Last Frost Day

Frost history / Ft Wayne Intl Ap, IN

Ft Wayne Intl Ap, IN: frost dates by year

Last spring and first fall frost at NOAA station USW00014827, 1951 to 2024, measured from daily minimum temperatures.

Elevation 791 ft, 40.971, -85.206. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 26Oct 15
EarliestApr 1 (2019)Sep 23 (1967)
LatestMay 27 (1961)Nov 12 (2016)
Trend0.8 days earlier per decade1.3 days later per decade
Years with data7474

At 28°F (hard freeze) the median last spring date is Apr 11 and the median first fall date is Oct 30.

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 211954: May 101955: May 91956: Apr 241957: Apr 151958: Apr 301959: Apr 221960: Apr 111961: May 271962: Apr 201963: May 231964: Apr 111965: Apr 291966: May 101967: May 31968: May 61969: Apr 251970: Apr 111971: May 41972: Apr 261973: May 181974: May 71975: Apr 211976: May 81977: Apr 291978: May 31979: May 11980: May 81981: Apr 211982: Apr 211983: Apr 211984: Apr 201985: Apr 101986: May 31987: Apr 91988: Apr 251989: May 71990: Apr 181991: Apr 111992: Apr 281993: Apr 221994: Apr 81995: Apr 141996: May 131997: Apr 261998: Apr 281999: Apr 192000: Apr 132001: Apr 192002: May 192003: Apr 242004: May 42005: May 42006: Apr 262007: Apr 172008: Apr 302009: Apr 122010: Apr 182011: Apr 32012: Apr 272013: Apr 262014: Apr 172015: Apr 282016: Apr 142017: May 82018: Apr 292019: Apr 12020: May 122021: May 12022: Apr 272023: Apr 262024: Apr 25

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Sep 291952: Oct 31953: Oct 81954: Oct 191955: Oct 241956: Oct 101957: Oct 111958: Oct 21959: Oct 181960: Oct 201961: Sep 291962: Oct 241963: Oct 301964: Oct 71965: Oct 41966: Oct 21967: Sep 231968: Oct 51969: Oct 171970: Oct 161971: Nov 41972: Oct 181973: Oct 171974: Sep 231975: Oct 31976: Oct 161977: Oct 131978: Oct 91979: Oct 141980: Oct 131981: Oct 31982: Oct 161983: Oct 271984: Nov 21985: Oct 21986: Oct 191987: Oct 41988: Oct 61989: Sep 241990: Oct 261991: Sep 271992: Oct 171993: Sep 301994: Oct 271995: Sep 231996: Oct 111997: Oct 151998: Oct 221999: Oct 52000: Oct 292001: Oct 72002: Oct 142003: Oct 22004: Oct 32005: Oct 262006: Oct 122007: Oct 292008: Oct 192009: Oct 172010: Oct 192011: Oct 222012: Oct 82013: Oct 222014: Oct 192015: Oct 172016: Nov 122017: Oct 252018: Oct 162019: Oct 122020: Oct 162021: Oct 272022: Oct 82023: Oct 232024: Oct 16

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 16Mar 28Nov 2
2023Apr 26Oct 23Mar 30Oct 30
2022Apr 27Oct 8Apr 17Nov 14
2021May 1Oct 27Apr 22Nov 3
2020May 12Oct 16May 9Nov 2
2019Apr 1Oct 12Apr 1Nov 1
2018Apr 29Oct 16Apr 18Nov 10
2017May 8Oct 25Mar 23Nov 10
2016Apr 14Nov 12Apr 9Nov 12
2015Apr 28Oct 17Apr 4Oct 18
2014Apr 17Oct 19Apr 16Nov 1
2013Apr 26Oct 22Apr 21Nov 12
2012Apr 27Oct 8Apr 27Oct 8
2011Apr 3Oct 22Apr 3Oct 30
2010Apr 18Oct 19Mar 27Oct 22
2009Apr 12Oct 17Mar 21Nov 13
2008Apr 30Oct 19Apr 15Oct 22
2007Apr 17Oct 29Apr 15Nov 2
2006Apr 26Oct 12Apr 9Oct 15
2005May 4Oct 26May 4Oct 29
2004May 4Oct 3Apr 5Nov 13
2003Apr 24Oct 2Apr 23Nov 7
2002May 19Oct 14Apr 6Oct 14
2001Apr 19Oct 7Apr 17Oct 28
2000Apr 13Oct 29Apr 10Nov 5
1999Apr 19Oct 5Mar 28Nov 3
1998Apr 28Oct 22Mar 24Nov 4
1997Apr 26Oct 15Apr 18Oct 22
1996May 13Oct 11Apr 17Oct 31
1995Apr 14Sep 23Apr 5Nov 3
1994Apr 8Oct 27Apr 8Oct 27
1993Apr 22Sep 30Apr 4Nov 7
1992Apr 28Oct 17Apr 5Oct 19
1991Apr 11Sep 27Apr 11Oct 16
1990Apr 18Oct 26Apr 18Oct 26
1989May 7Sep 24May 7Oct 9
1988Apr 25Oct 6Apr 25Oct 13
1987Apr 9Oct 4Apr 9Oct 12
1986May 3Oct 19Apr 23Nov 3
1985Apr 10Oct 2Apr 9Nov 20
1984Apr 20Nov 2Apr 1Nov 7
1983Apr 21Oct 27Apr 20Nov 4
1982Apr 21Oct 16Apr 14Oct 17
1981Apr 21Oct 3Mar 25Oct 23
1980May 8Oct 13Mar 27Oct 29
1979May 1Oct 14Apr 10Oct 14
1978May 3Oct 9Mar 30Oct 24
1977Apr 29Oct 13Apr 9Oct 13
1976May 8Oct 16Apr 27Oct 18
1975Apr 21Oct 3Apr 14Nov 14
1974May 7Sep 23Apr 16Oct 3
1973May 18Oct 17Apr 14Nov 5
1972Apr 26Oct 18Apr 25Oct 19
1971May 4Nov 4Apr 10Nov 6
1970Apr 11Oct 16Apr 7Nov 16
1969Apr 25Oct 17Mar 31Oct 23
1968May 6Oct 5Apr 11Oct 30
1967May 3Sep 23Apr 25Oct 22
1966May 10Oct 2May 10Oct 6
1965Apr 29Oct 4Apr 3Oct 5
1964Apr 11Oct 7Apr 9Oct 7
1963May 23Oct 30May 1Oct 30
1962Apr 20Oct 24Apr 16Oct 25
1961May 27Sep 29Apr 11Oct 27
1960Apr 11Oct 20Apr 10Oct 20
1959Apr 22Oct 18Apr 13Nov 6
1958Apr 30Oct 2Apr 9Nov 7
1957Apr 15Oct 11Apr 15Nov 9
1956Apr 24Oct 10Apr 23Nov 9
1955May 9Oct 24Apr 8Nov 3
1954May 10Oct 19Apr 4Oct 31
1953Apr 21Oct 8Apr 21Nov 5
1952Apr 16Oct 3Apr 11Oct 7
1951Apr 23Sep 29Apr 20Nov 2

"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.