Last Frost Day

Frost history / Menomonie, WI

Menomonie, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00475335, 1957 to 2025, measured from daily minimum temperatures.

Elevation 780 ft, 44.874, -91.936. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Sep 30
EarliestApr 15 (1964)Sep 3 (1974)
LatestJun 1 (1993)Oct 22 (2021)
Trend1.1 days earlier per decade2.1 days later per decade
Years with data6769

At 28°F (hard freeze) the median last spring date is Apr 27 and the median first fall date is Oct 11.

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 1419601970198019902000201020201958: May 91959: May 151960: May 121961: May 261962: Apr 231963: May 231964: Apr 151965: May 291966: May 311967: May 221968: May 101969: May 121970: May 61971: May 271972: Apr 271973: May 171974: May 131975: Apr 221976: May 181977: Apr 291978: May 61979: May 251980: May 151981: May 191982: May 201983: May 261984: May 291985: Apr 281986: May 31987: May 41988: May 171989: May 91990: May 111991: May 31992: May 61993: Jun 11994: May 101995: May 171996: May 131997: May 211998: Apr 281999: Apr 252000: May 192001: Apr 182002: May 202003: May 32004: May 152005: May 162006: May 62007: Apr 182008: May 132009: May 172010: May 102011: May 52012: Apr 282013: May 252014: May 172015: May 202016: May 162017: Apr 282018: Apr 302019: May 112020: May 142021: May 122023: May 42024: Apr 262025: May 1

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201957: Sep 271958: Oct 11959: Sep 171960: Oct 31961: Sep 251962: Sep 201963: Sep 131964: Sep 281965: Sep 261966: Sep 261967: Sep 281968: Oct 41969: Sep 281970: Sep 281971: Oct 71972: Sep 301973: Sep 201974: Sep 31975: Oct 21976: Sep 281977: Oct 31978: Oct 81979: Oct 71980: Sep 261981: Sep 281982: Sep 211983: Sep 231984: Sep 261985: Sep 251986: Oct 61987: Oct 31988: Oct 31989: Sep 241990: Sep 301991: Sep 201992: Sep 291993: Sep 111994: Sep 301995: Sep 231996: Oct 31997: Oct 151998: Oct 141999: Sep 212000: Sep 242001: Sep 252002: Oct 72003: Sep 292004: Oct 22005: Oct 82006: Oct 102007: Sep 152008: Oct 42009: Sep 302010: Oct 32011: Sep 152012: Sep 232013: Oct 172014: Oct 92015: Oct 162016: Oct 92017: Oct 112018: Sep 292019: Oct 142020: Oct 32021: Oct 222022: Sep 292023: Oct 192024: Oct 152025: 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 1Oct 8Apr 21Oct 24
2024Apr 26Oct 15Apr 24Oct 16
2023May 4Oct 19Apr 27Oct 29
2022no dataSep 29no dataOct 18
2021May 12Oct 22May 11Oct 24
2020May 14Oct 3May 9Oct 4
2019May 11Oct 14Apr 28Oct 25
2018Apr 30Sep 29Apr 30Oct 13
2017Apr 28Oct 11Apr 12Oct 29
2016May 16Oct 9May 15Nov 12
2015May 20Oct 16Apr 24Oct 17
2014May 17Oct 9Apr 19Oct 11
2013May 25Oct 17May 13Oct 22
2012Apr 28Sep 23Apr 18Oct 7
2011May 5Sep 15May 4Oct 21
2010May 10Oct 3May 9Oct 22
2009May 17Sep 30Apr 16Oct 10
2008May 13Oct 4Apr 29Oct 18
2007Apr 18Sep 15Apr 15Oct 25
2006May 6Oct 10Apr 9Oct 12
2005May 16Oct 8May 4Oct 27
2004May 15Oct 2May 3Oct 5
2003May 3Sep 29Apr 10Oct 2
2002May 20Oct 7May 3Oct 16
2001Apr 18Sep 25Apr 18Oct 7
2000May 19Sep 24Apr 12Oct 8
1999Apr 25Sep 21Mar 30Oct 4
1998Apr 28Oct 14Apr 10Oct 22
1997May 21Oct 15May 13Oct 27
1996May 13Oct 3May 13Oct 3
1995May 17Sep 23Apr 23Sep 23
1994May 10Sep 30May 1Oct 10
1993Jun 1Sep 11Apr 26Sep 19
1992May 6Sep 29May 6Sep 29
1991May 3Sep 20Apr 22Sep 27
1990May 11Sep 30May 2Oct 10
1989May 9Sep 24May 6Oct 3
1988May 17Oct 3Apr 28Oct 5
1987May 4Oct 3Apr 6Oct 3
1986May 3Oct 6Apr 22Oct 15
1985Apr 28Sep 25Apr 9Oct 2
1984May 29Sep 26Apr 18Sep 30
1983May 26Sep 23May 8Oct 13
1982May 20Sep 21Apr 27Oct 21
1981May 19Sep 28Apr 15Oct 2
1980May 15Sep 26Apr 24Oct 5
1979May 25Oct 7May 1Oct 7
1978May 6Oct 8May 2Oct 14
1977Apr 29Oct 3Apr 8Oct 16
1976May 18Sep 28Apr 26Sep 28
1975Apr 22Oct 2Apr 21Oct 2
1974May 13Sep 3May 6Oct 1
1973May 17Sep 20May 4Nov 4
1972Apr 27Sep 30Apr 26Sep 30
1971May 27Oct 7May 3Nov 1
1970May 6Sep 28Apr 22Oct 16
1969May 12Sep 28May 12Oct 22
1968May 10Oct 4May 5Oct 5
1967May 22Sep 28May 12Sep 29
1966May 31Sep 26May 10Oct 12
1965May 29Sep 26Apr 28Sep 26
1964Apr 15Sep 28Apr 15Sep 28
1963May 23Sep 13May 1Oct 29
1962Apr 23Sep 20Apr 16Oct 24
1961May 26Sep 25May 4Sep 28
1960May 12Oct 3Apr 18Oct 18
1959May 15Sep 17Apr 21Oct 17
1958May 9Oct 1Apr 29Oct 5
1957no dataSep 27no dataSep 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 1991–2020 frost probabilities.