Last Frost Day

Frost history / Faith, SD

Faith, SD: frost dates by year

Last spring and first fall frost at NOAA station USC00392852, 1951 to 2011, measured from daily minimum temperatures.

Elevation 2,592 ft, 45.020, -102.037. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 8Sep 27
EarliestApr 15 (1962)Sep 4 (1962)
LatestJun 13 (1969)Oct 27 (1963)
Trend1.3 days earlier per decade2.6 days later per decade
Years with data5652

At 28°F (hard freeze) the median last spring date is Apr 28 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 14Jun 291960197019801990200020101951: Jun 31952: May 281954: May 91955: May 111956: May 141957: May 231958: Apr 291960: May 71961: May 41962: Apr 151963: May 221964: Apr 191965: May 271966: May 131967: May 121968: May 211969: Jun 131970: May 11972: May 61975: May 11976: May 61977: Apr 241978: Apr 251979: May 241980: May 81981: May 101982: May 81983: May 161984: May 261985: Apr 271986: May 11987: May 221988: Apr 271989: May 61990: May 101991: May 61992: Apr 271993: May 11994: Apr 291995: Apr 291996: May 111997: May 201998: May 71999: Apr 232000: May 132001: Apr 232002: May 242003: May 202004: May 142005: May 152006: May 52007: Apr 172008: May 112009: May 162010: May 122011: May 3

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 111960197019801990200020101951: Sep 161952: Oct 41953: Sep 211955: Sep 111956: Sep 61957: Sep 141960: Sep 301961: Sep 141962: Sep 41963: Oct 271964: Sep 121965: Sep 161966: Oct 11967: Sep 271968: Oct 31969: Oct 81971: Sep 171975: Sep 211976: Sep 271977: Oct 21978: Sep 201979: Oct 41980: Sep 251981: Oct 11982: Sep 151983: Sep 201984: Sep 51985: Sep 241986: Oct 111987: Oct 21988: Oct 41989: Sep 111990: Oct 61991: Sep 181992: Sep 281993: Sep 141994: Oct 231995: Sep 211996: Oct 21997: Sep 201998: Oct 121999: Sep 292000: Sep 232001: Oct 52003: Oct 12004: Oct 12005: Oct 52006: Oct 112007: Sep 142008: Oct 132009: Oct 52011: 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
2011May 3Oct 18Apr 24Oct 20
2010May 12no dataMay 8no data
2009May 16Oct 5May 16Oct 8
2008May 11Oct 13May 2Oct 13
2007Apr 17Sep 14Apr 13Oct 27
2006May 5Oct 11Apr 26Oct 11
2005May 15Oct 5May 3Oct 6
2004May 14Oct 1May 13Oct 1
2003May 20Oct 1Apr 8Oct 26
2002May 24no dataMay 2no data
2001Apr 23Oct 5Apr 23Oct 5
2000May 13Sep 23Apr 20Sep 24
1999Apr 23Sep 29Apr 17Oct 2
1998May 7Oct 12Apr 16Nov 4
1997May 20Sep 20Apr 16Oct 13
1996May 11Oct 2Apr 22Oct 18
1995Apr 29Sep 21Apr 28Sep 21
1994Apr 29Oct 23Apr 29Oct 23
1993May 1Sep 14Apr 21Sep 14
1992Apr 27Sep 28Apr 26Oct 8
1991May 6Sep 18May 6Sep 18
1990May 10Oct 6May 10Oct 7
1989May 6Sep 11May 6Sep 11
1988Apr 27Oct 4Apr 27Oct 4
1987May 22Oct 2Apr 11Oct 2
1986May 1Oct 11Apr 28Oct 12
1985Apr 27Sep 24Apr 9Sep 24
1984May 26Sep 5May 7Sep 26
1983May 16Sep 20May 14Sep 20
1982May 8Sep 15Apr 27Oct 7
1981May 10Oct 1May 10Oct 21
1980May 8Sep 25May 8Oct 14
1979May 24Oct 4May 11Oct 13
1978Apr 25Sep 20Apr 21Oct 6
1977Apr 24Oct 2Apr 4Oct 11
1976May 6Sep 27May 2Sep 27
1975May 1Sep 21Apr 19Oct 11
1972May 6no dataApr 24no data
1971no dataSep 17no dataOct 13
1970May 1no dataApr 23no data
1969Jun 13Oct 8Apr 28Oct 8
1968May 21Oct 3May 10Oct 3
1967May 12Sep 27May 11Sep 27
1966May 13Oct 1May 9Oct 15
1965May 27Sep 16Apr 27Sep 23
1964Apr 19Sep 12Apr 8Sep 27
1963May 22Oct 27Apr 30Oct 28
1962Apr 15Sep 4Apr 15Oct 23
1961May 4Sep 14May 1Sep 30
1960May 7Sep 30Apr 30Oct 18
1958Apr 29no dataApr 29no data
1957May 23Sep 14May 10Oct 24
1956May 14Sep 6Apr 30Oct 14
1955May 11Sep 11May 10Sep 11
1954May 9no dataMay 7no data
1953no dataSep 21no dataOct 25
1952May 28Oct 4Apr 12Oct 5
1951Jun 3Sep 16Apr 22Sep 27

"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.