California · Rock climbing · Pioneer

Hammer Dome

Hammer Dome in California has 11 climbing routes across 8 grades, featuring mixed, sport, and trad styles.

11 routes
5.7 – 5.11a
Trad · Mixed · Sport

Is Hammer Dome open right now?

Closure in the area

There's a closure order in Stanislaus National Forest. It doesn't name Hammer Dome, so check the source for the area it covers (2 listed).

As of · Source: USFS · Stanislaus National Forest. Agencies don't list every closure — check before you go.

Best time to visit Hammer Dome

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

    45° / 30°

    11 wet

  2. Feb

    46° / 30°

    11 wet

  3. Mar

    49° / 32°

    11 wet

  4. Apr

    54° / 35°

    8 wet

  5. May

    63° / 42°

    6 wet

  6. Jun

    73° / 49°

    2 wet

  7. Jul

    81° / 56°

    1 wet

  8. Aug

    80° / 55°

    1 wet

  9. Sep

    74° / 51°

    2 wet

  10. Oct

    64° / 43°

    4 wet

  11. Nov

    52° / 34°

    7 wet

  12. Dec

    44° / 30°

    11 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Calaveras Big Trees, CA, 15.5 mi away at 4,695 ft. The station sits about 800 ft higher than this place, so expect it a little warmer here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Closures we've recorded since August 2026

  • Fire Restrictions are in Effect Forest Wide

    Eldorado National Forest · Order dated September 22, 2026; seen Aug 23, 2026, no lift recorded · Forest Service

Hammer Dome is a climbing area in the Calaveras Ranger District, where the Forest Service manages land that crosses Eldorado National Forest and Stanislaus National Forest. The closest neighbors are Calaveras Dome and the North Face Apron, both about 0.3 miles away. Summer is the most comfortable time to visit. Typical averages from a nearby weather station show July highs around 81°F with lows near 56°F, and only about one wet day a month from June through September. That station sits roughly 800 feet lower than the dome, so expect temperatures up here to run cooler. For an overnight stay, White Azalea Campground is about 1.9 miles away and Mokelumne Campground about 2.5 miles. Paddlers can reach Blue Creek, about 4.2 miles off.

Routes (11)