USA · Climate data from NOAA
New York dresses for a 1°C–29°C / 34°F–84°F window across the months we cover. New York rewards practicality that still looks deliberate. You will walk more than you think, descend stairs, stand on a subway platform in weather that changes by the hour. The uniform tends toward layered neutrals and a very good pair of shoes.
Across the 8 months we cover: morning lows from 1°C / 34°F (December) to afternoon highs of 29°C / 84°F (July).
What to wear in New York in May guide: NOAA climate data (22°C / 72°F high, 12 rain days, 257 sunshine hours) and a city-tested capsule that walks 20,000 steps.
What to wear in New York in June guide: NOAA climate data (27°C / 81°F high, 11 rain days) and a rooftop-season capsule for early summer, humidity, and AC blasts.
What to wear in New York in July guide: NOAA climate data (29°C / 84°F high, 21°C / 70°F low, feels 35°C / 63°F+) and a minimal-layer capsule for peak summer humidity.
What to wear in New York in August guide: NOAA climate data (29°C / 84°F high, 66% humidity) — peak summer capsule for Hamptons exodus, rooftop season, and AC.
What to wear in New York in September: NOAA Central Park normals (76.2°F high, 62.3°F low), NYFW Sept 10-15, and a capsule for a month that opens in August, ends in October.
What to wear in New York in October: NOAA Central Park normals (64.5°F high, 51.4°F low), the city's best walking month, and foliage that lands late.
What to wear in New York in November: NOAA normals (12°C / 54°F days, 6°C / 43°F nights, 9 rain days), the 4:38pm sunset, and the coat the city switches to.
What to wear in New York in December: NOAA Central Park normals (44.3°F high, 33.8°F low, 4.9in of snow) and the month you stand outdoors more than any other.
The neighborhood you sleep in affects what reads as appropriate more than the calendar does. New York's style scene anchors on the districts below — each leaf page calls out the local register (smart-casual, undone, technical, party) so the capsule maps to the streets you'll actually walk on.
Every leaf page on this hub is built from four data layers: climate normals from NOAA; named-authority etiquette and style references (Vogue, Condé Nast Traveler, Business of Fashion, the relevant local press); resident write-ups and traveler-forum reports for the failure modes tourists get wrong; and the editorial avatar pool that visualises each capsule on a person rather than a moodboard. Every DO names a reason. Every DON'T names a failure mode. We retest before each seasonal refresh — the editorial-modified date at the bottom of each leaf is the receipt.
Climate numbers come from NOAA — the national meteorological service for USA. Daily highs and lows, rain days, and daylight hours are 1991–2020 normals, read at the Central Park (Belvedere Castle) station — the international standard, refreshed every decade. Capsule pieces and what-to-avoid notes are stress-tested against New York resident write-ups, named-stylist sources where the city has a documented uniform (Vogue Paris under Emmanuelle Alt for Paris, Vogue Japan and i-D Tokyo coverage for Tokyo, NYMag's The Cut for New York), and the failure modes locals actually flag in city forums and traveler reports.
Because the morning-low to afternoon-high swing inside one New York month already changes the silhouette — and the swing between months is much bigger than that. December mornings start at 1°C / 34°F; July afternoons hit 29°C / 84°F. A single packing list that tries to span both ends up wrong at both. Each month here is a different capsule, calibrated to the climate band that actually shows up on the ground.
8 so far: May, June, July, August, September, October, November, December. There is no cap on months per city — we are working through the calendar, and a month is only worth publishing when it has its own thesis, so no two adjacent months here share a capsule piece or an illustration. Months we haven't written yet are gaps in the schedule, not judgments that the month isn't worth covering.
The NOAA figures cited on every New York leaf are 1991–2020 normals, read at the Central Park (Belvedere Castle) station — the international standard, refreshed every decade. We restate the numbers as raw averages on the leaf pages ("29°C / 84°F afternoons") rather than the year range, so the figures don't read as stale. The next normals refresh covers 2001-2030 and lands in 2031 — we'll bump every page when it does.
Editorial rule, enforced in CI: every DO line names a specific reason ("merino sinks under a trench so a damp morning doesn't show through your knit"); every DON'T names a specific failure mode ("suede stains the first time light drizzle catches it"). We ban "timeless," "elevate your style," "must-have," and "effortless" — they're the giveaway phrases of generic AI fashion writing. If a sentence could open any city's guide, it gets cut. New York's guide reads like New York, not like a packing-list aggregator.