Mount Gibbs
Peak · 12,772 ft · Yosemite corridor
Mount Gibbs is a 12,772-foot peak in the Yosemite corridor of California's Sierra Nevada, positioned on the crest east of Mono Lake. Wind-exposed and avalanche terrain above timberline.
Wind dominates this high-Sierra crest. The 30-day average wind of 15 mph routinely strengthens into the 30s by afternoon, funneling off the eastern slope. Morning calm windows close fast. Temperatures average 25 degrees across the rolling month, with snow present through spring. Expect significant afternoon gusts and rapid weather shifts.
The last 30 days show an average NoGo Score of 32 out of 100, with wind peaking at 39 mph and conditions ranging from 6 (rare calm) to 50 (marginal). The week ahead follows typical spring pattern: morning stability eroding into afternoon wind. Temperature and crowding remain low, but avalanche terrain is active. Plan for early starts and be ready to turn back by midday.
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About Mount Gibbs
Mount Gibbs sits on the Sierra crest northeast of Yosemite Valley, accessible via Highway 120 (Tioga Road) to the Mono Basin. The standard approach crosses Dana Plateau from the Highway 120 trailhead at Tioga Pass. Elevation is 12,772 feet; the peak sits within the Yosemite high-country corridor and triggers avalanche consideration under SAC (Sierra Avalanche Center) jurisdiction. This is not a walk-up; route-finding crosses snowfields in spring and requires map, compass, and avalanche awareness. Winter and early spring ascents demand snowpack assessment before committing to the final approach.
Conditions here are austere year-round. The 30-day average temperature of 25 degrees reflects spring conditions; winter sees lows near 9 degrees, summer highs around 38. Wind is the dominant force. The rolling 30-day average wind of 15 mph masks the daily reality: calm mornings (often before 8 a.m.) give way to ridge-driven afternoon gusts regularly exceeding 25 mph, with documented peaks at 39 mph. Crowding averages 3 out of 10, meaning solo ascents and small parties are the norm even on favorable weekends. Afternoon storms build quickly; the crest funnels weather from the west.
Mount Gibbs is best for experienced Sierra hikers comfortable navigating untrailed terrain, reading snowpack, and assessing avalanche hazard. Spring ascents (late April through early June) require understanding of wet-slab risk; snowfields are stable in early morning but soften rapidly by noon. Summer (late June through August) eliminates snow but brings afternoon thunderstorms and stronger winds. Fall (September through October) offers the most stable weather window and lowest crowding, though cold snaps can return. Winter is expert-only terrain; the southeast slopes hold avalanche terrain that releases under loaded conditions.
The nearest alternative is Mount Dana, 3 miles north on the same crest and slightly higher (13,053 feet); both are accessed via Highway 120 and share identical wind and avalanche exposure. Mono Lake lies directly east, creating a dramatic backdrop and east-facing wind acceleration. Hikers comfortable with the Yosemite corridor but seeking lower-exposure ascents should consider the Lyell-Maclure area further west (accessible via Lyell Canyon from Tuolumne Meadows on Highway 120), which sits in the rain shadow and sees less severe afternoon wind. Mount Gibbs rewards early starts and disciplined retreats.