Last Frost Day

Frost history / Yorktown Hts 1W, NY

Yorktown Hts 1W, NY: frost dates by year

Last spring and first fall frost at NOAA station USC00309670, 1965 to 2016, measured from daily minimum temperatures.

Elevation 670 ft, 41.266, -73.797. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 18Oct 23
EarliestMar 28 (2010)Sep 28 (2000)
LatestMay 10 (1966)Nov 18 (2005)
Trend3.4 days earlier per decade1.6 days later per decade
Years with data4851

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Nov 6.

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 15197019801990200020101966: May 101967: May 71968: Apr 71969: Apr 201970: May 71971: Apr 251972: Apr 281973: Apr 141974: May 51975: Apr 221976: Apr 131977: May 91978: May 11979: Apr 111980: Apr 181981: Apr 221982: Apr 231983: Apr 201984: Apr 221985: Apr 111986: Apr 241987: Apr 21988: Apr 201989: Apr 241990: Apr 191991: Apr 121992: Apr 161993: Apr 61994: Apr 91995: Apr 171996: Apr 151997: Apr 191998: Apr 51999: Apr 232000: Apr 142002: Apr 82003: Apr 192004: Apr 72005: Apr 122006: Apr 92008: Apr 42009: Apr 142010: Mar 282011: Mar 302012: Apr 282013: Apr 212015: Apr 272016: Apr 18

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26197019801990200020101965: Oct 51966: Oct 301967: Oct 291968: Oct 311969: Oct 231970: Oct 171971: Nov 81972: Oct 101973: Nov 61974: Oct 31975: Oct 311976: Oct 181977: Oct 241978: Oct 91979: Oct 101980: Oct 231981: Oct 121982: Oct 231983: Oct 211984: Oct 61985: Oct 291986: Oct 111987: Oct 41988: Oct 91989: Nov 41990: Oct 271991: Oct 211992: Oct 11993: Oct 111994: Nov 111995: Nov 51996: Oct 51997: Oct 231998: Nov 41999: Oct 72000: Sep 282001: Oct 292002: Oct 142003: Oct 232004: Nov 42005: Nov 182006: Nov 32007: Nov 82008: Oct 302009: Oct 192010: Nov 12011: Oct 272012: Nov 62013: Nov 42015: Oct 182016: Oct 15

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
2016Apr 18Oct 15Apr 14Oct 27
2015Apr 27Oct 18Apr 26Oct 18
2013Apr 21Nov 4Apr 4Nov 4
2012Apr 28Nov 6Mar 28Nov 8
2011Mar 30Oct 27Mar 29Oct 29
2010Mar 28Nov 1Mar 28Nov 28
2009Apr 14Oct 19Apr 13Nov 7
2008Apr 4Oct 30Apr 4Nov 19
2007no dataNov 8no dataNov 24
2006Apr 9Nov 3Mar 22Dec 5
2005Apr 12Nov 18Mar 27Nov 19
2004Apr 7Nov 4Apr 6Nov 9
2003Apr 19Oct 23Apr 9Nov 9
2002Apr 8Oct 14Apr 8Oct 24
2001no dataOct 29no dataNov 13
2000Apr 14Sep 28Apr 10Oct 30
1999Apr 23Oct 7Mar 26Nov 8
1998Apr 5Nov 4Mar 25Nov 6
1997Apr 19Oct 23Apr 11Nov 12
1996Apr 15Oct 5Apr 9Nov 12
1995Apr 17Nov 5Apr 10Nov 9
1994Apr 9Nov 11Mar 26Nov 11
1993Apr 6Oct 11Apr 5Nov 8
1992Apr 16Oct 1Apr 14Oct 20
1991Apr 12Oct 21Apr 3Nov 6
1990Apr 19Oct 27Apr 13Oct 27
1989Apr 24Nov 4Apr 11Nov 4
1988Apr 20Oct 9Apr 16Oct 31
1987Apr 2Oct 4Apr 2Nov 11
1986Apr 24Oct 11Mar 25Oct 31
1985Apr 11Oct 29Apr 11Nov 16
1984Apr 22Oct 6Apr 10Nov 3
1983Apr 20Oct 21Mar 31Oct 21
1982Apr 23Oct 23Apr 9Oct 23
1981Apr 22Oct 12Apr 22Nov 12
1980Apr 18Oct 23Apr 17Oct 24
1979Apr 11Oct 10Apr 8Oct 27
1978May 1Oct 9Apr 10Nov 22
1977May 9Oct 24Apr 10Nov 13
1976Apr 13Oct 18Apr 13Oct 19
1975Apr 22Oct 31Apr 14Oct 31
1974May 5Oct 3Apr 11Oct 19
1973Apr 14Nov 6Apr 14Nov 10
1972Apr 28Oct 10Apr 9Oct 18
1971Apr 25Nov 8Apr 15Nov 8
1970May 7Oct 17Apr 12Oct 28
1969Apr 20Oct 23Apr 3Oct 23
1968Apr 7Oct 31Apr 6Nov 13
1967May 7Oct 29Apr 13Oct 30
1966May 10Oct 30Apr 10Oct 31
1965no dataOct 5no dataOct 29

"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.