Mammoth Mountain, United States · Alpine mountain climate

Mammoth Mountain in January: go or not?

Tough period. Mammoth Mountain in January only reaches 1.2/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 37.63°N · 118.97°W

⚡ This month's verdict

Avoid

Mammoth Mountain · January

1.2

-8–1°

Temperature

30%

Rain

6h

Sun

❄️ Alpine climate☀️ High-altitude UV🌦️ Changeable weather

Photo : Miguel Ángel Sanz via Unsplash

The month in detail

What to expect in January

Off-season for skiing Mammoth Mountain — lifts are closed. Consider hiking, mountain biking or summer activities at altitude.

January ranks 10 out of 12 months in Mammoth Mountain. Compared to December: −4°F daytime.

This month's conditions

What it's like in January

UV index

4 · moderate

protect during midday hours

Feels like

dry air

-10°

Daylight

9.7h of daylight

Air quality

good

AQI 34

Compare

Is January the right month?

The best month in Mammoth Mountain is July (9.0/10), 7.8 pts higher than January.

See July →See all 12 months →

Context

Our verdict

Mammoth Mountain is the reference ski resort of the Californian Sierra Nevada: 11,100 ft summit, season among the longest in North America (sometimes November to July in good years). July is my favorite month (9.4/10): 50-77°F, 9% rain, clear sky for hikes towards Devils Postpile , Rainbow Falls, Convict Lake .

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

Hotels & rentals · Mammoth Mountain

Tours, tickets, experiences

Multi-airline comparator

🎟️ Activities & tours · Mammoth Mountain

GetYourGuide selection · free cancellation

See all →

Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a mountain stay.

Country · United States

🗣️LanguageEnglish

💶CurrencyUS Dollar ($)

🚗DrivingRight-hand

🛡️Safety ⓘVery safe · 1/5

💰Cost of living ⓘExpensive · 4/5

🌡️ Climate

🌍Climate typeAlpine mountain climate

📈Climate trend ⓘStable

🔥Hottest monthJuly · 77°F

❄️Coolest monthJanuary · 34°F

🌧️Rainiest month ⓘMarch · 36%

🏔️ Mountain stay

⛰️Village altitude7953 ft

🎿Ski area7953 → 11056 ft

⛷️Ski seasonDec → May

🥾Hiking seasonJun → Sep

🧗High mountains ⓘGuide recommended

Explore

Other destinations in January

If January doesn't convince you for this destination, compare with others.

Similar climate

Lake TahoeUnited States

Steamboat SpringsUnited States

Park CityUnited States

Sun ValleyUnited States

PeloponneseGreece

Nearby

MontereyUnited States283 km

San FranciscoUSA304 km

Napa ValleyUnited States304 km

Santa BarbaraUnited States363 km

Other top picks

JordanJordan4.4

LilongweMalawi4.5

HarareZimbabwe4.6

BrisbaneAustralia5.3

← December February →

🗺️ See all 754 destinations on the map

Location

Where is Mammoth Mountain ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

United States

Alpine mountain climate climate with a 9.0 → 1.2 gap between best and worst month. 10 years of ERA5 data to choose by project.

37.63°N · 118.97°W

Questions

Frequently asked questions

When is the best time to visit Mammoth Mountain?

It depends on the activity. For skiing: March (ski score 8.5/10). For hiking/suiner: June (9.2/10, 21.0°F).

Can you ski in Mammoth Mountain in winter?

Yes, it's peak ski season. Average ski score December–February: 8.2/10. Cold temperatures (1°F max in January) and frequent snowfall.

Is it warm in Mammoth Mountain in suiner?

In June, temperatures average 21.0°F. Ideal for hiking and outdoor activities.

What is the wettest month in Mammoth Mountain?

November is the wettest month with November has the lowest climate score of the year.

Do you need sun protection in Mammoth Mountain in January?

The average UV index reaches 4 in January in Mammoth Mountain (moderate), with about 9.7h of daylight. Protect during midday hours.