Last Frost Day

Frost history / Foxholm 7 N, ND

Foxholm 7 N, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00323217, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,675 ft, 48.458, -101.570. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 16Sep 19
EarliestApr 26 (2012)Aug 13 (1964)
LatestJun 20 (1969)Oct 20 (2021)
Trend2.0 days earlier per decade2.2 days later per decade
Years with data5548

At 28°F (hard freeze) the median last spring date is May 6 and the median first fall date is Sep 30.

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: May 101952: May 291953: May 141954: May 251955: May 81956: May 41957: May 91958: Jun 51959: May 271960: Jun 61961: May 261962: Jun 11963: May 221964: Jun 11965: May 281966: May 141967: May 151968: May 221969: Jun 201970: May 121971: May 181972: May 91973: May 161974: May 171975: May 21976: May 231977: May 21978: Jun 71979: May 201980: May 141981: May 111983: May 161984: May 261986: May 191987: May 221988: May 161989: May 61990: May 181992: May 231994: May 51996: May 132009: May 232010: May 92011: May 22012: Apr 262013: May 112014: May 152016: May 132017: May 182018: May 92019: May 202020: May 162023: May 12024: May 42025: Apr 29

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201951: Sep 221952: Oct 21953: Sep 211954: Sep 211955: Sep 101956: Sep 61957: Sep 161958: Sep 171959: Sep 101960: Sep 171961: Sep 71962: Sep 41963: Oct 111964: Aug 131965: Sep 151966: Sep 141967: Sep 271968: Aug 141969: Sep 261970: Sep 131971: Sep 181972: Sep 211973: Sep 151974: Sep 211975: Sep 81976: Sep 141977: Aug 171978: Sep 211981: Sep 161983: Sep 131985: Sep 211987: Oct 21988: Oct 31994: Oct 92010: Sep 172011: Sep 142012: Sep 212013: Oct 52014: Oct 42015: Sep 292016: Oct 62017: Oct 32019: Sep 72020: Sep 82021: Oct 202022: Sep 212023: Oct 62024: Oct 3

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 29no dataApr 29no data
2024May 4Oct 3Apr 27Oct 14
2023May 1Oct 6May 1Oct 9
2022no dataSep 21no dataSep 21
2021no dataOct 20no dataOct 21
2020May 16Sep 8May 16Oct 12
2019May 20Sep 7May 9Oct 10
2018May 9no dataApr 26no data
2017May 18Oct 3Apr 28Oct 13
2016May 13Oct 6Apr 22Oct 12
2015no dataSep 29no dataOct 17
2014May 15Oct 4Apr 18Oct 4
2013May 11Oct 5May 9Oct 21
2012Apr 26Sep 21Apr 26Sep 21
2011May 2Sep 14May 2Oct 18
2010May 9Sep 17May 8Oct 16
2009May 23no dataMay 16no data
1996May 13no dataMay 10no data
1994May 5Oct 9May 5Oct 25
1992May 23no dataApr 26no data
1990May 18no dataMay 1no data
1989May 6no dataMay 6no data
1988May 16Oct 3Apr 26Oct 4
1987May 22Oct 2Apr 21Oct 2
1986May 19no dataMay 1no data
1985no dataSep 21no dataSep 24
1984May 26no dataMay 26no data
1983May 16Sep 13May 16Sep 13
1981May 11Sep 16May 10Oct 6
1980May 14no dataMay 13no data
1979May 20no dataMay 15no data
1978Jun 7Sep 21Apr 23Sep 27
1977May 2Aug 17May 2Sep 29
1976May 23Sep 14May 3Sep 14
1975May 2Sep 8Apr 24Oct 25
1974May 17Sep 21May 17Sep 21
1973May 16Sep 15May 14Sep 16
1972May 9Sep 21May 6Sep 23
1971May 18Sep 18May 2Sep 22
1970May 12Sep 13May 5Sep 13
1969Jun 20Sep 26Jun 2Oct 5
1968May 22Aug 14May 21Oct 4
1967May 15Sep 27May 11Sep 27
1966May 14Sep 14May 14Oct 15
1965May 28Sep 15May 28Sep 24
1964Jun 1Aug 13Apr 29Sep 14
1963May 22Oct 11May 22Oct 11
1962Jun 1Sep 4May 6Sep 10
1961May 26Sep 7May 9Sep 28
1960Jun 6Sep 17May 4Sep 27
1959May 27Sep 10May 20Sep 10
1958Jun 5Sep 17May 1Oct 1
1957May 9Sep 16Apr 27Sep 19
1956May 4Sep 6May 4Sep 6
1955May 8Sep 10May 8Sep 25
1954May 25Sep 21May 17Oct 6
1953May 14Sep 21May 13Sep 21
1952May 29Oct 2May 17Oct 4
1951May 10Sep 22Apr 25Sep 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 1991–2020 frost probabilities.