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Mammoth Lakes weather by month
Check out Mammoth Lakes weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Mammoth Lakes (°F)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 39 |
41 |
41 |
46 |
55 |
66 |
75 |
75 |
66 |
57 |
45 |
39 |
| Min temperature (night-time) | 16 |
16 |
18 |
21 |
28 |
36 |
43 |
43 |
36 |
28 |
21 |
16 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Mammoth Lakes
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 10 |
11 |
12 |
13 |
14 |
15 |
14 |
14 |
12 |
11 |
10 |
10 |
| UV Index (Maximum) | 3 |
4 |
6 |
8 |
9 |
11 |
11 |
10 |
8 |
5 |
3 |
2 |
Rainfall in Mammoth Lakes
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 7 |
7 |
8 |
5 |
5 |
4 |
5 |
5 |
5 |
4 |
6 |
6 |
| Average monthly rainfall (inches) | 4.9 |
4.1 |
3.7 |
2.2 |
1.3 |
0.9 |
0.9 |
0.8 |
0.8 |
1.4 |
3.6 |
4.7 |
More about Mammoth Lakes
Mammoth Lakes by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for California
The climate guide for California (Mammoth Lakes) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Mammoth Lakes?
Mammoth Lakes has a cold climate with warm dry summers.
Mammoth Lakes weather in January
Expect daytime maximum temperatures of 39°F in Mammoth Lakes, California in January based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 4.9 inches of rainfall in the month, which might fall as snow.
- 39°F max day temperature
39 - 7 hours of sunshine per day
- 7 days with some rainfall
7 - 16°F min night temperature
16 - 10 hours of daylight per day
10 - No heat & humidity
0 - 4.9 inches of monthly rainfall
4.9 - 3 (Moderate) UV index
3
Mammoth Lakes weather in February
Expect daytime maximum temperatures of 41°F in Mammoth Lakes, California in February based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 4.1 inches of rainfall in the month, which might fall as snow.
- 41°F max day temperature
41 - 8 hours of sunshine per day
- 7 days with some rainfall
7 - 16°F min night temperature
16 - 11 hours of daylight per day
11 - No heat & humidity
0 - 4.1 inches of monthly rainfall
4.1 - 4 (Moderate) UV index
4
Mammoth Lakes weather in March
Expect daytime maximum temperatures of 41°F in Mammoth Lakes, California in March based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.7 inches of rainfall in the month, which might fall as snow.
- 41°F max day temperature
41 - 9 hours of sunshine per day
- 8 days with some rainfall
8 - 18°F min night temperature
18 - 12 hours of daylight per day
12 - No heat & humidity
0 - 3.7 inches of monthly rainfall
3.7 - 6 (High) UV index
6
Mammoth Lakes weather in April
Expect daytime maximum temperatures of 46°F in Mammoth Lakes, California in April based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 2.2 inches of rainfall in the month, which might fall as snow.
- 46°F max day temperature
46 - 10 hours of sunshine per day
- 5 days with some rainfall
5 - 21°F min night temperature
21 - 13 hours of daylight per day
13 - No heat & humidity
0 - 2.2 inches of monthly rainfall
2.2 - 8 (Very High) UV index
8
Mammoth Lakes weather in May
Expect daytime maximum temperatures of 55°F in Mammoth Lakes, California in May based on long-term weather averages. There are 11 hours of sunshine per day on average.
- 55°F max day temperature
55 - 11 hours of sunshine per day
- 5 days with some rainfall
5 - 28°F min night temperature
28 - 14 hours of daylight per day
14 - No heat & humidity
0 - 1.3 inches of monthly rainfall
1.3 - 9 (Very High) UV index
9
Mammoth Lakes weather in June
Expect daytime maximum temperatures of 66°F in Mammoth Lakes, California in June based on long-term weather averages. There are 11 hours of sunshine per day on average.
- 66°F max day temperature
66 - 11 hours of sunshine per day
- 4 days with some rainfall
4 - 36°F min night temperature
36 - 15 hours of daylight per day
15 - No heat & humidity
0 - 0.9 inches of monthly rainfall
0.9 - 11 (Extreme) UV index
11
Mammoth Lakes weather in July
Expect daytime maximum temperatures of 75°F in Mammoth Lakes, California in July based on long-term weather averages. There are 12 hours of sunshine per day on average.
- 75°F max day temperature
75 - 12 hours of sunshine per day
- 5 days with some rainfall
5 - 43°F min night temperature
43 - 14 hours of daylight per day
14 - No heat & humidity
0 - 0.9 inches of monthly rainfall
0.9 - 11 (Extreme) UV index
11
Mammoth Lakes weather in August
Expect daytime maximum temperatures of 75°F in Mammoth Lakes, California in August based on long-term weather averages. There are 11 hours of sunshine per day on average.
- 75°F max day temperature
75 - 11 hours of sunshine per day
- 5 days with some rainfall
5 - 43°F min night temperature
43 - 14 hours of daylight per day
14 - No heat & humidity
0 - 0.8 inches of monthly rainfall
0.8 - 10 (Very High) UV index
10
Mammoth Lakes weather in September
Expect daytime maximum temperatures of 66°F in Mammoth Lakes, California in September based on long-term weather averages. There are 10 hours of sunshine per day on average.
- 66°F max day temperature
66 - 10 hours of sunshine per day
- 5 days with some rainfall
5 - 36°F min night temperature
36 - 12 hours of daylight per day
12 - No heat & humidity
0 - 0.8 inches of monthly rainfall
0.8 - 8 (Very High) UV index
8
Mammoth Lakes weather in October
Expect daytime maximum temperatures of 57°F in Mammoth Lakes, California in October based on long-term weather averages. There are 9 hours of sunshine per day on average.
- 57°F max day temperature
57 - 9 hours of sunshine per day
- 4 days with some rainfall
4 - 28°F min night temperature
28 - 11 hours of daylight per day
11 - No heat & humidity
0 - 1.4 inches of monthly rainfall
1.4 - 5 (Moderate) UV index
5
Mammoth Lakes weather in November
Expect daytime maximum temperatures of 45°F in Mammoth Lakes, California in November based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.6 inches of rainfall in the month, which might fall as snow.
- 45°F max day temperature
45 - 7 hours of sunshine per day
- 6 days with some rainfall
6 - 21°F min night temperature
21 - 10 hours of daylight per day
10 - No heat & humidity
0 - 3.6 inches of monthly rainfall
3.6 - 3 (Moderate) UV index
3
Mammoth Lakes weather in December
Expect daytime maximum temperatures of 39°F in Mammoth Lakes, California in December based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 4.7 inches of rainfall in the month, which might fall as snow.
- 39°F max day temperature
39 - 6 hours of sunshine per day
- 6 days with some rainfall
6 - 16°F min night temperature
16 - 10 hours of daylight per day
10 - No heat & humidity
0 - 4.7 inches of monthly rainfall
4.7 - 2 (Low) UV index
2
More about Mammoth Lakes
Mammoth Lakes by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for California
- Explore latest special offers & online deals from TUI
- Free child places & £0 deposits with direct debit available
- Book summer & winter sun holidays in 2026/2027
The climate guide for California (Mammoth Lakes) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Compare Mammoth Lakes weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Mammoth Lakes, California, USA and the UK (London).
Maximum daytime temperature (°F)
Metric (°C) | Imperial (°F)
More about California
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