Last Frost Day

Frost history / Kabetogama, MN

Kabetogama, MN: frost dates by year

Last spring and first fall frost at NOAA station USC00214191, 2003 to 2025, measured from daily minimum temperatures.

Elevation 1,200 ft, 48.409, -93.048. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 27Sep 14
EarliestMay 5 (2023)Aug 20 (2004)
LatestJun 22 (2004)Oct 17 (2021)
Trend3.7 days earlier per decade3.7 days later per decade
Years with data1923

At 28°F (hard freeze) the median last spring date is May 16 and the median first fall date is Oct 2.

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 30May 15May 30Jun 14Jun 29201020202003: Jun 12004: Jun 222005: May 122006: May 212007: May 272010: May 152011: May 292012: Jun 12013: Jun 32014: May 192015: Jun 22016: Jun 82018: May 212019: Jun 32020: May 182021: May 302023: May 52024: May 262025: May 25

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27201020202003: Sep 272004: Aug 202005: Sep 222006: Sep 82007: Sep 112008: Sep 152009: Sep 302010: Sep 62011: Sep 142012: Sep 142013: Sep 162014: Sep 132015: Sep 292016: Oct 132017: Oct 72018: Sep 62019: Sep 282020: Sep 82021: Oct 172022: Sep 282023: Sep 132024: Sep 72025: Sep 7

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
2025May 25Sep 7May 25Oct 8
2024May 26Sep 7May 6Oct 4
2023May 5Sep 13May 5Oct 15
2022no dataSep 28no dataSep 28
2021May 30Oct 17May 29Oct 22
2020May 18Sep 8May 14Sep 9
2019Jun 3Sep 28May 22Oct 20
2018May 21Sep 6May 12Sep 29
2017no dataOct 7no dataOct 7
2016Jun 8Oct 13May 17Oct 13
2015Jun 2Sep 29May 20Sep 29
2014May 19Sep 13May 17Oct 6
2013Jun 3Sep 16May 13Oct 14
2012Jun 1Sep 14May 16Sep 18
2011May 29Sep 14May 29Sep 15
2010May 15Sep 6May 10Oct 2
2009no dataSep 30no dataSep 30
2008no dataSep 15no dataOct 3
2007May 27Sep 11Apr 25Sep 14
2006May 21Sep 8May 21Sep 8
2005May 12Sep 22May 11Sep 22
2004Jun 22Aug 20May 27Oct 3
2003Jun 1Sep 27May 14Sep 30

"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.