Last Frost Day

Frost history / Gackle, ND

Gackle, ND: frost dates by year

Last spring and first fall frost at NOAA station USC00323309, 1951 to 2000, measured from daily minimum temperatures.

Elevation 1,951 ft, 46.627, -99.138. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 13Sep 23
EarliestApr 18 (1998)Aug 13 (1964)
LatestJun 20 (1969)Oct 27 (1963)
Trend1.9 days earlier per decade2.7 days later per decade
Years with data5049

At 28°F (hard freeze) the median last spring date is May 6 and the median first fall date is Oct 2.

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 29196019701980199020001951: May 101952: May 171953: May 141954: May 171955: May 101956: May 151957: May 91958: May 41959: May 231960: May 71961: May 261962: May 61963: May 221964: May 311965: May 281966: May 131967: May 121968: May 191969: Jun 201970: May 261971: May 201972: May 71973: May 161974: May 151975: May 11976: May 71977: May 71978: Apr 241979: May 121980: May 111981: May 101982: May 81983: May 161984: May 261985: Apr 271986: May 171987: May 221988: May 131989: May 271990: May 181991: May 71992: May 261993: May 201994: May 71995: Apr 301996: May 111997: May 151998: Apr 181999: May 82000: Apr 21

First fall frost (32°F)

Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11196019701980199020001951: Sep 221952: Sep 191953: Sep 211954: Sep 211955: Sep 101956: Sep 61957: Sep 261958: Sep 301959: Sep 101960: Sep 271961: Sep 281962: Sep 41963: Oct 271964: Aug 131965: Sep 51966: Sep 251967: Sep 271968: Oct 31969: Sep 231970: Sep 131971: Sep 211972: Sep 211973: Sep 161974: Sep 221975: Sep 201976: Sep 221977: Oct 11978: Oct 71979: Oct 41980: Oct 111981: Sep 171982: Sep 201983: Sep 211984: Sep 231985: Sep 231986: Oct 91987: Oct 21988: Oct 31989: Sep 231990: Sep 231991: Sep 181992: Sep 221993: Sep 171994: Oct 91995: Sep 201996: Sep 291997: Oct 131998: Oct 11999: Oct 1

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
2000Apr 21no dataApr 20no data
1999May 8Oct 1Apr 17Oct 1
1998Apr 18Oct 1Apr 16Oct 13
1997May 15Oct 13May 15Oct 13
1996May 11Sep 29May 10Oct 2
1995Apr 30Sep 20Apr 26Sep 20
1994May 7Oct 9Apr 30Oct 24
1993May 20Sep 17May 2Oct 2
1992May 26Sep 22Apr 26Sep 28
1991May 7Sep 18May 3Oct 4
1990May 18Sep 23May 10Oct 7
1989May 27Sep 23May 6Sep 23
1988May 13Oct 3May 13Oct 4
1987May 22Oct 2Apr 21Oct 7
1986May 17Oct 9Apr 21Oct 12
1985Apr 27Sep 23Apr 27Sep 24
1984May 26Sep 23May 1Sep 26
1983May 16Sep 21May 16Sep 21
1982May 8Sep 20May 7Oct 21
1981May 10Sep 17May 10Oct 14
1980May 11Oct 11May 11Oct 12
1979May 12Oct 4May 11Oct 4
1978Apr 24Oct 7Apr 20Oct 7
1977May 7Oct 1Apr 24Oct 6
1976May 7Sep 22May 7Sep 22
1975May 1Sep 20Apr 20Oct 1
1974May 15Sep 22May 15Sep 22
1973May 16Sep 16May 14Sep 16
1972May 7Sep 21May 4Oct 6
1971May 20Sep 21May 2Oct 28
1970May 26Sep 13May 5Sep 13
1969Jun 20Sep 23Apr 28Oct 8
1968May 19Oct 3May 9Oct 4
1967May 12Sep 27May 5Sep 27
1966May 13Sep 25May 9Oct 15
1965May 28Sep 5May 28Sep 24
1964May 31Aug 13May 12Sep 11
1963May 22Oct 27May 22Oct 27
1962May 6Sep 4Apr 18Oct 20
1961May 26Sep 28May 16Sep 28
1960May 7Sep 27May 7Sep 30
1959May 23Sep 10May 15Sep 16
1958May 4Sep 30May 1Sep 30
1957May 9Sep 26Apr 17Sep 26
1956May 15Sep 6May 4Sep 29
1955May 10Sep 10May 8Sep 11
1954May 17Sep 21May 9Oct 2
1953May 14Sep 21May 14Oct 24
1952May 17Sep 19May 11Sep 20
1951May 10Sep 22Apr 24Sep 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.