Last Frost Day

Frost history / Berne Wwtp, IN

Berne Wwtp, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00120676, 1951 to 2025, measured from daily minimum temperatures.

Elevation 839 ft, 40.668, -84.930. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 18
EarliestApr 2 (2019)Sep 23 (1974)
LatestMay 27 (1961)Nov 20 (1985)
Trend1.9 days earlier per decade1.5 days later per decade
Years with data7272

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Nov 2.

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: May 11957: May 51958: Apr 301959: May 161960: Apr 191961: May 271962: Apr 201963: May 231964: Apr 91965: Apr 291966: May 101967: May 31968: May 61969: Apr 201970: May 61971: May 41972: Apr 261973: May 171974: May 71975: Apr 141976: May 81977: May 91978: May 11979: May 11980: Apr 171981: Apr 211982: Apr 211983: Apr 251984: Apr 201985: Apr 101986: Apr 231987: Apr 91988: Apr 251989: May 71990: Apr 181991: Apr 111992: Apr 61993: Apr 221994: Apr 81995: Apr 141996: May 131997: Apr 181998: Apr 51999: Apr 252000: Apr 162001: Apr 192002: May 192003: Apr 232005: May 42006: Apr 262008: Apr 162009: Apr 162010: Apr 172011: Apr 32012: Apr 272013: Apr 262014: Apr 172015: Apr 242016: Apr 142017: May 82019: Apr 22020: May 122021: May 12022: Apr 282023: Apr 262024: Apr 72025: Apr 17

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Sep 291952: Oct 31953: Oct 71954: Oct 191955: Oct 221956: Oct 101957: Oct 111958: Oct 21959: Oct 181960: Oct 201961: Oct 151962: Oct 241963: Oct 301964: Oct 71965: Oct 41966: Oct 61967: Oct 201968: Oct 51969: Oct 221970: Oct 161971: Nov 41972: Oct 151973: Nov 51974: Sep 231975: Oct 301976: Oct 171977: Oct 131978: Oct 171979: Oct 141980: Oct 61981: Oct 31982: Oct 171983: Oct 271984: Nov 21985: Nov 201986: Nov 31987: Oct 121988: Oct 61989: Oct 41990: Oct 261991: Oct 161992: Oct 181993: Sep 301994: Nov 71995: Sep 231996: Oct 111997: Oct 221998: Oct 221999: Oct 242001: Oct 72002: Oct 142005: Oct 262006: Oct 122007: Nov 22008: Oct 182009: Oct 172010: Oct 222011: Oct 222012: Oct 82013: Oct 222014: Oct 232015: Oct 182016: Nov 122017: Oct 262018: Oct 182019: Nov 12020: Oct 312021: Nov 32022: Oct 82023: Oct 232024: 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 17Oct 24Apr 9Nov 10
2024Apr 7Oct 17Mar 29Nov 29
2023Apr 26Oct 23Mar 31Oct 31
2022Apr 28Oct 8Apr 17Nov 12
2021May 1Nov 3Apr 22Nov 4
2020May 12Oct 31May 9Nov 2
2019Apr 2Nov 1Apr 2Nov 1
2018no dataOct 18no dataNov 10
2017May 8Oct 26Mar 24Nov 10
2016Apr 14Nov 12Apr 10Nov 12
2015Apr 24Oct 18Apr 5Nov 22
2014Apr 17Oct 23Apr 17Nov 2
2013Apr 26Oct 22Apr 5Oct 25
2012Apr 27Oct 8Apr 11Nov 4
2011Apr 3Oct 22Apr 3Nov 18
2010Apr 17Oct 22Mar 29Nov 2
2009Apr 16Oct 17Apr 12Nov 27
2008Apr 16Oct 18Mar 30Oct 29
2007no dataNov 2no dataNov 16
2006Apr 26Oct 12Mar 28Oct 25
2005May 4Oct 26Mar 19Nov 17
2003Apr 23no dataApr 23no data
2002May 19Oct 14Apr 6Nov 2
2001Apr 19Oct 7Apr 18Nov 12
2000Apr 16no dataApr 9no data
1999Apr 25Oct 24Mar 28Nov 4
1998Apr 5Oct 22Mar 24Nov 4
1997Apr 18Oct 22Apr 18Oct 23
1996May 13Oct 11Apr 10Oct 31
1995Apr 14Sep 23Apr 5Nov 3
1994Apr 8Nov 7Apr 8Nov 22
1993Apr 22Sep 30Apr 4Nov 6
1992Apr 6Oct 18Apr 5Oct 19
1991Apr 11Oct 16Apr 2Oct 16
1990Apr 18Oct 26Apr 18Oct 26
1989May 7Oct 4Apr 13Oct 9
1988Apr 25Oct 6Apr 19Oct 13
1987Apr 9Oct 12Apr 4Nov 11
1986Apr 23Nov 3Apr 23Nov 10
1985Apr 10Nov 20Apr 10Nov 20
1984Apr 20Nov 2Apr 1Nov 3
1983Apr 25Oct 27Apr 20Nov 4
1982Apr 21Oct 17Apr 14Oct 17
1981Apr 21Oct 3Apr 21Oct 23
1980Apr 17Oct 6Apr 16Oct 27
1979May 1Oct 14Apr 10Oct 26
1978May 1Oct 17Apr 22Oct 24
1977May 9Oct 13Apr 29Oct 17
1976May 8Oct 17Apr 28Oct 18
1975Apr 14Oct 30Apr 13Nov 14
1974May 7Sep 23May 7Oct 3
1973May 17Nov 5Apr 14Nov 5
1972Apr 26Oct 15Apr 9Oct 19
1971May 4Nov 4Apr 7Nov 7
1970May 6Oct 16Apr 11Nov 16
1969Apr 20Oct 22Mar 31Oct 23
1968May 6Oct 5Apr 6Oct 30
1967May 3Oct 20Apr 25Nov 4
1966May 10Oct 6May 10Oct 25
1965Apr 29Oct 4Apr 3Oct 5
1964Apr 9Oct 7Apr 5Oct 7
1963May 23Oct 30May 1Oct 30
1962Apr 20Oct 24Apr 20Oct 25
1961May 27Oct 15Apr 16Nov 4
1960Apr 19Oct 20Apr 10Oct 25
1959May 16Oct 18Apr 13Oct 28
1958Apr 30Oct 2Apr 1Oct 29
1957May 5Oct 11Apr 15Nov 9
1956May 1Oct 10Apr 23Nov 9
1955May 9Oct 22Apr 8Nov 4
1954May 10Oct 19Apr 9Nov 1
1953Apr 21Oct 7Apr 21Nov 5
1952Apr 16Oct 3Apr 11Oct 7
1951Apr 23Sep 29Mar 26Nov 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.