Chenoa, IL: frost dates by year

Last spring and first fall frost at NOAA station USC00111475, 1951 to 2023, measured from daily minimum temperatures.

Elevation 719 ft, 40.741, -88.718. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 23	Oct 11
Earliest	Mar 29 (1999)	Sep 18 (1959)
Latest	May 29 (1965)	Nov 4 (1973)
Trend	2.1 days earlier per decade	1.4 days later per decade
Years with data	59	61

At 28°F (hard freeze) the median last spring date is Apr 11 and the median first fall date is Oct 24.

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
2023	Apr 26	no data	Mar 21	no data
2021	Apr 22	Nov 3	Apr 3	Nov 3
2020	no data	Oct 30	no data	Nov 2
2019	Apr 29	no data	Apr 2	no data
2018	Apr 30	Oct 12	Apr 29	Oct 18
2017	no data	Oct 28	no data	Oct 29
2014	Apr 22	Oct 19	Apr 16	Nov 1
2013	Apr 4	no data	Apr 4	no data
2012	Apr 23	Oct 6	Apr 12	Oct 8
2011	Apr 21	Oct 21	Mar 31	Nov 11
2010	Apr 28	Oct 4	Mar 26	Oct 22
2009	Apr 12	Oct 10	Apr 12	Nov 13
2008	Apr 29	Oct 28	Apr 14	Oct 28
2007	Apr 13	Oct 28	Apr 10	Nov 2
2006	Apr 9	Oct 12	Apr 9	Oct 24
2005	May 4	Oct 28	May 3	Nov 17
2004	Apr 14	Oct 5	Apr 13	Oct 5
2003	Apr 23	Oct 2	Apr 13	Oct 2
2002	May 21	Oct 14	Apr 6	Oct 20
2001	Apr 18	Oct 17	Apr 17	Oct 28
2000	Apr 13	Oct 7	Apr 8	Oct 7
1999	Mar 29	Oct 5	Mar 27	Oct 18
1998	Apr 5	Oct 22	Apr 5	Nov 6
1997	Apr 28	Oct 15	Apr 14	Oct 22
1996	Apr 27	Oct 11	Apr 14	Oct 31
1995	Apr 10	Sep 23	Apr 5	Sep 23
1994	Apr 23	Oct 25	Apr 7	Nov 19
1993	Apr 21	Sep 30	Apr 4	Oct 10
1992	May 6	Oct 17	Apr 5	Oct 17
1991	Apr 2	Oct 13	Mar 30	Nov 2
1990	Apr 18	Oct 12	Apr 18	Oct 19
1989	no data	Sep 25	no data	Oct 18
1988	Apr 21	Oct 5	Mar 27	Oct 6
1987	Apr 9	Oct 3	Apr 9	Oct 3
1986	Apr 23	Oct 18	Apr 23	Nov 3
1985	Apr 10	Oct 2	Apr 9	Nov 20
1984	Apr 7	Sep 30	Mar 23	Sep 30
1983	May 9	Sep 24	Apr 20	Nov 12
1982	Apr 28	Oct 21	Apr 11	Oct 23
1981	May 12	Oct 3	Apr 6	Oct 23
1980	Apr 26	Oct 5	Apr 14	Oct 5
1979	Apr 10	Oct 10	Apr 10	Oct 14
1978	no data	Oct 8	no data	Oct 8
1977	May 10	no data	Apr 29	no data
1976	May 3	Sep 22	Apr 13	Oct 17
1975	Apr 21	Oct 2	Apr 13	Oct 30
1974	Apr 24	Sep 23	Apr 24	Sep 23
1973	Apr 17	Nov 4	Apr 13	Nov 5
1972	May 10	Oct 15	Apr 25	Oct 15
1971	May 3	Nov 1	Apr 5	Nov 4
1970	Apr 7	Oct 10	Apr 7	Nov 1
1966	no data	Oct 17	no data	Oct 25
1965	May 29	no data	May 29	no data
1963	May 23	Oct 29	Apr 11	Oct 30
1962	Apr 20	Oct 24	Apr 20	Oct 24
1961	May 4	Oct 2	Apr 16	Nov 4
1960	May 12	Oct 20	Apr 10	Oct 20
1959	no data	Sep 18	no data	Oct 29
1958	May 7	Oct 1	Mar 29	Nov 21
1957	May 5	Sep 28	Apr 15	Oct 20
1956	May 8	Sep 20	Apr 24	Sep 20
1955	Apr 8	Oct 24	Apr 8	Nov 3
1954	May 20	Oct 19	May 4	Oct 30
1953	Apr 21	Oct 7	Apr 20	Nov 5
1952	Apr 16	Oct 3	Apr 11	Oct 3
1951	no data	Oct 20	no data	Nov 1

"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.