Koa Vernal

Best time to visit Koa Vernal

Best months: April–June and September–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

1. Jan

   29° / 10°

   5 wet · 4 snow

2. Feb

   37° / 17°

   5 wet · 3 snow

3. Mar

   51° / 27°

   5 wet · 2 snow

4. Apr

   60° / 34°

   6 wet

5. May

   70° / 43°

   7 wet

6. Jun

   81° / 50°

   5 wet

7. Jul

   89° / 57°

   4 wet

8. Aug

   86° / 55°

   5 wet

9. Sep

   76° / 46°

   6 wet

10. Oct

    61° / 35°

    5 wet

11. Nov

    46° / 24°

    5 wet · 1 snow

12. Dec

    31° / 13°

    5 wet · 4 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Vernal, UT, 2.1 mi away at 5,345 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.