Last Frost Day

Frost history / Trenton Falls, NY

Trenton Falls, NY: frost dates by year

Last spring and first fall frost at NOAA station USC00308578, 1951 to 2025, measured from daily minimum temperatures.

Elevation 800 ft, 43.276, -75.157. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 14Oct 11
EarliestApr 22 (2011)Sep 19 (2020)
LatestJun 4 (2019)Nov 1 (2023)
Trend0.7 days earlier per decade2.7 days later per decade
Years with data2119

At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Oct 27.

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 1419601970198019902000201020201951: May 151952: May 101953: May 41954: May 281955: May 171956: May 252011: Apr 222012: Apr 302013: May 152014: May 72015: May 242016: May 102017: May 42018: Apr 272019: Jun 42020: May 142021: May 142022: May 92023: May 262024: Apr 262025: May 19

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 301953: Sep 241954: Sep 241955: Sep 232011: Oct 62012: Oct 132013: Oct 292014: Oct 112015: Oct 172016: Oct 112017: Oct 172018: Oct 182019: Oct 52020: Sep 192021: Oct 232022: Oct 112023: Nov 12024: Oct 172025: Oct 1

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 19Oct 1May 19Oct 1
2024Apr 26Oct 17Apr 26Oct 27
2023May 26Nov 1May 26Nov 2
2022May 9Oct 11May 1Nov 9
2021May 14Oct 23Apr 23Nov 5
2020May 14Sep 19May 13Nov 1
2019Jun 4Oct 5Jun 4Nov 4
2018Apr 27Oct 18Apr 22Oct 26
2017May 4Oct 17Apr 10Nov 8
2016May 10Oct 11Apr 29Oct 27
2015May 24Oct 17Apr 27Oct 18
2014May 7Oct 11Apr 25Nov 14
2013May 15Oct 29May 14Oct 29
2012Apr 30Oct 13Apr 30Oct 13
2011Apr 22Oct 6Apr 22Oct 28
1956May 25no dataMay 25no data
1955May 17Sep 23May 17Oct 23
1954May 28Sep 24Apr 10Oct 7
1953May 4Sep 24Apr 18Oct 8
1952May 10no dataMay 9no data
1951May 15Sep 30Mar 28Oct 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.