Rim Rock Marathon
Race Day Weather
Cold start — layer up, big temp swing
Runners will start in chilly 36°F conditions — dress in layers for the corral and plan to shed early. Temps will climb significantly to 58°F by later miles, so expect fading conditions as the race progresses.
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Race Info
The Rim Rock Marathon and Half Marathon run along Rim Rock Drive through Colorado National Monument between Grand Junction and Fruita, Colorado. First held in 1997, the race is organized by the Grand Junction Sports Commission and finishes at Fruita's Circle Park. The 2025 edition (the 29th annual) drew nearly 600 finishers, its largest field to date.
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | 42°/65° | - | 23° | ||
2024 | 44°/50° | Light | 36° | ||
2023 | 45°/64° | - | 29° | ||
2022 | 41°/51° | - | 36° |