Last Frost Day

Frost history / Niagara Falls, NY

Niagara Falls, NY: frost dates by year

Last spring and first fall frost at NOAA station USC00305840, 2000 to 2018, measured from daily minimum temperatures.

Elevation 588 ft, 43.086, -78.972. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 28Oct 18
EarliestApr 9 (2017)Oct 7 (2008)
LatestMay 23 (2015)Nov 8 (2017)
Trend3.4 days earlier per decade19.7 days later per decade
Years with data1111

At 28°F (hard freeze) the median last spring date is Apr 14 and the median first fall date is Oct 30.

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 30200020102000: Apr 282009: May 112010: May 102011: Apr 222012: Apr 302013: Apr 222014: Apr 242015: May 232016: Apr 282017: Apr 92018: Apr 30

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26200020102008: Oct 72009: Oct 122010: Oct 132011: Oct 282012: Oct 132013: Oct 292014: Oct 122015: Oct 182016: Nov 72017: Nov 82018: Oct 18

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
2018Apr 30Oct 18Apr 21Nov 10
2017Apr 9Nov 8Mar 24Nov 10
2016Apr 28Nov 7Apr 14Nov 23
2015May 23Oct 18Apr 5Oct 19
2014Apr 24Oct 12Apr 18Nov 8
2013Apr 22Oct 29Apr 21Oct 29
2012Apr 30Oct 13Apr 29Oct 13
2011Apr 22Oct 28Apr 2Oct 28
2010May 10Oct 13May 10Nov 2
2009May 11Oct 12Apr 14Oct 19
2008no dataOct 7no dataOct 30
2000Apr 28no dataApr 13no data

"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.