Last Frost Day

Frost history / Enosburg Falls, VT

Enosburg Falls, VT: frost dates by year

Last spring and first fall frost at NOAA station USC00432769, 1951 to 2012, measured from daily minimum temperatures.

Elevation 420 ft, 44.909, -72.808. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 22Sep 23
EarliestApr 29 (1989)Aug 31 (1965)
LatestJun 19 (1956)Oct 20 (2005)
Trend3.0 days earlier per decade3.0 days later per decade
Years with data5754

At 28°F (hard freeze) the median last spring date is May 7 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 15Apr 30May 15May 30Jun 14Jun 291960197019801990200020101951: May 141952: May 281953: Jun 31954: May 271955: May 211956: Jun 191957: May 191958: Jun 71959: May 251960: Jun 81962: May 281963: May 251964: May 211965: Jun 31966: Jun 21967: Jun 11968: May 271969: May 271972: Jun 111973: Jun 31974: May 81975: May 101976: May 101977: May 161978: May 81979: May 81980: May 281981: May 201982: May 221983: Jun 91984: May 181985: May 291986: Jun 31987: May 191988: Jun 81989: Apr 291990: May 241991: May 201992: May 261993: May 231994: May 141995: May 91996: May 261997: May 271998: Apr 301999: May 142000: May 202001: May 152002: May 252004: May 72006: May 82007: May 222008: May 72009: May 262010: May 132011: May 12012: May 12

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 271960197019801990200020101951: Sep 301952: Sep 81953: Sep 231954: Oct 71955: Sep 81956: Sep 101957: Sep 281958: Sep 291959: Sep 141960: Sep 171961: Sep 171962: Sep 211963: Sep 141964: Sep 131965: Aug 311967: Sep 111969: Sep 191972: Sep 201973: Sep 211974: Sep 231976: Aug 311977: Sep 121978: Sep 81979: Sep 201980: Sep 241981: Oct 11982: Oct 31983: Sep 151985: Sep 131986: Sep 181987: Oct 41988: Sep 161989: Sep 251990: Oct 31991: Sep 221992: Sep 241993: Sep 201994: Oct 11995: Sep 111996: Sep 241997: Sep 241998: Sep 241999: Oct 52000: Sep 292001: Sep 302002: Oct 82003: Oct 72004: Oct 52005: Oct 202006: Oct 72007: Oct 132008: Sep 192009: Sep 202010: 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
2012May 12no dataApr 30no data
2011May 1no dataApr 22no data
2010May 13Oct 10May 13Oct 19
2009May 26Sep 20Apr 24Oct 12
2008May 7Sep 19May 2Oct 7
2007May 22Oct 13May 3Oct 17
2006May 8Oct 7Apr 29Oct 22
2005no dataOct 20no dataOct 21
2004May 7Oct 5May 7Oct 19
2003no dataOct 7no dataOct 20
2002May 25Oct 8Apr 27Oct 15
2001May 15Sep 30May 6Oct 9
2000May 20Sep 29Apr 25Sep 29
1999May 14Oct 5May 13Oct 8
1998Apr 30Sep 24Apr 27Oct 6
1997May 27Sep 24May 5Oct 12
1996May 26Sep 24May 7Oct 4
1995May 9Sep 11May 7Sep 29
1994May 14Oct 1May 14Oct 12
1993May 23Sep 20May 14Sep 20
1992May 26Sep 24May 25Sep 24
1991May 20Sep 22May 19Sep 30
1990May 24Oct 3May 4Oct 20
1989Apr 29Sep 25Apr 29Sep 28
1988Jun 8Sep 16Apr 26Sep 29
1987May 19Oct 4May 19Oct 5
1986Jun 3Sep 18Jun 3Oct 10
1985May 29Sep 13May 9Oct 21
1984May 18no dataMay 18no data
1983Jun 9Sep 15May 18Oct 10
1982May 22Oct 3May 5Oct 11
1981May 20Oct 1May 19Oct 1
1980May 28Sep 24May 5Sep 29
1979May 8Sep 20May 7Oct 11
1978May 8Sep 8May 1Sep 26
1977May 16Sep 12May 15Oct 8
1976May 10Aug 31May 1Oct 12
1975May 10no dataMay 1no data
1974May 8Sep 23May 5Sep 23
1973Jun 3Sep 21May 7Sep 21
1972Jun 11Sep 20May 11Oct 2
1969May 27Sep 19May 27Sep 20
1968May 27no dataMay 8no data
1967Jun 1Sep 11May 23Oct 7
1966Jun 2no dataMay 14no data
1965Jun 3Aug 31May 14Sep 28
1964May 21Sep 13Apr 26Sep 19
1963May 25Sep 14May 24Sep 14
1962May 28Sep 21May 12Oct 14
1961no dataSep 17no dataOct 17
1960Jun 8Sep 17Apr 29Oct 2
1959May 25Sep 14May 18Sep 16
1958Jun 7Sep 29May 15Oct 2
1957May 19Sep 28May 17Sep 28
1956Jun 19Sep 10May 26Sep 27
1955May 21Sep 8Apr 20Sep 23
1954May 27Oct 7Apr 26Oct 7
1953Jun 3Sep 23Apr 19Sep 24
1952May 28Sep 8May 5Oct 10
1951May 14Sep 30May 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.