California · Rock climbing · Lucerne Valley

Warmup Boulder

Warmup Boulder in California has 17 bouldering routes across 14 grades.

17 routes
V0 – V8
Bouldering

Best time to visit Warmup 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.

  1. Jan

    58° / 33°

    4 wet

  2. Feb

    61° / 36°

    4 wet

  3. Mar

    67° / 40°

    4 wet

  4. Apr

    73° / 44°

    2 wet

  5. May

    81° / 51°

    1 wet

  6. Jun

    91° / 58°

    0 wet

  7. Jul

    98° / 64°

    1 wet

  8. Aug

    97° / 63°

    1 wet

  9. Sep

    91° / 58°

    1 wet

  10. Oct

    79° / 47°

    1 wet

  11. Nov

    67° / 38°

    2 wet

  12. Dec

    57° / 32°

    4 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Victorville, CA, 19.5 mi away at 2,880 ft. The station sits about 1,000 ft lower than this place, so expect it a little cooler here. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Warmup Boulder is a climbing area on Bureau of Land Management land within the Barstow Field Office in California. It sits among a cluster of other climbing spots, so it works well as a stop in a day of bouldering in this part of the field office. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Victorville show April highs around 73°F and October highs around 79°F, while July and August average in the upper 90s. That station sits about 1,000 feet lower than the boulders, so temperatures up here run cooler. The closest neighbors are Porno Pinnacle and House of the Setting Sun (aka The Ammo Dump), each about 0.1 mile away, and Dead Bolt Wall at about 0.3 mile. For an overnight stay, Sawtooth Canyon Campground is about 0.6 mile away.

Routes (17)