Millbrae September Weather Averages California, United States of America

September Weather Averages for Millbrae

High Temp	22°C	72°F
Low Temp	15°C	59°F
Avg Temp	18°C	64°F
Sunshine Hours	309 hours
Rainfall	2.64 mm	0.10 In
Rain days	0 days
Pressure	1013 mb	30 In

Millbrae September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	25°C / 76°F	14°C / 58°F	19°C / 66°F	357 hours	0.00 mm / 0.00 In	0 days	1013 mb / 30 In
2009	25°C / 77°F	15°C / 59°F	19°C / 67°F	345 hours	3.80 mm / 0.15 In	0 days	1014 mb / 30 In
2010	22°C / 72°F	14°C / 58°F	18°C / 64°F	328 hours	0.10 mm / 0.00 In	0 days	1013 mb / 30 In
2011	22°C / 72°F	15°C / 59°F	18°C / 65°F	344 hours	0.30 mm / 0.01 In	0 days	1014 mb / 30 In
2012	21°C / 69°F	13°C / 56°F	16°C / 62°F	340 hours	0.00 mm / 0.00 In	0 days	1015 mb / 30 In
2013	21°C / 71°F	15°C / 59°F	18°C / 64°F	320 hours	11.18 mm / 0.44 In	1 days	1013 mb / 30 In
2014	22°C / 72°F	16°C / 60°F	19°C / 66°F	323 hours	2.80 mm / 0.11 In	1 days	1012 mb / 30 In
2015	24°C / 74°F	16°C / 60°F	19°C / 66°F	280 hours	2.40 mm / 0.09 In	1 days	1012 mb / 30 In
2016	22°C / 72°F	14°C / 58°F	18°C / 64°F	342 hours	0.00 mm / 0.00 In	0 days	1015 mb / 30 In
2017	25°C / 77°F	18°C / 64°F	21°C / 69°F	301 hours	1.20 mm / 0.05 In	0 days	1013 mb / 30 In
2018	22°C / 72°F	14°C / 58°F	18°C / 64°F	337 hours	0.00 mm / 0.00 In	0 days	1013 mb / 30 In
2019	23°C / 73°F	16°C / 62°F	19°C / 66°F	322 hours	0.70 mm / 0.03 In	0 days	1014 mb / 30 In
2020	24°C / 75°F	16°C / 61°F	19°C / 67°F	338 hours	0.00 mm / 0.00 In	0 days	1014 mb / 30 In
2021	22°C / 71°F	13°C / 56°F	17°C / 62°F	335 hours	0.10 mm / 0.00 In	0 days	1014 mb / 30 In
2022	23°C / 73°F	15°C / 58°F	18°C / 64°F	303 hours	14.90 mm / 0.59 In	1 days	1012 mb / 30 In
2023	20°C / 67°F	13°C / 56°F	16°C / 61°F	214 hours	3.04 mm / 0.12 In	0 days	1015 mb / 30 In
2024	19°C / 66°F	13°C / 55°F	16°C / 60°F	173 hours	1.78 mm / 0.07 In	0 days	1012 mb / 30 In

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