Yes

you do need a jacket based on the weather in Vernon, CT 06066, USA 1 second ago

Why? Because it's colder than a polar bear's pyjamas!
23°F-5°C & Cloudy

Wind is 4 mph7 km/h from the South, gusting to 15 mph24 km/h
December 24
12am23°F-5°C5 mph8 km/h SouthCloudy
1am24°F-4°C5 mph8 km/h SouthCloudy
2am25°F-4°C4 mph6 km/h SouthCloudy
3am25°F-4°C4 mph6 km/h SouthwestCloudy
4am25°F-4°C4 mph7 km/h SouthwestCloudy
5am25°F-4°C6 mph9 km/h SouthCloudy
6am26°F-3°C6 mph10 km/h SouthwestCloudy
7am26°F-3°C7 mph11 km/h SouthwestCloudy
8am26°F-3°C8 mph13 km/h SouthwestSnow
9am26°F-3°C7 mph12 km/h SouthwestSnow
10am28°F-2°C7 mph12 km/h SouthwestCloudy
11am30°F-1°C6 mph10 km/h SouthwestCloudy
DateLowHighWindDayNight
December 232°F-17°C24°F-4°C2 mph2 km/h from SouthwestMostly ClearMostly Cloudy
December 2423°F-5°C36°F2°C5 mph8 km/h from WestSnowMostly Clear
December 2519°F-7°C32°F0°C5 mph7 km/h from NorthClearMostly Clear
December 2617°F-9°C33°F1°C3 mph5 km/h from NorthPartly CloudyMostly Clear
December 2718°F-8°C37°F3°C2 mph3 km/h from NorthwestMostly ClearMostly Cloudy
December 2823°F-5°C40°F4°C1 mph2 km/h from NorthMostly CloudyCloudy
December 2930°F-1°C43°F6°C3 mph6 km/h from EastRainRain

Yes

Low of 23°F-5°C, High of 36°F2°C
Wind: 5 mph8 km/h
Precipitation: 48% snow

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