Last Frost Day

Frost history / Rice Lake, WI

Rice Lake, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00477132, 1952 to 2025, measured from daily minimum temperatures.

Elevation 1,103 ft, 45.417, -91.772. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 16Sep 27
EarliestApr 15 (1985)Sep 1 (1974)
LatestJun 21 (1992)Oct 18 (1954)
Trend1.7 days earlier per decade1.2 days later per decade
Years with data6769

At 28°F (hard freeze) the median last spring date is May 2 and the median first fall date is Oct 5.

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 2919601970198019902000201020201952: May 111953: May 131954: May 91955: May 81956: May 161957: May 51958: May 231959: May 241960: May 121961: Jun 31962: May 21963: May 231964: May 311965: May 291966: May 311967: May 221968: May 171969: Jun 131970: May 261971: May 271972: Jun 111973: May 171974: May 131975: May 161976: May 181977: May 101978: Jun 81980: May 151981: May 191982: Apr 271983: May 261984: May 21985: Apr 151987: Apr 281988: May 171989: May 71990: May 111991: May 31992: Jun 211993: May 161994: May 61995: Apr 251996: May 141997: May 211998: Apr 291999: Apr 252000: May 192002: May 202003: May 22004: May 182006: May 62007: May 172008: May 192009: May 182010: May 92011: May 162012: Apr 282013: May 242014: May 172015: May 202016: May 152017: Apr 292018: Apr 272019: May 32020: May 132021: May 122023: May 3

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201952: Oct 31953: Oct 71954: Oct 181955: Oct 21956: Sep 201957: Sep 261958: Oct 11959: Sep 171960: Sep 301961: Sep 251962: Sep 201964: Sep 121965: Sep 261966: Sep 251967: Sep 241968: Oct 41969: Sep 91970: Sep 271971: Sep 171972: Sep 221973: Sep 201974: Sep 11975: Sep 131976: Sep 111977: Oct 21978: Sep 281979: Oct 71981: Sep 171982: Sep 211983: Sep 231984: Sep 261985: Sep 241986: Oct 61988: Oct 31989: Sep 231990: Oct 91991: Sep 201992: Sep 291993: Sep 301994: Oct 101996: Oct 31997: Oct 141998: Oct 21999: Sep 212000: Sep 242001: Sep 252002: Sep 242003: Sep 292004: Sep 292005: Oct 72006: Sep 202007: Sep 152008: Oct 42009: Sep 302010: Sep 262011: Sep 152012: Sep 182013: Oct 142014: Oct 42015: Oct 142016: Oct 82017: Oct 102018: Sep 292019: Oct 132020: Sep 182021: Sep 252022: Sep 282023: Oct 172025: 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
2025no dataOct 8no dataOct 8
2023May 3Oct 17May 3Oct 29
2022no dataSep 28no dataSep 28
2021May 12Sep 25May 11Oct 22
2020May 13Sep 18May 13Oct 4
2019May 3Oct 13May 3Oct 25
2018Apr 27Sep 29Apr 22Oct 13
2017Apr 29Oct 10Apr 29Oct 29
2016May 15Oct 8May 15Oct 9
2015May 20Oct 14Apr 24Oct 17
2014May 17Oct 4Apr 26Oct 10
2013May 24Oct 14Apr 25Oct 20
2012Apr 28Sep 18Apr 27Sep 23
2011May 16Sep 15May 4Oct 1
2010May 9Sep 26May 9Oct 3
2009May 18Sep 30Apr 12Sep 30
2008May 19Oct 4Apr 29Oct 4
2007May 17Sep 15Apr 17Sep 15
2006May 6Sep 20Apr 9Oct 10
2005no dataOct 7no dataOct 27
2004May 18Sep 29May 4Oct 5
2003May 2Sep 29Apr 22Sep 29
2002May 20Sep 24May 20Oct 7
2001no dataSep 25no dataOct 7
2000May 19Sep 24Apr 21Oct 4
1999Apr 25Sep 21Mar 30Oct 4
1998Apr 29Oct 2Apr 10Oct 22
1997May 21Oct 14May 13Oct 22
1996May 14Oct 3May 14Oct 3
1995Apr 25no dataApr 14no data
1994May 6Oct 10Apr 30Oct 10
1993May 16Sep 30Apr 26Oct 2
1992Jun 21Sep 29Apr 27Oct 13
1991May 3Sep 20Apr 21Oct 7
1990May 11Oct 9May 2Oct 10
1989May 7Sep 23May 6Oct 3
1988May 17Oct 3Apr 24Oct 5
1987Apr 28no dataApr 5no data
1986no dataOct 6no dataOct 6
1985Apr 15Sep 24Apr 9Oct 2
1984May 2Sep 26Apr 7Sep 26
1983May 26Sep 23May 8Oct 13
1982Apr 27Sep 21Apr 27Oct 21
1981May 19Sep 17May 12Sep 18
1980May 15no dataApr 24no data
1979no dataOct 7no dataOct 7
1978Jun 8Sep 28May 2Oct 8
1977May 10Oct 2Apr 29Oct 13
1976May 18Sep 11May 18Sep 24
1975May 16Sep 13Apr 22Oct 2
1974May 13Sep 1May 13Sep 3
1973May 17Sep 20May 17Sep 20
1972Jun 11Sep 22Jun 10Sep 30
1971May 27Sep 17May 21Oct 12
1970May 26Sep 27May 6Sep 28
1969Jun 13Sep 9May 13Sep 28
1968May 17Oct 4May 5Oct 5
1967May 22Sep 24May 20Sep 28
1966May 31Sep 25May 10Sep 26
1965May 29Sep 26May 29Sep 26
1964May 31Sep 12Apr 20Sep 15
1963May 23no dataMay 23no data
1962May 2Sep 20Apr 20Oct 24
1961Jun 3Sep 25May 26Sep 28
1960May 12Sep 30May 12Sep 30
1959May 24Sep 17May 15Sep 17
1958May 23Oct 1May 9Oct 1
1957May 5Sep 26Apr 15Sep 27
1956May 16Sep 20Apr 30Oct 10
1955May 8Oct 2Apr 7Nov 2
1954May 9Oct 18May 6Oct 18
1953May 13Oct 7May 13Oct 29
1952May 11Oct 3Apr 15Oct 3

"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.