Hammil Lake
Lake · 10,006 ft · Mammoth Lakes corridor
Hammil Lake sits at 10,006 feet in the Mammoth Lakes corridor of the eastern Sierra Nevada. This high-elevation alpine lake offers straightforward access and typically lighter crowds than lower basins.
Wind averages 12 mph and accelerates through afternoon hours, funneling off the exposed water by mid-day. Temperature hovers around 31 degrees Fahrenheit on average. Morning calm breaks by late morning; skip midday exposure if you're paddling or fishing.
Over the last 30 days, Hammil Lake averaged a NoGo Score of 37.0 with temperatures around 31 degrees Fahrenheit and wind at 12 mph average. Gusts have peaked at 31 mph. The week ahead should track the typical spring pattern: colder mornings, afternoon wind ramp, variable crowding tied to regional access openings.
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About Hammil Lake
Hammil Lake drains the high basins between Mammoth Lakes and the Sierra crest at 10,006 feet elevation. Access is via the Mammoth Lakes corridor, typically approached from US Highway 395 near Mammoth Junction. The lake sits in avalanche terrain; assess snowpack stability and approach routes before winter or early-spring visits. Winter approach requires travel across steep, unstable slopes; late spring and summer offer safer passage as snow consolidates or melts entirely.
Spring conditions at Hammil Lake are marked by cold, stable temperatures averaging 31 degrees Fahrenheit and persistent wind. The 30-day average wind speed of 12 mph climbs substantially in afternoon hours, with gusts to 31 mph recorded in recent weeks. Crowding remains minimal; the lake sits remote enough that few casual visitors access it even on weekends. Late spring through early autumn sees the most reliable weather and the highest (but still modest) visitor traffic.
Hammil Lake suits hikers comfortable with high-elevation travel, backcountry anglers targeting alpine trout, and skiers or snowshoers seeking solitude in spring and early-season conditions. The lake's exposure to afternoon wind makes morning visits mandatory for paddlers; afternoon crossings risk difficult conditions and fast-changing exposure. Bring layers; temperature swings from morning freeze to midday thaw are sharp at this elevation. Avalanche awareness is non-negotiable in winter and early spring.
Nearby Mammoth Lakes basin offers more developed campgrounds and easier vehicle access, though higher crowding. Mount Ritter and Banner Peak dominate the western skyline from Hammol Lake and anchor the Sierra crest hiking routes. The Inyo National Forest surrounds this zone; permits and trailhead registration are managed through Mammoth Lakes Visitor Center on Highway 203.