Last Frost Day

Frost history / Frankfort Disposal, IN

Frankfort Disposal, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00123082, 1951 to 2025, measured from daily minimum temperatures.

Elevation 824 ft, 40.299, -86.507. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 23Oct 13
EarliestMar 30 (1999)Sep 12 (1955)
LatestMay 27 (1961)Nov 12 (2016)
Trend2.1 days earlier per decade2.3 days later per decade
Years with data7174

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 25.

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 16Mar 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201951: Apr 231952: Apr 161953: Apr 201954: May 211955: Apr 81956: Apr 251958: May 71959: Apr 231960: Apr 111961: May 271962: Apr 201963: May 241964: Apr 151965: Apr 141966: May 101967: May 31968: May 61969: Apr 301970: May 31971: May 41972: Apr 261973: May 171974: May 71975: Apr 211976: May 121977: May 101978: May 31979: May 261980: Apr 261981: May 71983: Apr 201984: Apr 201985: Apr 101986: May 31987: Apr 91988: Apr 251989: May 71990: Apr 181991: Apr 111992: Apr 281993: Apr 221994: Apr 231995: Apr 51996: Apr 171997: Apr 291998: Apr 111999: Mar 302000: Apr 272001: Apr 262002: Apr 232003: Apr 132004: Apr 142005: May 42006: Apr 92007: Apr 172008: Apr 302009: Apr 122010: Apr 282011: Apr 212012: Apr 272013: Apr 212014: Apr 162015: Apr 252016: Apr 142017: Apr 82018: Apr 292019: Apr 52020: May 92021: Apr 212024: Apr 62025: Apr 16

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 81952: Oct 61953: Oct 71954: Oct 181955: Sep 121956: Oct 91958: Oct 11959: Sep 181960: Oct 201961: Oct 31962: Oct 241963: Sep 301964: Oct 61965: Oct 41966: Oct 21967: Oct 111968: Oct 41969: Oct 171970: Oct 161971: Nov 41972: Oct 151973: Oct 171974: Sep 231975: Oct 261976: Oct 141977: Oct 131978: Oct 81979: Oct 101980: Oct 51981: Oct 31982: Oct 171983: Sep 241984: Oct 11985: Oct 21986: Nov 21987: Oct 41988: Oct 61989: Oct 91990: Oct 231991: Oct 161992: Oct 171993: Sep 301994: Oct 111995: Sep 231996: Oct 111997: Oct 151998: Oct 241999: Oct 52000: Oct 72001: Oct 72002: Oct 142003: Oct 22004: Oct 32005: Oct 292006: Oct 122007: Oct 282008: Oct 222009: Oct 182010: Oct 192011: Oct 222012: Oct 82013: Oct 222014: Oct 302015: Oct 172016: Nov 122017: Oct 252018: Oct 162019: Oct 182020: Oct 162021: Nov 22022: Oct 32023: Oct 312024: Oct 172025: Oct 24

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
2025Apr 16Oct 24Apr 9Nov 10
2024Apr 6Oct 17Mar 28Nov 26
2023no dataOct 31no dataOct 31
2022no dataOct 3no dataOct 3
2021Apr 21Nov 2Apr 21Nov 3
2020May 9Oct 16May 9Oct 31
2019Apr 5Oct 18Apr 1Nov 1
2018Apr 29Oct 16Apr 20Oct 21
2017Apr 8Oct 25Mar 23Oct 25
2016Apr 14Nov 12Apr 10Nov 12
2015Apr 25Oct 17Apr 25Nov 8
2014Apr 16Oct 30Apr 16Nov 1
2013Apr 21Oct 22Apr 4Oct 25
2012Apr 27Oct 8Apr 12Oct 8
2011Apr 21Oct 22Apr 1Oct 30
2010Apr 28Oct 19Mar 27Nov 1
2009Apr 12Oct 18Apr 4Nov 1
2008Apr 30Oct 22Apr 15Oct 22
2007Apr 17Oct 28Apr 10Nov 7
2006Apr 9Oct 12Apr 9Oct 25
2005May 4Oct 29Mar 24Nov 11
2004Apr 14Oct 3Apr 5Nov 9
2003Apr 13Oct 2Apr 6Nov 7
2002Apr 23Oct 14Apr 6Nov 1
2001Apr 26Oct 7Apr 17Oct 28
2000Apr 27Oct 7Apr 12Nov 13
1999Mar 30Oct 5Mar 27Nov 3
1998Apr 11Oct 24Mar 24Nov 4
1997Apr 29Oct 15Apr 14Oct 22
1996Apr 17Oct 11Apr 17Oct 31
1995Apr 5Sep 23Apr 5Sep 23
1994Apr 23Oct 11Apr 8Oct 27
1993Apr 22Sep 30Apr 5Nov 1
1992Apr 28Oct 17Apr 5Oct 19
1991Apr 11Oct 16Apr 2Oct 16
1990Apr 18Oct 23Apr 18Oct 26
1989May 7Oct 9Apr 13Oct 9
1988Apr 25Oct 6Apr 19Oct 13
1987Apr 9Oct 4Apr 9Oct 12
1986May 3Nov 2Apr 23Nov 3
1985Apr 10Oct 2Apr 10Oct 2
1984Apr 20Oct 1Apr 1Nov 2
1983Apr 20Sep 24Apr 20Nov 4
1982no dataOct 17no dataOct 17
1981May 7Oct 3Mar 25Oct 23
1980Apr 26Oct 5Mar 27Oct 29
1979May 26Oct 10Apr 10Oct 14
1978May 3Oct 8May 2Oct 9
1977May 10Oct 13Apr 29Oct 13
1976May 12Oct 14May 8Oct 17
1975Apr 21Oct 26Apr 15Oct 30
1974May 7Sep 23May 7Oct 20
1973May 17Oct 17Apr 14Nov 4
1972Apr 26Oct 15Apr 26Oct 19
1971May 4Nov 4Apr 30Nov 4
1970May 3Oct 16Apr 7Oct 16
1969Apr 30Oct 17Mar 31Oct 23
1968May 6Oct 4May 6Oct 5
1967May 3Oct 11Mar 22Oct 12
1966May 10Oct 2May 10Oct 6
1965Apr 14Oct 4Apr 3Oct 5
1964Apr 15Oct 6Apr 9Oct 9
1963May 24Sep 30Apr 15Oct 30
1962Apr 20Oct 24Apr 20Oct 24
1961May 27Oct 3Apr 16Oct 27
1960Apr 11Oct 20Apr 10Oct 20
1959Apr 23Sep 18Apr 4Oct 18
1958May 7Oct 1Apr 1Oct 2
1956Apr 25Oct 9Apr 23Oct 10
1955Apr 8Sep 12Apr 8Oct 24
1954May 21Oct 18Apr 9Oct 20
1953Apr 20Oct 7Apr 19Oct 29
1952Apr 16Oct 6Apr 16Oct 6
1951Apr 23Oct 8Apr 22Nov 1

"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.