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Summit

Lyons Peak

California

About

Lyons Peak is a summit of 3,737 feet in the Descanso Ranger District of Cleveland National Forest, managed by the Forest Service. The nearest town is Jamul, about 6 miles away. Spring and late fall are the most comfortable times to go. Typical averages from the nearby Campo weather station show April highs around 73°F with lows near 38°F, and November highs around 71°F. Summer highs climb into the 90s, and the station sits well below the peak, so temperatures on top run cooler. Hollenbeck, a climbing area, is about 1.4 miles away. The Daley Ranch Truck Trail and Mother Grundy Truck Trail are both within about 3.5 miles. Gaskill Peak, another hike, is roughly 3.8 miles off.

Summit Facts

Summit elevation

3,737 ft

Land manager

Forest Service

Elevation from USGS 3D Elevation Program terrain data (about 10 m resolution).

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Location

Lyons Peak

California

Name and location: U.S. Geological Survey, Geographic Names Information System (GNIS). Elevation: USGS 3D Elevation Program. View the GNIS record.

Facts about this place

When to go

Best time to go: Oct–May. The mildest months here, with typical highs of 63–80°F and lows of 33–43°F.

Typical monthly averages (not a forecast) from the Campo, CA weather station, 18 mi away. High / low in °F, and days with snow.

  1. Jan64° high35° low
  2. Feb64° high35° low
  3. Mar68° high36° low
  4. Apr73° high38° low
  5. May79° high42° low
  6. Jun88° high45° low
  7. Jul94° high53° low
  8. Aug95° high54° low
  9. Sep90° high50° low
  10. Oct80° high43° low
  11. Nov71° high37° low
  12. Dec63° high33° low

The station sits about 1,100 ft lower than this spot, so expect it to run cooler up here.

Source: NOAA NCEI U.S. Climate Normals 1991–2020

Where it is

Nearest town
Jamul, California · 6.3 mi
Managed by
Forest Service

Source: USFS EDW boundaries; USGS PAD-US 4.1; USGS GNIS populated places

Conditions

Active alerts for Cleveland National Forest as of Oct 9, 2026:

Source: USFS forest alerts

Nearby

Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)