Last Frost Day

Frost history / Mabel, MN

Mabel, MN: frost dates by year

Last spring and first fall frost at NOAA station USC00214990, 2014 to 2025, measured from daily minimum temperatures.

Elevation 1,112 ft, 43.524, -91.761. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Oct 5
EarliestApr 25 (2024)Sep 13 (2014)
LatestMay 29 (2021)Oct 17 (2021)
Trend11.2 days earlier per decade13.5 days later per decade
Years with data1212

At 28°F (hard freeze) the median last spring date is May 3 and the median first fall date is Oct 12.

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)

Apr 15Apr 30May 15May 30Jun 1420202014: May 182015: May 132016: May 182017: May 52018: Apr 302019: May 122020: May 132021: May 292022: May 242023: May 42024: Apr 252025: Apr 26

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 2720202014: Sep 132015: Sep 302016: Oct 82017: Sep 302018: Sep 292019: Oct 122020: Oct 22021: Oct 172022: Sep 282023: Oct 102024: Oct 72025: Oct 8

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2025Apr 26Oct 8Apr 20Oct 24
2024Apr 25Oct 7Apr 25Oct 15
2023May 4Oct 10May 4Oct 11
2022May 24Sep 28May 23Sep 28
2021May 29Oct 17May 12Oct 22
2020May 13Oct 2May 13Oct 2
2019May 12Oct 12May 3Oct 12
2018Apr 30Sep 29Apr 30Oct 12
2017May 5Sep 30May 3Oct 29
2016May 18Oct 8May 17Oct 8
2015May 13Sep 30Apr 27Oct 14
2014May 18Sep 13Apr 23Oct 10

"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.