Last Frost Day

Frost history / Dodge, WI

Dodge, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00472165, 1960 to 2014, measured from daily minimum temperatures.

Elevation 685 ft, 44.133, -91.551. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 16Sep 23
EarliestApr 16 (2007)Aug 14 (1964)
LatestJun 16 (1964)Oct 13 (2013)
Trend2.7 days earlier per decade1.2 days later per decade
Years with data4140

At 28°F (hard freeze) the median last spring date is May 4 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 291960197019801990200020101960: May 121961: May 261962: Apr 231963: May 231964: Jun 161965: May 291966: May 141967: May 221972: May 311973: May 161974: May 71975: May 161976: May 181978: May 111979: May 251980: May 111981: May 201982: May 11983: May 261984: May 311985: Jun 31986: May 221987: May 61988: May 251989: May 61990: May 111991: May 51992: May 241993: Jun 12003: Apr 232004: May 162005: May 42006: May 222007: Apr 162008: May 122009: May 172010: May 92011: May 42012: Apr 272013: May 132014: May 17

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 271960197019801990200020101960: Oct 71961: Sep 281962: Sep 201963: Oct 121964: Aug 141965: Sep 271966: Sep 261968: Sep 111969: Sep 281970: Sep 281971: Oct 71973: Sep 181974: Sep 31975: Sep 131978: Oct 71979: Sep 221980: Sep 171981: Sep 281982: Sep 211983: Sep 231984: Sep 151985: Sep 121986: Aug 281987: Sep 251988: Aug 291989: Sep 231990: Sep 241991: Sep 191992: Sep 232003: Sep 292004: Oct 22005: Oct 82006: Sep 202007: Sep 152008: Oct 42009: Sep 302010: Oct 32011: Sep 152012: Sep 232013: Oct 13

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
2014May 17no dataApr 18no data
2013May 13Oct 13Apr 24Oct 22
2012Apr 27Sep 23Apr 17Sep 23
2011May 4Sep 15May 4Oct 21
2010May 9Oct 3May 9Oct 22
2009May 17Sep 30Apr 16Oct 10
2008May 12Oct 4Apr 29Oct 4
2007Apr 16Sep 15Apr 16Oct 23
2006May 22Sep 20May 7Oct 12
2005May 4Oct 8May 4Oct 25
2004May 16Oct 2May 3Oct 2
2003Apr 23Sep 29Apr 23Sep 29
1993Jun 1no dataMay 17no data
1992May 24Sep 23May 6Sep 29
1991May 5Sep 19Apr 25Sep 20
1990May 11Sep 24May 11Oct 10
1989May 6Sep 23May 6Sep 23
1988May 25Aug 29Apr 28Oct 5
1987May 6Sep 25May 4Oct 3
1986May 22Aug 28May 20Aug 28
1985Jun 3Sep 12Apr 16Sep 13
1984May 31Sep 15May 3Sep 15
1983May 26Sep 23May 26Sep 23
1982May 1Sep 21Apr 28Sep 21
1981May 20Sep 28May 19Sep 28
1980May 11Sep 17May 8Oct 5
1979May 25Sep 22May 5Oct 7
1978May 11Oct 7May 2Oct 8
1976May 18no dataMay 8no data
1975May 16Sep 13Apr 22Oct 2
1974May 7Sep 3May 7Sep 23
1973May 16Sep 18May 15Nov 4
1972May 31no dataApr 26no data
1971no dataOct 7no dataOct 12
1970no dataSep 28no dataSep 30
1969no dataSep 28no dataOct 18
1968no dataSep 11no dataOct 4
1967May 22no dataMay 12no data
1966May 14Sep 26May 10Oct 6
1965May 29Sep 27May 29Oct 13
1964Jun 16Aug 14Jun 1Sep 25
1963May 23Oct 12May 23Oct 28
1962Apr 23Sep 20Apr 16Oct 24
1961May 26Sep 28May 2Sep 28
1960May 12Oct 7Apr 18Oct 18

"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.