Mercer Island October Weather Averages Washington, United States of America

October Weather Averages for Mercer Island

High Temp	16°C	60°F
Low Temp	8°C	46°F
Avg Temp	11°C	52°F
Sunshine Hours	174 hours
Rainfall	147.16 mm	5.79 In
Rain days	10 days
Pressure	1017 mb	31 In

Mercer Island October Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	14°C / 57°F	6°C / 43°F	10°C / 50°F	171 hours	189.69 mm / 7.47 In	11 days	1017 mb / 31 In
2010	16°C / 61°F	7°C / 45°F	11°C / 52°F	225 hours	141.90 mm / 5.59 In	8 days	1017 mb / 31 In
2011	14°C / 58°F	7°C / 44°F	10°C / 50°F	164 hours	111.60 mm / 4.39 In	9 days	1018 mb / 31 In
2012	16°C / 60°F	7°C / 45°F	11°C / 52°F	174 hours	211.50 mm / 8.33 In	18 days	1016 mb / 30 In
2013	16°C / 60°F	6°C / 42°F	10°C / 50°F	272 hours	34.00 mm / 1.34 In	5 days	1020 mb / 31 In
2014	18°C / 64°F	10°C / 50°F	13°C / 56°F	173 hours	192.80 mm / 7.59 In	12 days	1014 mb / 30 In
2015	17°C / 62°F	10°C / 50°F	13°C / 55°F	133 hours	134.89 mm / 5.31 In	9 days	1016 mb / 30 In
2016	14°C / 58°F	8°C / 47°F	11°C / 52°F	81 hours	250.75 mm / 9.87 In	17 days	1011 mb / 30 In
2017	16°C / 61°F	7°C / 45°F	11°C / 52°F	203 hours	174.21 mm / 6.86 In	12 days	1019 mb / 31 In
2018	16°C / 61°F	8°C / 46°F	12°C / 53°F	201 hours	114.89 mm / 4.52 In	8 days	1019 mb / 31 In
2019	14°C / 57°F	6°C / 42°F	9°C / 48°F	169 hours	161.10 mm / 6.34 In	11 days	1021 mb / 31 In
2020	16°C / 61°F	9°C / 48°F	12°C / 54°F	154 hours	131.70 mm / 5.19 In	10 days	1020 mb / 31 In
2021	14°C / 57°F	7°C / 45°F	10°C / 50°F	77 hours	165.00 mm / 6.50 In	13 days	1015 mb / 30 In
2022	20°C / 68°F	9°C / 49°F	14°C / 57°F	231 hours	111.00 mm / 4.37 In	7 days	1017 mb / 31 In
2023	17°C / 63°F	8°C / 46°F	12°C / 53°F	175 hours	82.40 mm / 3.24 In	5 days	1017 mb / 31 In

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