Saint Helens December Weather Averages Oregon, United States of America

December Weather Averages for Saint Helens

High Temp	7°C	44°F
Low Temp	1°C	34°F
Avg Temp	4°C	38°F
Sunshine Hours	99 hours
Rainfall	227.35 mm	8.95 In
Rain days	13 days
Pressure	1018 mb	31 In

Saint Helens December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	4°C / 40°F	-1°C / 30°F	1°C / 35°F	82 hours	209.91 mm / 8.26 In	18 days	1017 mb / 31 In
2009	6°C / 42°F	-1°C / 30°F	2°C / 35°F	190 hours	139.39 mm / 5.49 In	11 days	1019 mb / 31 In
2010	7°C / 44°F	2°C / 35°F	4°C / 39°F	73 hours	277.53 mm / 10.93 In	17 days	1013 mb / 30 In
2011	7°C / 44°F	-1°C / 30°F	2°C / 36°F	231 hours	104.32 mm / 4.11 In	6 days	1026 mb / 31 In
2012	6°C / 42°F	1°C / 34°F	3°C / 38°F	21 hours	270.06 mm / 10.63 In	21 days	1014 mb / 30 In
2013	5°C / 41°F	-2°C / 29°F	1°C / 35°F	160 hours	92.83 mm / 3.65 In	7 days	1025 mb / 31 In
2014	8°C / 46°F	2°C / 36°F	5°C / 41°F	110 hours	196.35 mm / 7.73 In	13 days	1017 mb / 31 In
2015	6°C / 44°F	2°C / 36°F	4°C / 39°F	32 hours	453.05 mm / 17.84 In	20 days	1014 mb / 30 In
2016	4°C / 39°F	-1°C / 29°F	1°C / 34°F	98 hours	146.24 mm / 5.76 In	12 days	1021 mb / 31 In
2017	7°C / 45°F	1°C / 33°F	3°C / 38°F	143 hours	144.38 mm / 5.68 In	9 days	1025 mb / 31 In
2018	8°C / 46°F	2°C / 36°F	5°C / 41°F	111 hours	195.91 mm / 7.71 In	15 days	1020 mb / 31 In
2019	8°C / 46°F	3°C / 37°F	5°C / 41°F	68 hours	196.73 mm / 7.75 In	9 days	1016 mb / 30 In
2020	7°C / 45°F	2°C / 35°F	5°C / 40°F	114 hours	186.93 mm / 7.36 In	13 days	1021 mb / 31 In
2021	5°C / 41°F	0°C / 33°F	3°C / 37°F	32 hours	222.70 mm / 8.77 In	18 days	1012 mb / 30 In
2022	5°C / 41°F	0°C / 32°F	2°C / 36°F	57 hours	209.20 mm / 8.24 In	16 days	1016 mb / 30 In
2023	9°C / 48°F	3°C / 38°F	6°C / 42°F	75 hours	341.67 mm / 13.45 In	12 days	1017 mb / 31 In
2024	8°C / 46°F	4°C / 40°F	6°C / 42°F	66 hours	460.30 mm / 18.12 In	13 days	1019 mb / 31 In

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