New York weather in September
There's a real gradient across New York in September: 76° afternoons in New York City, 66° in Lake Placid.
Based on 3 weather stations. Three stations, three different New Yorks — the city, the lake-effect west, and the Adirondack high ground, which can sit a season apart in the same week.
New York City
Highs near 76°, nights around 62°, and 4.3 in of rain in a typical September.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| New York City | 76° / 62° | 6 | Summer loosens its grip and walking stops being a chore. |
Western New York
Highs near 73°, nights around 52°, and 3.3 in of rain in a typical September.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Niagara Falls | 73° / 52° | 6 | Crowds thin, boats still running, and the air turns crisp. |
The Adirondacks
Highs near 66°, nights around 45°, and 3.9 in of rain in a typical September.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Lake Placid | 66° / 45° | 9 | First color on the summits and the clearest air going. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.