White Swan September Weather Averages Washington, United States of America

September Weather Averages for White Swan

High Temp	25°C	77°F
Low Temp	10°C	50°F
Avg Temp	17°C	62°F
Sunshine Hours	298 hours
Rainfall	11.66 mm	0.46 In
Rain days	2 days
Pressure	1015 mb	30 In

White Swan September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	24°C / 76°F	9°C / 49°F	16°C / 61°F	330 hours	4.30 mm / 0.17 In	1 days	1016 mb / 30 In
2010	22°C / 72°F	8°C / 46°F	15°C / 58°F	283 hours	31.60 mm / 1.24 In	4 days	1014 mb / 30 In
2011	26°C / 78°F	10°C / 51°F	18°C / 64°F	330 hours	0.50 mm / 0.02 In	0 days	1016 mb / 30 In
2012	26°C / 79°F	10°C / 49°F	17°C / 63°F	345 hours	0.10 mm / 0.00 In	0 days	1018 mb / 31 In
2013	23°C / 74°F	10°C / 50°F	16°C / 61°F	269 hours	49.29 mm / 1.94 In	3 days	1011 mb / 30 In
2014	24°C / 76°F	10°C / 50°F	16°C / 62°F	313 hours	17.30 mm / 0.68 In	2 days	1014 mb / 30 In
2015	23°C / 74°F	9°C / 48°F	16°C / 60°F	271 hours	4.00 mm / 0.16 In	2 days	1014 mb / 30 In
2016	23°C / 73°F	7°C / 45°F	15°C / 58°F	329 hours	4.90 mm / 0.19 In	1 days	1017 mb / 31 In
2017	25°C / 77°F	11°C / 52°F	18°C / 64°F	293 hours	11.90 mm / 0.47 In	3 days	1014 mb / 30 In
2018	23°C / 73°F	9°C / 49°F	16°C / 60°F	342 hours	0.90 mm / 0.04 In	1 days	1015 mb / 30 In
2019	22°C / 71°F	10°C / 50°F	15°C / 60°F	265 hours	21.00 mm / 0.83 In	4 days	1014 mb / 30 In
2020	28°C / 82°F	13°C / 55°F	20°C / 69°F	314 hours	9.40 mm / 0.37 In	2 days	1015 mb / 30 In
2021	26°C / 79°F	10°C / 51°F	18°C / 64°F	268 hours	9.90 mm / 0.39 In	1 days	1014 mb / 30 In
2022	29°C / 83°F	12°C / 54°F	20°C / 68°F	283 hours	1.30 mm / 0.05 In	0 days	1012 mb / 30 In
2023	25°C / 78°F	8°C / 47°F	16°C / 60°F	242 hours	18.50 mm / 0.73 In	2 days	1014 mb / 30 In
2024	27°C / 81°F	12°C / 53°F	19°C / 66°F	283 hours	1.67 mm / 0.07 In	1 days	1013 mb / 30 In

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