Map of Average Annual Snowfall in Contiguous U.S. A map of average annual snowfall in the contiguous U.S. visually explained.ย Dark red zones on this map are where we want to be! The Dark Red Zones: Sierra Nevada Range, CA/NV Teton Range, WY Wasatch Range, UT Front Range, CO Cascade Range, OR & WA Related: NOAA April 2021 Outlook: Warmer and Drier Than Normal For Majority of Country Brains SnowBrains | March 25, 2021 4 Comments