Last Frost Day

Frost history / Curtis, NE

Curtis, NE: frost dates by year

Last spring and first fall frost at NOAA station USC00252100, 1951 to 2025, measured from daily minimum temperatures.

Elevation 2,606 ft, 40.634, -100.522. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 8Sep 27
EarliestApr 9 (2012)Sep 3 (1974)
LatestJun 2 (1969)Oct 29 (2015)
Trend1.1 days earlier per decade1.8 days later per decade
Years with data5756

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

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 1419601970198019902000201020201951: May 71952: May 111953: May 141954: May 71955: Apr 211956: Apr 301957: Apr 141958: Apr 291959: May 151960: May 121961: May 91962: May 31963: May 221964: May 311965: May 111966: May 241967: May 171968: May 201969: Jun 21970: May 161971: May 201972: May 71973: May 151974: May 121975: May 81977: Apr 261978: May 41979: May 241980: May 81981: May 241982: May 71983: May 191986: Apr 201987: Apr 221988: May 41989: May 71990: May 111991: May 71993: May 31995: Apr 281996: Apr 301999: May 122000: May 132001: Apr 232002: May 252003: Apr 212011: Apr 172012: Apr 92014: Apr 182015: May 122019: May 132020: May 112021: May 122022: May 222023: May 32024: Apr 292025: May 4

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 161952: Sep 221953: Sep 211954: Sep 221955: Oct 71956: Sep 61957: Oct 241958: Sep 271959: Sep 101960: Sep 301961: Sep 251962: Sep 51963: Oct 251964: Sep 271965: Sep 241966: Oct 11967: Sep 271968: Sep 251969: Oct 81970: Sep 261971: Sep 191972: Sep 261973: Sep 171974: Sep 31975: Sep 211976: Sep 281977: Oct 91978: Sep 211979: Sep 151980: Sep 231981: Sep 171985: Sep 241986: Oct 101987: Oct 61988: Oct 71989: Sep 141990: Sep 231991: Sep 191992: Sep 291993: Sep 151995: Sep 211997: Oct 92000: Sep 252001: Oct 62002: Sep 272011: Oct 12012: Oct 22013: Oct 162014: Oct 52015: Oct 292019: Oct 72020: Sep 292021: Sep 222022: Oct 82023: Oct 72024: Oct 7

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 4no dataMay 3no data
2024Apr 29Oct 7Apr 21Oct 14
2023May 3Oct 7May 3Oct 7
2022May 22Oct 8May 22Oct 9
2021May 12Sep 22Apr 23Oct 14
2020May 11Sep 29Apr 21Oct 2
2019May 13Oct 7May 11Oct 7
2015May 12Oct 29Mar 27Oct 30
2014Apr 18Oct 5Apr 16Oct 29
2013no dataOct 16no dataNov 2
2012Apr 9Oct 2Mar 10Oct 7
2011Apr 17Oct 1Mar 25Oct 20
2003Apr 21no dataApr 12no data
2002May 25Sep 27May 2Oct 13
2001Apr 23Oct 6Apr 23Oct 6
2000May 13Sep 25Apr 22Oct 6
1999May 12no dataApr 19no data
1997no dataOct 9no dataOct 25
1996Apr 30no dataApr 23no data
1995Apr 28Sep 21Apr 28Sep 22
1993May 3Sep 15Apr 22Oct 10
1992no dataSep 29no dataOct 9
1991May 7Sep 19May 6Oct 6
1990May 11Sep 23May 2Sep 23
1989May 7Sep 14May 7Sep 23
1988May 4Oct 7Apr 27Oct 25
1987Apr 22Oct 6Apr 22Oct 6
1986Apr 20Oct 10Apr 16Oct 11
1985no dataSep 24no dataOct 1
1983May 19no dataMay 19no data
1982May 7no dataApr 23no data
1981May 24Sep 17May 10Sep 17
1980May 8Sep 23May 8Oct 3
1979May 24Sep 15May 11Oct 4
1978May 4Sep 21Apr 25Sep 21
1977Apr 26Oct 9Apr 26Oct 9
1976no dataSep 28no dataSep 28
1975May 8Sep 21May 8Sep 22
1974May 12Sep 3Apr 30Sep 3
1973May 15Sep 17May 15Oct 27
1972May 7Sep 26May 7Sep 30
1971May 20Sep 19May 12Sep 19
1970May 16Sep 26May 2Sep 26
1969Jun 2Oct 8Apr 18Oct 12
1968May 20Sep 25Apr 24Oct 4
1967May 17Sep 27May 3Sep 27
1966May 24Oct 1May 13Oct 1
1965May 11Sep 24Apr 29Sep 24
1964May 31Sep 27Apr 10Sep 27
1963May 22Oct 25May 22Oct 28
1962May 3Sep 5May 1Oct 18
1961May 9Sep 25Apr 28Oct 19
1960May 12Sep 30May 1Sep 30
1959May 15Sep 10Apr 22Oct 3
1958Apr 29Sep 27Apr 24Oct 1
1957Apr 14Oct 24Apr 13Oct 25
1956Apr 30Sep 6Apr 29Oct 7
1955Apr 21Oct 7Apr 14Oct 14
1954May 7Sep 22May 3Oct 15
1953May 14Sep 21May 14Oct 4
1952May 11Sep 22Apr 15Oct 6
1951May 7Sep 16May 7Sep 28

"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.