Altadena September Weather Averages California, United States of America

September Weather Averages for Altadena

High Temp	30°C	87°F
Low Temp	19°C	67°F
Avg Temp	24°C	76°F
Sunshine Hours	340 hours
Rainfall	4.85 mm	0.19 In
Rain days	1 days
Pressure	1012 mb	30 In

Altadena September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	32°C / 90°F	18°C / 65°F	25°C / 76°F	354 hours	0.00 mm / 0.00 In	0 days	1013 mb / 30 In
2010	30°C / 86°F	16°C / 62°F	23°C / 73°F	349 hours	0.00 mm / 0.00 In	0 days	1012 mb / 30 In
2011	29°C / 84°F	19°C / 66°F	23°C / 74°F	357 hours	0.50 mm / 0.02 In	0 days	1013 mb / 30 In
2012	32°C / 89°F	20°C / 69°F	26°C / 78°F	338 hours	2.10 mm / 0.08 In	1 days	1014 mb / 30 In
2013	30°C / 86°F	19°C / 66°F	24°C / 75°F	354 hours	1.50 mm / 0.06 In	1 days	1011 mb / 30 In
2014	31°C / 87°F	20°C / 68°F	25°C / 77°F	350 hours	1.60 mm / 0.06 In	1 days	1011 mb / 30 In
2015	31°C / 88°F	20°C / 68°F	25°C / 77°F	301 hours	21.30 mm / 0.84 In	3 days	1011 mb / 30 In
2016	30°C / 85°F	18°C / 64°F	23°C / 74°F	344 hours	3.60 mm / 0.14 In	1 days	1014 mb / 30 In
2017	29°C / 84°F	20°C / 68°F	24°C / 75°F	343 hours	4.70 mm / 0.19 In	1 days	1012 mb / 30 In
2018	30°C / 86°F	20°C / 68°F	25°C / 76°F	360 hours	0.00 mm / 0.00 In	0 days	1012 mb / 30 In
2019	29°C / 85°F	20°C / 68°F	24°C / 75°F	324 hours	3.80 mm / 0.15 In	1 days	1012 mb / 30 In
2020	34°C / 93°F	22°C / 72°F	28°C / 82°F	360 hours	0.00 mm / 0.00 In	0 days	1012 mb / 30 In
2021	32°C / 89°F	19°C / 66°F	25°C / 76°F	360 hours	0.00 mm / 0.00 In	0 days	1013 mb / 30 In
2022	32°C / 90°F	21°C / 70°F	26°C / 78°F	312 hours	23.50 mm / 0.93 In	3 days	1011 mb / 30 In
2023	26°C / 79°F	15°C / 59°F	20°C / 69°F	288 hours	10.11 mm / 0.40 In	1 days	1014 mb / 30 In

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