Hoopeston, IL: frost dates by year

Last spring and first fall frost at NOAA station USC00114198, 1951 to 2025, measured from daily minimum temperatures.

Elevation 710 ft, 40.466, -87.685. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 23	Oct 16
Earliest	Mar 27 (1999)	Sep 20 (1991)
Latest	May 21 (2002)	Nov 8 (1956)
Trend	0.6 days earlier per decade	little change (less than half a day per decade)
Years with data	74	75

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 30.

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 16	Oct 23	Apr 8	Oct 24
2024	Apr 25	Oct 16	Apr 6	Oct 26
2023	Apr 26	Oct 30	Apr 24	Oct 30
2022	Apr 27	Oct 8	Apr 2	Oct 19
2021	May 8	Nov 1	Apr 2	Nov 3
2020	May 9	Oct 5	May 9	Oct 30
2019	Apr 15	Oct 12	Apr 1	Nov 1
2018	Apr 29	Oct 12	Apr 29	Oct 18
2017	Apr 8	Oct 31	Mar 23	Nov 8
2016	Apr 12	Oct 22	Apr 12	Nov 12
2015	Apr 28	Oct 17	Apr 4	Oct 17
2014	Apr 23	Oct 30	Apr 16	Nov 1
2013	Apr 21	Oct 21	Apr 3	Oct 22
2012	Apr 23	Oct 6	Apr 12	Nov 1
2011	Apr 5	Oct 21	Apr 1	Nov 11
2010	Apr 28	Oct 22	Mar 26	Oct 29
2009	Apr 15	Oct 10	Apr 12	Nov 12
2008	Apr 29	Oct 22	Mar 29	Oct 28
2007	Apr 16	Oct 28	Apr 10	Nov 7
2006	Apr 26	Oct 12	Apr 9	Oct 24
2005	May 4	Oct 28	May 3	Nov 16
2004	Apr 14	Oct 5	Apr 14	Nov 8
2003	Apr 23	Oct 2	Apr 14	Oct 2
2002	May 21	Oct 14	Apr 6	Oct 14
2001	Apr 18	Oct 7	Apr 18	Nov 9
2000	Apr 13	Oct 7	Apr 12	Oct 7
1999	Mar 27	Oct 6	Mar 27	Oct 23
1998	Apr 5	Oct 22	Mar 24	Nov 20
1997	Apr 24	Oct 21	Apr 14	Oct 21
1996	Apr 17	Oct 19	Apr 14	Nov 1
1995	Apr 5	Sep 23	Apr 5	Nov 3
1994	Apr 8	Oct 27	Apr 7	Nov 19
1993	Apr 17	Sep 30	Apr 4	Nov 1
1992	May 6	Oct 17	Apr 5	Oct 19
1991	Apr 22	Sep 20	Mar 30	Oct 16
1990	Apr 18	Oct 19	Apr 12	Oct 19
1989	May 7	Oct 4	May 7	Nov 3
1988	Apr 21	Oct 6	Apr 19	Oct 12
1987	Apr 9	Oct 3	Apr 9	Oct 12
1986	no data	Nov 3	no data	Nov 3
1985	Apr 10	Oct 2	Apr 9	Nov 20
1984	Apr 20	Nov 2	Apr 7	Nov 2
1983	May 9	Nov 4	Apr 20	Nov 4
1982	Apr 28	Oct 22	Apr 11	Oct 22
1981	May 12	Oct 3	Mar 25	Oct 23
1980	Apr 26	Oct 5	Mar 22	Oct 5
1979	Apr 10	Oct 10	Apr 10	Oct 13
1978	May 3	Oct 15	May 3	Oct 24
1977	May 10	Oct 13	Apr 29	Nov 11
1976	May 8	Oct 16	Apr 27	Oct 18
1975	Apr 21	Oct 26	Apr 13	Nov 14
1974	May 7	Sep 23	Apr 24	Oct 21
1973	Apr 14	Nov 3	Apr 13	Nov 5
1972	Apr 25	Oct 15	Apr 9	Oct 19
1971	May 3	Nov 4	Apr 7	Nov 4
1970	May 6	Oct 16	Apr 7	Nov 16
1969	Apr 30	Oct 15	Mar 31	Oct 23
1968	May 6	Oct 4	May 6	Nov 11
1967	Apr 27	Oct 12	Mar 22	Oct 12
1966	May 10	Oct 23	May 10	Oct 25
1965	Apr 3	Oct 5	Mar 31	Oct 29
1964	Apr 9	Oct 6	Apr 9	Oct 10
1963	May 1	Oct 29	Apr 12	Nov 2
1962	Apr 20	Oct 24	Apr 20	Oct 24
1961	May 2	Oct 27	Apr 16	Nov 4
1960	May 12	Oct 20	Apr 10	Oct 20
1959	Apr 22	Oct 12	Apr 11	Oct 28
1958	May 7	Oct 1	Mar 31	Nov 6
1957	Apr 15	Oct 20	Apr 15	Nov 6
1956	Apr 24	Nov 8	Apr 24	Nov 9
1955	Apr 8	Oct 25	Mar 29	Nov 3
1954	May 4	Oct 19	Apr 9	Oct 31
1953	Apr 21	Oct 29	Apr 19	Nov 6
1952	Apr 16	Oct 3	Apr 11	Oct 6
1951	Apr 23	Oct 31	Apr 17	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.