Simmons Peak
Peak · 12,480 ft · Yosemite corridor
Simmons Peak is a 12480-foot summit in the Yosemite corridor of California's Sierra Nevada. Exposed high-country terrain, it runs colder and windier than lower valleys and demands winter experience.
Wind dominates Simmons Peak. The 30-day average wind is 13 mph, but afternoon gusts regularly exceed 30 mph. Morning calm is the rule; by mid-day, exposure increases dramatically. Snow persists into early summer; frozen mornings are routine even when lower elevations have warmed.
Over the past 30 days, Simmons Peak has averaged a NoGo Score of 34, with wind averaging 13 mph and temperatures holding at 21 degrees Fahrenheit. The peak swung from a minimum score of 6 to a maximum of 50, showing volatile spring conditions typical of high-Sierra transitions. Expect the week ahead to track that volatility: calm windows will narrow as thermal heating picks up, but snow stability and wind direction remain the dominant planning variables.
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About Simmons Peak
Simmons Peak sits at 12480 feet on the crest of the Yosemite corridor's high Sierra. Access is primarily from the Highway 120 corridor east of Yosemite Valley. The peak occupies exposed ridgeline terrain with minimal shelter; it is one of the higher named summits on the eastern Sierra crest between Tioga Pass and the Mono Basin. Most approaches involve cross-country travel or scrambling from nearby passes. Winter and spring approaches require avalanche-terrain awareness and winter mountaineering skills. The peak's popularity remains low (base popularity 0.2); it receives light use compared to named summits in the Yosemite frontcountry.
Simmons Peak climate is ruthless. The 365-day temperature range spans from 8 degrees Fahrenheit to 34 degrees Fahrenheit; the 30-day average temperature of 21 degrees is typical of spring transition. Maximum wind speed over the past year reached 37 mph; the 30-day average wind of 13 mph understates the afternoon pattern, where ridge gusts are routine. Crowding averages only 3 on the 0 to 10 scale, reflecting both low base popularity and the technical commitment required. Snowpack persists well into spring; approaching early in the day is non-negotiable for safe travel and avalanche-terrain assessment.
Simmons Peak suits experienced mountaineers and ski mountaineers in spring and early summer. This is not a hiking destination; it demands winter travel skills, avalanche literacy, and route-finding ability. Visitors plan around early-morning windows before thermal heating destabilizes snowpack and wind accelerates. The peak's exposure to afternoon ridge winds makes afternoon ascents and descents riskier than morning efforts. Parking near the Highway 120 corridor can be limited during spring weekends when backcountry access is heaviest; arriving before dawn is standard practice for serious parties.
The Yosemite corridor holds several high-country alternatives at similar elevation. Nearby peaks along the same crest offer comparable conditions and lower crowding. The contrast is stark with lower Yosemite Valley valleys to the west, which warm faster and hold less snow. Simmons Peak's advantage is precise: it offers true high-alpine exposure with minimal tradeoff in popularity. Late-spring conditions (when snowpack consolidates but remains stable) create a narrow window where the peak transitions from winter mountaineering to early-season ski mountaineering terrain.