Last Frost Day

Frost history / Purdum, NE

Purdum, NE: frost dates by year

Last spring and first fall frost at NOAA station USC00256970, 1951 to 2024, measured from daily minimum temperatures.

Elevation 2,690 ft, 42.065, -100.247. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 11Sep 27
EarliestApr 16 (2011)Sep 3 (1974)
LatestJun 10 (1995)Oct 28 (1963)
Trendlittle change (less than half a day per decade)1.0 days later per decade
Years with data6054

At 28°F (hard freeze) the median last spring date is May 2 and the median first fall date is Oct 7.

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 2919601970198019902000201020201951: May 111952: May 121953: May 141954: May 81955: May 101956: May 41957: May 51958: Apr 301959: May 151960: May 111961: May 91962: May 11963: May 221964: May 311965: Apr 281966: May 131967: May 151968: May 211969: Jun 21970: May 151971: May 121972: May 71973: May 151974: May 121975: May 31976: May 171977: Apr 251978: May 21979: May 111980: May 111981: May 191982: Jun 11983: May 151984: May 81986: May 171987: Apr 221988: Apr 281990: May 101994: Apr 301995: Jun 101996: May 11997: May 202002: May 242006: May 122007: Apr 202008: May 132009: May 162010: May 82011: Apr 162012: May 92013: May 52014: May 162015: May 202016: May 142017: May 232019: May 92020: May 102021: May 112023: May 22024: May 2

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 221953: Sep 211954: Sep 211955: Oct 71956: Sep 61957: Oct 171958: Sep 271959: Sep 101960: Sep 301961: Sep 141962: Oct 161963: Oct 281964: Sep 271965: Sep 241966: Oct 11967: Sep 271968: Oct 31969: Oct 51970: Sep 261972: Sep 261973: Sep 171974: Sep 31975: Sep 121976: Sep 271977: Oct 91978: Sep 221979: Oct 41980: Oct 31981: Sep 161982: Sep 201983: Sep 201986: Oct 111988: Oct 41990: Sep 231995: Sep 201997: Oct 131999: Sep 292001: Sep 242002: Sep 222006: Sep 192007: Sep 132008: Oct 122009: Sep 282010: Oct 132011: Sep 222012: Sep 222013: Oct 42014: Oct 32015: Oct 152016: Sep 282017: Oct 92021: Oct 132022: Oct 72024: 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
2024May 2Oct 1Apr 20Oct 3
2023May 2no dataMay 2no data
2022no dataOct 7no dataOct 7
2021May 11Oct 13Apr 22Oct 14
2020May 10no dataMay 9no data
2019May 9no dataMay 9no data
2017May 23Oct 9Apr 27Oct 9
2016May 14Sep 28May 14Nov 7
2015May 20Oct 15Apr 22Oct 15
2014May 16Oct 3May 16Oct 3
2013May 5Oct 4May 5Oct 16
2012May 9Sep 22Apr 12Oct 5
2011Apr 16Sep 22Mar 10Sep 30
2010May 8Oct 13Mar 26Oct 19
2009May 16Sep 28Apr 27Oct 8
2008May 13Oct 12May 11Oct 13
2007Apr 20Sep 13Apr 14Oct 20
2006May 12Sep 19May 12Oct 12
2002May 24Sep 22May 18Oct 13
2001no dataSep 24no dataOct 6
1999no dataSep 29no dataOct 2
1997May 20Oct 13May 12Oct 25
1996May 1no dataApr 29no data
1995Jun 10Sep 20Apr 30Sep 22
1994Apr 30no dataApr 29no data
1990May 10Sep 23May 10Sep 23
1988Apr 28Oct 4Apr 26Oct 4
1987Apr 22no dataApr 22no data
1986May 17Oct 11May 1Oct 12
1984May 8no dataMay 8no data
1983May 15Sep 20May 15Sep 20
1982Jun 1Sep 20Apr 30Oct 11
1981May 19Sep 16May 19Sep 17
1980May 11Oct 3May 8Oct 11
1979May 11Oct 4May 11Oct 4
1978May 2Sep 22Apr 21Oct 6
1977Apr 25Oct 9Apr 25Oct 12
1976May 17Sep 27May 6Sep 28
1975May 3Sep 12Apr 20Oct 1
1974May 12Sep 3Apr 16Sep 28
1973May 15Sep 17May 14Oct 27
1972May 7Sep 26May 7Sep 26
1971May 12no dataApr 28no data
1970May 15Sep 26May 2Oct 8
1969Jun 2Oct 5May 11Oct 12
1968May 21Oct 3May 20Oct 3
1967May 15Sep 27May 3Sep 27
1966May 13Oct 1May 13Oct 10
1965Apr 28Sep 24Apr 28Sep 24
1964May 31Sep 27Apr 29Sep 27
1963May 22Oct 28May 22Oct 28
1962May 1Oct 16Apr 17Oct 20
1961May 9Sep 14Apr 28Oct 19
1960May 11Sep 30May 11Sep 30
1959May 15Sep 10May 15Oct 3
1958Apr 30Sep 27Apr 29Oct 1
1957May 5Oct 17Apr 13Oct 24
1956May 4Sep 6Apr 29Nov 4
1955May 10Oct 7Apr 7Oct 14
1954May 8Sep 21May 3Oct 15
1953May 14Sep 21May 13Sep 21
1952May 12no dataMay 11no data
1951May 11Sep 22May 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.