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Humid subtropical climate

Köppen Code: Cfa
C : Temperate
f : Without dry season
a : Hot summer


View Index of Climate Classification Types

Temperate, without dry season, hot summer.

With the coldest month averaging above 0 °C (32 °F), at least one month's average temperature above 22 °C (71.6 °F), and at least four months averaging above 10 °C (50 °F).

No significant precipitation difference between seasons. No dry months in the summer.

Related climatic classifications
CfbTemperate oceanic climate
CfcSubpolar oceanic climate
CsaHot-summer Mediterranean climate
CsbWarm-summer Mediterranean climate
CscCool-summer Mediterranean climate
CwaMonsoon-influenced humid subtropical climate
CwbSubtropical highland climate or temperate oceanic climate with dry winters
CwcCold subtropical highland climate or subpolar oceanic climate with dry winters


A selection of mineral localities found in this climate zone.

Morefield Mine (Morefield pegmatite), Winterham, Amelia Co., Virginia, USA
Hunting Hill quarry (Rockville Crushed Stone Quarry; Travilah Quarry; Rockville Quarry; Bardon Stone Quarry; Aggregate Industries Quarry), Rockville, Montgomery Co., Maryland, USA
Graves Mountain, Lincoln Co., Georgia, USA
Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
Bingham Canyon Mine (Bingham Canyon deposit; Kennecott Mine; Bingham Copper Mine; Utah Copper Mine), Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
Emerald Valley Mine, Hiddenite, Alexander Co., North Carolina, USA
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
Magnet Cove, Hot Spring Co., Arkansas, USA
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine), Ozark-Mahoning group, Cave-in-Rock, Cave-in-Rock Sub-District, Hardin Co., Illinois, USA
French Creek Mines, St. Peters, Warwick Township, Chester Co., Pennsylvania, USA
Millington Quarry (Morris County Crushed Stone Co. Quarry; Tilcon Quarry), Bernards Township, Somerset Co., New Jersey, USA
Cornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon Co., Pennsylvania, USA
Mt Ida, Montgomery Co., Arkansas, USA
Hiddenite, Alexander Co., North Carolina, USA
Keystone Trap Rock Quarry, Cornog, Wallace Township, Chester Co., Pennsylvania, USA
Martin Marietta Quarry (11th Avenue Quarry), Hickory, Catawba Co., North Carolina, USA
Upper New Street Quarry (Burger's Quarry), Paterson, Passaic Co., New Jersey, USA
Prospect Park Quarry (Sowerbutt Quarry; Vandermade Quarry; Warren Brothers Quarry), Prospect Park, Passaic Co., New Jersey, USA
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
Laurel Hill (Snake Hill; Penitentiary Quarry), Secaucus, Hudson Co., New Jersey, USA
Indian Mountain, Cherokee Co., Alabama, USA
Picher Field, Tri-State District, Ottawa Co., Oklahoma, USA
LCA Mine (Lithium Corporation of America Mine), Bessemer City, Gaston Co., North Carolina, USA
Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
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