Boulder December Weather Averages Colorado, United States of America

December Weather Averages for Boulder

High Temp	3°C	38°F
Low Temp	-7°C	19°F
Avg Temp	-3°C	27°F
Sunshine Hours	274 hours
Rainfall	20.78 mm	0.82 In
Rain days	5 days
Pressure	1019 mb	31 In

Boulder December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	1°C / 34°F	-10°C / 15°F	-5°C / 24°F	277 hours	25.20 mm / 0.99 In	8 days	1017 mb / 31 In
2009	-1°C / 30°F	-11°C / 12°F	-7°C / 20°F	273 hours	20.40 mm / 0.80 In	6 days	1020 mb / 31 In
2010	4°C / 40°F	-7°C / 19°F	-2°C / 28°F	318 hours	23.10 mm / 0.91 In	4 days	1017 mb / 31 In
2011	0°C / 33°F	-11°C / 12°F	-6°C / 21°F	291 hours	32.40 mm / 1.28 In	6 days	1025 mb / 31 In
2012	3°C / 38°F	-8°C / 18°F	-3°C / 26°F	230 hours	20.70 mm / 0.81 In	6 days	1017 mb / 31 In
2013	1°C / 34°F	-10°C / 13°F	-6°C / 22°F	317 hours	17.58 mm / 0.69 In	3 days	1022 mb / 31 In
2014	4°C / 38°F	-8°C / 18°F	-3°C / 27°F	250 hours	31.40 mm / 1.24 In	7 days	1021 mb / 31 In
2015	0°C / 32°F	-10°C / 14°F	-6°C / 22°F	219 hours	28.23 mm / 1.11 In	7 days	1018 mb / 31 In
2016	0°C / 32°F	-11°C / 12°F	-6°C / 21°F	271 hours	31.20 mm / 1.23 In	8 days	1021 mb / 31 In
2017	5°C / 40°F	-6°C / 21°F	-1°C / 29°F	320 hours	11.90 mm / 0.47 In	4 days	1022 mb / 31 In
2018	3°C / 37°F	-8°C / 18°F	-3°C / 26°F	297 hours	13.10 mm / 0.52 In	3 days	1021 mb / 31 In
2019	1°C / 34°F	-7°C / 19°F	-4°C / 25°F	268 hours	11.60 mm / 0.46 In	4 days	1020 mb / 31 In
2020	4°C / 40°F	-6°C / 22°F	-1°C / 30°F	266 hours	14.50 mm / 0.57 In	4 days	1022 mb / 31 In
2021	9°C / 48°F	-3°C / 26°F	2°C / 36°F	281 hours	20.30 mm / 0.80 In	4 days	1009 mb / 30 In
2022	4°C / 38°F	-9°C / 16°F	-3°C / 26°F	251 hours	33.40 mm / 1.31 In	6 days	1015 mb / 30 In
2023	6°C / 43°F	-3°C / 27°F	1°C / 34°F	245 hours	22.62 mm / 0.89 In	7 days	1018 mb / 31 In
2024	8°C / 46°F	-2°C / 29°F	3°C / 37°F	288 hours	0.09 mm / 0.00 In	0 days	1018 mb / 31 In

Colorado

Hotels Near Boulder

Cities Near Boulder

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, autocomplete, time zone, astronomy and sports data into your new or existing project.

Get Started