Best Time to Visit Mammoth for Hiking – June Scores 87/100

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Outdoor activities Potential

87/100

Excellent

Based on optimal climate

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Seasonality

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Best Time

June, July, August

Avoid

January, February, March, April, November, December

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Weather

-1°C – 16°C

Avg Temp Range

Precipitation

Seasonal (check heatmap)

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Good For

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🥾 Planning a hiking trip to Mammoth?

The best time to visit Mammoth for hiking is June, July, August, when trail conditions are most favorable and the weather is more stable.

Start with the essentials:

hotel → Find top-rated stays near hiking areas in Mammoth explore → Browse the best hiking tours and routes in Mammoth

Climate Heatmap

See at a glance which months offer the best outdoor activities conditions — based on temperature, rainfall and climate scores.

Summer offers the most reliable hiking conditions in Mammoth, with open trails and longer daylight hours.

→ See where to stay in Mammoth

Outdoor activities conditions breakdown

Monthly weather & climate data for Mammoth

Month	Climate Score	Predictability	Avg Temp	Max Temp	Rain (mm)	Rain Days	Humidity	Season
January	29Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	-1°	7°	168	7.9	66%	wet
February	30Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	-1°	7°	144	7.8	66%	shoulder
March	35Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	1°	9°	108	7.5	61%	shoulder
April	43Poor Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	3°	11°	61	5.2	44%	shoulder
May	56Suboptimal Cool temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	8°	17°	40	5.3	33%	dry
June	87Excellent Cool temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	12°	22°	21	3.9	25%	dry
July	65Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	16°	27°	12	2.8	21%	dry
August	65Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	15°	26°	9	2.1	24%	dry
September	65Suboptimal Cool temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	12°	22°	12	2.9	28%	dry
October	55Suboptimal Cool temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	7°	17°	49	4.3	39%	dry
November	40Poor Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	2°	10°	80	4.8	55%	shoulder
December	31Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	-1°	7°	159	7.2	64%	wet