Thunder Egg Boulder
California bouldering on distinctive rounded rock formations with featured movement.
Photo: RuggyBearLA, CC BY 2.0 (via Flickr)- 5 routes
- V1 – V5-6
- Bouldering
Is Thunder Egg Boulder open right now?
Alert in the area
The National Park Service lists 3 alerts for Joshua Tree National Park.
Partial Trail Closure of West Side Loop
Park alert covering Joshua Tree National Park · NPS · Joshua Tree National Park
Inaccurate Third-Party Apps
Park alert covering Joshua Tree National Park · NPS · Joshua Tree National Park
Oasis of Mara Trail Partial Closure
Park alert covering Joshua Tree National Park · NPS · Joshua Tree National Park
As of · Source: NPS · Joshua Tree National Park. Agencies don't list every closure — check before you go.
Best time to visit Thunder Egg Boulder
Best months: October–May. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
58° / 38°
4 wet
Feb
61° / 39°
3 wet
Mar
67° / 40°
3 wet
Apr
73° / 46°
2 wet
May
82° / 52°
1 wet
Jun
91° / 59°
0 wet
Jul
96° / 66°
2 wet
Aug
96° / 68°
2 wet
Sep
89° / 60°
2 wet
Oct
80° / 50°
1 wet
Nov
66° / 41°
2 wet
Dec
58° / 34°
4 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Yucca Valley, CA, 13.1 mi away at 3,249 ft. The station sits about 800 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Thunder Egg Boulder is a climbing area in Joshua Tree National Park in California, managed by the National Park Service. It sits among a cluster of other climbing spots and trails, so it works well as a stop in a day of exploring the park's bouldering and hiking. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Yucca Valley show April highs around 73°F and October highs around 80°F, while July and August average about 96°F. A fee is charged for park activities. The closest neighbors include Voice's Crag, Erotic Dome and Mini Crag, all about 0.1 mile away, and the Boy Scout Trailhead.
Routes (5)
Facts about this crag
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