Last Frost Day

Frost history / Seymour 2 N, IN

Seymour 2 N, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00127935, 1951 to 2024, measured from daily minimum temperatures.

Elevation 570 ft, 38.982, -85.899. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 20Oct 17
EarliestMar 30 (1999)Sep 22 (1983)
LatestMay 27 (1961)Nov 4 (1971)
Trend2.5 days earlier per decade1.0 days later per decade
Years with data6364

At 28°F (hard freeze) the median last spring date is Apr 8 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)

Mar 16Mar 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201951: Apr 241952: Apr 171953: Apr 211954: May 111955: Apr 101956: Apr 231957: May 61958: Apr 121959: Apr 231960: Apr 111961: May 271962: Apr 201963: May 21964: Apr 101965: Apr 41966: May 111967: Apr 261968: May 61969: Apr 11970: Apr 81971: May 41972: Apr 261973: Apr 141974: May 81975: Apr 221976: May 51977: Apr 291978: Apr 231979: Apr 301980: Apr 251981: Apr 221982: Apr 231983: Apr 251984: Apr 201985: Apr 111986: Apr 241987: Apr 51988: Apr 211989: Apr 151990: Apr 191991: Apr 31992: Apr 71993: Apr 231994: May 21995: Apr 61996: Apr 241997: Apr 191998: Apr 71999: Mar 302000: Apr 122001: Apr 192002: Apr 72003: Apr 242004: Apr 142005: May 42006: Apr 102007: Apr 112008: Apr 162009: Apr 102010: Mar 312011: Apr 12012: Apr 132022: Apr 11

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 291952: Oct 71953: Oct 81954: Oct 181955: Oct 251956: Oct 271957: Oct 121958: Oct 301959: Oct 181960: Oct 201961: Oct 151962: Oct 241963: Oct 291964: Oct 61965: Sep 251966: Oct 21967: Oct 111968: Oct 41969: Oct 181970: Oct 171971: Nov 41972: Oct 191973: Oct 171974: Sep 231975: Oct 31976: Oct 181977: Oct 101978: Oct 81979: Oct 101980: Oct 51981: Oct 31982: Oct 171983: Sep 221984: Nov 31985: Oct 21986: Oct 151987: Oct 41988: Oct 81989: Oct 91990: Oct 191991: Oct 161992: Oct 171993: Sep 301994: Oct 251995: Sep 231996: Oct 191997: Oct 221998: Oct 221999: Oct 192000: Oct 82001: Oct 72002: Oct 142003: Oct 22004: Oct 172005: Oct 262006: Oct 122007: Oct 292008: Oct 202009: Oct 182010: Oct 222011: Oct 222021: Nov 32023: Oct 312024: Oct 18

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
2024no dataOct 18no dataNov 30
2023no dataOct 31no dataOct 31
2022Apr 11no dataApr 3no data
2021no dataNov 3no dataNov 3
2012Apr 13no dataApr 12no data
2011Apr 1Oct 22Apr 1Oct 30
2010Mar 31Oct 22Mar 28Oct 30
2009Apr 10Oct 18Mar 31Oct 18
2008Apr 16Oct 20Mar 25Oct 28
2007Apr 11Oct 29Apr 11Oct 30
2006Apr 10Oct 12Mar 28Oct 15
2005May 4Oct 26Mar 22Oct 29
2004Apr 14Oct 17Apr 5Nov 9
2003Apr 24Oct 2Apr 1Nov 8
2002Apr 7Oct 14Apr 6Nov 2
2001Apr 19Oct 7Apr 19Oct 28
2000Apr 12Oct 8Apr 10Nov 16
1999Mar 30Oct 19Mar 28Oct 22
1998Apr 7Oct 22Mar 25Nov 5
1997Apr 19Oct 22Apr 18Oct 22
1996Apr 24Oct 19Apr 11Nov 2
1995Apr 6Sep 23Apr 6Nov 4
1994May 2Oct 25Apr 7Oct 28
1993Apr 23Sep 30Apr 22Oct 31
1992Apr 7Oct 17Apr 6Oct 19
1991Apr 3Oct 16Apr 1Oct 16
1990Apr 19Oct 19Apr 19Oct 26
1989Apr 15Oct 9Apr 12Nov 1
1988Apr 21Oct 8Apr 20Oct 12
1987Apr 5Oct 4Apr 4Oct 22
1986Apr 24Oct 15Apr 23Nov 10
1985Apr 11Oct 2Apr 11Nov 21
1984Apr 20Nov 3Mar 13Nov 6
1983Apr 25Sep 22Apr 21Nov 4
1982Apr 23Oct 17Apr 8Oct 22
1981Apr 22Oct 3Mar 26Oct 3
1980Apr 25Oct 5Mar 28Oct 6
1979Apr 30Oct 10Apr 7Oct 13
1978Apr 23Oct 8Apr 22Oct 9
1977Apr 29Oct 10Apr 9Oct 13
1976May 5Oct 18Apr 14Oct 18
1975Apr 22Oct 3Apr 13Nov 15
1974May 8Sep 23Apr 16Oct 3
1973Apr 14Oct 17Apr 14Nov 6
1972Apr 26Oct 19Apr 10Oct 20
1971May 4Nov 4Apr 8Nov 7
1970Apr 8Oct 17Apr 7Nov 16
1969Apr 1Oct 18Apr 1Oct 23
1968May 6Oct 4Apr 7Oct 5
1967Apr 26Oct 11Mar 22Oct 11
1966May 11Oct 2May 10Oct 26
1965Apr 4Sep 25Apr 4Oct 25
1964Apr 10Oct 6Apr 9Oct 10
1963May 2Oct 29May 1Oct 30
1962Apr 20Oct 24Apr 16Oct 24
1961May 27Oct 15Apr 12Oct 27
1960Apr 11Oct 20Apr 10Oct 21
1959Apr 23Oct 18Mar 29Oct 28
1958Apr 12Oct 30Apr 1Nov 7
1957May 6Oct 12Apr 15Oct 27
1956Apr 23Oct 27Apr 23Nov 9
1955Apr 10Oct 25Apr 8Oct 25
1954May 11Oct 18Apr 4Oct 31
1953Apr 21Oct 8Apr 20Oct 30
1952Apr 17Oct 7Apr 8Oct 7
1951Apr 24Sep 29Apr 17Nov 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.