Massachusetts · Rock climbing · Needham

Rainbow Rocks

10 routes
5.7 – 5.11a
Bouldering
Apr–Oct
best months

Rainbow Rocks is a bouldering area in Massachusetts, about half a mile from Needham Junction. It sits among a cluster of climbing and riding spots, with Ship's Prow Boulder just 0.1 mile away and Illusive Cliff and Needham Town Forest within a third of a mile. The area is a bouldering destination, with 10 routes listed, all of them boulders. The grades run from V0 to V2+ on the V scale and from 5.7 to 5.11- on the YDS scale. Among the named routes are Above the Flag at 5.7 and Armageddon Clock at 5.11a. Summer is the warmest stretch for a visit. Typical averages from the nearby Natick weather station put July highs around 82°F with lows near 62°F, while September cools to highs in the low 70s.

  • Best time to go · Apr–Oct

    Best time to visit Rainbow Rocks

    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

      35° / 17°

      10 wet

    2. Feb

      38° / 18°

      9 wet

    3. Mar

      46° / 25°

      10 wet

    4. Apr

      58° / 35°

      11 wet

    5. May

      68° / 46°

      12 wet

    6. Jun

      76° / 56°

      11 wet

    7. Jul

      82° / 62°

      10 wet

    8. Aug

      80° / 59°

      10 wet

    9. Sep

      73° / 52°

      9 wet

    10. Oct

      62° / 40°

      11 wet

    11. Nov

      51° / 31°

      10 wet

    12. Dec

      41° / 23°

      11 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Natick, MA, 4.7 mi away at 180 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Routes (10)