Last Frost Day

Frost history / Lawrence, MA

Lawrence, MA: frost dates by year

Last spring and first fall frost at NOAA station USC00194105, 1951 to 2025, measured from daily minimum temperatures.

Elevation 50 ft, 42.699, -71.166. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 19Oct 21
EarliestMar 28 (2012)Sep 20 (2008)
LatestMay 27 (1994)Nov 15 (2014)
Trend0.7 days earlier per decade1.2 days later per decade
Years with data6469

At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Nov 4.

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: Apr 51952: Apr 171953: Apr 141954: Apr 101955: Apr 91956: May 91957: Apr 161958: Apr 121959: Apr 231960: Apr 201961: Apr 201962: Apr 211963: Apr 141964: May 21965: Apr 211966: May 101967: May 91968: Apr 121969: Apr 231970: Apr 201971: Apr 241972: Apr 271973: Apr 151974: Apr 251975: Apr 301976: Apr 131977: Apr 111978: Apr 101979: Apr 201980: Apr 181981: Apr 221982: Apr 231983: Apr 231984: Apr 231985: Apr 181986: Apr 131987: Apr 291991: Apr 201992: May 81994: May 271997: Apr 301998: Apr 261999: May 142000: Apr 272001: Apr 212003: Apr 192005: Apr 162006: Apr 112009: Apr 182010: Mar 292012: Mar 282013: Apr 72014: Apr 182015: Apr 132016: Apr 162017: Apr 42018: Apr 162019: Apr 112020: Apr 122021: Apr 222022: Apr 192023: Apr 102024: Apr 282025: Apr 18

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 131952: Oct 201953: Oct 91954: Oct 81955: Oct 231956: Oct 111957: Nov 101958: Oct 141959: Oct 191960: Oct 221961: Oct 161962: Oct 251963: Nov 41964: Oct 81965: Oct 61966: Oct 131967: Oct 231968: Nov 11969: Oct 231970: Oct 201971: Nov 61972: Oct 101973: Nov 51974: Oct 131975: Oct 311976: Oct 191977: Oct 241978: Oct 161979: Oct 111980: Oct 241981: Oct 111982: Oct 231983: Oct 211984: Oct 61985: Oct 221986: Oct 111990: Oct 211991: Sep 291992: Oct 51993: Oct 111995: Nov 51996: Oct 41997: Oct 191998: Oct 271999: Oct 82000: Sep 292001: Oct 202002: Oct 222003: Oct 42004: Nov 12005: Oct 222006: Nov 32007: Oct 302008: Sep 202009: Nov 72010: Nov 12011: Oct 282012: Oct 152013: Oct 262014: Nov 152015: Oct 182016: Oct 282017: Nov 92018: Oct 192019: Nov 32020: Oct 302021: Nov 32023: Nov 32024: Oct 17

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 18no dataApr 10no data
2024Apr 28Oct 17Apr 26Nov 15
2023Apr 10Nov 3Mar 31Nov 3
2022Apr 19no dataMar 31no data
2021Apr 22Nov 3Apr 3Nov 3
2020Apr 12Oct 30Mar 23Oct 31
2019Apr 11Nov 3Apr 2Nov 10
2018Apr 16Oct 19Apr 6Nov 15
2017Apr 4Nov 9Mar 26Nov 9
2016Apr 16Oct 28Apr 7Nov 29
2015Apr 13Oct 18Apr 3Oct 28
2014Apr 18Nov 15Mar 28Nov 16
2013Apr 7Oct 26Mar 25Nov 5
2012Mar 28Oct 15Mar 28Nov 6
2011no dataOct 28no dataOct 29
2010Mar 29Nov 1Mar 28Nov 1
2009Apr 18Nov 7Apr 10Nov 18
2008no dataSep 20no dataNov 1
2007no dataOct 30no dataNov 6
2006Apr 11Nov 3Apr 10Dec 5
2005Apr 16Oct 22Mar 22Nov 12
2004no dataNov 1no dataNov 1
2003Apr 19Oct 4Apr 18Oct 25
2002no dataOct 22no dataNov 2
2001Apr 21Oct 20Apr 20Oct 31
2000Apr 27Sep 29Mar 23Oct 29
1999May 14Oct 8Apr 25Nov 8
1998Apr 26Oct 27Mar 23Nov 6
1997Apr 30Oct 19Apr 30Oct 23
1996no dataOct 4no dataOct 5
1995no dataNov 5no dataNov 6
1994May 27no dataMay 27no data
1993no dataOct 11no dataOct 14
1992May 8Oct 5May 8Nov 8
1991Apr 20Sep 29Mar 31Oct 21
1990no dataOct 21no dataOct 30
1987Apr 29no dataApr 3no data
1986Apr 13Oct 11Mar 25Nov 5
1985Apr 18Oct 22Apr 10Nov 16
1984Apr 23Oct 6Apr 11Oct 6
1983Apr 23Oct 21Mar 31Nov 14
1982Apr 23Oct 23Apr 13Oct 25
1981Apr 22Oct 11Apr 16Nov 13
1980Apr 18Oct 24Mar 20Nov 3
1979Apr 20Oct 11Apr 9Nov 17
1978Apr 10Oct 16Apr 4Oct 18
1977Apr 11Oct 24Apr 10Nov 15
1976Apr 13Oct 19Apr 13Oct 27
1975Apr 30Oct 31Apr 10Nov 23
1974Apr 25Oct 13Apr 11Oct 19
1973Apr 15Nov 5Apr 14Nov 7
1972Apr 27Oct 10Apr 9Oct 17
1971Apr 24Nov 6Apr 17Nov 9
1970Apr 20Oct 20Apr 6Oct 28
1969Apr 23Oct 23Apr 3Oct 23
1968Apr 12Nov 1Apr 6Nov 21
1967May 9Oct 23Apr 13Nov 7
1966May 10Oct 13Apr 27Oct 31
1965Apr 21Oct 6Apr 3Nov 10
1964May 2Oct 8Apr 6Nov 1
1963Apr 14Nov 4Apr 6Nov 25
1962Apr 21Oct 25Apr 4Oct 30
1961Apr 20Oct 16Mar 23Nov 11
1960Apr 20Oct 22Apr 11Oct 22
1959Apr 23Oct 19Apr 14Oct 22
1958Apr 12Oct 14Apr 9Nov 22
1957Apr 16Nov 10Apr 16Nov 11
1956May 9Oct 11Apr 13Oct 11
1955Apr 9Oct 23Apr 9Oct 23
1954Apr 10Oct 8Apr 5Nov 8
1953Apr 14Oct 9Mar 12Nov 5
1952Apr 17Oct 20Mar 17Oct 21
1951Apr 5Oct 13Mar 27Nov 4

"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.