Last Frost Day

Frost history / Marshall, MN

Marshall, MN: frost dates by year

Last spring and first fall frost at NOAA station USC00215204, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,149 ft, 44.472, -95.790. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 3Oct 6
EarliestApr 8 (2006)Sep 16 (2011)
LatestJun 8 (1995)Oct 29 (1963)
Trend0.8 days earlier per decadelittle change (less than half a day per decade)
Years with data7273

At 28°F (hard freeze) the median last spring date is Apr 20 and the median first fall date is Oct 15.

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 1419601970198019902000201020201951: Apr 221952: Apr 151953: May 131954: May 91955: May 81956: May 41957: May 41958: May 51959: May 151960: May 111961: May 31962: Apr 281963: May 221964: Apr 191965: May 281966: May 111967: May 201968: May 181969: Apr 281970: May 21971: May 121972: Apr 251973: May 141974: May 61975: Apr 211977: May 21978: May 61979: May 121982: May 71983: May 291984: May 21985: Apr 141986: May 31987: Apr 111988: Apr 261989: May 61990: May 31991: Apr 231992: May 51993: Apr 261994: Apr 301995: Jun 81996: May 31997: May 151998: Apr 171999: Apr 242000: Apr 172001: Apr 232002: May 22003: Apr 132004: May 142005: May 32006: Apr 82007: Apr 172008: May 32009: Apr 292010: May 92011: May 192012: Apr 172013: May 122014: May 162015: Apr 242016: May 142017: May 22018: Apr 262019: May 102020: May 122021: May 112022: Apr 282023: Apr 262024: Apr 212025: Apr 29

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 241952: Sep 221953: Oct 41954: Oct 61955: Oct 151956: Sep 301957: Oct 181958: Oct 51959: Oct 91960: Oct 191961: Sep 281962: Oct 201963: Oct 291964: Oct 61965: Sep 261966: Oct 151967: Sep 271968: Oct 41969: Oct 131970: Oct 91971: Oct 281972: Oct 91973: Oct 161974: Sep 221975: Oct 11977: Oct 21978: Oct 221980: Oct 31981: Oct 21982: Oct 61983: Oct 131984: Sep 251985: Sep 261986: Oct 61987: Oct 31988: Oct 31989: Sep 231990: Sep 241991: Sep 191992: Sep 281993: Oct 21994: Oct 131995: Sep 221996: Oct 31997: Oct 131998: Oct 131999: Oct 12000: Sep 242001: Oct 52002: Oct 72003: Oct 12004: Oct 22005: Oct 102006: Oct 112007: Oct 262008: Oct 162009: Oct 92010: Oct 282011: Sep 162012: Sep 232013: Oct 182014: Oct 102015: Oct 162016: Oct 82017: Oct 102018: Oct 42019: Oct 112020: Oct 22021: Oct 232022: Sep 282023: Oct 112024: Oct 142025: Oct 22

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 29Oct 22Apr 20Oct 22
2024Apr 21Oct 14Apr 5Oct 15
2023Apr 26Oct 11Apr 25Oct 28
2022Apr 28Sep 28Apr 27Oct 17
2021May 11Oct 23Apr 22Oct 23
2020May 12Oct 2Apr 21Oct 15
2019May 10Oct 11Apr 19Oct 24
2018Apr 26Oct 4Apr 21Oct 5
2017May 2Oct 10Apr 29Oct 11
2016May 14Oct 8Apr 12Oct 24
2015Apr 24Oct 16Apr 24Oct 16
2014May 16Oct 10Apr 18Oct 31
2013May 12Oct 18May 3Oct 22
2012Apr 17Sep 23Apr 12Oct 7
2011May 19Sep 16May 19Oct 19
2010May 9Oct 28Apr 9Oct 29
2009Apr 29Oct 9Apr 12Oct 9
2008May 3Oct 16Apr 28Oct 28
2007Apr 17Oct 26Apr 14Nov 6
2006Apr 8Oct 11Apr 8Oct 11
2005May 3Oct 10May 3Oct 20
2004May 14Oct 2Apr 25Oct 4
2003Apr 13Oct 1Apr 8Oct 1
2002May 2Oct 7Apr 9Oct 20
2001Apr 23Oct 5Apr 17Oct 6
2000Apr 17Sep 24Apr 15Sep 24
1999Apr 24Oct 1Apr 18Oct 2
1998Apr 17Oct 13Apr 2Oct 13
1997May 15Oct 13May 13Oct 21
1996May 3Oct 3Apr 26Oct 3
1995Jun 8Sep 22Apr 10Oct 21
1994Apr 30Oct 13Apr 30Nov 4
1993Apr 26Oct 2Apr 4Oct 9
1992May 5Sep 28Apr 22Oct 15
1991Apr 23Sep 19Apr 10Oct 15
1990May 3Sep 24Apr 17Oct 18
1989May 6Sep 23Apr 17Oct 3
1988Apr 26Oct 3Apr 18Oct 4
1987Apr 11Oct 3Apr 6Oct 7
1986May 3Oct 6May 3Oct 9
1985Apr 14Sep 26Apr 9Oct 10
1984May 2Sep 25Mar 23Sep 26
1983May 29Oct 13May 29Oct 14
1982May 7Oct 6Apr 29Oct 20
1981no dataOct 2no dataOct 2
1980no dataOct 3no dataOct 12
1979May 12no dataApr 9no data
1978May 6Oct 22May 2Oct 23
1977May 2Oct 2Apr 8Oct 9
1975Apr 21Oct 1Apr 13Oct 11
1974May 6Sep 22Apr 23Sep 22
1973May 14Oct 16Apr 27Oct 29
1972Apr 25Oct 9Apr 9Oct 17
1971May 12Oct 28Apr 14Oct 31
1970May 2Oct 9May 2Oct 10
1969Apr 28Oct 13Apr 6Oct 22
1968May 18Oct 4May 5Oct 24
1967May 20Sep 27May 4Oct 11
1966May 11Oct 15May 1Oct 24
1965May 28Sep 26Apr 17Sep 26
1964Apr 19Oct 6Apr 9Oct 9
1963May 22Oct 29May 22Oct 29
1962Apr 28Oct 20Apr 16Oct 24
1961May 3Sep 28May 2Oct 1
1960May 11Oct 19May 1Oct 19
1959May 15Oct 9May 15Oct 12
1958May 5Oct 5Apr 30Nov 6
1957May 4Oct 18May 4Oct 19
1956May 4Sep 30Apr 30Oct 23
1955May 8Oct 15Apr 7Oct 15
1954May 9Oct 6May 8Oct 18
1953May 13Oct 4Apr 20Oct 26
1952Apr 15Sep 22Apr 11Oct 4
1951Apr 22Sep 24Apr 22Sep 28

"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.