USDA Forest Service · California

Sulphur Springs Campground

USDA Forest Service · California, United States · in San Gabriel Mountains National Monument

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Cost
No fees are required for this site
Drinking water
No
Restrooms
Yes
Elevation
5,410 ft
Dark sky
Bortle class 4
Cell coverage
T-Mobile none · AT&T none · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
Nearest town
La Ca¿¿ada Flintridge, CA

About

US Forest Service campground. Pack out what you pack in. Not reservable through Recreation.gov, so plan on first-come, first-served; check with the ranger district for current conditions and fees.

Weather, month by month

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January53°37°25°71°5 of 11
February52°35°20°73°7 of 11
March53°37°23°82°6 of 11
April61°41°29°77°3 of 11
May70°47°33°85°0 of 11
June81°55°40°99°0 of 11
July86°62°52°96°0 of 11
August85°62°54°96°0 of 11
September79°57°45°89°0 of 11
October72°50°36°85°0 of 10
November63°44°28°75°3 of 10
December55°38°26°68°3 of 10

Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.

Nearby campgrounds

All public campgrounds in California · Every state and province · Facts read from the operator 2025-12-22. Confirm fees, rules and current status with the operator before you go.