Yosemite National Park Weather: Complete Climate Guide
Mediterranean Climate in the High Sierra
Yosemite's weather varies dramatically with elevation (2,000–13,114 ft), creating microclimates across the park.
Seasonal Patterns
- Summer (Jun–Sep): Hot, dry days (70–90°F valley); cool nights (40–50°F); afternoon thunderstorms possible at high elevations
- Fall (Oct–Nov): Pleasant days, cold nights; fall color (late Oct); first snows >8,000 ft
- Winter (Dec–Mar): Cold, wet; valley snow intermittent (avg 30"); high country deep snow (10–20+ ft); roads close (Tioga, Glacier Point)
- Spring (Apr–May): Variable; waterfalls peak (May); wildflowers; Tioga Road opens late May–June
Monthly Climate Data (Yosemite Valley ~4,000 ft)
| Month | Avg High (°F) | Avg Low (°F) | Precip (in) |
|---|
| Jan | 48 | 28 | 6.5 |
| Feb | 52 | 29 | 5.2 |
| Mar | 58 | 32 | 4.1 |
| Apr | 65 | 36 | 2.1 |
| May | 72 | 42 | 1.2 |
| Jun | 81 | 48 | 0.5 |
| Jul | 89 | 53 | 0.2 |
| Aug | 88 | 52 | 0.2 |
| Sep | 82 | 47 | 0.7 |
| Oct | 71 | 39 | 1.8 |
| Nov | 56 | 32 | 3.8 |
| Dec | 47 | 28 | 5.5 |
Elevation Effects
- Temperature drops ~3.5°F per 1,000 ft gain
- Precipitation increases with elevation (orographic lift)
- Snow line: ~6,000 ft (winter), ~9,000 ft (spring)
Planning Advice
- Check NPS current conditions
- Layer clothing; prepare for 40°F swings day/night
- Carry rain gear year-round
- Winter: tire chains required; check road status
Wanderlust World