Last Frost Day

Frost history / Lawrenceville 2WSW, IL

Lawrenceville 2WSW, IL: frost dates by year

Last spring and first fall frost at NOAA station USC00114957, 1991 to 2025, measured from daily minimum temperatures.

Elevation 451 ft, 38.724, -87.720. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 8Oct 27
EarliestMar 25 (1998)Oct 3 (2003)
LatestApr 29 (2018)Nov 11 (2011)
Trend3.1 days later per decade1.3 days later per decade
Years with data2226

At 28°F (hard freeze) the median last spring date is Apr 2 and the median first fall date is Nov 6.

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)

Mar 16Mar 31Apr 15Apr 30May 152000201020201991: Mar 311992: Apr 61993: Apr 181994: Apr 81995: Apr 61997: Apr 151998: Mar 251999: Mar 282000: Apr 92001: Apr 192003: Apr 12009: Mar 312010: Mar 272011: Apr 22016: Apr 122017: Apr 82018: Apr 292021: Apr 222022: Apr 192023: Apr 242024: Apr 62025: Apr 9

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 262000201020201991: Oct 161992: Oct 181993: Oct 281994: Oct 251996: Oct 311997: Oct 221998: Nov 51999: Oct 242000: Oct 82001: Oct 272003: Oct 32004: Nov 92006: Oct 132007: Oct 292008: Oct 282009: Oct 182010: Nov 62011: Nov 112012: Nov 12016: Nov 102017: Oct 262021: Nov 32022: Oct 92023: Oct 312024: Oct 172025: Oct 25

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2025Apr 9Oct 25Mar 21Nov 10
2024Apr 6Oct 17Apr 6Nov 27
2023Apr 24Oct 31Apr 24Oct 31
2022Apr 19Oct 9Apr 2Oct 20
2021Apr 22Nov 3Apr 3Nov 3
2018Apr 29no dataApr 17no data
2017Apr 8Oct 26Mar 19Oct 31
2016Apr 12Nov 10Apr 9Nov 13
2012no dataNov 1no dataNov 13
2011Apr 2Nov 11Mar 28Dec 1
2010Mar 27Nov 6Mar 8Nov 6
2009Mar 31Oct 18Mar 31Dec 4
2008no dataOct 28no dataOct 28
2007no dataOct 29no dataNov 16
2006no dataOct 13no dataNov 2
2004no dataNov 9no dataDec 14
2003Apr 1Oct 3Mar 31Nov 8
2001Apr 19Oct 27Apr 19Oct 27
2000Apr 9Oct 8Apr 9Nov 15
1999Mar 28Oct 24Mar 28Nov 17
1998Mar 25Nov 5Mar 25Nov 5
1997Apr 15Oct 22Apr 9Oct 28
1996no dataOct 31no dataNov 3
1995Apr 6no dataApr 5no data
1994Apr 8Oct 25Apr 8Nov 23
1993Apr 18Oct 28Apr 3Nov 1
1992Apr 6Oct 18Mar 24Oct 19
1991Mar 31Oct 16Mar 31Oct 16

"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.