Wasatch 100 Course

This is ideal trail running weather for the Wasatch 100 course. Temperatures climb from 47°F Monday to 58°F Tuesday with sunny skies and minimal wind — you'll have comfortable conditions without heat stress concerns. The clean avalanche bulletin (Low across all elevations, no identified problems) means snow stability isn't a factor for higher elevation sections of the route. Stream crossings are running at normal to below-normal flows with all five monitored gauges showing stable or falling trends, so water features won't present obstacles.

Snowpack depth varies significantly by elevation — 92 inches at Long Lake versus just 10 inches at Mcneil Canyon — but the falling trend at all stations indicates settled, consolidated conditions rather than active loading. This means any snow-covered sections will likely be firm and runnable rather than post-holing terrain. The 33-inch depth at Annie Springs (6,021 ft) suggests you'll encounter snow on higher sections but nothing that should require route modifications.

Daylight gives you just under 12 hours from 7:39 AM to 7:34 PM, which sets the pace requirements depending on your planned distance. For a full 100-mile effort, that means maintaining at least 8.5 miles per hour including stops. For shorter sections, you have flexibility to start later or enjoy the golden hour finish. No fire activity within 50 miles means clear air and visibility throughout the route.

Plan your start time based on distance goals — sunrise at 7:39 AM gives you maximum daylight, but temperatures won't be uncomfortably cold for a pre-dawn start if needed. Carry standard hydration for cool weather running; the moderate temperatures and low humidity mean heat stress isn't a concern, but don't underhydrate in the dry mountain air.