Elk Rvr, MN: frost dates by year

Last spring and first fall frost at NOAA station USC00212500, 2007 to 2025, measured from daily minimum temperatures.

Elevation 880 ft, 45.305, -93.584. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	May 2	Oct 14
Earliest	Apr 14 (2009)	Sep 28 (2022)
Latest	May 16 (2016)	Oct 29 (2010)
Trend	2.3 days later per decade	3.5 days earlier per decade
Years with data	18	19

At 28°F (hard freeze) the median last spring date is Apr 22 and the median first fall date is Oct 25.

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 21	Oct 23	Apr 8	Nov 9
2024	Apr 24	Oct 14	Apr 22	Oct 16
2023	May 3	Oct 28	Apr 24	Oct 28
2022	Apr 28	Sep 28	Apr 27	Oct 17
2021	May 13	Oct 17	Apr 26	Oct 22
2020	May 13	Oct 2	May 13	Oct 20
2019	May 11	Oct 12	Apr 28	Oct 25
2018	May 1	Sep 30	Apr 21	Oct 12
2017	May 5	Oct 10	May 5	Oct 28
2016	May 16	Oct 9	Apr 13	Nov 11
2015	Apr 24	Oct 16	Apr 23	Oct 17
2014	Apr 19	Oct 9	Apr 19	Oct 31
2013	May 12	Oct 20	Apr 25	Oct 22
2012	Apr 17	Oct 7	Apr 12	Oct 7
2011	May 3	Oct 21	Apr 21	Oct 29
2010	May 9	Oct 29	Mar 27	Oct 29
2009	Apr 14	Oct 9	Apr 8	Oct 10
2008	Apr 30	Oct 17	Apr 30	Oct 28
2007	no data	Oct 27	no data	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 1991–2020 frost probabilities.