Paxton 2 Wsw, IL: frost dates by year

Last spring and first fall frost at NOAA station USC00116663, 1988 to 2020, measured from daily minimum temperatures.

Elevation 758 ft, 40.455, -88.142. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 23	Oct 12
Earliest	Apr 1 (2017)	Sep 22 (1999)
Latest	May 21 (2002)	Nov 11 (1994)
Trend	0.6 days later per decade	little change (less than half a day per decade)
Years with data	29	29

At 28°F (hard freeze) the median last spring date is Apr 12 and the median first fall date is Oct 22.

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
2020	May 9	Oct 5	May 9	Oct 5
2019	Apr 15	Oct 12	Apr 2	Nov 1
2018	Apr 30	Oct 12	Apr 29	Oct 18
2017	Apr 1	Oct 29	Mar 23	Nov 8
2016	Apr 13	Oct 22	Apr 13	Nov 12
2015	May 1	Oct 17	Apr 24	Oct 17
2014	Apr 24	Oct 19	Apr 23	Nov 2
2013	Apr 22	Oct 22	Apr 5	Oct 22
2012	Apr 24	Sep 24	Apr 13	Oct 8
2011	Apr 6	Oct 2	Apr 1	Oct 28
2010	May 9	Oct 4	Apr 18	Oct 4
2009	Apr 15	Oct 10	Apr 12	Oct 18
2008	Apr 29	Oct 21	Apr 15	Oct 28
2007	Apr 16	Oct 28	Apr 10	Nov 1
2006	Apr 26	Oct 13	Apr 10	Oct 15
2005	May 4	Oct 16	Mar 24	Oct 28
2004	Apr 14	Sep 30	Apr 14	Oct 5
2003	Apr 23	Oct 2	Apr 23	Oct 2
2002	May 21	Oct 14	Apr 7	Oct 14
2001	May 13	Oct 6	Apr 17	Oct 7
2000	Apr 26	Oct 7	Apr 12	Oct 7
1999	Apr 13	Sep 22	Mar 29	Oct 18
1998	Apr 17	Oct 14	Apr 5	Oct 22
1995	Apr 11	no data	Apr 6	no data
1994	Apr 7	Nov 11	Apr 7	Nov 22
1993	no data	Oct 9	no data	Oct 30
1992	Apr 28	no data	Apr 6	no data
1991	Apr 2	Oct 16	Mar 31	Nov 2
1990	no data	Oct 19	no data	Oct 19
1989	May 8	Oct 4	May 7	Nov 3
1988	Apr 20	Oct 12	Apr 19	Oct 29

"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.