August weather forecastMammoth Lakes, CA

August
Weather in August
August continues to bask in the warmth of the summer in Mammoth Lakes, with only a marginal reduction in average high temperature to 72.1°F (22.3°C). The lakes and hiking trails remain popular attractions as summer activities persist throughout the month. Mother Nature reveals her vibrant side with green scenery and diverse wildlife during August. Despite being towards the end of summer, the warmth lingers. Water sports flourish given the conducive climate Mammoth Lakes presents during this time.Temperature
August's arrival brings an average high-temperature of an agreeable 72.1°F (22.3°C), demonstrating subtle variation from the preceding month. The anticipated average low-temperature for August, a frosty 46.8°F (8.2°C), shows a substantial deviation from the daytime maximums.Humidity
August is the least humid month, with an average relative humidity of 34%.Rainfall
The months with the least rainfall are August and October Rain falls for 1.8 days and accumulates 0.08" (2mm) of rain.Snowfall
In Mammoth Lakes, snow does not fall in July and August.Daylight
In Mammoth Lakes, the average length of the day in August is 13h and 34min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:25 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12h of sunshine.UV index
In Mammoth Lakes, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 4 in August transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mammoth Lakes, CA
- Average high temperature in August: 72.1°F
The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is February (34°F).
- Average low temperature in August: 46.8°F
The month with the highest average low temperature is July (48.2°F).
The coldest month (with the lowest average low temperature) is February (14.9°F).
Average pressure in August
Mammoth Lakes, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Mammoth Lakes, CA
- Average wind speed in August: 4.9mph
The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in August
Mammoth Lakes, CA
- Average humidity in August: 34%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (34%).
Average rainfall in August
Mammoth Lakes, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (0.94").
The driest months (with the least rainfall) are August and October (0.08").
Average rainfall days in August
Mammoth Lakes, CA
- Average rainfall days in August: 1.8 days
The month with the highest number of rainy days is April (6.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in August
Mammoth Lakes, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.67").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Mammoth Lakes, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (11.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Mammoth Lakes, CA
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in August
Mammoth Lakes, CA
- Average sunshine days in August: 26.7 days
The month with the most sunshine days is October (27.3 days).
The month with the least sunshine days is March (18.2 days).
Average UV index in August
Mammoth Lakes, CA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in August
Mammoth Lakes, CA
- Average cloud cover in August: 7
The month with the most cloud cover is March (Cloud cover 30).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in August
Mammoth Lakes, CA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





