Yes

you do need a jacket based on the weather in New York (Gramercy Park), New York, United States 2 minutes ago

Why? Because it's cool. Pleasantly cool, but cool!
52°F11°C & Mostly Clear

Wind is 2 mph4 km/h from the East, gusting to 6 mph10 km/h
November 9
9am52°F11°C3 mph5 km/h SoutheastPartly Cloudy
10am51°F11°C2 mph3 km/h NortheastPartly Cloudy
11am51°F10°C2 mph3 km/h NortheastPartly Cloudy
12pm51°F11°C2 mph4 km/h EastPartly Cloudy
1pm55°F13°C2 mph3 km/h EastPartly Cloudy
2pm59°F15°C6 mph10 km/h SouthMostly Cloudy
3pm62°F17°C10 mph16 km/h SoutheastPartly Cloudy
4pm62°F17°C10 mph16 km/h SoutheastMostly Cloudy
5pm62°F17°C11 mph17 km/h SoutheastCloudy
6pm63°F17°C11 mph17 km/h SoutheastCloudy
7pm63°F17°C10 mph16 km/h SoutheastCloudy
8pm62°F17°C10 mph16 km/h SoutheastDrizzle
DateLowHighWindDayNight
November 951°F10°C63°F17°C8 mph13 km/h from SoutheastDrizzleRain
November 1035°F2°C57°F14°C8 mph13 km/h from WestRainMostly Clear
November 1132°F0°C42°F6°C15 mph24 km/h from WestWindyPartly Cloudy
November 1235°F2°C50°F10°C11 mph17 km/h from SouthwestMostly CloudyMostly Clear
November 1340°F4°C52°F11°C11 mph18 km/h from WestPartly CloudyMostly Clear
November 1437°F3°C52°F11°C10 mph16 km/h from NorthwestMostly ClearClear
November 1533°F1°C48°F9°C10 mph16 km/h from NorthwestMostly ClearPartly Cloudy

Yes

Low of 36°F2°C, High of 56°F14°C
Wind: 8 mph13 km/h
Precipitation: 57% rain

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