Last Frost Day

Frost history / Nantucket Mem Ap, MA

Nantucket Mem Ap, MA: frost dates by year

Last spring and first fall frost at NOAA station USW00014756, 1951 to 2024, measured from daily minimum temperatures.

Elevation 45 ft, 41.253, -70.061. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 16Nov 6
EarliestMar 22 (1953)Oct 6 (1965)
LatestMay 27 (1972)Dec 6 (2009)
Trendlittle change (less than half a day per decade)little change (less than half a day per decade)
Years with data5856

At 28°F (hard freeze) the median last spring date is Mar 29 and the median first fall date is Nov 22.

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 1419601970198019902000201020201951: Mar 271952: Apr 101953: Mar 221954: Apr 101955: Apr 81956: Apr 131957: May 171958: Apr 101959: Apr 151960: Apr 111961: Apr 201962: Apr 181963: Apr 141964: Apr 261965: Apr 251966: Apr 231967: May 71968: Apr 121969: Apr 211970: Apr 201971: Apr 241972: May 271973: Apr 211974: Apr 261975: Apr 301976: Apr 131977: Apr 111978: Apr 171979: Apr 111980: Apr 11981: Apr 161982: Apr 151998: Apr 121999: Apr 32000: May 12001: May 72002: Apr 252003: Apr 182004: Apr 162005: Apr 172006: Apr 222007: Apr 202008: Apr 162009: Apr 162010: Apr 142011: Apr 102012: Apr 62013: Apr 72014: Apr 102015: May 32016: Apr 62017: Apr 192018: Apr 112019: Apr 22020: Apr 212022: Mar 302023: Apr 32024: Apr 26

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 1119601970198019902000201020201951: Nov 181952: Nov 91953: Nov 291954: Nov 101955: Oct 231956: Nov 101957: Nov 111958: Nov 231959: Oct 301960: Nov 81961: Nov 111962: Oct 301963: Nov 261964: Nov 31965: Oct 61966: Oct 271967: Nov 61968: Nov 211969: Oct 231970: Oct 191971: Nov 91972: Oct 101973: Oct 211974: Oct 221975: Oct 311976: Oct 121977: Oct 231978: Nov 251979: Oct 271980: Nov 91981: Nov 241998: Nov 41999: Nov 92000: Nov 222002: Oct 312003: Oct 252004: Oct 282005: Nov 182006: Nov 42007: Nov 112008: Oct 232009: Dec 62010: Nov 22011: Nov 32012: Nov 62013: Oct 262014: Nov 152015: Nov 182016: Nov 232017: Nov 102018: Oct 312019: Nov 82021: Nov 62022: Nov 152023: Nov 22024: Nov 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
2024Apr 26Nov 4Mar 22Dec 3
2023Apr 3Nov 2Apr 3Nov 25
2022Mar 30Nov 15Mar 29Dec 5
2021no dataNov 6no datanone
2020Apr 21no dataMar 15no data
2019Apr 2Nov 8Apr 2Nov 13
2018Apr 11Oct 31Apr 3Nov 22
2017Apr 19Nov 10Mar 24Nov 10
2016Apr 6Nov 23Mar 7Dec 4
2015May 3Nov 18Apr 2none
2014Apr 10Nov 15Mar 27Nov 16
2013Apr 7Oct 26Apr 7Nov 24
2012Apr 6Nov 6Mar 11Dec 6
2011Apr 10Nov 3Mar 25Dec 11
2010Apr 14Nov 2Mar 28Dec 8
2009Apr 16Dec 6Mar 24Dec 8
2008Apr 16Oct 23Apr 16Nov 20
2007Apr 20Nov 11Apr 7Nov 24
2006Apr 22Nov 4Mar 29Dec 5
2005Apr 17Nov 18Mar 27Nov 19
2004Apr 16Oct 28Mar 23Nov 27
2003Apr 18Oct 25Apr 6Oct 25
2002Apr 25Oct 31Mar 23Nov 3
2001May 7no dataMar 12no data
2000May 1Nov 22Mar 18Nov 23
1999Apr 3Nov 9Mar 27Dec 13
1998Apr 12Nov 4Mar 17Nov 19
1982Apr 15no dataApr 8no data
1981Apr 16Nov 24Mar 26Nov 26
1980Apr 1Nov 9Mar 16Nov 9
1979Apr 11Oct 27Apr 8Dec 3
1978Apr 17Nov 25Mar 25Nov 26
1977Apr 11Oct 23Apr 9Oct 24
1976Apr 13Oct 12Apr 12Nov 3
1975Apr 30Oct 31Apr 12Nov 1
1974Apr 26Oct 22Apr 20Oct 28
1973Apr 21Oct 21Apr 21Nov 8
1972May 27Oct 10May 27Oct 20
1971Apr 24Nov 9Apr 9Dec 2
1970Apr 20Oct 19Mar 31Nov 25
1969Apr 21Oct 23Apr 13Nov 22
1968Apr 12Nov 21Apr 7Nov 27
1967May 7Nov 6Apr 13Nov 6
1966Apr 23Oct 27Apr 17Oct 30
1965Apr 25Oct 6Apr 1Nov 2
1964Apr 26Nov 3Apr 6Nov 22
1963Apr 14Nov 26Apr 1Nov 26
1962Apr 18Oct 30Mar 20Nov 20
1961Apr 20Nov 11Mar 23Nov 12
1960Apr 11Nov 8Mar 26Dec 1
1959Apr 15Oct 30Apr 15Nov 18
1958Apr 10Nov 23Mar 30Nov 28
1957May 17Nov 11Mar 18Nov 11
1956Apr 13Nov 10Mar 29Nov 11
1955Apr 8Oct 23Mar 29Nov 21
1954Apr 10Nov 10Apr 10Nov 10
1953Mar 22Nov 29Mar 22Dec 17
1952Apr 10Nov 9Mar 20Nov 9
1951Mar 27Nov 18Mar 23Nov 20

"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.