Last Frost Day

Frost history / Luck, WI

Luck, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00474894, 1971 to 2025, measured from daily minimum temperatures.

Elevation 1,220 ft, 45.573, -92.485. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 8Sep 29
EarliestApr 11 (1985)Sep 1 (1974)
LatestJun 21 (1992)Oct 28 (2023)
Trend1.4 days earlier per decade4.2 days later per decade
Years with data5354

At 28°F (hard freeze) the median last spring date is Apr 27 and the median first fall date is Oct 7.

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 14Jun 29198019902000201020201972: May 31973: May 171974: May 131975: May 121976: May 181977: May 21978: May 31979: May 251980: May 151981: May 191982: May 11983: May 261984: May 21985: Apr 111986: May 211987: Apr 301988: May 171989: May 71990: May 111991: May 61992: Jun 211993: May 161994: May 61995: May 21996: May 131997: May 211998: Apr 171999: Apr 202000: May 192001: Apr 252003: Apr 222004: May 152005: May 42006: May 212007: Apr 152008: Apr 292009: Apr 282010: May 82011: May 162012: Apr 232013: May 122014: Apr 262015: May 192016: May 152017: Apr 282018: Apr 282019: May 202020: May 132021: May 112022: Apr 282023: May 32024: Apr 242025: May 19

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11198019902000201020201971: Sep 171972: Sep 221973: Sep 181974: Sep 11975: Sep 131976: Sep 221977: Oct 21978: Sep 251979: Oct 21980: Sep 171981: Sep 171982: Sep 211983: Sep 231984: Sep 151985: Sep 241986: Sep 71987: Oct 31988: Oct 31989: Sep 231990: Oct 91991: Sep 201992: Sep 291993: Sep 181995: Sep 201996: Sep 141997: Oct 141998: Oct 31999: Oct 22000: Sep 242001: Sep 252002: Oct 72003: Sep 292004: Oct 22005: Oct 72006: Oct 102007: Sep 122008: Oct 32009: Oct 92010: Oct 32011: Sep 152012: Sep 232013: Oct 202014: Oct 42015: Oct 162016: Oct 82017: Oct 102018: Sep 292019: Oct 122020: Sep 102021: Oct 222022: Sep 282023: Oct 282024: 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
2025May 19Oct 8Apr 16Oct 24
2024Apr 24Oct 14Apr 20Oct 16
2023May 3Oct 28Apr 26Oct 28
2022Apr 28Sep 28Apr 27Oct 18
2021May 11Oct 22Apr 25Oct 22
2020May 13Sep 10May 13Oct 4
2019May 20Oct 12Apr 28Oct 25
2018Apr 28Sep 29Apr 22Oct 12
2017Apr 28Oct 10Apr 27Oct 10
2016May 15Oct 8May 15Nov 12
2015May 19Oct 16Apr 23Oct 17
2014Apr 26Oct 4Apr 18Oct 9
2013May 12Oct 20May 12Oct 23
2012Apr 23Sep 23Apr 17Oct 7
2011May 16Sep 15May 3Sep 15
2010May 8Oct 3Apr 9Oct 29
2009Apr 28Oct 9Apr 11Oct 9
2008Apr 29Oct 3Apr 29Oct 21
2007Apr 15Sep 12Apr 15Sep 15
2006May 21Oct 10Apr 25Oct 12
2005May 4Oct 7May 3Oct 25
2004May 15Oct 2May 2Oct 4
2003Apr 22Sep 29Apr 22Oct 1
2002no dataOct 7no dataOct 13
2001Apr 25Sep 25Apr 18Oct 6
2000May 19Sep 24Apr 21Sep 24
1999Apr 20Oct 2Mar 26Oct 6
1998Apr 17Oct 3Apr 10Nov 3
1997May 21Oct 14May 13Oct 22
1996May 13Sep 14Apr 28Oct 3
1995May 2Sep 20Apr 23Oct 16
1994May 6no dataMay 6no data
1993May 16Sep 18Apr 21Oct 2
1992Jun 21Sep 29Apr 27Sep 29
1991May 6Sep 20Apr 24Sep 27
1990May 11Oct 9May 11Oct 9
1989May 7Sep 23May 6Sep 26
1988May 17Oct 3Apr 28Oct 5
1987Apr 30Oct 3Apr 28Oct 3
1986May 21Sep 7May 21Oct 9
1985Apr 11Sep 24Apr 11Sep 26
1984May 2Sep 15May 2Sep 26
1983May 26Sep 23May 16Sep 23
1982May 1Sep 21Apr 27Sep 21
1981May 19Sep 17May 11Sep 28
1980May 15Sep 17May 15Sep 26
1979May 25Oct 2May 4Oct 7
1978May 3Sep 25May 2Oct 8
1977May 2Oct 2Apr 25Oct 16
1976May 18Sep 22May 7Sep 23
1975May 12Sep 13Apr 22Oct 2
1974May 13Sep 1May 6Sep 3
1973May 17Sep 18May 17Oct 17
1972May 3Sep 22Apr 25Sep 30
1971no dataSep 17no dataOct 12

"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.