Yes

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

Why? Because the cold's there, but it's just a reminder, not an invasion!
34°F1°C & Cloudy

Wind is 6 mph9 km/h from the Northwest, gusting to 12 mph19 km/h
December 24
1pm34°F1°C5 mph9 km/h NorthCloudy
2pm34°F1°C5 mph8 km/h NorthCloudy
3pm33°F1°C5 mph8 km/h NorthCloudy
4pm32°F-0°C5 mph8 km/h NorthCloudy
5pm31°F-1°C4 mph7 km/h NorthCloudy
6pm30°F-1°C4 mph6 km/h NorthCloudy
7pm30°F-1°C3 mph5 km/h NorthCloudy
8pm29°F-2°C3 mph4 km/h NortheastCloudy
9pm29°F-2°C2 mph4 km/h NortheastCloudy
10pm29°F-2°C2 mph3 km/h NortheastCloudy
11pm28°F-2°C2 mph4 km/h NortheastCloudy
December 25
12am28°F-2°C2 mph3 km/h NortheastCloudy
DateLowHighWindDayNight
December 2428°F-2°C35°F2°C4 mph7 km/h from NorthCloudyCloudy
December 2522°F-6°C31°F-1°C2 mph4 km/h from SoutheastMostly CloudyPartly Cloudy
December 2618°F-8°C31°F-1°C3 mph6 km/h from EastPartly CloudyPartly Cloudy
December 2719°F-7°C35°F2°C4 mph7 km/h from EastMostly CloudyCloudy
December 2829°F-2°C44°F7°C4 mph7 km/h from SouthMostly CloudyDrizzle
December 2941°F5°C54°F12°C10 mph16 km/h from SouthDrizzleDrizzle
December 3036°F2°C45°F7°C8 mph12 km/h from SouthMostly CloudyMostly Cloudy

Yes

Low of 21°F-6°C, High of 31°F-1°C
Wind: 2 mph4 km/h
Precipitation: None

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