Lilly's Boulder
Lilly's Boulder in Idaho has 5 bouldering routes across 4 grades.
- 5 routes
- V2 – V6
- Bouldering
Best time to visit Lilly's Boulder
Best months: May–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
28° / 12°
10 wet
Feb
32° / 14°
7 wet
Mar
44° / 23°
7 wet
Apr
55° / 31°
8 wet
May
65° / 39°
9 wet
Jun
73° / 45°
7 wet
Jul
83° / 50°
4 wet
Aug
83° / 49°
4 wet
Sep
73° / 41°
4 wet
Oct
58° / 32°
6 wet
Nov
41° / 22°
8 wet
Dec
29° / 13°
10 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Saint Anthony, ID, 7.5 mi away at 4,910 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Lilly's Boulder is a bouldering area in Idaho, about 3.5 miles from the town of Newdale. It sits among several other climbing areas in the same part of the state, with Teton Dam (Lower Teton River Canyon) and Power Box Boulders each about 0.1 mile away. The Bureau of Reclamation manages the land. The area is a cluster of boulders with five named routes, all rated from V2 to V6 on the V scale. The easiest are Joel's Traverse and Lilly's Mantle at V2, and the hardest is Kendra's Crawl at V6. The most comfortable climbing weather typically comes in July and August, when typical highs reach about 83°F with lows near 50°F, based on averages from a nearby weather station in Saint Anthony. September stays mild, with highs around 73°F and only about four wet days. Winter is cold, with typical January highs near 28°F.
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