Last Frost Day

Frost history / Fulton Oswego Co Ap, NY

Fulton Oswego Co Ap, NY: frost dates by year

Last spring and first fall frost at NOAA station USW00054773, 1997 to 2024, measured from daily minimum temperatures.

Elevation 475 ft, 43.350, -76.385. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 7Oct 12
EarliestApr 13 (2000)Sep 28 (2000)
LatestMay 23 (2015)Oct 29 (2007)
Trend2.4 days later per decade3.9 days later per decade
Years with data2727

At 28°F (hard freeze) the median last spring date is Apr 22 and the median first fall date is Nov 2.

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 302000201020201998: Apr 291999: Apr 252000: Apr 132001: Apr 302002: May 202003: May 42004: Apr 282005: May 132006: May 72007: May 142008: May 52009: May 192010: May 132011: Apr 222012: Apr 302013: May 142014: May 72015: May 232016: May 102017: May 102018: Apr 232019: Apr 292020: May 142021: May 72022: May 12023: May 182024: Apr 26

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 112000201020201997: Oct 21998: Oct 51999: Oct 72000: Sep 282001: Oct 82002: Oct 142003: Oct 72004: Oct 52005: Oct 202006: Oct 122007: Oct 292008: Oct 72009: Oct 122010: Oct 132011: Oct 62012: Oct 122013: Oct 282014: Oct 122015: Oct 172016: Oct 112017: Oct 172018: Oct 192019: Oct 52020: Oct 162021: Oct 242022: Oct 32024: Oct 17

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
2024Apr 26Oct 17Apr 26Nov 3
2023May 18no dataApr 27no data
2022May 1Oct 3Apr 18Oct 28
2021May 7Oct 24Apr 3Nov 6
2020May 14Oct 16May 14Nov 12
2019Apr 29Oct 5Apr 29Nov 7
2018Apr 23Oct 19Apr 23Nov 14
2017May 10Oct 17Mar 30Nov 7
2016May 10Oct 11Apr 10Nov 7
2015May 23Oct 17Apr 25Oct 27
2014May 7Oct 12Apr 17Nov 14
2013May 14Oct 28Apr 21Oct 29
2012Apr 30Oct 12Apr 30Oct 13
2011Apr 22Oct 6Apr 22Oct 28
2010May 13Oct 13Mar 27Nov 2
2009May 19Oct 12Apr 13Oct 18
2008May 5Oct 7Apr 15Oct 19
2007May 14Oct 29Apr 11Oct 29
2006May 7Oct 12Apr 29Nov 21
2005May 13Oct 20Apr 22Nov 12
2004Apr 28Oct 5Apr 16Nov 3
2003May 4Oct 7Apr 14Nov 8
2002May 20Oct 14Apr 27Oct 23
2001Apr 30Oct 8Apr 29Oct 9
2000Apr 13Sep 28Apr 13Oct 23
1999Apr 25Oct 7Apr 25Oct 19
1998Apr 29Oct 5Apr 27Nov 13
1997no dataOct 2no dataOct 19

"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.