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Race Overview
The Hoover Dam Marathon starts and finishes at Boulder Beach in Lake Mead National Recreation Area, about 18 miles from Las Vegas, Nevada. The out-and-back course follows the paved River Mountains Loop Trail and the Historic Railroad Tunnel Trail through the old railroad tunnels built in the 1930s to haul materials for Hoover Dam, then drops by switchbacks to a loop at the dam's upper parking garage before returning to Boulder Beach. Marathoners run the course twice, and the route does not cross the dam. About 14 miles of the marathon is hard-packed dirt trail, with the rest on pavement.
WikipediaFAQ
When is the 2026 Hoover Dam Marathon?
The 2026 Hoover Dam Marathon will be held on Saturday December 5, 2026.
Is the Hoover Dam Marathon a Boston Marathon Qualfier?
Yes, the Hoover Dam Marathon is an official Boston Marathon qualifier.
What is the time limit for the Hoover Dam Marathon?
The time limit for the Hoover Dam Marathon is 6.08 hours.
Hoover Dam Marathon Course Map
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Hoover Dam Marathon Weather History
Hoover Dam Marathon Weather Averages
Average Temp: 48°, Average Low: 38°, Average High: 59°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 42° | 48° | 52° | 54° | 56° | 58° | 59° |
| Feel | 41° | 47° | 51° | 53° | 56° | 58° | 59° |
| Rain | - | - | - | - | - | - | - |
| Wind | 3mph | 3mph | 3mph | 4mph | 4mph | 4mph | 5mph |
| Dew | 21° | 21° | 21° | 21° | 21° | 21° | 20° |
| RunScore |  | | | |  | | |
Hoover Dam Marathon 2025
Dec 6, 2025
Clear conditions throughout the day.
Low: 41°, High: 61°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp |  46° | 50° | 53° | 56° | 59° | 60° | 61° |
| Feel | 44° | 50° | 53° | 56° | 59° | 60° | 61° |
| Rain | - | - | - | - | - | - | - |
| Wind | 4mph | 6mph | 0mph | 1mph | 1mph | 2mph | 5mph |
| Dew | 28° | 26° | 27° | 27° | 26° | 27° | 28° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2024
Dec 7, 2024
Clear conditions throughout the day.
Low: 41°, High: 66°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 46° | 52° | 57° | 61° | 62° | 64° | 65° |
| Feel | 44° | 52° | 57° | 61° | 62° | 64° | 65° |
| Rain | - | - | - | - | - | - | - |
| Wind | 4mph | 0mph | 2mph | 0mph | 3mph | 3mph | 1mph |
| Dew | 16° | 17° | 16° | 16° | 17° | 16° | 16° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2023
Dec 9, 2023
Clear conditions throughout the day.
Low: 40°, High: 54°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 44° | 47° | 49° | 51° | 52° | 53° | 54° |
| Feel | 38° | 42° | 44° | 51° | 52° | 53° | 54° |
| Rain | - | - | - | - | - | - | - |
| Wind | 9mph | 13mph | 15mph | 17mph | 17mph | 18mph | 15mph |
| Dew | 9° | 8° | 8° | 7° | 6° | 5° | 5° |
| RunScore | | |  | | | | |
Hoover Dam Marathon 2022
Dec 10, 2022
Partly cloudy throughout the day.
Low: 36°, High: 59°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 38° | 44° | 48° | 50° | 53° | 55° | 57° |
| Feel | 38° | 44° | 46° | 47° | 53° | 55° | 57° |
| Rain | - | - | - | - | - | - | - |
| Wind | 2mph | 0mph | 4mph | 7mph | 8mph | 8mph | 6mph |
| Dew | 25° | 26° | 28° | 28° | 28° | 28° | 27° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2021
Dec 11, 2021
Clear conditions throughout the day.
Low: 29°, High: 48°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 33° | 37° | 42° | 44° | 46° | 47° | 48° |
| Feel | 33° | 37° | 42° | 40° | 46° | 45° | 46° |
| Rain | - | - | - | - | - | - | - |
| Wind | 3mph | 3mph | 1mph | 6mph | 2mph | 4mph | 6mph |
| Dew | 15° | 14° | 12° | 10° | 20° | 9° | 9° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2019
Dec 14, 2019
Becoming cloudy in the afternoon.
Low: 43°, High: 60°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 44° | 49° | 53° | 55° | 57° | 59° | 59° |
| Feel | 44° | 49° | 53° | 55° | 57° | 59° | 59° |
| Rain | - | - | - | - | - | - | - |
| Wind | 2mph | 1mph | 3mph | 3mph | 2mph | 1mph | 2mph |
| Dew | 38° | 39° | 44° | 43° | 42° | 42° | 41° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2018
Dec 9, 2018
Partly cloudy throughout the day.
Low: 39°, High: 60°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 43° | 49° | 54° | 56° | 58° | 59° | 60° |
| Feel | 43° | 49° | 54° | 56° | 58° | 59° | 60° |
| Rain | - | - | - | - | - | - | - |
| Wind | 2mph | 0mph | 3mph | 4mph | 4mph | 3mph | 7mph |
| Dew | 37° | 37° | 34° | 34° | 33° | 32° | 31° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2017
Dec 10, 2017
Clear conditions throughout the day.
Low: 36°, High: 64°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 41° | 49° | 53° | 57° | 60° | 61° | 64° |
| Feel | 41° | 49° | 53° | 57° | 60° | 61° | 64° |
| Rain | - | - | - | - | - | - | - |
| Wind | 3mph | 0mph | 3mph | 2mph | 2mph | 1mph | 3mph |
| Dew | 9° | 9° | 8° | 6° | 6° | 6° | 5° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2016
Dec 10, 2016
Partly cloudy throughout the day.
Low: 37°, High: 57°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 41° | 47° | 51° | 53° | 55° | 57° | 57° |
| Feel | 41° | 47° | 51° | 53° | 55° | 57° | 57° |
| Rain | - | - | - | - | - | - | - |
| Wind | 2mph | 2mph | 3mph | 1mph | 4mph | 0mph | 3mph |
| Dew | 18° | 18° | 18° | 19° | 19° | 21° | 23° |
| RunScore | | | | | | | |
Hoover Dam Marathon 2015
Dec 8, 2015
Partly cloudy throughout the day.
Low: 41°, High: 65°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 45° | 52° | 58° | 59° | 62° | 64° | 65° |
| Feel | 43° | 52° | 58° | 59° | 62° | 64° | 65° |
| Rain | - | - | - | - | - | - | - |
| Wind | 5mph | 1mph | 0mph | 1mph | 2mph | 1mph | 3mph |
| Dew | 18° | 19° | 18° | 18° | 19° | 20° | 20° |
| RunScore | | | | | | | |