Best Time to Visit Mammoth for Backpacking – July Scores 98/100

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Backpacking Potential

98/100

Excellent

Based on optimal climate

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Seasonality

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Best Time

July, April, May

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 backpacking trip to Mammoth?

The best time to visit Mammoth for backpacking is July, April, May, when you’ll get the best balance between weather, crowds, and costs.

Start with the essentials:

hotel → Find the best value stays in Mammoth explore → Browse the best things to do in Mammoth

Climate Heatmap

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

These months are especially popular among backpackers in Mammoth due to better weather and lower costs.

→ See where to stay in Mammoth

Backpacking conditions breakdown

Monthly weather & climate data for Mammoth

Month	Climate Score	Predictability	Avg Temp	Max Temp	Rain (mm)	Rain Days	Humidity	Season
January	44Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	-1°	7°	168	7.9	66%	wet
February	45Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	-1°	7°	144	7.8	66%	shoulder
March	51Suboptimal Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	1°	9°	108	7.5	61%	shoulder
April	55Suboptimal Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	3°	11°	61	5.2	44%	shoulder
May	55Suboptimal Cool temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	8°	17°	40	5.3	33%	dry
June	55Suboptimal Cool temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	12°	22°	21	3.9	25%	dry
July	98Excellent Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	16°	27°	12	2.8	21%	dry
August	55Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	15°	26°	9	2.1	24%	dry
September	55Suboptimal 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	55Suboptimal Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	2°	10°	80	4.8	55%	shoulder
December	47Poor Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	-1°	7°	159	7.2	64%	wet