Last Frost Day

Frost history / Drake 9 Ne, ND

Drake 9 Ne, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00322304, 1964 to 2025, measured from daily minimum temperatures.

Elevation 1,547 ft, 48.049, -100.309. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 13Sep 23
EarliestApr 21 (1978)Aug 27 (1982)
LatestJun 20 (1969)Oct 13 (2024)
Trend1.5 days earlier per decade2.8 days later per decade
Years with data5858

At 28°F (hard freeze) the median last spring date is May 6 and the median first fall date is Oct 4.

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 291970198019902000201020201965: May 281966: May 161967: May 151968: May 201969: Jun 201970: May 51971: May 191972: May 91973: May 161975: May 11976: May 71977: May 21978: Apr 211979: May 121980: May 151981: May 101982: May 81983: May 161984: May 261985: Apr 271986: May 171987: May 221988: May 161990: May 181991: May 71993: May 201994: May 61995: Apr 291996: May 131997: May 161998: May 21999: Apr 242000: Apr 212001: Apr 252002: May 242003: May 202004: May 172005: May 152006: May 132007: Apr 232008: May 112009: May 172010: May 102011: May 42012: Apr 262013: May 132014: May 162015: May 202016: May 152017: May 182018: May 32019: May 212020: May 132021: May 122022: May 22023: May 32024: Apr 292025: Apr 30

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 271970198019902000201020201964: Sep 111965: Sep 51966: Sep 141967: Sep 271968: Sep 61969: Sep 271970: Sep 131971: Sep 181972: Sep 211973: Sep 151975: Sep 121976: Sep 231977: Oct 21978: Sep 201979: Sep 211980: Oct 111981: Sep 161982: Aug 271983: Sep 131984: Sep 41985: Sep 231986: Sep 61987: Oct 21988: Oct 21989: Sep 101990: Sep 231991: Sep 181992: Sep 221993: Sep 141994: Oct 91995: Sep 211996: Sep 291997: Sep 201998: Oct 11999: Sep 282000: Sep 232001: Oct 52002: Sep 242003: Sep 192004: Oct 12005: Sep 232006: Sep 202007: Sep 152008: Oct 22009: Oct 82010: Sep 192011: Sep 142014: Oct 42015: Sep 302016: Oct 62017: Oct 52018: Sep 262019: Oct 32020: Sep 92022: Sep 222023: Oct 72024: Oct 132025: Oct 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
2025Apr 30Oct 6Apr 30Oct 23
2024Apr 29Oct 13Apr 28Oct 16
2023May 3Oct 7Apr 26Oct 7
2022May 2Sep 22Apr 28Oct 7
2021May 12no dataMay 12no data
2020May 13Sep 9May 12Oct 15
2019May 21Oct 3May 10Oct 11
2018May 3Sep 26May 2Sep 28
2017May 18Oct 5Apr 28Oct 13
2016May 15Oct 6Apr 14Oct 8
2015May 20Sep 30May 19Oct 9
2014May 16Oct 4May 16Oct 4
2013May 13no dataMay 12no data
2012Apr 26no dataApr 21no data
2011May 4Sep 14May 4Oct 18
2010May 10Sep 19May 9Oct 17
2009May 17Oct 8May 16Oct 9
2008May 11Oct 2May 11Oct 14
2007Apr 23Sep 15Apr 18Oct 13
2006May 13Sep 20May 5Sep 28
2005May 15Sep 23May 15Oct 6
2004May 17Oct 1May 15Oct 2
2003May 20Sep 19Apr 28Sep 30
2002May 24Sep 24May 24Sep 25
2001Apr 25Oct 5Apr 24Oct 5
2000Apr 21Sep 23Apr 21Oct 4
1999Apr 24Sep 28Apr 20Oct 1
1998May 2Oct 1Apr 21Oct 1
1997May 16Sep 20May 16Sep 20
1996May 13Sep 29May 11Oct 2
1995Apr 29Sep 21Apr 26Sep 21
1994May 6Oct 9May 5Oct 24
1993May 20Sep 14May 1Sep 17
1992no dataSep 22no dataSep 22
1991May 7Sep 18May 7Sep 19
1990May 18Sep 23May 18Oct 7
1989no dataSep 10no dataSep 23
1988May 16Oct 2May 16Oct 3
1987May 22Oct 2May 22Oct 2
1986May 17Sep 6Apr 28Oct 9
1985Apr 27Sep 23Apr 26Sep 24
1984May 26Sep 4May 26Sep 23
1983May 16Sep 13May 16Sep 22
1982May 8Aug 27May 7Aug 27
1981May 10Sep 16May 9Oct 14
1980May 15Oct 11May 11Oct 11
1979May 12Sep 21May 10Oct 4
1978Apr 21Sep 20Apr 21Oct 7
1977May 2Oct 2Apr 24Oct 15
1976May 7Sep 23May 6Sep 23
1975May 1Sep 12Apr 20Oct 15
1973May 16Sep 15May 14Sep 16
1972May 9Sep 21May 6Sep 29
1971May 19Sep 18Apr 29Oct 9
1970May 5Sep 13May 5Sep 13
1969Jun 20Sep 27Apr 28Oct 8
1968May 20Sep 6May 20Oct 4
1967May 15Sep 27May 14Sep 27
1966May 16Sep 14May 9Oct 15
1965May 28Sep 5May 28Sep 24
1964no dataSep 11no dataSep 11

"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.