Mercer Island July Weather Averages Washington, United States of America

July Weather Averages for Mercer Island

High Temp	26°C	78°F
Low Temp	13°C	56°F
Avg Temp	19°C	67°F
Sunshine Hours	260 hours
Rainfall	16.47 mm	0.65 In
Rain days	2 days
Pressure	1017 mb	31 In

Mercer Island July Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	28°C / 82°F	14°C / 57°F	21°C / 69°F	317 hours	5.50 mm / 0.22 In	1 days	1017 mb / 31 In
2010	25°C / 77°F	12°C / 53°F	18°C / 65°F	325 hours	10.40 mm / 0.41 In	0 days	1017 mb / 31 In
2011	22°C / 72°F	11°C / 51°F	16°C / 62°F	197 hours	32.80 mm / 1.29 In	6 days	1016 mb / 30 In
2012	23°C / 74°F	12°C / 54°F	18°C / 64°F	279 hours	32.70 mm / 1.29 In	4 days	1016 mb / 30 In
2013	26°C / 80°F	13°C / 56°F	20°C / 67°F	338 hours	1.40 mm / 0.06 In	0 days	1017 mb / 30 In
2014	26°C / 80°F	14°C / 57°F	20°C / 68°F	284 hours	29.90 mm / 1.18 In	4 days	1017 mb / 31 In
2015	26°C / 80°F	14°C / 57°F	20°C / 69°F	250 hours	14.14 mm / 0.56 In	1 days	1015 mb / 30 In
2016	23°C / 73°F	12°C / 54°F	17°C / 63°F	172 hours	30.70 mm / 1.21 In	5 days	1017 mb / 31 In
2017	26°C / 78°F	13°C / 55°F	19°C / 66°F	298 hours	3.10 mm / 0.12 In	0 days	1018 mb / 31 In
2018	28°C / 82°F	15°C / 58°F	21°C / 70°F	310 hours	8.00 mm / 0.31 In	1 days	1019 mb / 31 In
2019	24°C / 75°F	13°C / 56°F	18°C / 65°F	164 hours	37.10 mm / 1.46 In	6 days	1017 mb / 31 In
2020	24°C / 75°F	14°C / 56°F	19°C / 66°F	194 hours	15.30 mm / 0.60 In	1 days	1016 mb / 30 In
2021	27°C / 81°F	15°C / 58°F	21°C / 70°F	289 hours	2.30 mm / 0.09 In	0 days	1017 mb / 31 In
2022	27°C / 81°F	14°C / 56°F	20°C / 67°F	223 hours	13.10 mm / 0.52 In	2 days	1016 mb / 30 In
2023	27°C / 81°F	13°C / 55°F	19°C / 67°F	257 hours	10.60 mm / 0.42 In	1 days	1017 mb / 31 In

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