Last Frost Day

Frost history / Seward, NE

Seward, NE: frost dates by year

Last spring and first fall frost at NOAA station USC00257715, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,445 ft, 40.900, -97.091. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 23Oct 13
EarliestMar 30 (1991)Sep 19 (1991)
LatestMay 16 (2014)Nov 5 (1993)
Trendlittle change (less than half a day per decade)little change (less than half a day per decade)
Years with data7069

At 28°F (hard freeze) the median last spring date is Apr 14 and the median first fall date is Oct 24.

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 16Mar 31Apr 15Apr 30May 15May 3019601970198019902000201020201951: Apr 221952: Apr 151953: May 141954: May 51955: Apr 61956: Apr 301957: Apr 141958: Apr 291959: Apr 221960: Apr 301961: May 21962: Apr 151963: Apr 231964: Apr 91965: Apr 281966: May 91967: May 41968: Apr 241969: Apr 61970: Apr 231971: Apr 71972: Apr 91973: May 151974: Apr 161975: Apr 201976: May 31977: Apr 51978: Apr 211979: May 111980: May 81981: Apr 51982: Apr 221983: Apr 191984: Apr 51985: Apr 91986: Apr 221987: Apr 51988: Apr 271989: May 61990: Apr 281991: Mar 301992: Apr 271993: Apr 51994: May 11995: May 21996: Apr 231997: May 131998: Apr 171999: Apr 182000: Apr 212001: Apr 242002: Apr 252003: Apr 102004: May 32005: May 32006: Apr 262007: Apr 152008: Apr 282009: Apr 282010: Apr 172011: May 32012: Apr 112013: May 42014: May 162015: Apr 232016: Apr 132017: May 12023: Apr 252024: Apr 222025: Apr 9

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 281952: Oct 61953: Oct 271954: Oct 161955: Oct 241956: Oct 261957: Oct 251958: Oct 241959: Oct 91960: Oct 191961: Oct 261962: Oct 251963: Oct 291964: Oct 91965: Sep 241966: Oct 51967: Oct 251968: Oct 191969: Oct 141970: Oct 91971: Oct 311972: Oct 71974: Oct 21975: Sep 251976: Oct 81977: Oct 91978: Oct 71979: Oct 131980: Oct 31981: Oct 221982: Oct 201983: Oct 131984: Sep 261985: Oct 11986: Oct 121987: Oct 101988: Oct 41989: Oct 181990: Oct 101991: Sep 191992: Oct 161993: Nov 51994: Oct 251995: Sep 221996: Oct 241997: Oct 211998: Oct 221999: Oct 42000: Oct 62001: Oct 62002: Oct 132003: Oct 172004: Oct 22005: Sep 292006: Oct 122007: Oct 232009: Oct 42010: Oct 192011: Oct 192012: Oct 62013: Oct 192014: Oct 112015: Oct 292016: Oct 132017: Oct 112022: Oct 82023: Oct 282024: Oct 142025: Oct 23

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 9Oct 23Apr 9Oct 30
2024Apr 22Oct 14Apr 22Oct 16
2023Apr 25Oct 28Apr 25Oct 28
2022no dataOct 8no dataOct 8
2017May 1Oct 11Apr 27Oct 28
2016Apr 13Oct 13Apr 12Oct 13
2015Apr 23Oct 29Apr 23Oct 30
2014May 16Oct 11Apr 16Oct 30
2013May 4Oct 19Apr 26Oct 24
2012Apr 11Oct 6Mar 10Oct 7
2011May 3Oct 19Apr 5Oct 20
2010Apr 17Oct 19Mar 25Oct 28
2009Apr 28Oct 4Apr 14Oct 10
2008Apr 28no dataApr 15no data
2007Apr 15Oct 23Apr 9Oct 28
2006Apr 26Oct 12Mar 26Oct 12
2005May 3Sep 29May 3Oct 7
2004May 3Oct 2May 3Oct 2
2003Apr 10Oct 17Apr 10Oct 26
2002Apr 25Oct 13Apr 5Oct 13
2001Apr 24Oct 6Apr 17Oct 6
2000Apr 21Oct 6Apr 8Oct 6
1999Apr 18Oct 4Apr 18Oct 20
1998Apr 17Oct 22Apr 17Nov 6
1997May 13Oct 21May 13Oct 26
1996Apr 23Oct 24Apr 13Oct 30
1995May 2Sep 22Apr 13Sep 22
1994May 1Oct 25Apr 6Oct 25
1993Apr 5Nov 5Apr 5Nov 5
1992Apr 27Oct 16Apr 22Oct 17
1991Mar 30Sep 19Mar 30Oct 6
1990Apr 28Oct 10Apr 17Oct 10
1989May 6Oct 18Apr 15Oct 20
1988Apr 27Oct 4Apr 18Oct 28
1987Apr 5Oct 10Apr 4Oct 11
1986Apr 22Oct 12Apr 22Oct 13
1985Apr 9Oct 1Apr 8Nov 2
1984Apr 5Sep 26Apr 1Sep 29
1983Apr 19Oct 13Apr 18Nov 10
1982Apr 22Oct 20Apr 21Oct 21
1981Apr 5Oct 22Mar 23Oct 22
1980May 8Oct 3Apr 14Oct 26
1979May 11Oct 13Apr 9Oct 13
1978Apr 21Oct 7Apr 21Nov 14
1977Apr 5Oct 9Apr 5Oct 12
1976May 3Oct 8May 3Oct 16
1975Apr 20Sep 25Apr 4Oct 25
1974Apr 16Oct 2Apr 8Oct 15
1973May 15no dataApr 11no data
1972Apr 9Oct 7Apr 9Oct 18
1971Apr 7Oct 31Apr 6Oct 31
1970Apr 23Oct 9Apr 13Oct 29
1969Apr 6Oct 14Mar 31Oct 14
1968Apr 24Oct 19Apr 5Nov 3
1967May 4Oct 25May 4Oct 28
1966May 9Oct 5Apr 21Oct 16
1965Apr 28Sep 24Mar 30Oct 24
1964Apr 9Oct 9Apr 8Oct 9
1963Apr 23Oct 29Apr 23Nov 1
1962Apr 15Oct 25Apr 15Oct 25
1961May 2Oct 26Apr 18Nov 2
1960Apr 30Oct 19Mar 26Oct 19
1959Apr 22Oct 9Apr 13Oct 17
1958Apr 29Oct 24Apr 29Oct 26
1957Apr 14Oct 25Apr 14Oct 25
1956Apr 30Oct 26Apr 24Nov 8
1955Apr 6Oct 24Apr 6Oct 24
1954May 5Oct 16May 3Oct 30
1953May 14Oct 27Apr 20Nov 5
1952Apr 15Oct 6Apr 10Oct 6
1951Apr 22Sep 28Apr 16Oct 31

"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.