Frost history / Marseilles Lock, IL
Marseilles Lock, IL: frost dates by year
Last spring and first fall frost at NOAA station USC00115372, 1977 to 2025, measured from daily minimum temperatures.
Elevation 490 ft, 41.329, -88.753. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 30 | Oct 16 |
| Earliest | Apr 14 (2000) | Sep 24 (2012) |
| Latest | May 22 (2002) | Oct 30 (2023) |
| Trend | little change (less than half a day per decade) | 3.1 days later per decade |
| Years with data | 28 | 27 |
At 28°F (hard freeze) the median last spring date is Apr 14 and the median first fall date is Oct 28.
The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.
Chart
Last spring frost (32°F)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2025 | Apr 17 | Oct 24 | Apr 9 | Nov 10 |
| 2024 | Apr 25 | Oct 16 | Apr 22 | Oct 17 |
| 2023 | May 5 | Oct 30 | Apr 27 | Oct 31 |
| 2022 | Apr 20 | Oct 9 | Mar 29 | Oct 9 |
| 2020 | May 9 | Oct 28 | Apr 17 | Nov 2 |
| 2019 | Apr 30 | Oct 13 | Apr 16 | Nov 1 |
| 2018 | Apr 29 | Oct 12 | Apr 29 | Oct 18 |
| 2017 | May 8 | Oct 30 | Apr 30 | Oct 30 |
| 2016 | May 15 | Oct 22 | Apr 13 | Nov 12 |
| 2015 | May 1 | no data | Apr 24 | no data |
| 2014 | May 17 | Oct 19 | May 17 | Oct 30 |
| 2013 | May 14 | Oct 22 | Apr 5 | Oct 22 |
| 2012 | Apr 28 | Sep 24 | Apr 13 | Oct 29 |
| 2011 | May 5 | Oct 21 | Apr 1 | Oct 28 |
| 2010 | May 9 | Oct 6 | Apr 9 | Oct 22 |
| 2009 | Apr 22 | Oct 10 | Apr 13 | Nov 12 |
| 2008 | Apr 30 | Oct 28 | Apr 14 | Oct 28 |
| 2007 | Apr 17 | Oct 28 | Apr 16 | Nov 2 |
| 2006 | Apr 28 | Oct 12 | Apr 10 | Oct 24 |
| 2005 | May 5 | Oct 23 | May 5 | Oct 28 |
| 2004 | May 4 | Oct 5 | Apr 6 | Nov 8 |
| 2003 | Apr 27 | Oct 2 | Apr 24 | Oct 2 |
| 2002 | May 22 | Oct 14 | Apr 7 | Oct 14 |
| 2001 | Apr 19 | Oct 7 | Apr 19 | Oct 28 |
| 2000 | Apr 14 | Oct 7 | Apr 13 | Oct 9 |
| 1999 | Apr 20 | Oct 18 | Mar 28 | Oct 24 |
| 1998 | Apr 18 | Oct 22 | Apr 6 | Nov 6 |
| 1997 | no data | Oct 15 | no data | Oct 23 |
| 1977 | May 10 | no data | Apr 29 | no data |
"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991–2020 frost probabilities.