Frost history / Lawrenceville Intl Ap, IL
Lawrenceville Intl Ap, IL: frost dates by year
Last spring and first fall frost at NOAA station USW00013809, 1997 to 2024, measured from daily minimum temperatures.
Elevation 429 ft, 38.764, -87.606. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 7 | Oct 23 |
| Earliest | Mar 9 (2010) | Oct 3 (2004) |
| Latest | Apr 24 (2023) | Nov 11 (2011) |
| Trend | 2.6 days later per decade | 4.8 days later per decade |
| Years with data | 26 | 27 |
At 28°F (hard freeze) the median last spring date is Mar 27 and the median first fall date is Nov 7.
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 |
|---|---|---|---|---|
| 2024 | Apr 6 | no data | Mar 19 | no data |
| 2023 | Apr 24 | Oct 30 | Mar 21 | Oct 31 |
| 2022 | Apr 19 | Oct 19 | Mar 28 | Nov 14 |
| 2021 | Apr 21 | Nov 2 | Apr 2 | Nov 4 |
| 2020 | no data | Oct 16 | no data | Nov 2 |
| 2019 | Apr 2 | Oct 31 | Apr 1 | Nov 1 |
| 2018 | Apr 17 | Oct 21 | Mar 22 | Nov 10 |
| 2017 | Mar 23 | Oct 31 | Mar 19 | Nov 11 |
| 2016 | Apr 12 | Nov 10 | Mar 6 | Nov 13 |
| 2015 | Mar 29 | Oct 17 | Mar 29 | Nov 22 |
| 2014 | Apr 16 | Nov 1 | Mar 26 | Nov 2 |
| 2013 | Apr 3 | Oct 22 | Apr 2 | Oct 25 |
| 2012 | Apr 11 | Nov 1 | Mar 5 | Nov 13 |
| 2011 | Mar 31 | Nov 11 | Mar 27 | Nov 11 |
| 2010 | Mar 9 | Oct 29 | Mar 7 | Nov 6 |
| 2009 | Apr 8 | Oct 18 | Mar 30 | Dec 3 |
| 2008 | Apr 15 | Oct 28 | Mar 11 | Nov 10 |
| 2007 | Apr 13 | Oct 29 | Apr 7 | Nov 7 |
| 2006 | Mar 27 | Oct 13 | Mar 23 | Nov 2 |
| 2005 | Mar 21 | Oct 28 | Mar 17 | Nov 16 |
| 2004 | Apr 5 | Oct 3 | Mar 22 | Dec 3 |
| 2003 | Apr 6 | Nov 7 | Mar 31 | Nov 8 |
| 2002 | Apr 6 | Oct 14 | Apr 5 | Nov 1 |
| 2001 | Apr 18 | Oct 7 | Mar 28 | Oct 27 |
| 2000 | Apr 9 | Oct 7 | Apr 9 | Nov 15 |
| 1999 | Mar 28 | Oct 18 | Mar 27 | Nov 3 |
| 1998 | no data | Oct 23 | no data | Nov 4 |
| 1997 | Apr 18 | Oct 22 | Apr 9 | Oct 22 |
"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 to 2020 frost probabilities.