Based on the Köppen climate classification, Snowpatch Crag is located in a subpolar oceanic climate zone, with long, cold, wet winters, and cool summers.[6] Weather systems coming off the Gulf of Alaska are forced upwards by the Coast Mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall. Temperatures can drop below −20 °C with wind chill factors below −30 °C. The months May and June offer the most favorable weather for viewing this peak.
^Dictionary of Alaska Place Names, Donald J. Orth author, United States Government Printing Office (1967), page 894.
^Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11. ISSN1027-5606.