Yes

you do need a jacket based on the weather in New York, NY, USA 1 second ago

Why? Because it's bitterly cold.
43°F6°C & Mostly Clear

Wind is 2 mph3 km/h from the SW, gusting to 5 mph8 km/h
April 27
6am43°F6°C2 mph4 km/h SWMostly Clear
7am44°F7°C2 mph3 km/h SWPartly Cloudy
8am47°F8°C2 mph4 km/h SMostly Cloudy
9am50°F10°C5 mph7 km/h SMostly Cloudy
10am54°F12°C7 mph11 km/h SMostly Cloudy
11am57°F14°C9 mph14 km/h SMostly Cloudy
12pm59°F15°C10 mph17 km/h SMostly Cloudy
1pm59°F15°C12 mph19 km/h SMostly Cloudy
2pm60°F15°C13 mph21 km/h SCloudy
3pm59°F15°C14 mph22 km/h SCloudy
4pm58°F14°C14 mph23 km/h SCloudy
5pm57°F14°C14 mph22 km/h SCloudy
DateLowHighWindDayNight
April 2743°F6°C60°F15°C10 mph16 km/h from SMostly CloudyDrizzle
April 2849°F9°C72°F22°C6 mph9 km/h from SMostly CloudyMostly Cloudy
April 2961°F16°C84°F29°C6 mph10 km/h from NWPartly CloudyPartly Cloudy
April 3057°F14°C70°F21°C9 mph14 km/h from SEPartly CloudyRain
May 154°F12°C69°F20°C6 mph10 km/h from NEMostly CloudyPartly Cloudy
May 250°F10°C65°F19°C7 mph12 km/h from SEPartly CloudyPartly Cloudy
May 351°F11°C67°F19°C9 mph14 km/h from SEDrizzleDrizzle

Yes

Low of 49°F10°C, High of 73°F23°C
Wind: 6 mph9 km/h
Precipitation: 31% rain

Support This Page