California · Rock climbing · Running Springs

Shirtsleeve Rock

Shirtsleeve Rock in California has 9 climbing routes across 7 grades, offering bouldering, sport, and trad.

9 routes
5.7 – 5.10c
Trad · Sport · Bouldering

Is Shirtsleeve Rock open right now?

Closure in the area

There's a closure order in Mountaintop Ranger District. It doesn't name Shirtsleeve Rock, so check the source for the area it covers.

As of · Source: USFS · Mountaintop Ranger District. Agencies don't list every closure — check before you go.

Best time to visit Shirtsleeve Rock

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.

  1. Jan

    46° / 24°

    6 wet

  2. Feb

    46° / 24°

    6 wet

  3. Mar

    51° / 27°

    6 wet

  4. Apr

    57° / 31°

    4 wet

  5. May

    66° / 37°

    2 wet

  6. Jun

    75° / 43°

    1 wet

  7. Jul

    80° / 50°

    2 wet

  8. Aug

    79° / 49°

    3 wet

  9. Sep

    73° / 44°

    2 wet

  10. Oct

    63° / 35°

    2 wet

  11. Nov

    53° / 28°

    3 wet

  12. Dec

    46° / 24°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Big Bear Lake, CA, 8.2 mi away at 6,753 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Shirtsleeve Rock is a climbing area in the Mountaintop Ranger District of San Bernardino National Forest in California, managed by the Forest Service. It sits among a cluster of climbing spots, with The Fins and Hungover Wall - Right Side both about 0.1 mile away. The area has nine routes, with five trad climbs, three sport routes and one boulder problem. Grades run from 5.7 to 5.10c, and the hardest route is Collared, a sport climb at 5.10c. Among the trad routes are No Little Thing at 5.7 and No Shirtsleeves Needed at 5.8. Summer is the warmest stretch. Typical averages from the nearby Big Bear Lake weather station, about 8 miles away, show July highs around 80°F with lows near 50°F, while winter highs sit in the mid-40s. Shady Cove Group Campground and the Trail of the Phoenix are each about half a mile away. Arrowbear Lake and Green Valley Lake are both within about 3 miles.