Last Frost Day

Frost history / Alcove Dam, NY

Alcove Dam, NY: frost dates by year

Last spring and first fall frost at NOAA station USC00300063, 1951 to 2025, measured from daily minimum temperatures.

Elevation 607 ft, 42.470, -73.927. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 13Oct 2
EarliestApr 16 (2017)Aug 25 (1971)
LatestJun 12 (1980)Nov 3 (2021)
Trend3.1 days earlier per decade5.0 days later per decade
Years with data5961

At 28°F (hard freeze) the median last spring date is Apr 26 and the median first fall date is Oct 13.

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 30Jun 14Jun 2919601970198019902000201020201952: May 171953: Jun 31955: Apr 241956: May 291957: May 171958: May 241959: May 181960: May 31961: May 311963: May 271964: May 41965: May 311966: May 101967: Jun 21969: May 281970: May 291971: Jun 11972: May 271973: Jun 31974: May 261975: May 81976: May 231977: May 101978: May 81979: May 31980: Jun 121981: May 201983: May 181984: May 181986: May 101989: Apr 261993: Apr 291997: May 291999: May 132000: May 162001: May 82002: May 222004: May 52005: May 132006: Apr 302007: May 162008: May 52009: May 192010: May 132011: Apr 232012: May 12013: May 152014: May 72015: Apr 262016: May 102017: Apr 162018: Apr 232019: Apr 292020: May 142021: Apr 232022: May 102023: May 182024: Apr 262025: Apr 22

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 301952: Oct 81953: Sep 141954: Sep 131955: Sep 231956: Sep 101957: Sep 271958: Oct 21959: Sep 181960: Oct 21962: Sep 211963: Sep 141964: Sep 141965: Aug 301966: Oct 31968: Sep 301969: Sep 211970: Oct 61971: Aug 251972: Sep 231973: Sep 211974: Sep 241975: Sep 151976: Sep 31977: Oct 71978: Sep 101979: Sep 201980: Sep 291981: Sep 101982: Oct 111984: Sep 71985: Oct 81988: Oct 71989: Sep 251991: Sep 281992: Oct 11993: Sep 201998: Oct 72000: Sep 292001: Oct 92002: Oct 152004: Oct 62005: Oct 212006: Oct 132007: Oct 292009: Oct 112010: Oct 172011: Oct 282012: Oct 132013: Oct 232014: Oct 122015: Oct 182016: Oct 112017: Nov 12018: Oct 182019: Oct 52020: Oct 182021: Nov 32022: Oct 92023: Oct 312024: 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
2025Apr 22no dataApr 18no data
2024Apr 26Oct 15Apr 8Nov 4
2023May 18Oct 31Apr 10Nov 2
2022May 10Oct 9Apr 21Nov 9
2021Apr 23Nov 3Apr 4Nov 4
2020May 14Oct 18Apr 23Oct 31
2019Apr 29Oct 5Apr 11Nov 3
2018Apr 23Oct 18Apr 23Oct 19
2017Apr 16Nov 1Apr 9Nov 8
2016May 10Oct 11Apr 11Oct 26
2015Apr 26Oct 18Apr 16Oct 19
2014May 7Oct 12Apr 20Oct 20
2013May 15Oct 23Apr 23Oct 26
2012May 1Oct 13Apr 30Oct 13
2011Apr 23Oct 28Apr 22Oct 31
2010May 13Oct 17Mar 28Oct 22
2009May 19Oct 11Apr 9Oct 15
2008May 5no dataMay 1no data
2007May 16Oct 29Apr 17Nov 3
2006Apr 30Oct 13Apr 29Oct 13
2005May 13Oct 21May 13Nov 3
2004May 5Oct 6Apr 16Nov 2
2002May 22Oct 15May 20Oct 15
2001May 8Oct 9Apr 26Oct 9
2000May 16Sep 29Apr 27Sep 29
1999May 13no dataApr 19no data
1998no dataOct 7no dataOct 7
1997May 29no dataApr 21no data
1993Apr 29Sep 20Apr 29Oct 1
1992no dataOct 1no dataOct 18
1991no dataSep 28no dataSep 30
1989Apr 26Sep 25Apr 26Oct 10
1988no dataOct 7no dataOct 14
1986May 10no dataApr 13no data
1985no dataOct 8no dataOct 12
1984May 18Sep 7May 3Oct 7
1983May 18no dataMay 18no data
1982no dataOct 11no dataOct 19
1981May 20Sep 10Apr 22Oct 11
1980Jun 12Sep 29Apr 22Oct 10
1979May 3Sep 20Apr 20Oct 11
1978May 8Sep 10May 4Oct 8
1977May 10Oct 7Apr 15Oct 8
1976May 23Sep 3May 13Oct 12
1975May 8Sep 15Apr 29Oct 3
1974May 26Sep 24Apr 27Sep 24
1973Jun 3Sep 21May 7Oct 22
1972May 27Sep 23May 6Oct 2
1971Jun 1Aug 25Apr 25Oct 13
1970May 29Oct 6Apr 13Oct 6
1969May 28Sep 21May 27Oct 16
1968no dataSep 30no dataOct 5
1967Jun 2no dataJun 1no data
1966May 10Oct 3May 10Oct 3
1965May 31Aug 30Apr 30Sep 28
1964May 4Sep 14Apr 27Sep 15
1963May 27Sep 14May 24Sep 24
1962no dataSep 21no dataSep 21
1961May 31no dataMay 6no data
1960May 3Oct 2May 2Oct 22
1959May 18Sep 18May 17Oct 19
1958May 24Oct 2May 10Oct 6
1957May 17Sep 27May 17Oct 22
1956May 29Sep 10May 25Sep 21
1955Apr 24Sep 23Apr 9Oct 23
1954no dataSep 13no dataOct 8
1953Jun 3Sep 14May 4Oct 8
1952May 17Oct 8May 5Oct 8
1951no dataSep 30no dataSep 30

"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.