Last Frost Day

Frost history / Grand Lake Stream, ME

Grand Lake Stream, ME: frost dates by year

Last spring and first fall frost at NOAA station USC00173261, 1962 to 2025, measured from daily minimum temperatures.

Elevation 290 ft, 45.178, -67.774. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Oct 3
EarliestApr 19 (2021)Sep 1 (2002)
LatestJun 13 (2002)Nov 2 (2014)
Trend1.6 days earlier per decade2.3 days later per decade
Years with data5557

At 28°F (hard freeze) the median last spring date is May 2 and the median first fall date is Oct 15.

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 291970198019902000201020201962: May 231963: May 241964: May 61965: May 151966: May 141967: May 221970: May 251971: Apr 281972: May 261973: May 91975: May 91976: May 51977: May 161978: May 231979: Apr 251980: May 61981: May 191984: May 81985: May 231986: May 151987: May 191988: May 151989: Apr 301990: May 251991: May 191992: May 261993: May 141994: May 41996: May 281997: Jun 21998: May 131999: May 172000: Jun 122001: Jun 22002: Jun 132003: May 172004: May 122005: May 142006: May 92007: May 232008: May 152009: Apr 212010: May 132011: Apr 232012: Apr 292013: May 282014: Apr 302015: May 22016: Apr 302017: Apr 252019: May 12020: May 142021: Apr 192023: May 202025: May 1

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 111970198019902000201020201962: Oct 151964: Sep 211966: Oct 141967: Sep 261969: Oct 51970: Oct 181971: Sep 271972: Oct 21973: Sep 221974: Sep 191975: Oct 51976: Sep 291977: Sep 251978: Sep 141979: Sep 201980: Sep 251981: Sep 271983: Sep 261984: Sep 221985: Oct 81986: Oct 61987: Sep 261988: Oct 71989: Sep 251990: Oct 181991: Sep 291992: Sep 241993: Oct 11994: Oct 21995: Sep 161996: Oct 51997: Sep 281998: Sep 241999: Oct 52000: Sep 252001: Sep 32002: Sep 12003: Oct 42004: Oct 62005: Oct 212006: Oct 72007: Oct 152009: Sep 262010: Oct 142011: Oct 72012: Oct 132013: Oct 262014: Nov 22015: Oct 172016: Oct 152017: Oct 32019: Oct 62020: Sep 212022: Oct 32023: 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
2025May 1Oct 10Apr 18Nov 3
2024no dataOct 17no dataOct 28
2023May 20Oct 31May 20Nov 1
2022no dataOct 3no dataNov 16
2021Apr 19no dataApr 5no data
2020May 14Sep 21May 10Oct 12
2019May 1Oct 6Apr 18Nov 7
2017Apr 25Oct 3Apr 5Nov 8
2016Apr 30Oct 15Apr 29Nov 1
2015May 2Oct 17Apr 20Oct 27
2014Apr 30Nov 2Apr 19Nov 4
2013May 28Oct 26May 23Oct 29
2012Apr 29Oct 13Apr 7Nov 7
2011Apr 23Oct 7Apr 16Oct 29
2010May 13Oct 14Apr 17Nov 3
2009Apr 21Sep 26Apr 20Oct 15
2008May 15no dataMay 3no data
2007May 23Oct 15May 4Oct 26
2006May 9Oct 7May 8Oct 15
2005May 14Oct 21May 14Oct 22
2004May 12Oct 6Apr 29Oct 6
2003May 17Oct 4May 16Oct 19
2002Jun 13Sep 1Jun 8Sep 1
2001Jun 2Sep 3May 25Sep 30
2000Jun 12Sep 25May 30Sep 27
1999May 17Oct 5May 16Oct 7
1998May 13Sep 24Apr 29Oct 6
1997Jun 2Sep 28Jun 2Oct 3
1996May 28Oct 5May 15Oct 6
1995no dataSep 16no dataSep 29
1994May 4Oct 2Apr 29Oct 12
1993May 14Oct 1Apr 29Oct 6
1992May 26Sep 24May 8Oct 2
1991May 19Sep 29May 19Oct 1
1990May 25Oct 18Apr 25Oct 21
1989Apr 30Sep 25Apr 26Sep 28
1988May 15Oct 7Apr 28Oct 7
1987May 19Sep 26May 2Oct 12
1986May 15Oct 6May 10Oct 8
1985May 23Oct 8May 21Oct 18
1984May 8Sep 22May 3Oct 6
1983no dataSep 26no dataOct 11
1981May 19Sep 27May 19Oct 12
1980May 6Sep 25May 3Oct 11
1979Apr 25Sep 20Apr 22Oct 12
1978May 23Sep 14May 1Oct 4
1977May 16Sep 25May 9Oct 24
1976May 5Sep 29Apr 25Oct 20
1975May 9Oct 5Apr 23Oct 5
1974no dataSep 19no dataOct 10
1973May 9Sep 22Apr 21Oct 29
1972May 26Oct 2May 13Oct 4
1971Apr 28Sep 27Apr 16Oct 20
1970May 25Oct 18Apr 16Oct 20
1969no dataOct 5no dataOct 22
1967May 22Sep 26Apr 27Oct 21
1966May 14Oct 14May 12Oct 27
1965May 15no dataMay 5no data
1964May 6Sep 21May 2Nov 2
1963May 24no dataApr 27no data
1962May 23Oct 15May 9Oct 16

"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.