Frost history / Fond Du Lac 2 Sw, WI

Fond Du Lac 2 Sw, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00472842, 2010 to 2024, measured from daily minimum temperatures.

Elevation 772 ft, 43.767, -88.466. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 30	Oct 22
Earliest	Apr 25 (2021)	Oct 8 (2022)
Latest	May 15 (2016)	Oct 29 (2017)
Trend	6.7 days earlier per decade	2.8 days earlier per decade
Years with data	14	13

At 28°F (hard freeze) the median last spring date is Apr 23 and the median first fall date is Oct 28.

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)

First fall frost (32°F)

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

Year	Last spring 32°F	First fall 32°F	Last spring 28°F	First fall 28°F
2024	Apr 25	no data	Apr 25	no data
2023	May 1	Oct 22	Apr 24	Oct 30
2022	Apr 28	Oct 8	Apr 27	Oct 19
2021	Apr 25	Oct 24	Apr 22	Nov 3
2020	May 12	Oct 17	Apr 16	Oct 19
2019	Apr 28	Oct 14	Apr 28	Oct 29
2018	Apr 29	Oct 12	Apr 29	Oct 18
2017	May 8	Oct 29	Apr 1	Nov 1
2016	May 15	Oct 25	Apr 12	Nov 19
2015	Apr 28	Oct 17	Apr 24	Oct 17
2014	no data	Oct 22	no data	Oct 22
2013	May 13	no data	Apr 20	no data
2012	Apr 29	Oct 12	Apr 27	Oct 12
2011	May 4	Oct 23	Mar 31	Oct 28
2010	May 9	Oct 22	Apr 9	Oct 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.