Last Frost Day

Frost history / Neillsville 3ESE, WI

Neillsville 3ESE, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00475808, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,080 ft, 44.538, -90.535. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 17Sep 25
EarliestApr 20 (2025)Sep 3 (1974)
LatestJun 21 (1992)Oct 20 (2025)
Trend0.9 days earlier per decade2.4 days later per decade
Years with data7372

At 28°F (hard freeze) the median last spring date is May 3 and the median first fall date is Oct 4.

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 15Apr 30May 15May 30Jun 14Jun 2919601970198019902000201020201951: May 111952: May 291953: May 131954: May 201955: May 81956: May 181957: May 161958: May 91959: May 161960: May 121961: May 191962: Apr 231963: May 231964: Jun 11965: May 291966: May 311967: May 221968: May 171969: May 141970: May 21971: May 271972: Jun 101973: May 171974: May 91975: May 171976: May 81977: May 91978: May 21979: May 251980: May 151981: May 191982: May 11983: May 261984: May 291985: Jun 31986: May 31987: Apr 301988: May 251989: May 71990: Jun 41991: May 31992: Jun 211993: Jun 11994: May 271995: Apr 251996: May 131997: May 211998: Jun 92000: May 192001: May 122002: May 222003: May 212004: May 162005: May 62006: May 222008: May 202009: May 182010: May 102011: May 172012: Apr 302013: May 132014: May 172015: May 202016: May 182017: May 72018: Apr 302019: Apr 292020: May 132021: May 292022: May 232023: May 32024: Apr 252025: Apr 20

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201951: Sep 281953: Sep 131954: Sep 231955: Sep 111956: Sep 181957: Sep 261958: Sep 281959: Sep 171960: Sep 281961: Sep 251962: Sep 201963: Sep 131964: Sep 151965: Sep 261966: Sep 261967: Sep 241968: Oct 41969: Sep 281970: Sep 291971: Sep 201972: Sep 221973: Sep 181974: Sep 31975: Sep 121976: Sep 101977: Oct 31978: Sep 281979: Sep 221980: Sep 171981: Sep 281982: Sep 221983: Sep 231984: Sep 161985: Sep 241986: Oct 61988: Sep 61989: Sep 121990: Sep 241991: Sep 191992: Sep 191993: Sep 111994: Sep 291995: Sep 221996: Oct 31997: Sep 211998: Sep 81999: Sep 212000: Sep 252001: Sep 252002: Sep 242003: Sep 212004: Sep 292005: Sep 292006: Oct 52007: Sep 152008: Oct 32010: Oct 32011: Oct 12012: Sep 192013: Oct 142014: Sep 132015: Oct 142016: Oct 82017: Oct 162018: Sep 292019: Oct 122020: Oct 32021: Oct 162022: Sep 282023: Oct 172024: Oct 72025: Oct 20

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

"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.