Typical Run Score
69
Good
Salt Lake City · December
Typical December running conditions in Salt Lake City — and a live Run Score so you can see how today compares with the norm.
Typical Run Score
69
Good
Avg temperature
31°F
Cold
Avg dew point
23°F
Comfortable
Best window
11 AM–5 PM
Local time
December ranks 9th of 12 months for running in Salt Lake City, with a typical daytime Run Score of 69 (Good). For reference, the best month is October (score 90) and the hardest is July (score 64). The kindest window in December is typically 11 AM–5 PM. Precipitation falls in roughly 18% of hours this month. Use the live tool below to see how today actually compares with the December norm.
Same engine, different climate. Check the best time to run in these cities too.
Generally yes, with sensible timing. The typical daytime Run Score is 69 (Good), with temperatures around 31°F (0°C) and comfortable dew points. The best window is usually 11 AM–5 PM.
Typical temperatures average 31°F (0°C) (Cold) with dew points near 23°F. Dew point — not the thermometer — usually decides how hard the run feels.
Scores run 0–100. 97+ is Perfect, 80–96 is Great — conditions are actively working in your favour. 65–79 (Good) is solid. 45–64 (Mixed) means at least one factor — usually heat or dew point — is taxing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.
Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.
RunWeather syncs with Strava, plans your week, and learns your heat tolerance — so the right time to run finds you.