Colorado · Rock climbing · Boulder

Bulge Boulder

Bulge Boulder in Colorado has 6 bouldering routes across 5 grades.

Bulge BoulderPhoto: kalestews, CC BY 2.0 (via Flickr)
6 routes
V1 – V7+
Bouldering

Best time to visit Bulge Boulder

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, 1.3 mi away at 5,484 ft. The station sits about 900 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.

Bulge Boulder is a climbing area in NCAR Park, a city-managed park in Colorado, about a mile from Boulder. The land is city property, and the park sits close to town, making it an easy stop for climbers and hikers alike. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Boulder show May highs around 71°F and September highs around 79°F, while July averages climb to about 88°F and winter lows dip to about 21°F. The Mallory Cave Trail and Mesa Trail both start about 0.1 mile away, and Hillbilly Rock and Ridge 1 (Stairway to Heaven) are each about 0.2 mile off. For a longer outing, Boulder Creek offers canoeing about 2.5 miles away.

Routes (6)

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