Last Frost Day

Frost history / New York Mills, MN

New York Mills, MN: frost dates by year

Last spring and first fall frost at NOAA station USC00215902, 2005 to 2025, measured from daily minimum temperatures.

Elevation 1,406 ft, 46.523, -95.385. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Oct 6
EarliestApr 19 (2007)Sep 9 (2020)
LatestJun 3 (2009)Oct 21 (2021)
Trend5.2 days earlier per decade4.0 days later per decade
Years with data2019

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

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)

Mar 31Apr 15Apr 30May 15May 30Jun 14201020202006: May 222007: Apr 192008: May 182009: Jun 32010: May 132011: May 32012: May 122013: May 122014: May 162015: May 212016: May 152017: May 112018: May 102019: May 182020: May 132021: May 282022: May 32023: May 22024: Apr 252025: Apr 30

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27201020202005: Oct 62006: Oct 52007: Sep 122009: Oct 92010: Oct 32011: Sep 152013: Oct 122014: Oct 52015: Oct 72016: Oct 72017: Oct 102018: Sep 292019: Sep 282020: Sep 92021: Oct 212022: Sep 282023: Oct 102024: Oct 142025: 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 30Oct 8Apr 30Oct 8
2024Apr 25Oct 14Apr 24Oct 15
2023May 2Oct 10Apr 27Oct 28
2022May 3Sep 28Apr 29Oct 17
2021May 28Oct 21May 11Oct 21
2020May 13Sep 9May 12Oct 4
2019May 18Sep 28May 7Oct 24
2018May 10Sep 29Apr 28Sep 29
2017May 11Oct 10Apr 29Oct 10
2016May 15Oct 7May 15Oct 9
2015May 21Oct 7Apr 28Oct 16
2014May 16Oct 5May 16Oct 9
2013May 12Oct 12May 12Oct 18
2012May 12no dataApr 26no data
2011May 3Sep 15May 3Sep 15
2010May 13Oct 3May 13Oct 17
2009Jun 3Oct 9Apr 22Oct 9
2008May 18no dataMay 11no data
2007Apr 19Sep 12Apr 15Sep 15
2006May 22Oct 5Apr 25Oct 10
2005no dataOct 6no dataOct 7

"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.