California · Bouldering · Chatsworth

Slump Arete

One of five routes at Pump Rock, at the lower end of the crag's grade range.

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Best time to visit Slump Arete

Best months: October–June. 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

    67° / 47°

    6 wet

  2. Feb

    68° / 47°

    7 wet

  3. Mar

    71° / 49°

    5 wet

  4. Apr

    75° / 52°

    3 wet

  5. May

    78° / 56°

    1 wet

  6. Jun

    84° / 60°

    1 wet

  7. Jul

    90° / 64°

    0 wet

  8. Aug

    92° / 64°

    0 wet

  9. Sep

    89° / 62°

    1 wet

  10. Oct

    82° / 56°

    2 wet

  11. Nov

    74° / 50°

    4 wet

  12. Dec

    67° / 46°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Northridge Cal State, CA, 4.9 mi away at 904 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

One of five routes catalogued at Pump Rock, this climb sits at the lower end of the grade range established at the crag.

Photo of the crag

Pump Rock — the crag this route is on
Pump Rock, California — this photo shows the crag, not this individual route.Photo: jxson, CC BY 2.0 (via Flickr)

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