Lock Jaw
- 5.9+
- grade
- Top Rope
- style
- Apr–Oct
- best months
One of seven routes catalogued at Eastern in the Route 9 Boulder sector, spanning from Easy 5th to 5.10a. This line is set up as a toprope with no lead protection recorded. First ascent by a monkey.
- Nearby · The Estate · Cuba Boulder · Temple Area
Best time to go · Apr–Oct
Best time to visit Lock Jaw
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.
Jan
37° / 19°
Feb
40° / 21°
Mar
47° / 28°
Apr
59° / 38°
May
69° / 48°
Jun
79° / 58°
Jul
85° / 64°
Aug
83° / 63°
Sep
75° / 55°
Oct
64° / 43°
Nov
53° / 34°
Dec
42° / 26°
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Jamaica Plain, MA, 3.5 mi away at 95 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
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