Temperature
Pleasant by day, brisk at night.
Warm days with cooler nights and plenty of sun.
Pleasant by day, brisk at night.
A few rainy days, mostly brief and on-and-off. About 3 wet days, the lowest monthly average.
Plenty of sun this month.
In August, afternoons feel about 68° and nights feel near 44°.
Clear skies this month.
Calm winds are typical in August.
August late afternoons are around 75°F, easing to about 66°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 37 | 16 | 3.8 | 8 | 8.5 | 63 |
| Feb | 38 | 17 | 3.8 | 8 | 9.3 | 63 |
| Mar | 42 | 21 | 2.7 | 8 | 10.9 | 64 |
| Apr | 47 | 25 | 1.5 | 6 | 12.1 | 64 |
| May | 57 | 32 | 1.1 | 7 | 13.3 | 61 |
| Jun | 70 | 42 | 0.6 | 4 | 13.7 | 49 |
| Jul | 78 | 49 | 0.6 | 5 | 13.7 | 42 |
| Aug | 77 | 48 | 0.6 | 3 | 13.1 | 41 |
| Sep | 71 | 43 | 0.4 | 3 | 11.8 | 43 |
| Oct | 60 | 34 | 1.0 | 4 | 10.6 | 50 |
| Nov | 46 | 23 | 1.8 | 5 | 9.1 | 58 |
| Dec | 37 | 17 | 3.7 | 8 | 8.2 | 63 |
Similar climates
Want a side-by-side climate view? Compare Mammoth Mountain with Banff.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology