Last Frost Day

Frost history / Brockton, MA

Brockton, MA: frost dates by year

Last spring and first fall frost at NOAA station USC00190860, 1953 to 2025, measured from daily minimum temperatures.

Elevation 75 ft, 42.047, -71.008. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 2Oct 8
EarliestMar 28 (2010)Sep 14 (1978)
LatestMay 31 (1961)Nov 14 (2022)
Trend3.9 days earlier per decade4.2 days later per decade
Years with data6671

At 28°F (hard freeze) the median last spring date is Apr 13 and the median first fall date is Oct 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 1419601970198019902000201020201954: Apr 131955: May 181956: May 261957: May 171958: May 31959: May 171961: May 311962: May 131963: May 241964: May 41966: May 141967: May 171968: May 271969: May 71970: May 301971: Apr 241972: May 271973: Apr 211974: May 81975: Apr 301976: Apr 151977: May 41978: May 21979: Apr 221980: Apr 201981: May 181982: Apr 301983: May 191984: May 81985: May 91986: Apr 141987: May 141988: May 91989: Apr 261991: Apr 141992: Apr 301993: Apr 191994: May 221996: May 151997: May 51998: Apr 292000: May 12001: May 72002: May 212003: May 192004: May 62005: May 132006: May 102007: May 72008: May 12009: Apr 202010: Mar 282011: Apr 162012: Apr 302013: Apr 222014: Apr 212015: Apr 122016: Apr 282017: Apr 92018: Apr 232019: Apr 52021: Apr 42022: Apr 182023: Apr 102024: Apr 262025: Apr 18

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201953: Sep 241954: Oct 81955: Oct 181956: Sep 191957: Sep 271958: Oct 71959: Oct 191960: Oct 51961: Oct 51962: Sep 251963: Sep 251964: Oct 121965: Sep 261966: Sep 261967: Sep 261968: Sep 301969: Sep 221970: Oct 51971: Sep 251972: Oct 101973: Sep 221974: Sep 241975: Sep 151976: Oct 111977: Oct 231978: Sep 141979: Sep 201980: Oct 101981: Oct 111982: Oct 181983: Oct 221984: Oct 61985: Oct 211986: Oct 71987: Oct 131988: Oct 91989: Sep 281990: Oct 271991: Sep 291992: Oct 11993: Oct 61995: Oct 171996: Oct 41997: Sep 251998: Oct 51999: Oct 82000: Sep 302001: Oct 82003: Oct 42004: Oct 42005: Oct 292006: Oct 132007: Oct 292008: Oct 212009: Oct 152010: Oct 232011: Oct 302012: Oct 132013: Oct 252014: Oct 202015: Oct 182016: Oct 272017: Nov 12018: Oct 192019: Oct 62020: Oct 302021: Nov 42022: Nov 142023: Nov 22024: Oct 292025: Nov 7

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 18Nov 7Apr 10Nov 18
2024Apr 26Oct 29Mar 22Nov 4
2023Apr 10Nov 2Apr 3Nov 12
2022Apr 18Nov 14Mar 29Nov 15
2021Apr 4Nov 4Apr 4Nov 6
2020no dataOct 30no dataOct 30
2019Apr 5Oct 6Apr 2Nov 4
2018Apr 23Oct 19Apr 11Oct 22
2017Apr 9Nov 1Mar 26Nov 9
2016Apr 28Oct 27Apr 9Nov 5
2015Apr 12Oct 18Apr 2Oct 19
2014Apr 21Oct 20Apr 10Nov 15
2013Apr 22Oct 25Apr 7Oct 26
2012Apr 30Oct 13Apr 6Nov 6
2011Apr 16Oct 30Apr 9Oct 31
2010Mar 28Oct 23Mar 28Nov 2
2009Apr 20Oct 15Apr 9Nov 7
2008May 1Oct 21Apr 9Oct 23
2007May 7Oct 29Apr 11Oct 29
2006May 10Oct 13Mar 30Nov 4
2005May 13Oct 29Apr 16Nov 11
2004May 6Oct 4Apr 30Oct 5
2003May 19Oct 4Apr 26Oct 24
2002May 21no dataApr 27no data
2001May 7Oct 8Apr 20Oct 19
2000May 1Sep 30Mar 23Nov 19
1999no dataOct 8no dataNov 8
1998Apr 29Oct 5Apr 12Oct 7
1997May 5Sep 25Apr 16Oct 22
1996May 15Oct 4May 14Oct 12
1995no dataOct 17no dataOct 18
1994May 22no dataApr 23no data
1993Apr 19Oct 6Apr 8Oct 11
1992Apr 30Oct 1Apr 29Oct 27
1991Apr 14Sep 29Apr 13Oct 21
1990no dataOct 27no dataOct 27
1989Apr 26Sep 28Apr 23Nov 4
1988May 9Oct 9Mar 23Oct 14
1987May 14Oct 13Apr 2Oct 15
1986Apr 14Oct 7Apr 13Oct 31
1985May 9Oct 21Apr 10Oct 30
1984May 8Oct 6May 3Oct 6
1983May 19Oct 22Mar 31Oct 31
1982Apr 30Oct 18Apr 23Oct 18
1981May 18Oct 11Apr 22Oct 13
1980Apr 20Oct 10Apr 18Oct 10
1979Apr 22Sep 20Apr 22Oct 15
1978May 2Sep 14May 1Oct 15
1977May 4Oct 23Apr 11Oct 24
1976Apr 15Oct 11Apr 13Oct 19
1975Apr 30Sep 15Apr 30Oct 31
1974May 8Sep 24May 8Sep 30
1973Apr 21Sep 22Apr 15Nov 7
1972May 27Oct 10Apr 28Oct 10
1971Apr 24Sep 25Apr 24Nov 5
1970May 30Oct 5Apr 20Oct 19
1969May 7Sep 22Apr 21Oct 16
1968May 27Sep 30May 8Oct 6
1967May 17Sep 26May 17Oct 8
1966May 14Sep 26Apr 12Sep 27
1965no dataSep 26no dataSep 27
1964May 4Oct 12May 3Oct 12
1963May 24Sep 25Apr 29Oct 10
1962May 13Sep 25Apr 25Oct 25
1961May 31Oct 5May 6Oct 16
1960no dataOct 5no dataOct 22
1959May 17Oct 19Apr 15Nov 18
1958May 3Oct 7Apr 10Oct 7
1957May 17Sep 27Apr 16Sep 29
1956May 26Sep 19May 25Oct 11
1955May 18Oct 18Apr 9Oct 23
1954Apr 13Oct 8Apr 13Oct 8
1953no dataSep 24no dataOct 9

"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 1991–2020 frost probabilities.