Richland September Weather Averages Washington, United States of America

September Weather Averages for Richland

High Temp	27°C	81°F
Low Temp	14°C	58°F
Avg Temp	21°C	69°F
Sunshine Hours	297 hours
Rainfall	6.99 mm	0.28 In
Rain days	1 days
Pressure	1014 mb	30 In

Richland September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	26°C / 79°F	13°C / 55°F	19°C / 67°F	323 hours	10.05 mm / 0.40 In	1 days	1016 mb / 30 In
2009	28°C / 82°F	14°C / 58°F	21°C / 69°F	334 hours	1.40 mm / 0.06 In	1 days	1016 mb / 30 In
2010	25°C / 78°F	13°C / 55°F	19°C / 66°F	287 hours	15.20 mm / 0.60 In	1 days	1014 mb / 30 In
2011	28°C / 83°F	15°C / 59°F	21°C / 70°F	311 hours	0.00 mm / 0.00 In	0 days	1015 mb / 30 In
2012	28°C / 82°F	15°C / 58°F	21°C / 69°F	339 hours	0.00 mm / 0.00 In	0 days	1017 mb / 31 In
2013	26°C / 79°F	15°C / 60°F	21°C / 69°F	261 hours	30.02 mm / 1.18 In	4 days	1011 mb / 30 In
2014	27°C / 81°F	15°C / 58°F	21°C / 69°F	326 hours	3.00 mm / 0.12 In	1 days	1013 mb / 30 In
2015	26°C / 79°F	14°C / 57°F	20°C / 68°F	301 hours	2.70 mm / 0.11 In	1 days	1013 mb / 30 In
2016	25°C / 78°F	13°C / 56°F	19°C / 66°F	313 hours	5.40 mm / 0.21 In	2 days	1016 mb / 30 In
2017	28°C / 82°F	16°C / 60°F	21°C / 71°F	292 hours	9.50 mm / 0.37 In	3 days	1014 mb / 30 In
2018	26°C / 78°F	13°C / 56°F	19°C / 67°F	345 hours	0.20 mm / 0.01 In	0 days	1015 mb / 30 In
2019	25°C / 77°F	15°C / 58°F	20°C / 67°F	274 hours	5.50 mm / 0.22 In	2 days	1014 mb / 30 In
2020	30°C / 86°F	16°C / 60°F	23°C / 74°F	322 hours	3.90 mm / 0.15 In	1 days	1015 mb / 30 In
2021	28°C / 83°F	14°C / 57°F	21°C / 70°F	286 hours	12.70 mm / 0.50 In	3 days	1013 mb / 30 In
2022	31°C / 87°F	16°C / 60°F	23°C / 73°F	273 hours	2.30 mm / 0.09 In	0 days	1011 mb / 30 In
2023	27°C / 81°F	12°C / 53°F	19°C / 67°F	235 hours	19.31 mm / 0.76 In	3 days	1013 mb / 30 In
2024	29°C / 85°F	14°C / 58°F	21°C / 70°F	257 hours	0.69 mm / 0.03 In	0 days	1012 mb / 30 In

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