Last Frost Day

Frost history / Enderlin 2W, ND

Enderlin 2W, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00322695, 1952 to 2025, measured from daily minimum temperatures.

Elevation 1,164 ft, 46.617, -97.639. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 11Sep 25
EarliestApr 18 (1998)Aug 20 (2004)
LatestJun 6 (1953)Oct 21 (2025)
Trend2.1 days earlier per decade2.8 days later per decade
Years with data5360

At 28°F (hard freeze) the median last spring date is May 3 and the median first fall date is Oct 5.

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 1419601970198019902000201020201953: Jun 61954: May 191955: May 101956: May 191957: May 161958: May 251959: May 221960: May 111961: May 261962: May 61964: May 131965: May 281966: May 101967: May 201969: May 201970: May 71971: May 121974: May 61975: May 151976: May 71977: May 21979: May 161981: May 111982: May 81983: May 251985: Apr 271994: May 71995: May 231996: May 101997: May 211998: Apr 182002: May 242004: May 142005: May 142006: Apr 252008: May 272009: May 162010: May 92011: May 32012: Apr 262013: May 122014: May 162015: May 92016: May 142017: Apr 292018: Apr 282019: May 92020: May 122021: May 112022: Apr 272023: Apr 262024: Apr 242025: Apr 29

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201952: Sep 191953: Sep 211954: Sep 221955: Sep 101956: Sep 61957: Sep 201958: Sep 171959: Sep 101960: Sep 271961: Sep 251962: Sep 201963: Oct 121964: Sep 111965: Sep 241966: Sep 151969: Oct 81970: Sep 281974: Sep 41975: Sep 241976: Sep 231977: Oct 21978: Oct 71979: Sep 71980: Sep 231981: Sep 171982: Sep 201983: Sep 221985: Sep 211993: Sep 151994: Sep 231995: Sep 201996: Sep 141997: Oct 131998: Oct 11999: Oct 12000: Sep 152002: Sep 262003: Sep 282004: Aug 202005: Oct 52006: Oct 92007: Sep 282008: Sep 302009: Oct 82010: Oct 22011: Sep 152012: Sep 222013: Oct 162014: Oct 42015: Oct 162016: Oct 82017: Oct 102018: Sep 292019: Oct 102020: Oct 32021: Oct 202022: Oct 62023: Oct 62024: Oct 142025: Oct 21

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 29Oct 21Apr 29Oct 23
2024Apr 24Oct 14Apr 20Oct 14
2023Apr 26Oct 6Apr 25Oct 26
2022Apr 27Oct 6Apr 27Oct 6
2021May 11Oct 20Apr 24Oct 22
2020May 12Oct 3May 12Oct 17
2019May 9Oct 10Apr 13Oct 27
2018Apr 28Sep 29Apr 17Oct 11
2017Apr 29Oct 10Apr 27Oct 27
2016May 14Oct 8May 14Oct 24
2015May 9Oct 16Apr 23Oct 16
2014May 16Oct 4Apr 17Oct 9
2013May 12Oct 16May 12Oct 22
2012Apr 26Sep 22Apr 17Oct 5
2011May 3Sep 15May 1Oct 18
2010May 9Oct 2Apr 8Oct 21
2009May 16Oct 8Apr 11Oct 8
2008May 27Sep 30May 11Oct 21
2007no dataSep 28no dataOct 22
2006Apr 25Oct 9Apr 25Oct 11
2005May 14Oct 5May 3Oct 6
2004May 14Aug 20May 14Sep 28
2003no dataSep 28no dataSep 30
2002May 24Sep 26May 24Oct 2
2000no dataSep 15no dataSep 24
1999no dataOct 1no dataOct 1
1998Apr 18Oct 1Apr 16Oct 1
1997May 21Oct 13May 15Oct 16
1996May 10Sep 14May 10Oct 2
1995May 23Sep 20Apr 26Sep 20
1994May 7Sep 23Apr 30Oct 24
1993no dataSep 15no dataSep 15
1985Apr 27Sep 21Apr 27Sep 26
1983May 25Sep 22May 16Sep 23
1982May 8Sep 20May 7Sep 25
1981May 11Sep 17May 10Oct 21
1980no dataSep 23no dataSep 23
1979May 16Sep 7May 12Oct 4
1978no dataOct 7no dataOct 7
1977May 2Oct 2Apr 13Oct 15
1976May 7Sep 23May 7Sep 23
1975May 15Sep 24May 3Oct 1
1974May 6Sep 4May 3Sep 22
1971May 12no dataMay 12no data
1970May 7Sep 28May 5Nov 4
1969May 20Oct 8Apr 28Oct 14
1967May 20no dataMay 9no data
1966May 10Sep 15May 9Oct 16
1965May 28Sep 24Apr 27Sep 26
1964May 13Sep 11Apr 20Sep 15
1963no dataOct 12no dataOct 29
1962May 6Sep 20Apr 19Oct 23
1961May 26Sep 25May 16Sep 28
1960May 11Sep 27May 8Sep 30
1959May 22Sep 10May 15Sep 17
1958May 25Sep 17May 4Oct 1
1957May 16Sep 20May 9Sep 23
1956May 19Sep 6May 1Sep 14
1955May 10Sep 10May 8Sep 11
1954May 19Sep 22May 8Sep 22
1953Jun 6Sep 21May 16Sep 22
1952no dataSep 19no dataSep 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.