Clo Cow Half Marathon
Race Day Weather
Cool start, gradual warm-up
Runners will face a starting temperature of 55°F, rising to 63°F by the finish. Humidity levels will be around 70%, which may feel sticky as the race progresses. With light winds at 6 mph from the W, runners should maintain a steady pace and stay hydrated throughout the event.
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Race Info
The Clo Cow Half Marathon is an annual road race held in Petaluma, California, with half marathon, 10K, and 5K distances. The out-and-back half marathon course starts and finishes on Kentucky Street in historic downtown Petaluma and runs through Sonoma County farmland and rolling hills. Spectators along the rural stretch include sheep, horses, and cows, and finishers receive a cowbell medal. The race benefits the Petaluma Educational Foundation.
