Last Frost Day

Frost history / Weeping Water, NE

Weeping Water, NE: frost dates by year

Last spring and first fall frost at NOAA station USC00259090, 1951 to 2010, measured from daily minimum temperatures.

Elevation 1,100 ft, 40.864, -96.141. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 29Oct 6
EarliestApr 6 (1977)Sep 18 (1981)
LatestMay 23 (1963)Oct 29 (1973)
Trend1.1 days earlier per decadelittle change (less than half a day per decade)
Years with data5955

At 28°F (hard freeze) the median last spring date is Apr 15 and the median first fall date is Oct 19.

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 301960197019801990200020101951: Apr 221952: Apr 151953: Apr 201954: May 91955: Apr 81956: Apr 301957: Apr 141958: Apr 291959: May 151960: May 121961: May 21962: Apr 171963: May 231964: Apr 221965: Apr 281966: May 21967: May 31968: May 51969: May 101970: May 21971: Apr 291973: May 31974: Apr 161975: Apr 201976: May 31977: Apr 61978: May 31979: May 121980: May 91981: May 111982: Apr 281983: May 151984: May 81985: Apr 91986: Apr 221987: Apr 121988: Apr 281989: May 71990: Apr 281991: Apr 241992: May 61993: Apr 91994: May 11995: May 21996: Apr 301997: May 131998: Apr 181999: Apr 182000: Apr 122001: Apr 242002: Apr 252003: Apr 102004: May 32005: May 42006: Apr 92007: Apr 152008: May 42009: Apr 282010: Apr 9

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 111960197019801990200020101951: Sep 281952: Oct 61953: Sep 221954: Oct 161955: Oct 81956: Sep 301957: Oct 181958: Oct 11959: Oct 91960: Oct 191961: Sep 281962: Oct 241963: Oct 291964: Oct 51965: Sep 241966: Oct 111967: Sep 281968: Oct 41969: Oct 141970: Oct 101972: Sep 301973: Oct 291976: Oct 61977: Oct 31978: Oct 71979: Oct 51980: Sep 261981: Sep 181982: Oct 141983: Sep 231984: Sep 261985: Oct 11986: Oct 131987: Oct 31988: Oct 51989: Sep 241990: Oct 101991: Sep 191992: Oct 111993: Oct 91994: Oct 121995: Sep 221996: Oct 221997: Oct 211999: Oct 42000: Oct 62001: Oct 62002: Oct 132003: Sep 292004: Oct 22005: Oct 72006: Oct 112007: Oct 252008: Oct 162009: Oct 4

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