Washington · Rock climbing · Tumtum

Thunder Dome

Thunder Dome in Washington has 6 climbing routes spanning 5 difficulty grades.

6 routes
5.10c/d – 5.12+
Sport · Trad

Best time to visit Thunder Dome

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

    33° / 23°

    14 wet

  2. Feb

    38° / 24°

    11 wet

  3. Mar

    48° / 29°

    12 wet

  4. Apr

    57° / 34°

    10 wet

  5. May

    66° / 41°

    10 wet

  6. Jun

    72° / 46°

    8 wet

  7. Jul

    83° / 52°

    4 wet

  8. Aug

    83° / 51°

    3 wet

  9. Sep

    73° / 43°

    5 wet

  10. Oct

    57° / 34°

    10 wet

  11. Nov

    41° / 27°

    13 wet

  12. Dec

    32° / 22°

    14 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Spokane Wfo, WA, 12.4 mi away at 2,392 ft. The station sits about 500 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.

Thunder Dome is a climbing area in Washington, about 4.6 miles from the town of Long Lake. It sits among a cluster of other climbing spots, with Five Fun Wall, Quadra Crack Wall and Little Matterhorn Rock all about 0.1 mile away, and Banana Split Dome about 0.2 mile off. The area is a compact hub of rock, with several climbing routes within a short distance of one another. The climbing here is sport and trad, with sport routes making up the majority. The grades run from 5.10c/d up to 5.12+, with Furiosa at 5.10c/d and War Boy at 5.11a as two of the sport options. The trad routes include Mad Max at 5.11 and TBD (open project) at 5.12+. Summer is the most comfortable time to visit. Typical averages from a nearby weather station show July and August highs around 83°F with only three or four wet days a month, while winter highs stay in the low 30s. Paddlers can find the Spokane River about 2.9 miles away, and Chamokane Creek is roughly 9 miles off.