Massachusetts · Hiking

Green Diamond

Green DiamondPhoto: clembore, CC BY-SA 2.0 (via Flickr)
0.5 mi
round trip
139 ft
climb
373 ft
high point
Out and back
route
Apr–Oct
best months

Green Diamond is an easy out-and-back hike in Massachusetts, about half a mile from Ashland. The route is roughly a mile long, with a steady climb that reaches a high point of 373 feet and a low of 325 feet, for a total gain and loss of about 140 feet each way. The steepest stretch comes near the 0.3-mile mark, with a grade of about 5%. Late spring and early fall are the most comfortable times to go. Typical averages from the Natick weather station, about 7 miles away and roughly 200 feet lower, show May highs around 68°F and September highs near 73°F, while July climbs to about 82°F and January highs sit near 35°F. The hike takes about half an hour. Red Diamond and Blue Diamond are each about 0.6 miles away, and Yellow Diamond is about a mile off. Hopkinton State Park, a climbing area, is about 2 miles away.

  • Best time to go · Apr–Oct

    Best time to visit Green Diamond

    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, 7.3 mi away at 180 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

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Map and trail data © OpenStreetMap contributors