California · Rock climbing · Clayton

North Lump

North Lump in California has 6 sport climbing routes on 4 difficulty grades.

6 routes
5.10b – 5.11c
Sport

Best time to visit North Lump

Best months: February–November. 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

    54° / 42°

    11 wet

  2. Feb

    55° / 42°

    11 wet

  3. Mar

    58° / 43°

    10 wet

  4. Apr

    62° / 44°

    7 wet

  5. May

    68° / 49°

    4 wet

  6. Jun

    76° / 55°

    1 wet

  7. Jul

    82° / 62°

    1 wet

  8. Aug

    83° / 61°

    0 wet

  9. Sep

    80° / 60°

    1 wet

  10. Oct

    72° / 54°

    4 wet

  11. Nov

    60° / 46°

    7 wet

  12. Dec

    53° / 41°

    11 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Mt Diablo Junction, CA, 3.1 mi away at 2,170 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

North Lump is a climbing area in Mount Diablo State Park in California, managed by State Park and Recreation. It sits within the park's network of climbing spots, and the closest neighbor is Wanna Get Away Crag, about 0.1 mile away. Late spring and early fall are the most comfortable times to visit. Typical averages from a nearby weather station at Mt Diablo Junction show May highs around 68°F and October highs around 72°F, with only a few wet days in each month. Summer runs warmer, with August highs near 83°F, and winter brings the most rain, about 11 wet days a month from December through February. Several trails start close by. Oyster Point Trail is about 0.2 mile away and Knobcone Point Trail about 0.9 mile. Devil's Slide Trail and Madrone Canyon Trail are each about 1.2 miles off.

Routes (6)

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