Uncle Jamie Boulder
Uncle Jamie Boulder in California has 5 bouldering routes spanning 5 difficulty grades.
- 5 routes
- V0 – V2
- Bouldering
Is Uncle Jamie Boulder open right now?
Closure in the area
There's a closure order in Mountaintop Ranger District. It doesn't name Uncle Jamie Boulder, so check the source for the area it covers.
Radford Fire Closure Area
Agency closure covering Mountaintop Ranger District · Order 05-12-52-24-06 · USFS · Mountaintop Ranger District
Safety Alert - Falling Rocks at Bonita Falls
Agency alert covering San Bernardino National Forest · USFS · San Bernardino National Forest
Fire Restrictions
Agency alert covering San Bernardino National Forest · Order 05-12-00-26-05 · USFS · San Bernardino National Forest
As of · Source: USFS · Mountaintop Ranger District. Agencies don't list every closure — check before you go.
Best time to visit Uncle Jamie Boulder
Best months: May–October. 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
46° / 24°
6 wet
Feb
46° / 24°
6 wet
Mar
51° / 27°
6 wet
Apr
57° / 31°
4 wet
May
66° / 37°
2 wet
Jun
75° / 43°
1 wet
Jul
80° / 50°
2 wet
Aug
79° / 49°
3 wet
Sep
73° / 44°
2 wet
Oct
63° / 35°
2 wet
Nov
53° / 28°
3 wet
Dec
46° / 24°
6 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Big Bear Lake, CA, 4.7 mi away at 6,753 ft. The station sits about 600 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.
Uncle Jamie Boulder is a climbing area in the Mountaintop Ranger District of San Bernardino National Forest, managed by the Forest Service. It sits among a cluster of bouldering spots in the high country of San Bernardino, a few hundred yards from Camp Boulders and Parking Lot Rock. Summer and early fall are the mildest times to visit. Typical averages from the nearby Big Bear Lake weather station run from highs near 75°F in June to about 80°F in July, with September easing to around 73°F. Winters there are cold, with January highs averaging about 46°F. The closest neighbors are Camp Boulders and Parking Lot Rock, both about 0.1 mile away. Tanglewood Group Camp is 1.1 miles off, and Van Dusen Canyon Spur is 1.2 miles away.
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