Clo Cow 10K
Race Day Weather
Cool start — fast day potential, big temp swing
A cool 43°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 72°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 66% is worth noting for effort level, especially in later miles.
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Race Info
The Clo Cow 10K starts and finishes on Kentucky Street in Historic Downtown Petaluma, on the same Sunday morning as the half marathon. Runners turn left onto Western Avenue and head quickly into Sonoma County farm country, passing the 5K turnaround on Chapman Lane before continuing out to their own turnaround and returning the same way. The out-and-back route runs on rural roads outside downtown.
