Colorado · Rock climbing · Boulder

Upper Y Traverse

Upper Y Traverse in Colorado has 18 bouldering routes spanning 11 difficulty grades.

18 routes
V1 – V7
Bouldering

Best time to visit Upper Y Traverse

Best months: April–June and September–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

    47° / 21°

    6 wet

  2. Feb

    48° / 22°

    7 wet

  3. Mar

    57° / 29°

    8 wet

  4. Apr

    63° / 34°

    10 wet

  5. May

    71° / 43°

    12 wet

  6. Jun

    83° / 51°

    10 wet

  7. Jul

    88° / 57°

    11 wet

  8. Aug

    86° / 55°

    10 wet

  9. Sep

    79° / 48°

    8 wet

  10. Oct

    66° / 37°

    7 wet

  11. Nov

    54° / 28°

    6 wet

  12. Dec

    46° / 21°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boulder, CO, 1.8 mi away at 5,484 ft. The station sits about 1,000 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Upper Y Traverse is a climbing area in Colorado on city-managed land, about 2 miles from the Boulder weather station that supplies its typical climate figures. Early fall tends to be the most comfortable time to climb. Typical September averages at the Boulder station run around 79°F for highs and 48°F for lows. That station sits about 1,000 feet below the area, so temperatures at the rock run cooler. Several other climbing areas sit about 0.1 mile away: King Conquerer, Pinnacle Colada and First Overhang. The Boy Scout Trail is about 0.3 mile off for anyone who wants a hike before or after a session.

Keep exploring — more climbs worth the drive