Last Frost Day

Frost history / Linton, ND

Linton, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00325210, 1951 to 2007, measured from daily minimum temperatures.

Elevation 1,690 ft, 46.267, -100.231. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 17Sep 16
EarliestApr 23 (1999)Aug 10 (1985)
LatestJul 4 (1972)Oct 22 (2007)
Trendlittle change (less than half a day per decade)2.8 days later per decade
Years with data4244

At 28°F (hard freeze) the median last spring date is May 11 and the median first fall date is Sep 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)

Apr 15Apr 30May 15May 30Jun 14Jun 29Jul 14196019701980199020001951: May 111952: May 171953: May 151954: May 191955: May 101956: May 41957: May 91958: May 191959: May 151960: May 111962: May 11963: May 231964: Jun 21965: May 281966: May 131967: Jul 31968: May 211970: May 261971: May 201972: Jul 41973: May 221974: May 241976: May 81977: Apr 251978: May 21979: May 231982: Jun 11985: May 171987: Jun 261988: May 161989: May 61991: May 71992: Jun 61994: May 91995: May 201996: May 101998: Jun 71999: Apr 232002: May 242003: May 192004: May 142006: May 14

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27196019701980199020001951: Sep 161952: Sep 201953: Sep 211954: Sep 211955: Sep 101956: Sep 61957: Sep 131958: Sep 211959: Sep 101960: Sep 121961: Sep 141962: Sep 41963: Sep 291964: Aug 121965: Sep 11966: Sep 141967: Sep 241968: Sep 61969: Sep 231970: Sep 131971: Sep 161972: Sep 261973: Sep 161974: Sep 21975: Sep 121976: Sep 91977: Oct 21978: Sep 201979: Sep 141981: Sep 11985: Aug 101986: Sep 301987: Aug 311988: Sep 131993: Sep 141995: Sep 201997: Sep 202001: Oct 32002: Sep 252003: Sep 182004: Sep 272005: Oct 62006: Sep 282007: Oct 22

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
2007no dataOct 22no dataOct 22
2006May 14Sep 28May 12Oct 11
2005no dataOct 6no dataOct 7
2004May 14Sep 27May 14Oct 1
2003May 19Sep 18May 19Sep 29
2002May 24Sep 25May 24Sep 26
2001no dataOct 3no dataOct 5
1999Apr 23no dataApr 19no data
1998Jun 7no dataJun 3no data
1997no dataSep 20no dataSep 20
1996May 10no dataMay 1no data
1995May 20Sep 20May 17Sep 20
1994May 9no dataMay 7no data
1993no dataSep 14no dataSep 23
1992Jun 6no dataMay 26no data
1991May 7no dataMay 7no data
1989May 6no dataMay 6no data
1988May 16Sep 13May 13Sep 23
1987Jun 26Aug 31May 23Oct 2
1986no dataSep 30no dataOct 12
1985May 17Aug 10May 6Sep 20
1982Jun 1no dataMay 7no data
1981no dataSep 1no dataSep 16
1979May 23Sep 14May 12Oct 4
1978May 2Sep 20Apr 21Oct 7
1977Apr 25Oct 2Apr 25Oct 2
1976May 8Sep 9May 7Sep 9
1975no dataSep 12no dataOct 15
1974May 24Sep 2May 24Sep 2
1973May 22Sep 16May 16Sep 16
1972Jul 4Sep 26May 4Sep 29
1971May 20Sep 16May 20Sep 21
1970May 26Sep 13May 1Sep 26
1969no dataSep 23no dataOct 8
1968May 21Sep 6May 21Oct 3
1967Jul 3Sep 24May 6Sep 27
1966May 13Sep 14May 9Sep 14
1965May 28Sep 1May 28Sep 5
1964Jun 2Aug 12Jun 2Sep 11
1963May 23Sep 29May 22Oct 26
1962May 1Sep 4May 1Oct 17
1961no dataSep 14no dataSep 28
1960May 11Sep 12May 11Sep 17
1959May 15Sep 10May 15Sep 10
1958May 19Sep 21Apr 29Sep 27
1957May 9Sep 13May 5Oct 17
1956May 4Sep 6May 4Sep 23
1955May 10Sep 10May 10Sep 11
1954May 19Sep 21May 8Oct 6
1953May 15Sep 21May 13Sep 21
1952May 17Sep 20May 12Oct 2
1951May 11Sep 16May 11Sep 28

"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.