Yes

you do need a jacket based on the weather in New York, NY 10016, USA 3 minutes ago

Why? Because it's quite chilly and it's on the windy side!
34°F1°C & Clear

Wind is 7 mph11 km/h from the North, gusting to 20 mph32 km/h
March 18
8am35°F2°C8 mph12 km/h NorthClear
9am38°F3°C12 mph19 km/h NorthClear
10am41°F5°C12 mph20 km/h NorthClear
11am45°F7°C12 mph19 km/h NorthClear
12pm49°F9°C11 mph18 km/h NorthClear
1pm52°F11°C10 mph15 km/h NorthClear
2pm55°F13°C8 mph13 km/h NorthClear
3pm57°F14°C6 mph10 km/h NorthClear
4pm58°F15°C6 mph9 km/h NorthClear
5pm59°F15°C5 mph9 km/h NorthwestClear
6pm58°F14°C4 mph6 km/h NorthClear
7pm55°F13°C2 mph4 km/h NortheastClear
DateLowHighWindDayNight
March 1834°F1°C59°F15°C8 mph13 km/h from NorthClearClear
March 1940°F5°C59°F15°C5 mph8 km/h from SoutheastMostly ClearCloudy
March 2042°F6°C52°F11°C10 mph17 km/h from SoutheastCloudyRain
March 2137°F3°C48°F9°C17 mph27 km/h from NorthwestDrizzleClear
March 2236°F2°C56°F13°C7 mph12 km/h from SouthwestMostly CloudyPartly Cloudy
March 2336°F2°C48°F9°C10 mph16 km/h from NorthwestClearPartly Cloudy
March 2434°F1°C51°F11°C10 mph17 km/h from SoutheastDrizzleRain

Yes

Low of 40°F5°C, High of 59°F15°C
Wind: 5 mph8 km/h
Precipitation: None

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