Last Frost Day

Frost history / Rutland, VT

Rutland, VT: frost dates by year

Last spring and first fall frost at NOAA station USC00436995, 1951 to 2025, measured from daily minimum temperatures.

Elevation 620 ft, 43.625, -72.978. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Sep 29
EarliestApr 18 (1955)Sep 8 (1976)
LatestJun 1 (2009)Nov 6 (1971)
Trendlittle change (less than half a day per decade)1.0 days later per decade
Years with data7372

At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Oct 11.

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 1419601970198019902000201020201951: May 141952: May 171953: May 41954: May 131955: Apr 181956: May 291957: May 171958: May 141959: May 181960: Apr 291961: May 311963: May 241964: Apr 271965: May 141966: May 141967: May 301968: May 81969: May 271970: Apr 201971: May 241972: May 121973: May 71974: May 71975: Apr 301976: May 91977: May 301978: May 41979: May 71980: May 111981: May 191982: May 51983: May 181984: May 181985: May 91987: May 161988: Apr 271989: May 51990: May 311991: May 191992: May 251993: Apr 281994: May 281995: May 91996: May 261997: May 281998: Apr 301999: May 162000: May 162001: Jun 12002: May 232003: May 172004: May 82005: May 132006: May 72007: May 222008: May 52009: Jun 12010: May 132011: May 62012: May 122013: May 152014: May 192015: May 242016: May 112017: May 52018: May 142019: May 92020: May 152021: May 72022: May 102023: May 262024: Apr 282025: Apr 29

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 301952: Sep 271953: Sep 241954: Oct 71955: Sep 221956: Sep 101957: Sep 251958: Sep 291959: Sep 171960: Oct 21961: Oct 51962: Sep 211964: Sep 161965: Sep 281966: Sep 271967: Oct 71968: Oct 61969: Oct 51970: Oct 61971: Nov 61972: Oct 21973: Sep 211974: Sep 241975: Sep 151976: Sep 81977: Oct 81978: Sep 261979: Sep 201980: Sep 291981: Sep 301982: Oct 51983: Sep 291984: Sep 261986: Oct 71988: Sep 291989: Sep 251990: Sep 181991: Sep 221992: Sep 241993: Sep 201994: Oct 31995: Sep 111996: Oct 41997: Sep 221998: Sep 241999: Oct 72000: Sep 272001: Sep 302002: Oct 92003: Oct 32004: Oct 42005: Oct 212006: Sep 302007: Oct 132008: Sep 192009: Sep 202010: Oct 102011: Oct 62012: Oct 82013: Oct 92014: Sep 192015: Oct 52016: Sep 252017: Oct 22018: Oct 142019: Sep 192020: Sep 192021: Oct 242022: Sep 302023: Oct 132024: Oct 132025: Sep 21

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 29Sep 21Apr 22Oct 10
2024Apr 28Oct 13Apr 28Oct 17
2023May 26Oct 13May 19Nov 2
2022May 10Sep 30May 1Oct 19
2021May 7Oct 24Apr 28Oct 24
2020May 15Sep 19May 15Sep 19
2019May 9Sep 19Apr 29Oct 5
2018May 14Oct 14Apr 24Oct 22
2017May 5Oct 2Apr 20Oct 17
2016May 11Sep 25May 10Oct 15
2015May 24Oct 5Apr 17Oct 18
2014May 19Sep 19May 7Oct 13
2013May 15Oct 9May 15Oct 26
2012May 12Oct 8Apr 30Oct 13
2011May 6Oct 6Apr 22Oct 28
2010May 13Oct 10May 13Oct 13
2009Jun 1Sep 20Apr 20Oct 12
2008May 5Sep 19May 1Oct 7
2007May 22Oct 13Apr 21Oct 29
2006May 7Sep 30Apr 30Oct 13
2005May 13Oct 21May 13Oct 22
2004May 8Oct 4Apr 21Oct 6
2003May 17Oct 3May 4Oct 19
2002May 23Oct 9Apr 27Oct 15
2001Jun 1Sep 30Apr 30Oct 9
2000May 16Sep 27May 3Sep 29
1999May 16Oct 7May 14Oct 7
1998Apr 30Sep 24Apr 29Oct 4
1997May 28Sep 22May 8Oct 12
1996May 26Oct 4May 7Oct 4
1995May 9Sep 11May 7Sep 29
1994May 28Oct 3May 14Oct 11
1993Apr 28Sep 20Apr 28Sep 20
1992May 25Sep 24May 7Oct 1
1991May 19Sep 22Apr 19Sep 30
1990May 31Sep 18May 12Sep 18
1989May 5Sep 25Apr 29Oct 5
1988Apr 27Sep 29Apr 26Oct 8
1987May 16no dataApr 27no data
1986no dataOct 7no dataOct 11
1985May 9no dataMay 9no data
1984May 18Sep 26May 3Oct 6
1983May 18Sep 29May 18Oct 20
1982May 5Oct 5Apr 23Oct 18
1981May 19Sep 30Apr 23Oct 11
1980May 11Sep 29Apr 22Oct 10
1979May 7Sep 20Apr 21Oct 11
1978May 4Sep 26Apr 30Oct 16
1977May 30Oct 8May 29Oct 8
1976May 9Sep 8Apr 13Oct 12
1975Apr 30Sep 15Apr 29Nov 1
1974May 7Sep 24May 5Oct 4
1973May 7Sep 21Apr 15Oct 28
1972May 12Oct 2Apr 28Oct 10
1971May 24Nov 6Apr 28Nov 6
1970Apr 20Oct 6Apr 20Oct 18
1969May 27Oct 5Apr 21Oct 23
1968May 8Oct 6May 8Nov 1
1967May 30Oct 7May 7Oct 23
1966May 14Sep 27May 11Oct 21
1965May 14Sep 28Apr 25Sep 28
1964Apr 27Sep 16Apr 12Sep 16
1963May 24no dataApr 28no data
1962no dataSep 21no dataOct 26
1961May 31Oct 5May 31Oct 16
1960Apr 29Oct 2Apr 20Oct 22
1959May 18Sep 17Apr 22Oct 19
1958May 14Sep 29Apr 27Oct 6
1957May 17Sep 25May 17Sep 27
1956May 29Sep 10May 25Oct 6
1955Apr 18Sep 22Apr 9Sep 23
1954May 13Oct 7Apr 10Oct 8
1953May 4Sep 24Apr 18Sep 24
1952May 17Sep 27May 5Oct 11
1951May 14Sep 30May 5Sep 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.