Mercer Island January Weather Averages Washington, United States of America

January Weather Averages for Mercer Island

High Temp	7°C	45°F
Low Temp	2°C	36°F
Avg Temp	4°C	40°F
Sunshine Hours	115 hours
Rainfall	181.85 mm	7.16 In
Rain days	13 days
Pressure	1019 mb	31 In

Mercer Island January Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	6°C / 43°F	0°C / 33°F	3°C / 37°F	169 hours	189.48 mm / 7.46 In	10 days	1025 mb / 31 In
2010	9°C / 48°F	4°C / 40°F	6°C / 43°F	135 hours	176.60 mm / 6.95 In	13 days	1011 mb / 30 In
2011	7°C / 44°F	2°C / 35°F	4°C / 39°F	105 hours	199.90 mm / 7.87 In	13 days	1022 mb / 31 In
2012	6°C / 42°F	1°C / 33°F	3°C / 37°F	83 hours	180.10 mm / 7.09 In	13 days	1019 mb / 31 In
2013	6°C / 43°F	0°C / 32°F	2°C / 36°F	175 hours	125.60 mm / 4.94 In	13 days	1023 mb / 31 In
2014	9°C / 47°F	2°C / 35°F	4°C / 40°F	193 hours	127.10 mm / 5.00 In	9 days	1023 mb / 31 In
2015	10°C / 49°F	3°C / 38°F	6°C / 42°F	167 hours	162.27 mm / 6.39 In	8 days	1023 mb / 31 In
2016	8°C / 46°F	2°C / 36°F	5°C / 40°F	125 hours	166.78 mm / 6.57 In	14 days	1015 mb / 30 In
2017	5°C / 41°F	-1°C / 30°F	2°C / 35°F	148 hours	92.88 mm / 3.66 In	8 days	1018 mb / 31 In
2018	9°C / 47°F	4°C / 39°F	6°C / 43°F	64 hours	267.54 mm / 10.53 In	22 days	1018 mb / 31 In
2019	9°C / 49°F	3°C / 37°F	6°C / 42°F	170 hours	114.70 mm / 4.52 In	8 days	1018 mb / 31 In
2020	7°C / 45°F	3°C / 37°F	5°C / 41°F	12 hours	330.23 mm / 13.00 In	29 days	1015 mb / 30 In
2021	8°C / 46°F	3°C / 38°F	5°C / 41°F	66 hours	268.37 mm / 10.57 In	12 days	1017 mb / 31 In
2022	8°C / 46°F	2°C / 35°F	4°C / 40°F	99 hours	228.00 mm / 8.98 In	13 days	1021 mb / 31 In
2023	8°C / 46°F	2°C / 36°F	5°C / 40°F	74 hours	113.20 mm / 4.46 In	9 days	1017 mb / 30 In
2024	6°C / 43°F	2°C / 35°F	4°C / 38°F	58 hours	166.86 mm / 6.57 In	10 days	1015 mb / 30 In

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