Monthly weather forecast and climate
Mammoth Lakes, CA US

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (40.1°F).

The month with the highest average low temperature is July (45.3°F).
The coldest month (with the lowest average low temperature) is January (14.8°F).

The wettest month (with the highest rainfall) is January (4.6").
The driest month (with the lowest rainfall) is August (0.3").

Months with the highest number of rainy days are January and February (9 days).
Months with the lowest number of rainy days are August and September (2 days).

The month with the highest snowfall is December (45.3").
Months with the lowest snowfall are July, August and September (0").

The month with the longest days is June (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

The month with most sunshine is July (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 6h).

Months with the highest UV index are June and July (UV index 11).
The month with the lowest UV index is December (UV index 2).