Manassas September Weather Averages Virginia, United States of America

September Weather Averages for Manassas

High Temp	27°C	80°F
Low Temp	16°C	61°F
Avg Temp	21°C	70°F
Sunshine Hours	205 hours
Rainfall	121.69 mm	4.79 In
Rain days	8 days
Pressure	1017 mb	31 In

Manassas September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	25°C / 77°F	15°C / 60°F	20°C / 67°F	189 hours	64.96 mm / 2.56 In	6 days	1018 mb / 31 In
2010	29°C / 83°F	17°C / 62°F	22°C / 72°F	279 hours	222.87 mm / 8.77 In	8 days	1015 mb / 30 In
2011	26°C / 78°F	16°C / 61°F	20°C / 68°F	148 hours	219.66 mm / 8.65 In	13 days	1015 mb / 30 In
2012	26°C / 79°F	15°C / 60°F	20°C / 68°F	256 hours	101.90 mm / 4.01 In	9 days	1017 mb / 30 In
2013	26°C / 79°F	14°C / 58°F	20°C / 67°F	279 hours	23.72 mm / 0.93 In	2 days	1017 mb / 30 In
2014	26°C / 79°F	16°C / 60°F	20°C / 69°F	201 hours	50.87 mm / 2.00 In	8 days	1019 mb / 31 In
2015	27°C / 80°F	17°C / 62°F	21°C / 70°F	148 hours	99.57 mm / 3.92 In	9 days	1018 mb / 31 In
2016	28°C / 82°F	18°C / 65°F	23°C / 73°F	201 hours	218.49 mm / 8.60 In	6 days	1018 mb / 31 In
2017	26°C / 79°F	16°C / 61°F	21°C / 69°F	237 hours	51.24 mm / 2.02 In	4 days	1017 mb / 31 In
2018	26°C / 79°F	19°C / 66°F	22°C / 72°F	132 hours	222.58 mm / 8.76 In	18 days	1020 mb / 31 In
2019	29°C / 83°F	18°C / 64°F	23°C / 73°F	239 hours	21.73 mm / 0.86 In	5 days	1019 mb / 31 In
2020	24°C / 76°F	16°C / 60°F	20°C / 68°F	140 hours	85.83 mm / 3.38 In	9 days	1019 mb / 31 In
2021	28°C / 82°F	16°C / 62°F	21°C / 71°F	207 hours	107.14 mm / 4.22 In	8 days	1017 mb / 30 In
2022	27°C / 80°F	16°C / 60°F	21°C / 69°F	232 hours	114.90 mm / 4.52 In	6 days	1017 mb / 31 In
2023	27°C / 80°F	16°C / 60°F	21°C / 69°F	182 hours	219.95 mm / 8.66 In	7 days	1017 mb / 31 In

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