Last Frost Day

Frost history / Tully Lake, MA

Tully Lake, MA: frost dates by year

Last spring and first fall frost at NOAA station USC00198573, 1951 to 2025, measured from daily minimum temperatures.

Elevation 680 ft, 42.639, -72.224. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 13Oct 3
EarliestApr 15 (2017)Aug 30 (1965)
LatestJun 16 (1961)Nov 4 (2021)
Trend4.2 days earlier per decade4.9 days later per decade
Years with data6158

At 28°F (hard freeze) the median last spring date is Apr 25 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 2919601970198019902000201020201951: Jun 81952: May 191953: Jun 31954: May 271955: May 201956: May 291957: May 291958: Jun 71959: May 251960: May 31961: Jun 161962: May 131963: May 251964: Jun 61965: May 301966: May 141967: May 171968: May 81969: May 271970: May 71971: May 151972: May 261973: Apr 301974: May 51975: Apr 301976: May 131977: May 151978: May 41979: May 31980: May 101981: May 191982: May 51983: May 181984: May 191985: May 101986: May 101987: May 151988: May 41989: Apr 291990: May 121993: Apr 302003: May 182005: May 132006: Apr 302007: May 142008: May 22011: Apr 302012: Apr 302013: May 152014: Apr 252015: Apr 252016: Apr 282017: Apr 152018: Apr 232019: Apr 172020: May 142021: Apr 222022: Apr 302023: May 182024: Apr 262025: Apr 21

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 271952: Sep 281953: Sep 101954: Oct 71955: Sep 131956: Sep 101957: Sep 251958: Sep 121959: Sep 141960: Oct 21961: Sep 181962: Sep 71963: Sep 141964: Sep 161965: Aug 301966: Sep 261967: Oct 71968: Oct 61969: Oct 151970: Oct 51971: Sep 251972: Oct 21973: Sep 211974: Sep 241975: Sep 151976: Sep 251977: Oct 71978: Sep 261979: Sep 201980: Sep 281981: Sep 301982: Oct 111983: Oct 161984: Sep 281985: Oct 71986: Sep 171987: Sep 261989: Sep 282002: Oct 162004: Oct 62005: Oct 212006: Oct 132007: Oct 132011: Oct 62012: Oct 132013: Oct 242014: Oct 132015: Oct 182016: Oct 152017: Oct 172018: Oct 192019: Nov 22020: Oct 312021: Nov 42022: Oct 92023: Nov 22024: Oct 152025: 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 21Oct 10Apr 18Oct 10
2024Apr 26Oct 15Mar 26Nov 3
2023May 18Nov 2Apr 10Nov 2
2022Apr 30Oct 9Apr 18Nov 16
2021Apr 22Nov 4Apr 5Nov 6
2020May 14Oct 31Mar 23Oct 31
2019Apr 17Nov 2Apr 11Nov 8
2018Apr 23Oct 19Apr 12Oct 22
2017Apr 15Oct 17Apr 3Nov 9
2016Apr 28Oct 15Apr 7Oct 27
2015Apr 25Oct 18Apr 12Oct 19
2014Apr 25Oct 13Apr 18Nov 3
2013May 15Oct 24Apr 15Oct 27
2012Apr 30Oct 13Apr 8Oct 13
2011Apr 30Oct 6Apr 23Oct 31
2008May 2no dataMay 1no data
2007May 14Oct 13Apr 12Oct 30
2006Apr 30Oct 13Apr 26Oct 27
2005May 13Oct 21May 13Nov 3
2004no dataOct 6no dataOct 6
2003May 18no dataApr 25no data
2002no dataOct 16no dataOct 16
1993Apr 30no dataApr 9no data
1990May 12no dataApr 15no data
1989Apr 29Sep 28Apr 26Oct 10
1988May 4no dataApr 26no data
1987May 15Sep 26Apr 27Oct 13
1986May 10Sep 17May 4Oct 7
1985May 10Oct 7May 10Oct 13
1984May 19Sep 28May 18Oct 6
1983May 18Oct 16Apr 23Oct 21
1982May 5Oct 11Apr 23Oct 11
1981May 19Sep 30Apr 23Oct 11
1980May 10Sep 28Apr 24Oct 10
1979May 3Sep 20Apr 21Oct 15
1978May 4Sep 26May 4Oct 9
1977May 15Oct 7Apr 15Oct 8
1976May 13Sep 25Apr 13Oct 12
1975Apr 30Sep 15Apr 29Oct 31
1974May 5Sep 24May 5Oct 19
1973Apr 30Sep 21Apr 15Oct 22
1972May 26Oct 2Apr 28Oct 10
1971May 15Sep 25Apr 28Nov 6
1970May 7Oct 5Apr 20Oct 18
1969May 27Oct 15May 6Oct 23
1968May 8Oct 6May 8Oct 6
1967May 17Oct 7May 13Oct 23
1966May 14Sep 26May 3Oct 13
1965May 30Aug 30Apr 25Sep 28
1964Jun 6Sep 16May 3Sep 16
1963May 25Sep 14May 13Sep 24
1962May 13Sep 7May 13Sep 21
1961Jun 16Sep 18May 31Oct 16
1960May 3Oct 2Apr 20Oct 2
1959May 25Sep 14May 18Sep 19
1958Jun 7Sep 12May 3Oct 6
1957May 29Sep 25Apr 16Sep 27
1956May 29Sep 10May 26Sep 21
1955May 20Sep 13May 18Sep 23
1954May 27Oct 7Apr 29Oct 7
1953Jun 3Sep 10Apr 22Sep 24
1952May 19Sep 28May 17Oct 9
1951Jun 8Sep 27May 14Sep 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.