California · Rock climbing · Lake Arrowhead

Radon Pinnacle

Radon Pinnacle in California has 6 sport climbing routes on 4 difficulty grades.

6 routes
5.10a – 5.12c
Sport

Is Radon Pinnacle open right now?

Closure in the area

There's a closure order in Mountaintop Ranger District. It doesn't name Radon Pinnacle, 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 Radon Pinnacle

Best months: April–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

    44° / 29°

    6 wet · 1 snow

  2. Feb

    45° / 30°

    6 wet · 1 snow

  3. Mar

    52° / 32°

    6 wet · 1 snow

  4. Apr

    60° / 36°

    4 wet · 1 snow

  5. May

    67° / 41°

    2 wet

  6. Jun

    76° / 49°

    1 wet

  7. Jul

    81° / 57°

    1 wet

  8. Aug

    82° / 57°

    1 wet

  9. Sep

    74° / 52°

    1 wet

  10. Oct

    63° / 43°

    2 wet

  11. Nov

    52° / 34°

    3 wet

  12. Dec

    43° / 29°

    5 wet · 1 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Lake Arrowhead, CA, 4.6 mi away at 5,205 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Radon Pinnacle is a climbing area in the Mountaintop Ranger District of San Bernardino National Forest, managed by the Forest Service. It sits among several other named climbing spots in the district, which makes it an easy addition to a day spent exploring the area's rock. Summer and early fall are the warmest, driest stretch. Typical averages from the nearby Lake Arrowhead weather station show July and August highs around 81 to 82°F with lows near 57°F and only about one wet day a month. Winter brings highs in the low 40s and a few snow days a month. The Tub and Trading Post Pinnacle climbing areas are each about 0.1 mile away. The Pinnacles hike is about a mile off, and North Shore campground is roughly 4 miles away for an overnight stay.

Routes (6)

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