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Manhattan has a humid subtropical climate.
Hot, humid summers. Cool-to-cold winters. Rain in every month of the year — here's what that means in plain terms.
What this climate feels like
The four things a regular visitor actually wants to know:
Highs near 91°F in July. About 58 days a year above 90 °F.
Lows near 19°F in January. About 122 freezing nights a year.
About 36 in of rain a year, plus 18 in of snow. Snow falls through the winter months.
A roughly even mix of sun and cloud.
What "humid subtropical" means
Climate scientists sort every place on Earth into about 30 climate types, based on how hot, cold, wet and dry it is across the year. Manhattan's type — humid subtropical — sits in the broad family of mild, temperate climates. Despite the name, it does not mean tropical or frost-free: Manhattan still has cool-to-cold winters.
Researchers write climate types as a short letter code. Here is what each letter means:
Cities with the same climate as Manhattan
A humid subtropical climate (Cfa) — these recognizable cities share it. If you know one of them, you know roughly what to expect.
Manhattan sits near a climate boundary
This city sits right on the line between humid subtropical and the next type along. Different climate maps file it on different sides of that line; the lived weather doesn't change at the line — it's a naming boundary, not a wall.
Has Manhattan's climate type changed?
Stable — Manhattan's climate has held the same type between the 1971–2000 and 1991–2020 normals. The label is steady; the climate beneath it is still warming.
What this climate means for you
Warm-season grasses and broad-leaved evergreens thrive; gardens are productive but humidity brings fungal pressure. Frost is occasional, so tender perennials often overwinter.
Spring and autumn are pleasant; summer is hot and humid; winter is mild and a fine alternative to escaping cold further north.
Hot, sticky summers and mild winters — air conditioning runs hard from late spring to early autumn. Storm season needs preparation in coastal areas.
Where these numbers come from
The climate type and the month-by-month figures on this page are computed from Manhattan's measured 30-year climate normals (1991–2020) — the same official records behind Manhattan's main climate page, so the two always agree.
Long-range climate maps measure things slightly differently and can place a city in a neighbouring category. Where they differ, this page uses the measured station record as the climate today.
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Manhattan (NOAA GHCN station USC00144972), about 2 km from the city centre.