Mount Diablo State Park
About
Mount Diablo State Park is an 18,843-acre state park in California, about 2.8 miles from the town of Diablo. The land is managed by the state park agency, and the park holds nine campgrounds within its boundaries, making it a base for overnight stays as well as day visits. Late spring and early fall are the most comfortable times to go. Typical averages from a nearby weather station at Mt Diablo Junction show May highs around 68°F and October highs around 72°F, with only a few wet days in each month. Summer runs warmer, with July and August highs in the low 80s. Several trails start close by. Oak Knoll Trail and Summit Trail are each about 0.3 miles away, and Juniper Trail is about 0.4 miles off. Climbers can head to Butt Rock, roughly 1.5 miles from the park.
Park size
18,843 acres
Inside this park
Campgrounds
Location
Mount Diablo State Park
California
Data source: USGS PAD-US 4.1 (Protected Areas Database, public domain)
Facts about this place
When to go
Best time to go: Apr–Nov. The mildest months here, with typical highs of 60–83°F and lows of 44–62°F.
Typical monthly averages (not a forecast) from the Mt Diablo Junction, CA weather station, 0.9 mi away. High / low in °F, and days with snow.
- Jan54° high42° low
- Feb55° high42° low
- Mar58° high43° low
- Apr62° high44° low
- May68° high49° low
- Jun76° high55° low
- Jul82° high62° low
- Aug83° high61° low
- Sep80° high60° low
- Oct72° high54° low
- Nov60° high46° low
- Dec53° high41° low
Where it is
- Mount Diablo State Park · State park
- Nearest town
- Diablo, California · 2.8 mi
- Managed by
- State Park and Recreation
Nearby
- Oak Knoll TrailHiking0.3 mi
- Summit TrailHiking0.3 mi
- Juniper TrailHiking0.4 mi
- North Peak TrailHiking0.9 mi
- Butt RockRock climbing1.5 mi
- Lower TierRock climbing1.5 mi
- Middle TierRock climbing1.5 mi
- Walnut CreekCanoeing9.2 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
