300 Hours
The hardest climb catalogued at Med School Right.
- 5.10a
- grade
- Sport Bolted
- style
Best time to visit 300 Hours
Best months: October–April. 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
63° / 41°
7 wet
Feb
68° / 45°
7 wet
Mar
74° / 52°
8 wet
Apr
80° / 58°
7 wet
May
87° / 66°
8 wet
Jun
92° / 73°
7 wet
Jul
95° / 75°
5 wet
Aug
96° / 75°
5 wet
Sep
90° / 70°
7 wet
Oct
82° / 60°
6 wet
Nov
72° / 50°
7 wet
Dec
65° / 42°
7 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at San Antonio Intl Ap, TX, 5.8 mi away at 789 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
This route represents the upper end of the grade span at Med School Right, where five climbs have been catalogued in the 5.6 to 5.10a range.
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