freeze | April 17 (based on 1981-2010 data) |
| Latest Last Freeze | May 10, 1966 |
Top 10 Earliest and Latest Freezes (lows <= 32°F)
| LATEST SPRING FREEZES | EARLIEST FALL FREEZES |
| May 10, 1966 | September 23, 1995 |
| May 9, 2020 | September 29, 1899 and 2003 |
| May 4, 1954 and 2005 | September 30, 1899 and 1984 |
| May 3, 1976 | October 2, 1974 and 2011 |
| May 2, 1929 | October 3, 1888, 1952 and 2004 |
| May 1, 1907, 1963 and 2015 | October 4, 1935 and 1968 |
| April 29, 1883 and 1958 | October 5, 1980 and 1999 |
| April 28, 1992 | October 6, 1964, 1985, 1988 and 2001 |
| April 26, 1976 | October 7, 1889, 1991, 2000, 2012 |
| April 25, 1968 and 1972 | October 8, 1978 and 1987 |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Central Illinois
1362 State Route 10
Lincoln, IL 62656
217-732-7321 (forecast recording) or 217-732-3089
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