Last Frost Day

Frost history / Crawfordsville 6 Se, IN

Crawfordsville 6 Se, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00121873, 1982 to 2025, measured from daily minimum temperatures.

Elevation 836 ft, 40.003, -86.801. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 29Oct 11
EarliestApr 9 (1987)Sep 20 (1991)
LatestJun 1 (2003)Oct 31 (2023)
Trend3.7 days earlier per decade4.4 days later per decade
Years with data3636

At 28°F (hard freeze) the median last spring date is Apr 16 and the median first fall date is Oct 17.

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 31Apr 15Apr 30May 15May 30Jun 1419902000201020201983: May 271987: Apr 91989: May 81990: Apr 191992: May 81993: May 201994: May 31995: May 41996: May 151997: May 231998: Apr 191999: Apr 252000: Apr 292001: May 142002: May 222003: Jun 12004: May 42006: Apr 102007: Apr 172008: Apr 152009: Apr 132010: Apr 292011: May 52012: Apr 272013: Apr 222014: Apr 242015: Apr 292016: Apr 132018: Apr 292019: Apr 222020: May 102021: May 132022: Apr 282023: Apr 272024: Apr 262025: Apr 13

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 1119902000201020201982: Oct 171988: Oct 61989: Sep 241990: Oct 191991: Sep 201992: Sep 291993: Sep 301994: Oct 101995: Sep 231996: Oct 41997: Oct 151998: Oct 141999: Sep 222000: Oct 72001: Oct 62003: Sep 202005: Oct 292006: Oct 122007: Oct 282008: Oct 222009: Oct 112010: Oct 42011: Oct 22012: Sep 252013: Oct 222014: Oct 222015: Oct 172017: Oct 262018: Oct 122019: Oct 122020: Oct 52021: Oct 272022: Oct 52023: Oct 312024: Oct 172025: 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 13Oct 23Apr 13Oct 24
2024Apr 26Oct 17Apr 7Oct 17
2023Apr 27Oct 31Apr 25Oct 31
2022Apr 28Oct 5Apr 18Oct 9
2021May 13Oct 27Apr 22Nov 3
2020May 10Oct 5May 10Oct 5
2019Apr 22Oct 12Apr 2Nov 1
2018Apr 29Oct 12Apr 29Oct 18
2017no dataOct 26no dataNov 9
2016Apr 13no dataApr 10no data
2015Apr 29Oct 17Apr 24Oct 17
2014Apr 24Oct 22Apr 16Oct 31
2013Apr 22Oct 22Apr 21Oct 22
2012Apr 27Sep 25Apr 12Oct 8
2011May 5Oct 2Apr 2Oct 30
2010Apr 29Oct 4Apr 28Oct 22
2009Apr 13Oct 11Apr 9Oct 18
2008Apr 15Oct 22Apr 15Oct 28
2007Apr 17Oct 28Apr 11Nov 2
2006Apr 10Oct 12Apr 10Oct 15
2005no dataOct 29no dataOct 29
2004May 4no dataApr 15no data
2003Jun 1Sep 20Apr 24Sep 30
2002May 22no dataApr 10no data
2001May 14Oct 6May 13Oct 7
2000Apr 29Oct 7Apr 13Oct 7
1999Apr 25Sep 22Mar 31Sep 22
1998Apr 19Oct 14Apr 6Oct 23
1997May 23Oct 15May 16Oct 15
1996May 15Oct 4Apr 18Oct 11
1995May 4Sep 23Apr 15Sep 23
1994May 3Oct 10May 2Oct 10
1993May 20Sep 30Apr 23Sep 30
1992May 8Sep 29Apr 28Oct 17
1991no dataSep 20no dataSep 20
1990Apr 19Oct 19Apr 19Oct 19
1989May 8Sep 24Apr 13Oct 9
1988no dataOct 6no dataOct 6
1987Apr 9no dataApr 9no data
1983May 27no dataApr 20no data
1982no dataOct 17no dataOct 21

"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.