Last Frost Day

Frost history / Atchison, KS

Atchison, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00140405, 1951 to 2008, measured from daily minimum temperatures.

Elevation 945 ft, 39.576, -95.111. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 12Oct 25
EarliestMar 23 (1981)Sep 28 (1951)
LatestMay 4 (1954)Nov 12 (2004)
Trend3.1 days earlier per decade0.9 days later per decade
Years with data5254

At 28°F (hard freeze) the median last spring date is Apr 2 and the median first fall date is Nov 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 16Mar 31Apr 15Apr 30May 15196019701980199020001951: Apr 231952: Apr 151953: Apr 201954: May 41955: Apr 71956: Apr 241957: Apr 141958: Apr 291959: Apr 131960: Apr 301961: Apr 181962: Apr 161963: May 11964: Apr 81966: Apr 211967: Apr 271970: Apr 61971: Apr 61972: Apr 81973: Apr 111974: Apr 81976: May 31977: Apr 61978: Apr 211979: Apr 61980: Apr 141981: Mar 231982: Apr 211983: Apr 181984: Mar 311985: Apr 91986: Apr 221987: Apr 51988: Apr 181989: Apr 111990: Apr 121991: Mar 301992: Apr 211993: Apr 51994: Apr 71995: Apr 51996: Apr 151997: Apr 141998: Mar 251999: Mar 262000: Apr 92001: Apr 12002: Apr 52004: Apr 122006: Mar 272007: Apr 102008: Apr 15

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26196019701980199020001951: Sep 281952: Oct 61953: Oct 271954: Oct 301955: Oct 241956: Nov 81957: Oct 181958: Nov 61959: Oct 281960: Oct 201961: Oct 201962: Oct 251963: Oct 291964: Oct 91965: Nov 11966: Oct 21969: Oct 141970: Oct 161971: Nov 61973: Nov 31974: Nov 61975: Oct 191976: Oct 81977: Nov 101978: Oct 71979: Oct 131980: Oct 251981: Oct 231982: Oct 211983: Nov 91984: Sep 291985: Oct 11986: Nov 91987: Oct 111988: Oct 261989: Oct 201991: Oct 191992: Nov 41993: Oct 101994: Oct 261995: Oct 211996: Oct 221997: Oct 271998: Nov 61999: Oct 182000: Oct 72001: Oct 272002: Nov 12003: Nov 52004: Nov 122005: Oct 262006: Oct 142007: Nov 12008: Oct 28

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

"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.