Mammoth Lakes (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mammoth Lakes.
Climate overview of Mammoth Lakes
Summers are warm and dry. The average temperature is around 25°C (77°F) and with around 8 mm (0.3 in) of precipation a month the chance you will experience rain is very small.
Mammoth Lakes Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mammoth Lakes - and find the best time to visit.
Monthly Temperature in Mammoth Lakes
In Mammoth Lakes, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 26°C (79°F) in July to a chilly 5°C (41°F) in December.
Nighttime temperatures range from 8°C (46°F) in July to -9°C (16°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mammoth Lakes
Mammoth Lakes typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 492 mm (19 in). The seasons in Mammoth Lakes bring significant changes in precipitation. The wettest month, December, receives high snowfall, with an average of 103 mm (4.1 in) of precipitation. This snowfall is distributed across 9 snowy days.
In contrast, the driest month, September, experiences much less rainfall, totaling 6 mm (0.2 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Mammoth Lakes Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Mammoth Lakes
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Fewest rainy days: June, August and September
- Wettest months: January, February, March and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from April to October, with warm summers and cold winters
- Coldest conditions: December, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Mammoth Lakes
What is the best time to visit Mammoth Lakes?
June, July, August and September typically offer the most optimal weather in Mammoth Lakes. In contrast, January, February, March, November and December tend to have less optimal conditions. Mammoth Lakes has a distinct dry season from April to October, with warm summers and cold winters.
What temperatures can I expect in Mammoth Lakes?
Daytime highs range from 5°C (41°F) in December to 26°C (79°F) in July. Nighttime lows range from -9°C (16°F) to 8°C (46°F). Temperatures vary considerably through the year.
How much rain does Mammoth Lakes get?
Annual rainfall is around 492 mm (19 in). December is the wettest month with 103 mm (4.1 in), while September is the driest with 6 mm (0.2 in). In the coldest months, precipitation may fall as snow.
Mammoth Lakes 3-Day Forecast
Mammoth Lakes (CA) 3-Day Forecast
Mammoth Lakes on the map
Mammoth Lakes is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.