Trumbull Peak
Peak · 4,990 ft · Yosemite corridor
Trumbull Peak, a 4990-foot summit in the Yosemite corridor, sits in avalanche terrain with moderate exposure to afternoon wind. Typically calmer in early morning.
Wind averages 7 mph but can gust to 22 mph by mid-afternoon, funneling off nearby ridges and water. Morning calm breaks by noon. Snow lingers into late spring; assess slope stability before ascending steep sections.
Over the last 30 days, Trumbull Peak averaged a NoGo Score of 32 with temperatures around 50 degrees Fahrenheit and average wind of 7 mph, making it a marginal proposition on most days. The week ahead will show whether morning windows persist or afternoon gusts dominate. Watch for rapid wind escalation after 11 a.m. and wet-snow instability during warming cycles.
30 days back / 7 days forward
Today's score by factor
About Trumbull Peak
Trumbull Peak is a 4990-foot summit in the Yosemite corridor of California's High Sierra, approached from the eastern Sierra via Highway 395 and the June Lake Loop or Highway 120 from the west. The peak sits in avalanche terrain managed by the Sacramento Avalanche Center. Access typically requires a high-clearance or four-wheel-drive vehicle in winter and early spring, with parking at the trailhead limited to 5 to 10 spaces. The nearest gateway is June Lake, about a 30-minute drive south; Yosemite's Tioga Road (Highway 120) provides the western approach but closes seasonally.
Conditions at Trumbull Peak are dominated by afternoon wind, with a 30-day average of 7 mph but peak gusts reaching 22 mph. Temperature ranges from 38 to 68 degrees Fahrenheit across the year, with the coldest readings from late November through March and warmest in mid-July to mid-August. Spring (April to May) brings rapid warming and wet-snow instability; avalanche terrain here is active during snow loading and above-freezing cycles. Crowding stays minimal at a 30-day average of 3 out of 10, rising slightly during clear weekends in summer and autumn. Morning conditions are substantially calmer than afternoon.
Trumbull Peak suits experienced scrambblers and skiers comfortable with avalanche terrain and self-assessment. The peak is best visited on calm mornings from late June through September, when snow is absent or minimal and afternoon wind is most predictable. Winter and spring ascents demand current avalanche observations from the Sacramento Avalanche Center and familiarity with the specific slope angles and wind-slab characteristics of this location. Parking fills quickly on weekends; arrive before 7 a.m. to secure a spot. Skip the descent after noon if wind is already rising.
The June Lake Loop offers gentler alternatives at lower elevation if Trumbull Peak's exposure or avalanche terrain exceed your comfort. Mount Dana (13,053 feet) and Mount Gibbs (12,773 feet) sit on the same Highway 395 corridor but face different aspects and wind regimes. Yosemite's Cathedral Range to the west presents similar elevations and summer conditions but more crowding and longer approach times from valley towns.