Last Frost Day

Frost history / Ft Kent, ME

Ft Kent, ME: frost dates by year

Last spring and first fall frost at NOAA station USC00172878, 1951 to 2025, measured from daily minimum temperatures.

Elevation 610 ft, 47.239, -68.612. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 26Sep 19
EarliestMay 10 (1989)Aug 28 (1978)
LatestJun 15 (2018)Oct 18 (2023)
Trend1.4 days earlier per decade1.6 days later per decade
Years with data6270

At 28°F (hard freeze) the median last spring date is May 11 and the median first fall date is Oct 5.

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)

Apr 30May 15May 30Jun 14Jun 2919601970198019902000201020201951: Jun 101952: May 191953: Jun 51954: May 281956: May 301958: Jun 101962: May 281963: May 251964: Jun 11965: Jun 151966: May 151969: May 271971: Jun 51972: May 261973: May 151974: Jun 71975: Jun 91976: May 161977: May 281978: May 231979: Jun 71980: May 241981: Jun 11982: Jun 41984: May 191985: Jun 51986: Jun 121988: Jun 81989: May 101990: May 261991: May 231992: Jun 51993: May 191994: May 281996: May 271997: May 271998: Jun 21999: May 152000: Jun 122001: May 182002: Jun 152005: May 252006: May 102007: May 242008: May 122009: May 232010: May 162011: May 122012: May 182013: May 292014: May 142015: May 232016: May 182017: May 212018: Jun 152019: May 282020: Jun 42021: May 302022: May 242023: May 232024: May 112025: May 22

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 2719601970198019902000201020201951: Sep 191952: Sep 81953: Sep 111954: Sep 121955: Sep 91957: Oct 11958: Sep 201961: Sep 171962: Sep 71963: Sep 141964: Sep 121965: Sep 121966: Sep 191968: Oct 61969: Sep 141970: Oct 61971: Sep 271972: Sep 201973: Sep 141974: Sep 171975: Sep 151976: Sep 251977: Sep 81978: Aug 281979: Sep 201980: Sep 241981: Oct 61982: Aug 301983: Sep 141984: Sep 81985: Sep 121986: Aug 291987: Sep 41988: Sep 161989: Sep 41990: Sep 81991: Sep 221992: Sep 241993: Sep 171994: Sep 191995: Sep 81996: Sep 221997: Sep 221998: Oct 41999: Oct 42000: Sep 62001: Sep 292002: Aug 312003: Oct 42005: Sep 252006: Sep 222007: Sep 142008: Sep 192009: Sep 172010: Oct 42011: Oct 62012: Sep 202013: Sep 172014: Sep 192015: Sep 252016: Sep 262017: Oct 12018: Sep 102019: Sep 182020: Sep 182021: Oct 52022: Sep 192023: Oct 182024: Oct 92025: Sep 20

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
2025May 22Sep 20May 5Oct 10
2024May 11Oct 9May 10Oct 17
2023May 23Oct 18May 23Oct 24
2022May 24Sep 19May 9Oct 3
2021May 30Oct 5May 29Oct 29
2020Jun 4Sep 18Jun 1Sep 18
2019May 28Sep 18May 3Oct 6
2018Jun 15Sep 10May 20Sep 24
2017May 21Oct 1Apr 26Oct 3
2016May 18Sep 26May 11Oct 4
2015May 23Sep 25May 3Oct 4
2014May 14Sep 19May 13Sep 19
2013May 29Sep 17May 20Oct 6
2012May 18Sep 20May 7Oct 9
2011May 12Oct 6May 2Oct 7
2010May 16Oct 4May 13Oct 14
2009May 23Sep 17May 19Sep 26
2008May 12Sep 19May 3Sep 19
2007May 24Sep 14May 23Oct 26
2006May 10Sep 22May 8Oct 6
2005May 25Sep 25May 14Oct 29
2003no dataOct 4no dataOct 10
2002Jun 15Aug 31May 14Sep 29
2001May 18Sep 29May 6Oct 8
2000Jun 12Sep 6May 20Sep 27
1999May 15Oct 4Apr 30Oct 5
1998Jun 2Oct 4Apr 28Oct 7
1997May 27Sep 22May 9Oct 19
1996May 27Sep 22May 9Oct 4
1995no dataSep 8no dataSep 24
1994May 28Sep 19May 28Oct 12
1993May 19Sep 17Apr 29Oct 5
1992Jun 5Sep 24May 20Sep 24
1991May 23Sep 22May 19Oct 9
1990May 26Sep 8May 4Oct 21
1989May 10Sep 4Apr 30Sep 25
1988Jun 8Sep 16May 15Oct 5
1987no dataSep 4no dataSep 28
1986Jun 12Aug 29May 9Sep 28
1985Jun 5Sep 12May 29Sep 12
1984May 19Sep 8May 18Sep 17
1983no dataSep 14no dataSep 16
1982Jun 4Aug 30May 23Oct 7
1981Jun 1Oct 6May 21Oct 12
1980May 24Sep 24May 5Sep 25
1979Jun 7Sep 20Apr 25Sep 20
1978May 23Aug 28May 23Sep 17
1977May 28Sep 8May 8Oct 8
1976May 16Sep 25May 5Oct 12
1975Jun 9Sep 15May 10Sep 15
1974Jun 7Sep 17May 7Sep 25
1973May 15Sep 14May 8Sep 21
1972May 26Sep 20May 11Oct 11
1971Jun 5Sep 27May 15Sep 28
1970no dataOct 6no dataOct 20
1969May 27Sep 14May 2Oct 5
1968no dataOct 6no dataOct 7
1966May 15Sep 19May 15Sep 29
1965Jun 15Sep 12May 15Sep 28
1964Jun 1Sep 12May 15Sep 13
1963May 25Sep 14May 17Sep 24
1962May 28Sep 7May 22Sep 22
1961no dataSep 17no dataOct 22
1958Jun 10Sep 20May 15Oct 14
1957no dataOct 1no dataOct 14
1956May 30no dataMay 27no data
1955no dataSep 9no dataOct 1
1954May 28Sep 12Apr 30Oct 8
1953Jun 5Sep 11May 3Sep 24
1952May 19Sep 8May 6Sep 15
1951Jun 10Sep 19May 18Oct 10

"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.