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Best Time to Hike O'Neil Pass Trail

wb_sunny Best from July to July
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Month-by-month temperatures and rainfall for O'Neil Pass Trail, United States, based on 2-year climate normals.

Units

Month-by-month weather on O'Neil Pass Trail

Month Avg high Avg low Rainfall Rainy days
January 33°F1°C 19°F-7°C 359 mm 17
February 30°F-1°C 17°F-8°C 297 mm 18
March 35°F1°C 20°F-6°C 399 mm 20
April 40°F4°C 22°F-6°C 137 mm 13
May 45°F7°C 26°F-3°C 76 mm 13
June 53°F12°C 33°F1°C 71 mm 10
July 65°F19°C 44°F7°C 27 mm 5
August 63°F17°C 44°F7°C 90 mm 10
September 60°F16°C 42°F5°C 80 mm 10
October 44°F7°C 30°F-1°C 281 mm 16
November 35°F2°C 25°F-4°C 433 mm 20
December 35°F2°C 24°F-5°C 600 mm 23

Highlighted rows are the recommended hiking window. Climate normals via Open-Meteo (2-year average). Mountain weather varies — always check a live forecast before you set off.

When to go

The best months to hike O'Neil Pass Trail are July. Expect daytime highs around 66°F19°C and nights near 45°F7°C.

Pack flexible layers and a reliable rain shell — conditions can shift quickly in the mountains.

O'Neil Pass Trail

Full route guide, interactive map and free GPX download.

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