Summit Block

Is Summit Block open right now?

Alert in the area

The Forest Service lists 3 alerts for Arapaho and Roosevelt National Forests.

• Fire Restrictions

  Agency alert covering Arapaho and Roosevelt National Forests · USFS · Arapaho and Roosevelt National Forests

• Caribou Road Closure Order

  Agency alert covering Boulder Ranger District · Order 02-10-01-26-04 · USFS · Boulder Ranger District

• Raptor Nesting Area Closure - Boulder Ranger District

  Agency alert covering Boulder Ranger District · Order 02-10-01-26-06 · USFS · Boulder Ranger District

As of Oct 22, 11:55 pm MDT · Source: USFS · Arapaho and Roosevelt National Forests. Agencies don't list every closure — check before you go.

Best time to visit Summit Block

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, 13.6 mi away at 5,484 ft. The station sits about 1,200 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.