Startup December Weather Averages Washington, United States of America

December Weather Averages for Startup

High Temp	6°C	42°F
Low Temp	-1°C	31°F
Avg Temp	2°C	36°F
Sunshine Hours	97 hours
Rainfall	381.07 mm	15.00 In
Rain days	16 days
Pressure	1018 mb	31 In

Startup December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	4°C / 40°F	-3°C / 27°F	0°C / 33°F	199 hours	83.16 mm / 3.27 In	9 days	1020 mb / 31 In
2010	5°C / 42°F	-1°C / 29°F	2°C / 35°F	109 hours	284.73 mm / 11.21 In	20 days	1013 mb / 30 In
2011	6°C / 43°F	-1°C / 30°F	2°C / 35°F	193 hours	153.89 mm / 6.06 In	8 days	1025 mb / 31 In
2012	5°C / 40°F	-1°C / 31°F	2°C / 35°F	35 hours	290.41 mm / 11.43 In	24 days	1013 mb / 30 In
2013	4°C / 39°F	-3°C / 26°F	0°C / 32°F	139 hours	179.62 mm / 7.07 In	12 days	1025 mb / 31 In
2014	6°C / 42°F	0°C / 32°F	3°C / 37°F	133 hours	199.38 mm / 7.85 In	15 days	1018 mb / 31 In
2015	5°C / 41°F	-1°C / 31°F	2°C / 36°F	50 hours	439.01 mm / 17.28 In	21 days	1014 mb / 30 In
2016	2°C / 36°F	-4°C / 25°F	-1°C / 31°F	83 hours	230.41 mm / 9.07 In	17 days	1021 mb / 31 In
2017	7°C / 44°F	-1°C / 30°F	2°C / 36°F	141 hours	290.96 mm / 11.45 In	12 days	1026 mb / 31 In
2018	7°C / 44°F	0°C / 32°F	3°C / 38°F	110 hours	297.80 mm / 11.72 In	14 days	1019 mb / 31 In
2019	7°C / 45°F	1°C / 34°F	4°C / 39°F	42 hours	288.63 mm / 11.36 In	11 days	1016 mb / 30 In
2020	7°C / 44°F	1°C / 33°F	4°C / 39°F	113 hours	301.11 mm / 11.85 In	16 days	1020 mb / 31 In
2021	4°C / 38°F	-1°C / 30°F	1°C / 34°F	38 hours	241.40 mm / 9.50 In	19 days	1012 mb / 30 In
2022	4°C / 39°F	-3°C / 27°F	1°C / 33°F	76 hours	222.30 mm / 8.75 In	15 days	1016 mb / 30 In
2023	9°C / 48°F	0°C / 33°F	5°C / 40°F	75 hours	517.20 mm / 20.36 In	16 days	1017 mb / 31 In
2024	8°C / 47°F	3°C / 37°F	6°C / 42°F	71 hours	851.36 mm / 33.52 In	16 days	1018 mb / 31 In
2025	8°C / 46°F	3°C / 38°F	6°C / 42°F	40 hours	1606.90 mm / 63.26 In	20 days	1016 mb / 30 In

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