Humboldt, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00143867, 1997 to 2025, measured from daily minimum temperatures.

Elevation 940 ft, 37.812, -95.446. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 12	Oct 25
Earliest	Mar 11 (2012)	Sep 28 (2003)
Latest	May 3 (2005)	Nov 13 (2021)
Trend	1.9 days later per decade	3.4 days later per decade
Years with data	28	28

At 28°F (hard freeze) the median last spring date is Mar 31 and the median first fall date is Oct 31.

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 8	Nov 2	Mar 21	Nov 2
2024	Apr 5	Oct 16	Mar 29	Oct 16
2023	Apr 23	Oct 30	Apr 23	Oct 30
2022	Apr 20	Oct 19	Apr 9	Oct 19
2021	Apr 23	Nov 13	Apr 1	Nov 13
2020	Apr 18	Oct 26	Mar 21	Oct 27
2019	Apr 12	Oct 12	Apr 1	Oct 31
2018	Apr 19	Oct 16	Apr 15	Nov 9
2017	Apr 7	Oct 28	Mar 17	Oct 28
2016	Apr 3	Nov 13	Apr 2	Nov 19
2015	Apr 5	Oct 30	Mar 8	Nov 13
2014	Apr 16	Nov 1	Apr 16	Nov 1
2013	Apr 25	Oct 20	Mar 27	Nov 12
2012	Mar 11	Oct 7	Mar 10	Oct 27
2011	Apr 5	Oct 20	Mar 15	Oct 20
2010	Mar 30	Oct 29	Mar 23	Nov 6
2009	Apr 11	Nov 5	Apr 8	Nov 26
2008	Apr 15	Oct 27	Apr 15	Oct 28
2007	Apr 16	Nov 1	Apr 9	Nov 7
2006	Apr 10	Oct 13	Mar 26	Oct 23
2005	May 3	Oct 25	Apr 24	Nov 16
2004	May 3	Oct 3	May 3	Oct 3
2003	no data	Sep 28	no data	Nov 7
2002	Apr 4	no data	Apr 4	no data
2001	Apr 18	Oct 16	Mar 28	Oct 27
2000	Apr 9	Oct 7	Mar 13	Oct 8
1999	Mar 27	Oct 18	Mar 27	Oct 24
1998	Mar 22	Nov 11	Mar 22	Dec 8
1997	Apr 16	Oct 27	Apr 13	Oct 27

"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.