Yes

you do need a jacket based on the weather in Aurora, CO, USA 1 second ago

Why? Because it's cold. simple as that.
43°F6°C & Drizzle

Wind is 8 mph13 km/h from the N, gusting to 11 mph17 km/h
April 19
5pm44°F7°C9 mph14 km/h NCloudy
6pm44°F7°C9 mph14 km/h NCloudy
7pm43°F6°C9 mph15 km/h NCloudy
8pm41°F5°C10 mph16 km/h NHaze
9pm38°F3°C9 mph14 km/h NRain
10pm36°F2°C7 mph11 km/h NSnow
11pm35°F1°C5 mph9 km/h NSnow
April 20
12am34°F1°C5 mph8 km/h NSnow
1am34°F1°C4 mph7 km/h NSnow
2am33°F1°C4 mph6 km/h NSnow
3am33°F0°C3 mph5 km/h NSnow
4am32°F0°C3 mph5 km/h NEHaze
DateLowHighWindDayNight
April 1933°F0°C45°F7°C7 mph11 km/h from NRainSnow
April 2031°F-0°C44°F6°C6 mph10 km/h from NDrizzleCloudy
April 2133°F1°C66°F19°C3 mph6 km/h from SEMostly ClearPartly Cloudy
April 2245°F7°C74°F23°C8 mph12 km/h from WMostly CloudyPartly Cloudy
April 2343°F6°C62°F17°C7 mph11 km/h from EMostly CloudyPartly Cloudy
April 2445°F7°C74°F23°C5 mph8 km/h from NEPartly CloudyMostly Clear
April 2550°F10°C74°F24°C8 mph12 km/h from SWPartly CloudyPartly Cloudy

Yes

Low of 31°F-1°C, High of 44°F7°C
Wind: 6 mph10 km/h
Precipitation: 39% rain

Support This Page