Thimble Peak
Peak · 9,803 ft · Lake Tahoe corridor
Thimble Peak is a 9,803-foot summit in the Lake Tahoe corridor of California's Sierra Nevada. Sits in exposed alpine terrain with sustained wind and avalanche slopes on approach.
Wind dominates. The 30-day average of 8 mph masks afternoon gusts that frequently top 20 mph, funneled down the eastern drainage. Temperatures hover near freezing through spring. Approach is steeper and more snow-bound than nearby lake-adjacent ridges; instability a persistent concern.
Over the past month, Thimble Peak averaged a NoGo Score of 41 with a 30-day average wind of 8 mph and temperatures near 30 degrees Fahrenheit. Conditions have ranged from excellent (score 5) to marginal (score 65). The week ahead continues that volatility. Early-morning windows before wind rise offer the best margin; plan your ascent for first light and descend before mid-afternoon.
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About Thimble Peak
Thimble Peak stands at 9,803 feet on the eastern fringe of the Lake Tahoe basin. Access is typically from the north via Highway 50 corridor, with approach via trailheads near South Lake Tahoe or the Eldorado National Forest boundaries. The peak sits in high-alpine terrain with full exposure to Sierra wind patterns. Nearest gateway communities are South Lake Tahoe (drive time roughly 45 minutes to trailhead) and Meyers. The summit offers no shelter and commands views across the basin and into the Carson Range.
Spring through early summer sees the highest variability. The 30-day average temperature of 30 degrees Fahrenheit reflects persistent snowpack and cold nights; daytime highs in the rolling 365-day data reach only 46 degrees Fahrenheit. Wind is the defining constraint. The 30-day average of 8 mph is misleading; individual gusts spike to 29 mph on exposed ridges, especially in afternoon. Crowding remains light (30-day average of 1), which reflects both the peak's technical approach and the avalanche hazard that deters casual traffic. Late-spring snowmelt opens windows in May and June, but instability lingers longer here than on lower, south-facing summits.
Thimble Peak suits experienced alpinists and skiers comfortable with avalanche terrain and sustained wind exposure. Expect to navigate cornices, wind-scoured snowfields, and potential unstable slabs on the upper approach. Park capacity at the trailhead is limited, and early arrival (before dawn) is mandatory on weekends. Bring layers; wind-chill is severe and conditions can deteriorate rapidly in afternoon. The peak is accessible year-round to those with winter climbing skills, but the April-May window is most forgiving. Descend before 1 p.m. to avoid afternoon gales.
Nearby alternatives include peaks on the Carson Range (eastern shore of Tahoe), which sit lower and often have less wind due to different slope exposure. Monument Peak and other summits in the Mokelumne Wilderness to the south offer comparable elevation but are farther from major highway access. The Lake Tahoe corridor offers hundreds of lower-elevation ridges and lake-accessible routes; compare Thimble Peak's 9,803 feet and sustained wind to lighter-traffic peaks under 9,000 feet if afternoon storms or extreme gusts are forecast.