Last Frost Day

Frost history / Johnson 2 N, VT

Johnson 2 N, VT: frost dates by year

Last spring and first fall frost at NOAA station USC00434290, 2012 to 2025, measured from daily minimum temperatures.

Elevation 980 ft, 44.658, -72.679. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Sep 25
EarliestApr 27 (2024)Sep 15 (2014)
LatestMay 27 (2013)Oct 23 (2021)
Trend18.5 days earlier per decade11.9 days later per decade
Years with data1114

At 28°F (hard freeze) the median last spring date is Apr 27 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)

Apr 15Apr 30May 15May 30Jun 1420202013: May 272014: May 82015: May 232016: May 172017: May 202018: May 122019: May 92020: May 142021: May 82024: Apr 272025: May 2

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1120202012: Sep 202013: Sep 172014: Sep 152015: Oct 42016: Sep 262017: Oct 22018: Sep 232019: Sep 192020: Sep 192021: Oct 232022: Sep 302023: Sep 302024: Oct 172025: 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
2025May 2Sep 21May 1Oct 10
2024Apr 27Oct 17Apr 27Oct 17
2023no dataSep 30no dataOct 31
2022no dataSep 30no dataOct 3
2021May 8Oct 23Apr 27Oct 30
2020May 14Sep 19May 13Sep 19
2019May 9Sep 19Apr 12Oct 5
2018May 12Sep 23Apr 24Oct 18
2017May 20Oct 2Apr 15Oct 17
2016May 17Sep 26Apr 30Oct 15
2015May 23Oct 4Apr 25Oct 15
2014May 8Sep 15Apr 20Sep 19
2013May 27Sep 17May 15Oct 24
2012no dataSep 20no dataOct 13

"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.