Last Frost Day

Frost history / Towner 2 Ne, ND

Towner 2 Ne, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00328792, 1951 to 2024, measured from daily minimum temperatures.

Elevation 1,480 ft, 48.371, -100.391. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 18Sep 19
EarliestApr 25 (2001)Aug 13 (1977)
LatestJun 20 (1969)Oct 16 (2021)
Trend0.5 days earlier per decade2.4 days later per decade
Years with data6563

At 28°F (hard freeze) the median last spring date is May 10 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 2919601970198019902000201020201951: May 101952: May 301953: May 191954: May 171955: May 91956: May 311957: May 231958: May 191959: May 271960: May 91961: May 261962: May 61963: May 221964: May 311966: May 161967: May 151968: May 231969: Jun 201970: May 261971: May 111972: May 91973: May 161974: May 41975: Apr 301977: May 21978: Jun 71979: May 311980: May 151981: May 141983: Jun 161984: May 281985: Jun 41986: Jun 161987: May 221988: May 161989: May 61990: May 181991: May 81992: May 251993: May 161994: May 61995: May 231996: May 131997: May 201998: Jun 71999: May 82000: May 182001: Apr 252002: Jun 92003: Jun 62005: May 152006: May 132007: May 252008: May 272009: May 192010: Apr 272011: May 42012: Apr 262013: May 122014: May 162016: May 182018: May 102019: May 282021: May 292024: May 25

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201951: Sep 231952: Sep 191953: Sep 211954: Sep 211955: Sep 101956: Aug 201957: Sep 131958: Sep 251959: Sep 101960: Sep 131961: Sep 111962: Sep 41963: Sep 131966: Sep 141967: Sep 271968: Aug 141970: Sep 131971: Sep 211972: Sep 211975: Sep 111977: Aug 131978: Sep 201979: Aug 141980: Sep 261981: Sep 151983: Sep 131984: Sep 41985: Sep 231986: Sep 61987: Oct 21988: Oct 21989: Sep 121990: Sep 161991: Sep 181992: Sep 181993: Sep 141994: Sep 221995: Sep 191996: Sep 291997: Sep 201998: Sep 211999: Sep 272000: Sep 232001: Sep 232002: Sep 222003: Sep 192004: Aug 192005: Sep 222006: Sep 202007: Sep 112008: Sep 272009: Oct 82010: Sep 182011: Sep 142012: Sep 142013: Oct 132014: Sep 222015: Sep 292016: Oct 62017: Oct 42019: Oct 52020: Sep 82021: Oct 16

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
2024May 25no dataApr 29no data
2021May 29Oct 16May 29Oct 20
2020no dataSep 8no dataSep 8
2019May 28Oct 5May 11Oct 10
2018May 10no dataMay 10no data
2017no dataOct 4no dataOct 4
2016May 18Oct 6Apr 25Oct 8
2015no dataSep 29no dataOct 16
2014May 16Sep 22May 15Oct 4
2013May 12Oct 13May 12Oct 13
2012Apr 26Sep 14Apr 26Sep 22
2011May 4Sep 14May 2Oct 18
2010Apr 27Sep 18Apr 12Sep 18
2009May 19Oct 8May 17Oct 8
2008May 27Sep 27May 27Oct 2
2007May 25Sep 11Apr 18Sep 14
2006May 13Sep 20May 12Sep 28
2005May 15Sep 22May 13Oct 6
2004no dataAug 19no dataOct 1
2003Jun 6Sep 19May 20Sep 19
2002Jun 9Sep 22May 25Sep 25
2001Apr 25Sep 23Apr 25Oct 4
2000May 18Sep 23May 18Sep 23
1999May 8Sep 27Apr 24Sep 29
1998Jun 7Sep 21Apr 22Oct 1
1997May 20Sep 20May 15Sep 20
1996May 13Sep 29May 12Sep 29
1995May 23Sep 19Apr 29Sep 21
1994May 6Sep 22May 6Oct 9
1993May 16Sep 14May 16Sep 17
1992May 25Sep 18May 23Sep 22
1991May 8Sep 18May 8Sep 19
1990May 18Sep 16May 14Sep 16
1989May 6Sep 12May 6Sep 23
1988May 16Oct 2May 16Oct 3
1987May 22Oct 2May 22Oct 2
1986Jun 16Sep 6May 18Oct 9
1985Jun 4Sep 23Apr 27Sep 23
1984May 28Sep 4May 26Sep 23
1983Jun 16Sep 13May 16Sep 13
1981May 14Sep 15May 10Oct 6
1980May 15Sep 26May 12Oct 12
1979May 31Aug 14May 11Oct 4
1978Jun 7Sep 20Apr 21Sep 27
1977May 2Aug 13May 2Aug 17
1975Apr 30Sep 11Apr 15Sep 12
1974May 4no dataApr 10no data
1973May 16no dataMay 2no data
1972May 9Sep 21May 6Oct 6
1971May 11Sep 21Apr 29Oct 9
1970May 26Sep 13May 5Sep 13
1969Jun 20no dataJun 12no data
1968May 23Aug 14May 20Oct 3
1967May 15Sep 27May 13Sep 27
1966May 16Sep 14May 9Oct 11
1964May 31no dataApr 22no data
1963May 22Sep 13May 22Oct 11
1962May 6Sep 4May 6Oct 23
1961May 26Sep 11May 3Sep 24
1960May 9Sep 13May 7Sep 17
1959May 27Sep 10May 23Sep 10
1958May 19Sep 25May 3Sep 30
1957May 23Sep 13Apr 17Sep 16
1956May 31Aug 20Apr 29Sep 6
1955May 9Sep 10May 8Sep 11
1954May 17Sep 21May 9Sep 21
1953May 19Sep 21May 14Sep 21
1952May 30Sep 19May 28Sep 19
1951May 10Sep 23May 10Sep 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.