Unknown Boulder
One of two routes catalogued at Grand Central Station.
- V2
- grade
- Bouldering Pads
- style
Best time to visit Unknown Boulder
Best months: October–June. 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.
Jan
68° / 38°
6 wet
Feb
68° / 39°
7 wet
Mar
69° / 41°
6 wet
Apr
73° / 43°
4 wet
May
77° / 49°
2 wet
Jun
84° / 52°
1 wet
Jul
90° / 57°
0 wet
Aug
92° / 59°
0 wet
Sep
90° / 55°
1 wet
Oct
82° / 49°
2 wet
Nov
74° / 43°
3 wet
Dec
67° / 37°
5 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Ramona Fire Dept, CA, 3.5 mi away at 1,470 ft. The station sits about 800 ft lower than this place, so expect it a little cooler here. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
One of only two climbs catalogued at Grand Central Station in this grade system.
Photo of the crag
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