Last Frost Day

Frost history / Wisconsin Rapids Alexander Fld, WI

Wisconsin Rapids Alexander Fld, WI: frost dates by year

Last spring and first fall frost at NOAA station USW00004826, 1996 to 2024, measured from daily minimum temperatures.

Elevation 1,019 ft, 44.359, -89.837. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Oct 2
EarliestApr 16 (2007)Sep 14 (2007)
LatestMay 29 (2021)Oct 21 (2021)
Trend0.7 days later per decade5.0 days later per decade
Years with data2829

At 28°F (hard freeze) the median last spring date is Apr 28 and the median first fall date is Oct 16.

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 142000201020201997: May 211998: Apr 291999: Apr 252000: May 202001: Apr 192002: May 212003: May 222004: May 152005: May 42006: May 62007: Apr 162008: May 282009: May 172010: May 102011: May 272012: Apr 292013: May 242014: May 172015: May 202016: May 152017: May 82018: Apr 292019: Apr 282020: May 132021: May 292022: May 232023: May 32024: Apr 25

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 272000201020201996: Oct 21997: Oct 11998: Oct 21999: Sep 212000: Sep 252001: Sep 252002: Oct 72003: Sep 292004: Sep 292005: Oct 82006: Sep 212007: Sep 142008: Oct 32009: Sep 302010: Oct 32011: Sep 152012: Sep 232013: Oct 142014: Oct 52015: Oct 142016: Oct 82017: Oct 162018: Sep 292019: Oct 122020: Oct 22021: Oct 212022: Sep 282023: Oct 162024: Oct 7

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 25Oct 7Apr 24Oct 16
2023May 3Oct 16Apr 26Oct 29
2022May 23Sep 28Apr 27Oct 19
2021May 29Oct 21May 8Oct 26
2020May 13Oct 2May 12Oct 16
2019Apr 28Oct 12Apr 28Oct 25
2018Apr 29Sep 29Apr 29Oct 12
2017May 8Oct 16May 3Oct 28
2016May 15Oct 8May 15Nov 9
2015May 20Oct 14Apr 24Oct 16
2014May 17Oct 5Apr 23Oct 22
2013May 24Oct 14May 13Oct 19
2012Apr 29Sep 23Apr 27Oct 11
2011May 27Sep 15May 4Oct 21
2010May 10Oct 3May 9Oct 21
2009May 17Sep 30Apr 12Oct 9
2008May 28Oct 3Apr 29Oct 4
2007Apr 16Sep 14Apr 16Oct 25
2006May 6Sep 21May 6Oct 12
2005May 4Oct 8May 4Oct 26
2004May 15Sep 29May 3Oct 4
2003May 22Sep 29Apr 26Oct 1
2002May 21Oct 7May 18Oct 13
2001Apr 19Sep 25Apr 18Oct 6
2000May 20Sep 25Apr 22Oct 7
1999Apr 25Sep 21Apr 24Oct 3
1998Apr 29Oct 2Apr 28Oct 21
1997May 21Oct 1May 16Oct 21
1996no dataOct 2no dataOct 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 to 2020 frost probabilities.