Last Frost Day

Frost history / La Crosse Muni Ap, WI

La Crosse Muni Ap, WI: frost dates by year

Last spring and first fall frost at NOAA station USW00014920, 1951 to 2024, measured from daily minimum temperatures.

Elevation 652 ft, 43.879, -91.253. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 28Oct 12
EarliestMar 27 (1999)Sep 20 (1991)
LatestMay 29 (1965)Nov 9 (2016)
Trendlittle change (less than half a day per decade)0.6 days later per decade
Years with data7473

At 28°F (hard freeze) the median last spring date is Apr 13 and the median first fall date is Oct 25.

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 16Mar 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201951: Apr 221952: Apr 151953: May 131954: May 41955: Apr 71956: Apr 301957: Apr 151958: Apr 291959: Apr 211960: May 71961: May 21962: Apr 161963: May 11964: Apr 151965: May 291966: May 101967: May 121968: May 51969: Apr 291970: Apr 101971: May 271972: Apr 261973: May 41974: May 61975: Apr 221976: May 81977: Apr 81978: May 21979: Apr 101980: Apr 241981: May 101982: Apr 271983: May 151984: Apr 221985: Apr 111986: Apr 221987: Apr 51988: Apr 281989: May 61990: May 111991: Apr 211992: May 61993: Apr 211994: May 11995: Apr 251996: Apr 281997: May 131998: Apr 171999: Mar 272000: Apr 222001: Apr 182002: May 32003: Apr 222004: May 32005: May 42006: Apr 92007: Apr 152008: Apr 292009: Apr 152010: May 92011: May 42012: Apr 172013: May 32014: Apr 182015: Apr 262016: May 152017: Apr 282018: Apr 202019: Apr 282020: May 122021: May 112022: Apr 262023: Apr 262024: Apr 24

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 81952: Oct 31953: Oct 271954: Oct 181955: Oct 161956: Oct 101957: Oct 111958: Oct 291959: Oct 171960: Oct 191961: Sep 281962: Oct 241963: Nov 11964: Oct 91965: Oct 41966: Oct 121967: Sep 281968: Oct 41969: Oct 181970: Oct 151971: Oct 121972: Sep 301973: Nov 31974: Sep 221975: Oct 21976: Oct 61977: Oct 131978: Oct 281979: Oct 71980: Oct 121981: Oct 21982: Oct 211983: Sep 231984: Sep 261986: Oct 151987: Oct 21988: Oct 51989: Oct 31990: Oct 111991: Sep 201992: Oct 161993: Sep 301994: Nov 11995: Oct 161996: Oct 31997: Oct 201998: Oct 141999: Oct 32000: Oct 62001: Oct 62002: Oct 152003: Oct 12004: Oct 52005: Oct 202006: Oct 112007: Oct 252008: Oct 212009: Oct 92010: Oct 32011: Oct 212012: Sep 232013: Oct 212014: Oct 102015: Oct 172016: Nov 92017: Oct 292018: Oct 132019: Oct 242020: Oct 42021: Oct 232022: Oct 182023: Oct 292024: Oct 15

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
2024Apr 24Oct 15Apr 5Nov 12
2023Apr 26Oct 29Apr 18Oct 30
2022Apr 26Oct 18Apr 17Oct 18
2021May 11Oct 23Apr 25Nov 3
2020May 12Oct 4Apr 16Oct 19
2019Apr 28Oct 24Apr 15Oct 29
2018Apr 20Oct 13Apr 20Oct 21
2017Apr 28Oct 29Mar 22Oct 31
2016May 15Nov 9Apr 12Nov 19
2015Apr 26Oct 17Mar 28Nov 21
2014Apr 18Oct 10Apr 15Nov 1
2013May 3Oct 21Apr 24Oct 22
2012Apr 17Sep 23Apr 11Oct 7
2011May 4Oct 21Mar 31Oct 29
2010May 9Oct 3Apr 9Oct 29
2009Apr 15Oct 9Apr 9Oct 11
2008Apr 29Oct 21Apr 29Oct 21
2007Apr 15Oct 25Apr 10Nov 7
2006Apr 9Oct 11Apr 8Oct 12
2005May 4Oct 20May 3Nov 10
2004May 3Oct 5Apr 13Nov 7
2003Apr 22Oct 1Apr 9Oct 1
2002May 3Oct 15Apr 26Oct 16
2001Apr 18Oct 6Apr 4Oct 7
2000Apr 22Oct 6Apr 12Oct 8
1999Mar 27Oct 3Mar 26Oct 23
1998Apr 17Oct 14Mar 24Nov 4
1997May 13Oct 20Apr 17Oct 27
1996Apr 28Oct 3Apr 9Oct 30
1995Apr 25Oct 16Apr 5Oct 30
1994May 1Nov 1Apr 7Nov 1
1993Apr 21Sep 30Apr 21Oct 13
1992May 6Oct 16Apr 12Oct 17
1991Apr 21Sep 20Apr 1Oct 19
1990May 11Oct 11Apr 18Oct 18
1989May 6Oct 3May 6Oct 4
1988Apr 28Oct 5Apr 24Oct 6
1987Apr 5Oct 2Apr 4Oct 3
1986Apr 22Oct 15Apr 22Nov 1
1985Apr 11no dataApr 9no data
1984Apr 22Sep 26Apr 2Oct 28
1983May 15Sep 23Apr 20Nov 4
1982Apr 27Oct 21Apr 27Oct 21
1981May 10Oct 2Apr 15Oct 19
1980Apr 24Oct 12Apr 10Oct 12
1979Apr 10Oct 7Apr 10Oct 13
1978May 2Oct 28Apr 21Nov 1
1977Apr 8Oct 13Apr 8Nov 11
1976May 8Oct 6Apr 28Oct 8
1975Apr 22Oct 2Apr 21Oct 16
1974May 6Sep 22Apr 24Oct 1
1973May 4Nov 3Apr 28Nov 4
1972Apr 26Sep 30Apr 9Oct 17
1971May 27Oct 12May 3Nov 4
1970Apr 10Oct 15Apr 10Oct 16
1969Apr 29Oct 18Apr 6Oct 22
1968May 5Oct 4Apr 5Oct 25
1967May 12Sep 28May 3Sep 29
1966May 10Oct 12May 10Oct 24
1965May 29Oct 4Apr 13Oct 13
1964Apr 15Oct 9Apr 9Oct 10
1963May 1Nov 1Apr 10Nov 2
1962Apr 16Oct 24Apr 16Oct 25
1961May 2Sep 28Apr 16Nov 3
1960May 7Oct 19Apr 10Oct 20
1959Apr 21Oct 17Apr 13Nov 2
1958Apr 29Oct 29Apr 29Nov 2
1957Apr 15Oct 11Apr 15Oct 25
1956Apr 30Oct 10Apr 30Nov 9
1955Apr 7Oct 16Apr 7Nov 3
1954May 4Oct 18May 3Oct 30
1953May 13Oct 27Apr 20Oct 27
1952Apr 15Oct 3Apr 11Oct 16
1951Apr 22Oct 8Apr 19Oct 27

"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.