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IECC 2021 · PNNL

New York climate zones

New York’s 62 counties fall in 3 IECC 2021 climate zones: 4A (8), 5A (36), 6A (18).

Zone 4A: mixed-humid

Attic target R60 (ENERGY STAR)

Bronx County (Mixed-humid) · Kings County (Mixed-humid) · Nassau County (Mixed-humid) · New York County (Mixed-humid) · Queens County (Mixed-humid) · Richmond County (Mixed-humid) · Suffolk County (Mixed-humid) · Westchester County (Mixed-humid)

Zone 5A: cool-humid

Attic target R60 (ENERGY STAR)

Albany County (Cold) · Allegany County (Cold) · Broome County (Cold) · Cattaraugus County (Cold) · Cayuga County (Cold) · Chautauqua County (Cold) · Chemung County (Cold) · Columbia County (Cold) · Cortland County (Cold) · Dutchess County (Cold) · Erie County (Cold) · Genesee County (Cold) · Greene County (Cold) · Livingston County (Cold) · Monroe County (Cold) · Niagara County (Cold) · Onondaga County (Cold) · Ontario County (Cold) · Orange County (Cold) · Orleans County (Cold) · Oswego County (Cold) · Putnam County (Cold) · Rensselaer County (Cold) · Rockland County (Cold) · Saratoga County (Cold) · Schenectady County (Cold) · Schoharie County (Cold) · Schuyler County (Cold) · Seneca County (Cold) · Steuben County (Cold) · Tioga County (Cold) · Tompkins County (Cold) · Washington County (Cold) · Wayne County (Cold) · Wyoming County (Cold) · Yates County (Cold)

Zone 6A: cold-humid

Attic target R60 (ENERGY STAR)

Chenango County (Cold) · Clinton County (Cold) · Delaware County (Cold) · Essex County (Cold) · Franklin County (Cold) · Fulton County (Cold) · Hamilton County (Cold) · Herkimer County (Cold) · Jefferson County (Cold) · Lewis County (Cold) · Madison County (Cold) · Montgomery County (Cold) · Oneida County (Cold) · Otsego County (Cold) · St. Lawrence County (Cold) · Sullivan County (Cold) · Ulster County (Cold) · Warren County (Cold)