Mammoth Lakes September Weather Averages California, United States of America

September Weather Averages for Mammoth Lakes

High Temp	22°C	71°F
Low Temp	8°C	47°F
Avg Temp	15°C	59°F
Sunshine Hours	334 hours
Rainfall	10.46 mm	0.41 In
Rain days	2 days
Pressure	1014 mb	30 In

Mammoth Lakes September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	23°C / 73°F	8°C / 46°F	15°C / 58°F	340 hours	5.41 mm / 0.21 In	1 days	1014 mb / 30 In
2009	24°C / 74°F	9°C / 48°F	16°C / 60°F	316 hours	3.60 mm / 0.14 In	1 days	1015 mb / 30 In
2010	23°C / 73°F	6°C / 44°F	14°C / 57°F	358 hours	0.00 mm / 0.00 In	0 days	1013 mb / 30 In
2011	21°C / 70°F	9°C / 48°F	15°C / 59°F	334 hours	8.78 mm / 0.35 In	5 days	1015 mb / 30 In
2012	22°C / 72°F	9°C / 48°F	15°C / 60°F	350 hours	1.90 mm / 0.07 In	1 days	1015 mb / 30 In
2013	20°C / 69°F	7°C / 44°F	13°C / 56°F	337 hours	6.70 mm / 0.26 In	4 days	1012 mb / 30 In
2014	22°C / 71°F	8°C / 46°F	15°C / 58°F	336 hours	26.95 mm / 1.06 In	3 days	1012 mb / 30 In
2015	22°C / 72°F	10°C / 50°F	16°C / 60°F	315 hours	3.50 mm / 0.14 In	2 days	1013 mb / 30 In
2016	20°C / 69°F	8°C / 46°F	14°C / 57°F	350 hours	2.50 mm / 0.10 In	0 days	1015 mb / 30 In
2017	19°C / 66°F	8°C / 46°F	13°C / 56°F	342 hours	8.90 mm / 0.35 In	3 days	1014 mb / 30 In
2018	23°C / 73°F	9°C / 48°F	16°C / 60°F	360 hours	0.00 mm / 0.00 In	0 days	1013 mb / 30 In
2019	20°C / 68°F	8°C / 46°F	14°C / 57°F	334 hours	10.12 mm / 0.40 In	4 days	1014 mb / 30 In
2020	24°C / 75°F	11°C / 51°F	18°C / 64°F	340 hours	3.00 mm / 0.12 In	1 days	1015 mb / 30 In
2021	24°C / 75°F	9°C / 49°F	16°C / 61°F	352 hours	0.40 mm / 0.02 In	0 days	1017 mb / 31 In
2022	23°C / 73°F	10°C / 50°F	16°C / 61°F	299 hours	7.70 mm / 0.30 In	4 days	1016 mb / 30 In
2023	20°C / 68°F	6°C / 43°F	13°C / 55°F	320 hours	37.05 mm / 1.46 In	3 days	1015 mb / 30 In
2024	21°C / 69°F	8°C / 46°F	13°C / 56°F	303 hours	46.28 mm / 1.82 In	1 days	1016 mb / 30 In

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