Last Frost Day

Frost history / Island Pond, VT

Island Pond, VT: frost dates by year

Last spring and first fall frost at NOAA station USC00434120, 1990 to 2025, measured from daily minimum temperatures.

Elevation 1,200 ft, 44.813, -71.890. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 24Sep 24
EarliestApr 27 (2024)Sep 2 (1991)
LatestJul 2 (1992)Oct 25 (2021)
Trend5.6 days earlier per decade2.1 days later per decade
Years with data3433

At 28°F (hard freeze) the median last spring date is May 11 and the median first fall date is Oct 9.

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 29Jul 1419902000201020201991: May 211992: Jul 21993: Jun 51994: Jun 101995: May 171996: May 301998: May 271999: May 152000: Jun 52001: Jun 12002: May 252003: Jun 32004: May 312005: May 212006: May 82007: Jun 72008: May 302009: May 262010: May 132011: May 122012: May 182013: May 272014: May 192015: May 232016: May 182017: May 212018: May 182019: May 122020: Jun 22021: May 302022: May 242023: May 262024: Apr 272025: May 12

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119902000201020201990: Oct 171991: Sep 21992: Sep 131993: Sep 201994: Oct 21995: Sep 111998: Sep 242000: Sep 272001: Sep 152002: Sep 292003: Oct 62004: Sep 202005: Sep 242006: Oct 62007: Oct 172008: Sep 192009: Sep 262010: Sep 212011: Sep 172012: Sep 282013: Sep 172014: Sep 152015: Sep 262016: Sep 252017: Oct 12018: Sep 92019: Sep 182020: Sep 152021: Oct 252022: Sep 302023: Oct 132024: Oct 82025: 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 12Sep 20May 1Oct 2
2024Apr 27Oct 8Apr 27Oct 13
2023May 26Oct 13May 18Oct 31
2022May 24Sep 30May 9Oct 3
2021May 30Oct 25May 7Oct 25
2020Jun 2Sep 15May 14Sep 19
2019May 12Sep 18May 9Oct 5
2018May 18Sep 9May 13Oct 18
2017May 21Oct 1May 4Oct 17
2016May 18Sep 25May 17Oct 11
2015May 23Sep 26May 15Oct 3
2014May 19Sep 15May 8Sep 19
2013May 27Sep 17May 15Oct 23
2012May 18Sep 28May 7Oct 13
2011May 12Sep 17May 1Oct 29
2010May 13Sep 21May 13Oct 10
2009May 26Sep 26May 26Oct 12
2008May 30Sep 19May 2Oct 6
2007Jun 7Oct 17May 14Oct 29
2006May 8Oct 6Apr 30Oct 14
2005May 21Sep 24May 14Oct 21
2004May 31Sep 20May 8Oct 6
2003Jun 3Oct 6May 4Oct 7
2002May 25Sep 29May 22Oct 8
2001Jun 1Sep 15May 6Oct 9
2000Jun 5Sep 27May 20Sep 29
1999May 15no dataMay 14no data
1998May 27Sep 24Apr 29Oct 4
1996May 30no dataMay 14no data
1995May 17Sep 11May 9Sep 16
1994Jun 10Oct 2May 29Oct 12
1993Jun 5Sep 20Apr 29Sep 20
1992Jul 2Sep 13May 25Sep 24
1991May 21Sep 2May 21Sep 22
1990no dataOct 17no dataOct 17

"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.