Last Frost Day

Frost history / Dickinson Rch Hq, ND

Dickinson Rch Hq, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00322193, 1981 to 2025, measured from daily minimum temperatures.

Elevation 2,380 ft, 47.194, -102.841. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 19Sep 21
EarliestApr 17 (2007)Sep 1 (1981)
LatestJun 24 (2004)Oct 17 (2010)
Trend0.8 days earlier per decade4.5 days later per decade
Years with data4140

At 28°F (hard freeze) the median last spring date is May 10 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)

Mar 31Apr 15Apr 30May 15May 30Jun 14Jun 2919902000201020201982: Jun 201983: Jun 11984: May 271985: Jun 41986: May 171987: Apr 271988: May 41989: May 61990: May 141991: May 61992: May 271993: May 191994: May 41995: May 251996: May 131997: May 201998: Jun 42000: May 252001: Apr 222002: May 242003: May 202004: Jun 242006: May 152007: Apr 172008: May 272009: Jun 72010: May 122011: May 152013: May 132014: May 132015: May 302016: May 142017: May 312018: May 202019: May 202020: May 172021: May 112022: May 242023: May 192024: May 252025: May 2

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719902000201020201981: Sep 11982: Sep 151983: Sep 131984: Sep 41986: Sep 81987: Sep 131988: Sep 201989: Sep 111990: Sep 291991: Sep 181992: Sep 281993: Sep 131994: Sep 11995: Sep 81996: Sep 241997: Sep 202000: Sep 232001: Sep 302002: Sep 92005: Sep 222006: Sep 192007: Sep 142008: Oct 92009: Sep 292010: Oct 172011: Sep 142012: Sep 222013: Oct 52014: Sep 122015: Sep 292016: Oct 62017: Oct 32018: Sep 212019: Sep 292020: Sep 82021: Oct 152022: Sep 222023: Oct 62024: Oct 112025: Sep 6

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 2Sep 6May 2Oct 6
2024May 25Oct 11May 1Oct 14
2023May 19Oct 6May 2Oct 15
2022May 24Sep 22May 2Oct 7
2021May 11Oct 15May 11Oct 21
2020May 17Sep 8May 12Oct 2
2019May 20Sep 29May 20Oct 10
2018May 20Sep 21Apr 19Sep 21
2017May 31Oct 3May 21Oct 9
2016May 14Oct 6Apr 30Oct 7
2015May 30Sep 29May 20Oct 15
2014May 13Sep 12May 12Oct 4
2013May 13Oct 5May 11Oct 5
2012no dataSep 22no dataSep 22
2011May 15Sep 14May 15Sep 14
2010May 12Oct 17May 10Oct 23
2009Jun 7Sep 29May 16Sep 29
2008May 27Oct 9Apr 28Oct 13
2007Apr 17Sep 14Apr 13Sep 14
2006May 15Sep 19May 15Sep 20
2005no dataSep 22no dataOct 5
2004Jun 24no dataMay 16no data
2003May 20no dataApr 21no data
2002May 24Sep 9May 24Sep 28
2001Apr 22Sep 30Apr 22Sep 30
2000May 25Sep 23May 13Sep 24
1998Jun 4no dataMay 2no data
1997May 20Sep 20May 20Oct 13
1996May 13Sep 24May 10Oct 2
1995May 25Sep 8Apr 30Sep 21
1994May 4Sep 1May 4Oct 23
1993May 19Sep 13May 1Sep 14
1992May 27Sep 28May 27Sep 28
1991May 6Sep 18May 6Sep 19
1990May 14Sep 29May 12Oct 7
1989May 6Sep 11May 6Sep 12
1988May 4Sep 20Apr 27Sep 20
1987Apr 27Sep 13Apr 27Oct 2
1986May 17Sep 8May 17Sep 8
1985Jun 4no dataMay 7no data
1984May 27Sep 4May 26Sep 24
1983Jun 1Sep 13May 16Sep 21
1982Jun 20Sep 15May 7Sep 15
1981no dataSep 1no dataSep 16

"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.