August weather in Rock Springs, WY
The average temperature in Rock Springs in August is 67.6°F (50.7°F–84.4°F). Average precipitation: 0.89 inches.
August is a summer month in Rock Springs, and is warmer than the annual average of 45°F. Daily temperatures swing about 33.7°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 13h 41m. For travel, August is a comfortable month to visit.
Avg High
84.4°F
Avg Low
50.7°F
Precipitation
0.89 in
Daylight
13h 41m
August records in Rock Springs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.9°F (2008) | 44.1°F (2009) | 0.10 in (2019) |
| August 2 | 93.0°F (2020) | 45.0°F (2006) | 0.30 in (2023) |
| August 3 | 95.0°F (2020) | 45.0°F (2006) | 0.36 in (2007) |
| August 4 | 93.9°F (2024) | 46.0°F (2006) | 0.20 in (2005) |
| August 5 | 91.9°F (2020) | 45.0°F (2006) | 0.17 in (2014) |
| August 6 | 91.0°F (2019) | 45.0°F (2011) | 0.30 in (2008) |
| August 7 | 91.9°F (2024) | 41.0°F (2009) | 0.12 in (2009) |
| August 8 | 91.9°F (2024) | 45.0°F (2009) | 0.22 in (2015) |
| August 9 | 91.9°F (2012) | 39.0°F (2025) | 0.14 in (2015) |
| August 10 | 93.0°F (2022) | 41.0°F (2025) | 0.68 in (2019) |
| August 11 | 93.9°F (2018) | 46.0°F (2009) | 0.30 in (2016) |
| August 12 | 93.9°F (2018) | 41.0°F (2016) | 0.15 in (2024) |
| August 13 | 93.9°F (2018) | 42.1°F (2010) | 0.27 in (2017) |
| August 14 | 95.0°F (2003) | 42.1°F (2005) | 0.16 in (2022) |
| August 15 | 90.0°F (2023) | 44.1°F (2005) | 0.50 in (2024) |
| August 16 | 91.0°F (2023) | 37.0°F (2009) | 0.38 in (2005) |
| August 17 | 93.0°F (2023) | 36.0°F (2009) | 0.16 in (2005) |
| August 18 | 93.9°F (2020) | 39.0°F (2009) | 0.73 in (2005) |
| August 19 | 95.0°F (2020) | 43.0°F (2015) | 0.47 in (2021) |
| August 20 | 95.0°F (2025) | 41.0°F (2016) | 0.10 in (2021) |
| August 21 | 95.0°F (2025) | 42.1°F (2016) | 0.09 in (2014) |
| August 22 | 93.0°F (2009) | 43.0°F (2016) | 0.29 in (2021) |
| August 23 | 93.0°F (2009) | 41.0°F (2015) | 0.47 in (2023) |
| August 24 | 91.9°F (2011) | 41.0°F (2015) | 0.18 in (2023) |
| August 25 | 91.0°F (2011) | 39.0°F (2010) | 0.21 in (2006) |
| August 26 | 90.0°F (2011) | 44.1°F (2016) | 0.25 in (2006) |
| August 27 | 91.9°F (2011) | 39.9°F (2024) | 0.16 in (2022) |
| August 28 | 89.1°F (2012) | 44.1°F (2016) | 0.23 in (2025) |
| August 29 | 89.1°F (2012) | 37.9°F (2018) | 0.00 in (2003) |
| August 30 | 89.1°F (2017) | 37.0°F (2024) | 0.71 in (2003) |
| August 31 | 89.1°F (2017) | 34.0°F (2005) | 0.40 in (2011) |