Dam Marathon (WA)
Race Day Weather
Cool start, warming up quickly
Runners will face temperatures starting at 43°F and rising to 64°F by the finish. Winds will be light at 5 mph, primarily headwind from miles 1 to 12 and again from miles 14 to 21, affecting pacing. Given the temperature increase, starting conservatively is advisable, especially in the early miles, while keeping hydration strategies in mind as conditions warm.
This course drops 1,220 ft from start to finish, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 43° and finish around 10:55 AM in 63°; typical start-line conditions say 59° then.
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