Clo Cow Half Marathon
Race Day Weather
Cool start, gradual warming
Runners will face a temperature range starting at 43°F and reaching 51°F by race's end. With light winds from the NE, the first few miles will benefit from a tailwind, helping to ease the early climbs. However, runners should prepare for headwinds from miles 10 to 13 as they navigate the rolling terrain. Given the average humidity of 72%, starting conservatively is advisable to manage effort and hydration.
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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.
