Last Frost Day

Frost history / E Brimfield Lake, MA

E Brimfield Lake, MA: frost dates by year

Last spring and first fall frost at NOAA station USC00192107, 1962 to 2025, measured from daily minimum temperatures.

Elevation 700 ft, 42.110, -72.127. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 4Oct 9
EarliestApr 15 (2017)Sep 15 (1963)
LatestJun 6 (1964)Nov 5 (1971)
Trend3.2 days earlier per decade3.2 days later per decade
Years with data5757

At 28°F (hard freeze) the median last spring date is Apr 21 and the median first fall date is Oct 21.

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 141970198019902000201020201963: May 241964: Jun 61965: Apr 251966: May 161967: May 251968: May 271969: May 271970: May 71971: May 151972: May 261973: Apr 301974: May 81975: Apr 301976: May 131977: May 101978: May 41979: Apr 221980: Apr 221981: May 191982: Apr 301983: May 181984: May 181985: May 101986: May 101987: May 141988: Apr 261989: Apr 291990: Apr 181992: May 71993: Apr 301994: May 31995: May 21996: May 151997: Apr 271998: May 141999: May 12000: May 32001: May 82003: May 182004: May 52005: May 132006: Apr 302011: Apr 232012: May 12013: May 152014: Apr 212015: Apr 252016: Apr 282017: Apr 152018: Apr 242019: Apr 292020: May 102021: Apr 232022: Apr 222023: May 182024: Apr 272025: Apr 19

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 111970198019902000201020201962: Sep 221963: Sep 151964: Sep 161965: Sep 281966: Sep 271967: Oct 71968: Oct 61969: Oct 161970: Oct 171971: Nov 51972: Oct 101973: Oct 221974: Sep 241975: Oct 31976: Oct 111977: Oct 81978: Sep 261979: Sep 201980: Sep 281981: Oct 111982: Oct 111983: Oct 211984: Oct 61985: Oct 121986: Oct 71987: Oct 91988: Oct 71989: Sep 281991: Sep 291992: Sep 241993: Sep 201994: Oct 121995: Oct 181996: Oct 41997: Oct 121998: Oct 61999: Oct 72000: Sep 292001: Oct 72002: Oct 152003: Oct 32004: Oct 62011: Oct 282012: Oct 132013: Oct 262014: Oct 212015: Oct 172016: Oct 112017: Nov 12018: Oct 192019: Oct 52020: Oct 182021: Oct 292022: Oct 292023: Oct 312024: Oct 172025: Oct 10

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

"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.