Washington September Weather Averages District of Columbia, United States of America

September Weather Averages for Washington

High Temp	27°C	80°F
Low Temp	17°C	63°F
Avg Temp	22°C	71°F
Sunshine Hours	204 hours
Rainfall	124.87 mm	4.92 In
Rain days	7 days
Pressure	1017 mb	31 In

Washington September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	26°C / 80°F	17°C / 63°F	21°C / 70°F	245 hours	194.74 mm / 7.67 In	8 days	1018 mb / 31 In
2009	25°C / 77°F	16°C / 60°F	20°C / 68°F	202 hours	65.12 mm / 2.56 In	5 days	1018 mb / 31 In
2010	28°C / 82°F	17°C / 63°F	22°C / 72°F	279 hours	188.79 mm / 7.43 In	8 days	1015 mb / 30 In
2011	25°C / 78°F	17°C / 62°F	21°C / 69°F	161 hours	246.47 mm / 9.70 In	14 days	1016 mb / 30 In
2012	26°C / 79°F	16°C / 61°F	21°C / 69°F	256 hours	121.41 mm / 4.78 In	8 days	1017 mb / 30 In
2013	26°C / 79°F	15°C / 59°F	20°C / 68°F	282 hours	27.14 mm / 1.07 In	2 days	1016 mb / 30 In
2014	26°C / 79°F	16°C / 61°F	21°C / 69°F	228 hours	55.01 mm / 2.17 In	7 days	1019 mb / 31 In
2015	28°C / 82°F	17°C / 63°F	22°C / 72°F	159 hours	97.02 mm / 3.82 In	8 days	1018 mb / 31 In
2016	28°C / 82°F	18°C / 65°F	23°C / 73°F	175 hours	193.75 mm / 7.63 In	7 days	1018 mb / 31 In
2017	27°C / 81°F	18°C / 65°F	22°C / 72°F	236 hours	35.10 mm / 1.38 In	3 days	1017 mb / 31 In
2018	27°C / 81°F	21°C / 69°F	24°C / 75°F	110 hours	219.57 mm / 8.64 In	16 days	1020 mb / 31 In
2019	29°C / 85°F	20°C / 67°F	24°C / 75°F	220 hours	27.97 mm / 1.10 In	5 days	1019 mb / 31 In
2020	25°C / 77°F	18°C / 64°F	21°C / 70°F	158 hours	100.28 mm / 3.95 In	8 days	1019 mb / 31 In
2021	27°C / 81°F	17°C / 63°F	22°C / 71°F	216 hours	99.30 mm / 3.91 In	8 days	1016 mb / 30 In
2022	27°C / 81°F	16°C / 61°F	21°C / 70°F	234 hours	127.50 mm / 5.02 In	6 days	1017 mb / 31 In
2023	27°C / 81°F	17°C / 62°F	21°C / 71°F	189 hours	161.81 mm / 6.37 In	5 days	1017 mb / 31 In
2024	25°C / 77°F	18°C / 64°F	21°C / 70°F	162 hours	231.75 mm / 9.12 In	6 days	1018 mb / 31 In

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