Last Frost Day

Frost history / Somerset 2 N, KY

Somerset 2 N, KY: frost dates by year

Last spring and first fall frost at NOAA station USC00157510, 1951 to 2019, measured from daily minimum temperatures.

Elevation 1,020 ft, 37.117, -84.617. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 20Oct 17
EarliestMar 23 (1967)Sep 27 (1991)
LatestMay 27 (1961)Nov 9 (1956)
Trend0.8 days earlier per decade0.7 days later per decade
Years with data6156

At 28°F (hard freeze) the median last spring date is Apr 8 and the median first fall date is Oct 27.

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 30Jun 141960197019801990200020101951: Apr 181952: Mar 241953: Apr 211954: May 101955: Apr 91956: Apr 211957: May 61958: Apr 131959: Apr 241960: Apr 191961: May 271962: Apr 201963: May 21964: Apr 101965: Apr 51966: May 101967: Mar 231968: May 61969: Apr 201970: Apr 81971: May 41972: Apr 91973: Apr 291974: Apr 251975: Apr 161976: May 91977: Apr 101978: Apr 221979: Apr 291980: Apr 201981: Mar 251982: Apr 241983: Apr 211984: Apr 191985: Apr 101987: Apr 291988: Apr 291989: May 121990: Apr 181991: Apr 21992: Apr 291993: Apr 231997: May 161999: Apr 132000: Apr 102001: Apr 192002: May 192003: Apr 232004: Apr 162006: Apr 112007: Apr 162008: Apr 302010: Apr 182011: Mar 282012: Apr 132013: Apr 252014: Apr 172015: May 12016: Apr 102018: Apr 52019: Apr 1

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 261960197019801990200020101951: Oct 91952: Oct 41953: Oct 81954: Oct 201955: Oct 251956: Nov 91957: Oct 201958: Oct 111959: Oct 191960: Oct 211961: Oct 41962: Oct 241963: Oct 301964: Oct 61965: Oct 131966: Oct 161967: Oct 131968: Oct 41969: Oct 181970: Oct 171971: Nov 41972: Oct 201973: Oct 171974: Oct 31975: Oct 311977: Oct 121978: Oct 81979: Oct 141980: Oct 61981: Oct 241982: Oct 171983: Nov 51984: Oct 21985: Oct 71987: Oct 41988: Oct 51989: Oct 91990: Oct 191991: Sep 271992: Oct 191993: Sep 301997: Oct 221998: Oct 231999: Oct 212000: Oct 72001: Oct 72008: Oct 202009: Oct 182010: Oct 302011: Oct 232012: Oct 112013: Oct 252014: Nov 12015: Oct 182018: Oct 212019: Nov 2

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
2019Apr 1Nov 2Apr 1Nov 2
2018Apr 5Oct 21Mar 22Nov 17
2016Apr 10no dataMar 5no data
2015May 1Oct 18May 1Nov 14
2014Apr 17Nov 1Apr 17Nov 2
2013Apr 25Oct 25Apr 2Oct 25
2012Apr 13Oct 11Mar 10Nov 5
2011Mar 28Oct 23Feb 27Nov 11
2010Apr 18Oct 30Mar 27Nov 7
2009no dataOct 18no dataNov 28
2008Apr 30Oct 20Apr 15Oct 29
2007Apr 16no dataApr 16no data
2006Apr 11no dataMar 28no data
2004Apr 16no dataMar 23no data
2003Apr 23no dataMar 31no data
2002May 19no dataMar 28no data
2001Apr 19Oct 7Apr 19Oct 18
2000Apr 10Oct 7Apr 10Oct 7
1999Apr 13Oct 21Mar 28Oct 25
1998no dataOct 23no dataOct 23
1997May 16Oct 22Apr 18Oct 23
1993Apr 23Sep 30Apr 22Nov 1
1992Apr 29Oct 19Apr 29Oct 19
1991Apr 2Sep 27Mar 31Oct 8
1990Apr 18Oct 19Apr 13Oct 26
1989May 12Oct 9Apr 13Nov 4
1988Apr 29Oct 5Apr 20Oct 8
1987Apr 29Oct 4Apr 10Oct 4
1985Apr 10Oct 7Apr 10Nov 8
1984Apr 19Oct 2Apr 2Nov 7
1983Apr 21Nov 5Apr 20Nov 5
1982Apr 24Oct 17Apr 7Nov 5
1981Mar 25Oct 24Mar 25Oct 24
1980Apr 20Oct 6Mar 22Oct 13
1979Apr 29Oct 14Apr 7Oct 14
1978Apr 22Oct 8Mar 22Nov 25
1977Apr 10Oct 12Apr 7Nov 12
1976May 9no dataMay 4no data
1975Apr 16Oct 31Apr 16Nov 15
1974Apr 25Oct 3Apr 10Oct 3
1973Apr 29Oct 17Apr 14Oct 17
1972Apr 9Oct 20Apr 9Oct 20
1971May 4Nov 4Apr 8Nov 5
1970Apr 8Oct 17Apr 3Oct 17
1969Apr 20Oct 18Apr 1Oct 18
1968May 6Oct 4Apr 16Oct 5
1967Mar 23Oct 13Mar 19Oct 26
1966May 10Oct 16May 10Nov 3
1965Apr 5Oct 13Mar 22Oct 25
1964Apr 10Oct 6Apr 10Oct 7
1963May 2Oct 30May 2Oct 30
1962Apr 20Oct 24Apr 19Oct 24
1961May 27Oct 4Apr 14Oct 27
1960Apr 19Oct 21Apr 11Oct 21
1959Apr 24Oct 19Mar 28Oct 28
1958Apr 13Oct 11Apr 8Oct 30
1957May 6Oct 20May 6Oct 20
1956Apr 21Nov 9Apr 21Nov 9
1955Apr 9Oct 25Apr 8Oct 25
1954May 10Oct 20Apr 2Oct 30
1953Apr 21Oct 8Mar 16Oct 30
1952Mar 24Oct 4Mar 17Oct 17
1951Apr 18Oct 9Apr 17Nov 3

"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.