Norris Trailhead· Yosemite· conditions updating now
Open the map →

Norris Trailhead

Trailhead · Yosemite corridor

Norris Trailhead sits at 7,539 feet in the Yosemite corridor of California's Sierra Nevada. A high-elevation jump-off point typically calmer than windier passes to the north.

Today
18
NoGo Score · Go · excellent
Temp
34°F
Wind
4 mph
Vis
10 mi
Precip
0.00"
AQI
40
Cloud
2%

Wind averages 8 mph but ramps sharply in afternoon hours as thermals build off lower valleys. Morning calm dissolves by mid-afternoon. Cold persists even on mild days; expect 36 degrees Fahrenheit as the rolling average. Crowding remains light relative to Yosemite Valley proper.

Over the last 30 days, Norris Trailhead averaged a NoGo Score of 19 with temperatures holding near 36 degrees Fahrenheit and wind at 8 mph. The week ahead will show whether spring warming holds or rolls back; plan mornings for stability and reserve afternoons for lower-elevation traverses if conditions tighten.

30 days back / 7 days forward

NoGo Score
avg 19 · today 17
NoGo Score trend for Norris Trailhead: 30-day average 19, range 14 to 24; 6 days of forecastLine chart showing nogo score over 31 historical days and 6 days of forecast.
30-day average 19 (excellent); range 14 on Oct 1 to 24 on Oct 11. 7-day forecast trends in line with the historical average.
Wind
avg 10 · today 7mph
Wind speed trend for Norris Trailhead: 30-day average 10 mph, peak 13 mph on Sep 29Line chart showing wind over 31 historical days and 6 days of forecast.
30-day average 10 mph; peak 13 mph on Sep 29. Week ahead peaks at 10 mph on Oct 14.
Temperature
avg 57 · today 44°F
Temperature trend for Norris Trailhead: 30-day average 57°F, range 40 to 64°FLine chart showing temperature over 31 historical days and 6 days of forecast.
30-day average 57°F; range 40 (Oct 12) to 64 (Oct 3). Trending cooler.
Crowding
avg 25 · today 21
Crowding trend for Norris Trailhead: typically quietLine chart showing crowding over 31 historical days and 6 days of forecast.
Typically quiet (avg 25); peak 34 on Sep 20.

Today's score by factor

Weather8
Crowding25
Avalanche0
Fire0
Traffic—
Air quality8
Trails20
Seasonality23

About Norris Trailhead

Norris Trailhead anchors the northern Yosemite corridor at 7,539 feet, accessed via Highway 120 from Lee Vining or Tuolumne Meadows. The trailhead sits in the high-Sierra transition zone where snowmelt feeds multiple drainages. Parking is typically available even on weekends; the base popularity here is low relative to valley floors. Drive times from Lee Vining run 45 to 60 minutes depending on road condition and snow closure windows. Highway 120 opens fully in late spring and remains passable through early autumn.

Spring and early summer bring marginal conditions. Snowpack lingers past mid-elevation zones well into June; trails remain iced or boggy. Afternoon winds pick up as the season advances, with 30-day averages holding steady at 8 mph and gusts reaching 19 mph. Temperature ranges from a 365-day low of 21 degrees Fahrenheit in winter to a high of 53 degrees in summer. Crowding stays modest through the shoulder seasons but increases sharply during the first two weeks after Highway 120 reopens. Mornings deliver the calmest and most stable conditions; skip the trailhead after 2 p.m. if wind sensitivity is a concern.

This location suits climbers, backpackers, and high-elevation day hikers comfortable with cold exposure and thin air. Experienced users plan around snow closure windows and high-altitude weather swings. Parking capacity is ample, but services (fuel, water, supplies) require a drive back to Lee Vining or Tuolumne. Wind and temperature volatility demand layering and shelter-capable packs. Afternoon thermals and valley heating make early starts non-negotiable for stable conditions.

Nearby alternatives include Cathedral Lakes, Lyell Canyon, and the Tioga Pass drainage. Cathedral Lakes sits lower and warmer but receives more foot traffic. Lyell Canyon offers more sheltered northward access but demands longer commitment. Norris Trailhead competes less directly with Yosemite Valley trailheads; it serves the high-pass circuit and climbers targeting Sierra peaks rather than iconic granite formations.

Best times to visit Norris Trailhead

Best day
Tuesday to Thursday mornings before 10 a.m.
Best season
Late September to mid-October
Watch for
Afternoon wind and rapid temperature swings

Nearby

Bowler Group Camp
1.4 mi · Campground
Lower Jackass Lake Campground
1.7 mi · Campground
Jackass Lakes Trailhead
1.7 mi · Trailhead
Clover Meadow Campground
1.9 mi · Campground
Jackass Meadows Interpretive Site (minor)
1.9 mi · Campground
Upper Jackass Lake Campground
2.5 mi · Campground