Last Frost Day

Frost history / Cloquet, MN

Cloquet, MN: frost dates by year

Last spring and first fall frost at NOAA station USC00211630, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,265 ft, 46.705, -92.524. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 30Sep 19
EarliestMay 9 (1977)Aug 27 (1968)
LatestJun 21 (1992)Oct 17 (2021)
Trend1.7 days earlier per decade1.5 days later per decade
Years with data7274

At 28°F (hard freeze) the median last spring date is May 14 and the median first fall date is Sep 28.

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 2919601970198019902000201020201951: Jun 41952: Jun 11953: Jun 71954: Jun 51955: May 171956: Jun 11957: Jun 71958: Jun 141959: May 221960: Jun 71961: Jun 151962: Jun 121963: Jun 211964: Jun 41965: May 291966: Jun 101967: May 221968: Jun 151969: Jun 201970: May 231971: Jun 91972: Jun 171973: May 301974: May 141975: May 161976: May 241977: May 91978: May 211979: Jun 11980: May 161981: May 311982: Jun 31983: Jun 91984: May 291985: Jun 51986: Jun 21987: May 241988: Jun 91989: May 271990: Jun 41991: May 191992: Jun 211993: May 291994: Jun 31995: Jun 91996: May 301997: Jun 141998: May 101999: May 92000: Jun 52001: May 122002: May 212003: May 252004: May 292005: May 162006: May 222007: May 282008: May 282010: May 172011: May 272012: Jun 12013: Jun 182014: May 172015: Jun 12018: May 212019: Jun 132020: May 312021: May 292022: May 212023: May 152024: May 112025: May 25

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201951: Sep 241952: Sep 161953: Sep 131954: Sep 201955: Sep 111956: Sep 71957: Sep 171958: Sep 101959: Sep 111960: Sep 181961: Sep 41962: Sep 191963: Sep 131964: Sep 121965: Sep 111966: Sep 251967: Sep 101968: Aug 271969: Sep 241970: Sep 131971: Sep 171972: Sep 51973: Sep 201974: Sep 11975: Sep 121976: Aug 291977: Oct 11978: Sep 251979: Sep 191980: Sep 231981: Sep 201982: Sep 211983: Sep 141984: Sep 261985: Sep 111986: Sep 71987: Sep 251988: Sep 61989: Sep 131990: Sep 231991: Sep 201992: Sep 191993: Sep 61994: Sep 291995: Sep 171996: Oct 31997: Sep 211998: Sep 221999: Sep 212000: Sep 242001: Sep 242002: Sep 242003: Sep 292004: Sep 292005: Sep 232006: Sep 92007: Sep 122008: Sep 92009: Sep 302010: Sep 52011: Sep 152012: Sep 192013: Sep 132014: Sep 122015: Sep 292017: Sep 302018: Sep 292019: Sep 282020: Sep 92021: Oct 172022: Sep 272023: Sep 132024: Sep 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
2025May 25Oct 8May 3Oct 8
2024May 11Sep 7May 10Oct 8
2023May 15Sep 13May 3Oct 17
2022May 21Sep 27May 5Sep 28
2021May 29Oct 17May 29Oct 22
2020May 31Sep 9May 13Sep 17
2019Jun 13Sep 28May 7Oct 14
2018May 21Sep 29May 20Sep 29
2017no dataSep 30no dataOct 10
2015Jun 1Sep 29May 20Oct 7
2014May 17Sep 12May 17Sep 13
2013Jun 18Sep 13May 14Oct 17
2012Jun 1Sep 19Apr 27Sep 25
2011May 27Sep 15May 16Sep 15
2010May 17Sep 5May 10Sep 26
2009no dataSep 30no dataSep 30
2008May 28Sep 9May 27Oct 3
2007May 28Sep 12May 17Sep 12
2006May 22Sep 9May 22Sep 20
2005May 16Sep 23May 16Oct 7
2004May 29Sep 29May 15Oct 4
2003May 25Sep 29May 3Sep 29
2002May 21Sep 24May 20Oct 3
2001May 12Sep 24Apr 25Sep 24
2000Jun 5Sep 24May 19Sep 24
1999May 9Sep 21Apr 24Oct 2
1998May 10Sep 22Apr 28Oct 2
1997Jun 14Sep 21May 13Oct 14
1996May 30Oct 3May 30Oct 3
1995Jun 9Sep 17Jun 8Sep 20
1994Jun 3Sep 29May 10Oct 9
1993May 29Sep 6Apr 26Oct 2
1992Jun 21Sep 19May 26Sep 29
1991May 19Sep 20May 3Sep 27
1990Jun 4Sep 23May 11Sep 23
1989May 27Sep 13May 12Sep 26
1988Jun 9Sep 6May 25Oct 5
1987May 24Sep 25May 4Oct 3
1986Jun 2Sep 7May 20Sep 7
1985Jun 5Sep 11May 1Sep 25
1984May 29Sep 26May 2Sep 26
1983Jun 9Sep 14Jun 6Sep 23
1982Jun 3Sep 21May 21Oct 16
1981May 31Sep 20May 19Oct 2
1980May 16Sep 23May 15Sep 26
1979Jun 1Sep 19May 4Oct 7
1978May 21Sep 25May 6Oct 7
1977May 9Oct 1May 9Oct 16
1976May 24Aug 29May 7Sep 24
1975May 16Sep 12May 12Sep 13
1974May 14Sep 1May 13Sep 22
1973May 30Sep 20May 17Sep 20
1972Jun 17Sep 5May 9Sep 30
1971Jun 9Sep 17May 21Sep 19
1970May 23Sep 13May 6Sep 28
1969Jun 20Sep 24Apr 29Oct 12
1968Jun 15Aug 27May 5Oct 5
1967May 22Sep 10May 20Sep 28
1966Jun 10Sep 25May 12Sep 26
1965May 29Sep 11May 29Sep 26
1964Jun 4Sep 12Jun 1Sep 15
1963Jun 21Sep 13May 23Sep 13
1962Jun 12Sep 19May 9Sep 20
1961Jun 15Sep 4May 26Sep 25
1960Jun 7Sep 18May 12Sep 29
1959May 22Sep 11May 16Sep 16
1958Jun 14Sep 10May 28Oct 1
1957Jun 7Sep 17May 16Sep 20
1956Jun 1Sep 7May 24Sep 20
1955May 17Sep 11May 17Sep 12
1954Jun 5Sep 20May 26Oct 5
1953Jun 7Sep 13May 17Sep 13
1952Jun 1Sep 16May 29Sep 21
1951Jun 4Sep 24May 13Sep 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 1991–2020 frost probabilities.