Old Mammoth Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Old Mammoth.

Climate overview of Old Mammoth

Old Mammoth, United States of America, sees big temperature differences between seasons, with July peaking at 25°C (77°F) and January dropping to 5°C (41°F).

Old Mammoth sees a moderate amount of rain/snowfall, totalling around 543 mm (21 in) per year. It experiences a distinct dry season from May to October, creating some seasonal variation.

Old Mammoth Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Old Mammoth — and find the best time to visit.

Monthly Temperature in Old Mammoth

Visitors to Old Mammoth can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.

At night, you can expect temperatures ranging from 8°C (46°F) in July to around -9°C (16°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Old Mammoth

Generally, Old Mammoth experiences moderate precipitation patterns, averaging 543 mm (21 in) yearly. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives high snowfall, averaging 111 mm (4.4 in) of precipitation, recorded across 9 snowy days. In contrast, the driest month September brings less rainfall, with 6.1 mm (0.2 in) over 2 rainy days. For more details, please visit our Old Mammoth Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Best Time to Visit Old Mammoth

During April, May, June, July, August, September and October, Old Mammoth experiences its most favorable weather, with temperatures between 11°C (51°F) and 25°C (77°F). These mild conditions make it an excellent time for a visit.

The weather does bring rainfall during this period, between 6 mm (0.2 in) and 43 mm (1.7 in).

Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.

Frequently asked questions about the climate in Old Mammoth

What is the best time to visit Old Mammoth?

June, July, August and September typically offer the most optimal weather in Old Mammoth. In contrast, January, February, March, November and December tend to have less optimal conditions. Old Mammoth has a distinct dry season from May to October.

What temperatures can I expect in Old Mammoth?

Daytime highs range from 5°C (41°F) in January to 25°C (77°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 Old Mammoth get?

Annual rainfall is around 543 mm (21 in). December is the wettest month with 111 mm (4.4 in), while September is the driest with 6.1 mm (0.2 in). In the coldest months, precipitation may fall as snow.

Old Mammoth 3-Day Forecast

Old Mammoth 3-Day Forecast

Old Mammoth on the map

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Popular this month

Where to go in July — average daytime high across popular destinations.

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