Frost dates in Oswego County, New York

Mountain lake below cliffs and forest in the Adirondacks, New York — Photo: Yinan Chen, Public Domain, via Wikimedia Commons

The average last spring frost in Oswego County falls Apr 22 to May 12 and the average first fall frost Oct 5 to Oct 29, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 6a. Places: Altmar, Central Square, Constantia, Fulton, Hannibal, Lacona. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIP	Place	Last spring frost	First fall frost	Zone
13028		May 12	Oct 5	5b
13036	Central Square	May 2	Oct 16	5b
13044	Constantia	May 12	Oct 5	5b
13069	Fulton	May 2	Oct 16	6a
13074	Hannibal	Apr 27	Oct 24	6a
13076		May 2	Oct 16	5b
13083	Lacona	May 10	Oct 14	5a
13103		May 4	Oct 11	5b
13114	Mexico	May 2	Oct 16	6a
13115	Minetto	Apr 22	Oct 29	6a
13121		May 2	Oct 16	6a
13126	Oswego	Apr 22	Oct 29	6a
13131	Parish	May 12	Oct 5	5b
13132	Sand Ridge	Apr 27	Oct 24	6a
13135	Phoenix	Apr 27	Oct 24	6a
13142	Pulaski	May 10	Oct 14	5b
13144		May 10	Oct 14	5a
13145	Sandy Creek	May 10	Oct 14	5b
13167		May 12	Oct 5	5b
13302	Altmar	May 12	Oct 5	5b
13437		May 12	Oct 5	4b
13493		May 12	Oct 5	5a

Nearby counties

Onondaga County Cayuga County Oneida County Madison County Jefferson County Lewis County

All New York counties · Download New York frost dates (CSV)

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