Last Frost Day

Frost history / Columbia 8 N, SD

Columbia 8 N, SD: frost dates by year

Last spring and first fall frost at NOAA station USC00391873, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,305 ft, 45.723, -98.303. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Sep 27
EarliestApr 17 (1998)Sep 5 (1965)
LatestMay 31 (1964)Oct 26 (1963)
Trend1.4 days earlier per decade3.2 days later per decade
Years with data6963

At 28°F (hard freeze) the median last spring date is May 3 and the median first fall date is Oct 7.

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 1419601970198019902000201020201951: May 101952: May 111953: May 131954: May 191955: May 101956: May 41957: May 91958: May 61959: May 221960: May 111961: May 261962: Apr 281963: May 221964: May 311965: May 281966: May 121968: May 201969: Apr 281970: May 21971: May 121972: May 71973: May 171974: May 61977: May 21979: May 121980: May 141981: May 131982: May 61983: May 241984: May 271985: May 61986: May 161987: Apr 211988: May 151989: May 61990: May 171991: May 51992: May 251993: May 191994: Apr 291995: Apr 251996: May 101997: May 191998: Apr 171999: Apr 222000: Apr 172001: Apr 232002: May 232003: May 192004: May 132005: May 152006: May 122007: Apr 172008: May 142009: May 162010: May 82011: May 22012: Apr 172013: May 122014: May 162015: May 192016: May 142017: May 22020: May 122021: May 122022: Apr 282023: May 22024: Apr 242025: Apr 30

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 241952: Sep 191953: Sep 211955: Sep 101956: Sep 61957: Sep 231958: Sep 301959: Sep 101960: Sep 271963: Oct 261964: Sep 111965: Sep 51968: Oct 31969: Oct 81970: Sep 131971: Sep 161972: Sep 291973: Sep 161975: Sep 121978: Oct 41979: Sep 141980: Oct 31981: Sep 171982: Sep 291983: Sep 201984: Sep 101985: Sep 231986: Oct 31987: Oct 11988: Oct 31989: Sep 111990: Sep 221991: Sep 191992: Sep 211993: Sep 221994: Sep 221995: Sep 191996: Sep 281997: Sep 191998: Sep 301999: Sep 302000: Sep 232002: Sep 252003: Sep 182004: Sep 272005: Oct 62006: Sep 202007: Oct 222008: Oct 142009: Oct 82010: Oct 192011: Oct 172012: Sep 222013: Oct 132014: Oct 42015: Oct 162016: Oct 62017: Oct 52020: Oct 152021: Oct 162023: Oct 72024: Oct 142025: Oct 14

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 30Oct 14Apr 29Oct 30
2024Apr 24Oct 14Apr 22Oct 14
2023May 2Oct 7Apr 24Oct 7
2022Apr 28no dataApr 27no data
2021May 12Oct 16May 11Oct 21
2020May 12Oct 15May 11Oct 15
2017May 2Oct 5Apr 29Oct 10
2016May 14Oct 6May 14Oct 20
2015May 19Oct 16Apr 24Oct 16
2014May 16Oct 4May 15Oct 4
2013May 12Oct 13May 12Oct 16
2012Apr 17Sep 22Apr 12Sep 22
2011May 2Oct 17May 1Oct 18
2010May 8Oct 19Apr 8Oct 28
2009May 16Oct 8Apr 11Oct 9
2008May 14Oct 14May 3Oct 16
2007Apr 17Oct 22Apr 14Oct 27
2006May 12Sep 20Apr 25Oct 11
2005May 15Oct 6May 15Oct 22
2004May 13Sep 27May 13Oct 1
2003May 19Sep 18Apr 27Sep 29
2002May 23Sep 25May 23Oct 8
2001Apr 23no dataApr 22no data
2000Apr 17Sep 23Apr 15Sep 23
1999Apr 22Sep 30Apr 22Oct 1
1998Apr 17Sep 30Apr 15Sep 30
1997May 19Sep 19May 14Oct 19
1996May 10Sep 28Apr 30Oct 9
1995Apr 25Sep 19Apr 21Sep 19
1994Apr 29Sep 22Apr 29Oct 23
1993May 19Sep 22May 1Oct 1
1992May 25Sep 21Apr 25Sep 27
1991May 5Sep 19Apr 19Oct 4
1990May 17Sep 22May 9Oct 6
1989May 6Sep 11May 5Sep 22
1988May 15Oct 3May 12Oct 3
1987Apr 21Oct 1Apr 2Oct 1
1986May 16Oct 3Apr 20Oct 11
1985May 6Sep 23Apr 26Sep 23
1984May 27Sep 10Apr 30Sep 25
1983May 24Sep 20May 13Sep 20
1982May 6Sep 29May 6Oct 19
1981May 13Sep 17May 10Oct 21
1980May 14Oct 3May 8Oct 12
1979May 12Sep 14May 12Oct 4
1978no dataOct 4no dataOct 7
1977May 2no dataApr 7no data
1975no dataSep 12no dataOct 1
1974May 6no dataMay 3no data
1973May 17Sep 16May 14Oct 28
1972May 7Sep 29May 7Oct 6
1971May 12Sep 16May 12Oct 11
1970May 2Sep 13May 2Oct 3
1969Apr 28Oct 8Apr 28Oct 8
1968May 20Oct 3May 5Oct 4
1966May 12no dataMay 9no data
1965May 28Sep 5May 28Sep 24
1964May 31Sep 11Apr 22Sep 11
1963May 22Oct 26May 22Oct 28
1962Apr 28no dataApr 18no data
1961May 26no dataMay 9no data
1960May 11Sep 27May 11Oct 19
1959May 22Sep 10May 15Sep 10
1958May 6Sep 30Apr 29Sep 30
1957May 9Sep 23Apr 14Oct 17
1956May 4Sep 6May 4Sep 29
1955May 10Sep 10May 8Sep 11
1954May 19no dataMay 17no data
1953May 13Sep 21May 13Oct 24
1952May 11Sep 19May 11Oct 2
1951May 10Sep 24May 10Sep 24

"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.