Last Frost Day

Frost history / Kenmare 1 Wsw, ND

Kenmare 1 Wsw, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00324646, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,810 ft, 48.669, -102.097. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 17Sep 21
EarliestApr 27 (1957)Aug 14 (1979)
LatestJun 20 (1969)Oct 27 (1963)
Trend0.8 days earlier per decade2.0 days later per decade
Years with data5752

At 28°F (hard freeze) the median last spring date is May 6 and the median first fall date is Oct 1.

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 2919601970198019902000201020201951: Jun 11952: May 281953: May 151954: May 101955: May 81956: May 71957: Apr 271958: May 221959: May 281960: May 71961: May 171962: May 61963: May 221964: Jun 11965: May 281966: May 201967: May 191968: May 201969: Jun 201970: May 261971: May 191972: May 91974: May 61975: May 231977: May 71979: Jun 11980: May 141981: May 161982: May 81983: May 171984: May 291985: May 71986: May 171987: May 221988: May 161989: May 61990: May 181993: May 191999: May 112002: May 232003: May 192005: May 142006: May 112009: May 232010: May 92011: May 152012: Apr 282013: May 112016: May 162017: May 182018: May 182020: May 112021: May 292022: May 202023: May 12024: May 42025: May 16

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 231952: Sep 191953: Sep 211954: Sep 211955: Sep 101956: Sep 61957: Sep 191958: Sep 251959: Sep 151960: Sep 171961: Sep 221962: Sep 41963: Oct 271964: Sep 71965: Sep 51966: Sep 141967: Sep 271968: Oct 31969: Oct 81970: Sep 131971: Sep 181972: Sep 211974: Sep 21976: Sep 211977: Aug 171978: Sep 271979: Aug 141980: Sep 261981: Sep 31982: Aug 271983: Sep 141986: Sep 61987: Oct 21988: Oct 31989: Sep 101990: Oct 61992: Aug 302005: Sep 212006: Sep 182009: Oct 82010: Sep 172011: Sep 132013: Oct 42015: Oct 82016: Oct 52017: Oct 12019: Oct 22020: Sep 72021: Oct 152023: Oct 52024: Oct 32025: Oct 5

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
2025May 16Oct 5Apr 28Oct 6
2024May 4Oct 3Apr 27Oct 23
2023May 1Oct 5Apr 30Oct 10
2022May 20no dataMay 1no data
2021May 29Oct 15May 29Oct 19
2020May 11Sep 7May 11Sep 7
2019no dataOct 2no dataOct 9
2018May 18no dataApr 24no data
2017May 18Oct 1Apr 29Oct 4
2016May 16Oct 5May 13Oct 11
2015no dataOct 8no dataOct 16
2013May 11Oct 4May 10Oct 4
2012Apr 28no dataApr 28no data
2011May 15Sep 13May 15Oct 17
2010May 9Sep 17May 9Oct 16
2009May 23Oct 8May 23Oct 8
2006May 11Sep 18Apr 24Oct 3
2005May 14Sep 21May 14Oct 5
2003May 19no dataApr 29no data
2002May 23no dataMay 16no data
1999May 11no dataApr 22no data
1993May 19no dataMay 15no data
1992no dataAug 30no dataSep 27
1990May 18Oct 6May 12Oct 7
1989May 6Sep 10May 6Sep 12
1988May 16Oct 3Apr 27Oct 3
1987May 22Oct 2Apr 14Oct 2
1986May 17Sep 6May 7Sep 6
1985May 7no dataApr 26no data
1984May 29no dataMay 29no data
1983May 17Sep 14May 16Sep 21
1982May 8Aug 27May 8Aug 27
1981May 16Sep 3May 9Sep 16
1980May 14Sep 26May 13Oct 11
1979Jun 1Aug 14May 13Aug 14
1978no dataSep 27no dataOct 6
1977May 7Aug 17May 2Oct 1
1976no dataSep 21no dataSep 23
1975May 23no dataApr 15no data
1974May 6Sep 2Apr 22Sep 29
1972May 9Sep 21May 6Sep 21
1971May 19Sep 18May 3Oct 9
1970May 26Sep 13May 1Sep 13
1969Jun 20Oct 8Apr 28Oct 8
1968May 20Oct 3May 16Oct 3
1967May 19Sep 27May 12Sep 27
1966May 20Sep 14May 13Sep 25
1965May 28Sep 5May 28Sep 23
1964Jun 1Sep 7Apr 29Sep 11
1963May 22Oct 27May 22Oct 28
1962May 6Sep 4May 6Oct 23
1961May 17Sep 22May 17Sep 27
1960May 7Sep 17May 6Oct 2
1959May 28Sep 15May 14Sep 16
1958May 22Sep 25May 3Sep 30
1957Apr 27Sep 19Apr 27Sep 19
1956May 7Sep 6May 3Sep 6
1955May 8Sep 10Apr 7Sep 10
1954May 10Sep 21May 5Sep 30
1953May 15Sep 21May 13Sep 21
1952May 28Sep 19May 10Oct 4
1951Jun 1Sep 23Apr 24Sep 23

"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.