Mammoth Lakes California Weather & Seasons

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No matter when you plan to visit Mammoth Lakes, check our area climate report so you know what to bring on your upcoming mountain get-a-way.

Summer
Mammoth summers are hot. Temperatures during this time usually hover around the 70’s and 80’s, though nighttime temps can dip down into the 40’s. August is usually the hottest month of the year.

Fall
Fall in Mammoth can still be warm, but as you begin to approach winter, temperatures can decline quickly. In fact, the first snow dustings usually come in October. Average temperatures in these months are usually about 10 to 20 degrees colder than summer, with highs averaging in the 50’s and 60’s and lows in the 30’s and 40’s.

Winter
Winters in Mammoth are cold and bring significant snowfall. Mammoth mountain receives of 400 inches of snowfall annually. Expect highs in the high 30’s and low 40’s and lows in the teens. January is usually the coldest, and wettest month of the year.

Spring
Spring usually sees highs in the 50’s and 60’s and lows in the high 30’s and low 40’s.  Because of the heavy winter snowfall, often the ground is still blanketed into late spring.  Sometimes the final snows don't melt off until June.

Precipitation
Mammoth averages 300 days of sunshine per year. Precipitation is generally pretty evenly spread across the year, though January see’s the most.

Take Note
Weather can change quickly in Mammoth, even in the summertime. Remember to dress in layers and carry waterproof clothing even during warm summer months.

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