Last Frost Day

Frost history / Whitestown, IN

Whitestown, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00129557, 1951 to 2025, measured from daily minimum temperatures.

Elevation 941 ft, 39.996, -86.354. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 12
EarliestApr 3 (1965)Sep 22 (1999)
LatestMay 27 (1961)Nov 11 (2016)
Trend1.2 days earlier per decade1.0 days later per decade
Years with data7373

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 27.

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: May 61958: Apr 301959: Apr 231960: Apr 111961: May 271962: Apr 201963: May 11964: Apr 91965: Apr 31966: May 101967: May 31968: May 61969: Apr 251970: May 31972: Apr 261973: May 171974: May 81975: Apr 221976: May 81977: Apr 301978: May 31979: May 11980: Apr 261981: Apr 221982: Apr 211983: Apr 241984: Apr 191985: Apr 111986: May 41987: Apr 91988: Apr 251989: May 71990: Apr 181991: Apr 221992: Apr 281993: Apr 221994: May 21995: Apr 141996: Apr 271997: Apr 261998: Apr 51999: Apr 252000: Apr 132001: Apr 182002: May 192003: Apr 232004: Apr 142005: May 32006: Apr 92007: Apr 152008: Apr 152009: Apr 122010: Apr 282011: Apr 212012: Apr 272013: Apr 252014: Apr 232015: Apr 242016: Apr 132017: Apr 72018: Apr 282019: Apr 212020: May 92022: Apr 272023: Apr 242024: Apr 222025: Apr 16

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Sep 291952: Oct 31953: Oct 71954: Oct 181955: Oct 221956: Oct 101957: Oct 111958: Oct 11959: Oct 121960: Oct 201961: Oct 271962: Oct 241963: Oct 291964: Oct 71965: Oct 51966: Oct 61967: Oct 121968: Oct 41969: Oct 181970: Sep 291971: Nov 41972: Oct 191973: Oct 291974: Sep 231975: Oct 31976: Oct 101977: Oct 121978: Oct 81979: Oct 101980: Oct 51981: Oct 31982: Oct 161983: Sep 231984: Nov 21985: Oct 21986: Oct 191987: Oct 31988: Oct 61989: Oct 41990: Oct 191991: Oct 161992: Oct 171993: Sep 301994: Oct 101995: Sep 231996: Oct 111997: Oct 151998: Oct 231999: Sep 222000: Oct 72001: Oct 72002: Oct 142003: Oct 22004: Oct 32005: Oct 292006: Oct 122007: Oct 282008: Oct 222009: Oct 112010: Oct 222011: Oct 222012: Oct 62013: Oct 222014: Oct 302015: Oct 172016: Nov 112017: Oct 252018: Oct 152019: Oct 122020: Oct 152022: Oct 172023: Oct 112025: Oct 23

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 23Apr 9Nov 9
2024Apr 22no dataMar 29no data
2023Apr 24Oct 11Apr 24Oct 31
2022Apr 27Oct 17Apr 2Nov 11
2020May 9Oct 15May 9Nov 17
2019Apr 21Oct 12Apr 1Nov 1
2018Apr 28Oct 15Apr 28Oct 20
2017Apr 7Oct 25Mar 22Nov 9
2016Apr 13Nov 11Apr 10Nov 11
2015Apr 24Oct 17Apr 4Oct 18
2014Apr 23Oct 30Apr 16Nov 1
2013Apr 25Oct 22Apr 3Oct 22
2012Apr 27Oct 6Apr 11Nov 1
2011Apr 21Oct 22Apr 1Oct 30
2010Apr 28Oct 22Mar 27Nov 3
2009Apr 12Oct 11Mar 30Nov 28
2008Apr 15Oct 22Apr 15Oct 28
2007Apr 15Oct 28Apr 10Nov 7
2006Apr 9Oct 12Apr 9Oct 25
2005May 3Oct 29Mar 24Nov 16
2004Apr 14Oct 3Apr 5Nov 13
2003Apr 23Oct 2Apr 23Oct 2
2002May 19Oct 14Apr 6Oct 14
2001Apr 18Oct 7Apr 18Oct 28
2000Apr 13Oct 7Apr 12Nov 15
1999Apr 25Sep 22Mar 28Nov 3
1998Apr 5Oct 23Mar 24Nov 4
1997Apr 26Oct 15Apr 18Oct 22
1996Apr 27Oct 11Apr 10Oct 31
1995Apr 14Sep 23Apr 5Sep 23
1994May 2Oct 10Apr 8Nov 22
1993Apr 22Sep 30Apr 4Nov 1
1992Apr 28Oct 17Apr 5Oct 17
1991Apr 22Oct 16Apr 2Oct 16
1990Apr 18Oct 19Apr 18Oct 26
1989May 7Oct 4Apr 13Oct 9
1988Apr 25Oct 6Mar 22Oct 12
1987Apr 9Oct 3Apr 4Oct 8
1986May 4Oct 19Apr 24Nov 3
1985Apr 11Oct 2Apr 11Oct 3
1984Apr 19Nov 2Apr 6Nov 3
1983Apr 24Sep 23Apr 19Nov 3
1982Apr 21Oct 16Apr 10Oct 16
1981Apr 22Oct 3Mar 26Oct 24
1980Apr 26Oct 5Apr 25Oct 13
1979May 1Oct 10Apr 10Oct 14
1978May 3Oct 8Apr 22Oct 24
1977Apr 30Oct 12Apr 9Oct 14
1976May 8Oct 10Apr 27Oct 18
1975Apr 22Oct 3Apr 14Nov 14
1974May 8Sep 23May 7Oct 2
1973May 17Oct 29Apr 14Nov 4
1972Apr 26Oct 19Apr 10Oct 19
1971no dataNov 4no dataNov 4
1970May 3Sep 29Apr 8Oct 17
1969Apr 25Oct 18Apr 1Oct 23
1968May 6Oct 4May 6Oct 5
1967May 3Oct 12Mar 22Oct 12
1966May 10Oct 6May 10Oct 30
1965Apr 3Oct 5Apr 3Oct 25
1964Apr 9Oct 7Apr 9Oct 10
1963May 1Oct 29May 1Oct 30
1962Apr 20Oct 24Apr 20Oct 24
1961May 27Oct 27Apr 16Oct 27
1960Apr 11Oct 20Apr 10Oct 20
1959Apr 23Oct 12Apr 13Oct 18
1958Apr 30Oct 1Apr 1Nov 8
1957May 6Oct 11Apr 15Oct 28
1956Apr 24Oct 10Apr 23Nov 9
1955May 9Oct 22Apr 8Oct 25
1954May 10Oct 18Apr 9Oct 20
1953Apr 21Oct 7Apr 19Oct 30
1952Apr 16Oct 3Apr 16Oct 7
1951Apr 23Sep 29Apr 23Nov 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 1991–2020 frost probabilities.