January weather in Rock Springs, WY
The average temperature in Rock Springs in January is 23.5°F (12.4°F–34.6°F). Average precipitation: 0.45 inches. Average snowfall is 6.1 inches.
January is a winter month in Rock Springs, and is cooler than the annual average of 45°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 9h 18m. For travel, January is cold.
Avg High
34.6°F
Avg Low
12.4°F
Precipitation
0.45 in
Snow
6.1 in
January records in Rock Springs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 51.1°F (2026) | -20.0°F (2016) | 0.07 in (2004) |
| January 2 | 48.0°F (2009) | -18.9°F (2016) | 0.09 in (2017) |
| January 3 | 46.9°F (2012) | -16.1°F (2013) | 0.10 in (2017) |
| January 4 | 50.0°F (2026) | -17.0°F (2013) | 0.40 in (2017) |
| January 5 | 52.0°F (2012) | -15.0°F (2009) | 0.42 in (2017) |
| January 6 | 46.9°F (2006) | -33.0°F (2017) | 0.05 in (2023) |
| January 7 | 52.0°F (2022) | -27.9°F (2017) | 0.20 in (2024) |
| January 8 | 53.1°F (2009) | -15.0°F (2010) | 0.13 in (2016) |
| January 9 | 45.0°F (2009) | -5.1°F (2017) | 0.09 in (2017) |
| January 10 | 43.0°F (2007) | -14.1°F (2011) | 0.13 in (2005) |
| January 11 | 48.9°F (2006) | -4.0°F (2004) | 0.30 in (2013) |
| January 12 | 48.0°F (2026) | -9.0°F (2004) | 0.20 in (2013) |
| January 13 | 48.0°F (2021) | -11.0°F (2004) | 0.10 in (2019) |
| January 14 | 52.0°F (2026) | -22.0°F (2013) | 0.25 in (2019) |
| January 15 | 48.0°F (2012) | -18.0°F (2007) | 0.06 in (2016) |
| January 16 | 45.0°F (2018) | -18.0°F (2024) | 0.05 in (2012) |
| January 17 | 48.9°F (2009) | -18.9°F (2017) | 0.30 in (2019) |
| January 18 | 51.1°F (2015) | -6.0°F (2017) | 0.08 in (2006) |
| January 19 | 54.0°F (2018) | -9.0°F (2017) | 0.24 in (2017) |
| January 20 | 52.0°F (2005) | -7.1°F (2025) | 0.22 in (2018) |
| January 21 | 48.0°F (2009) | -2.0°F (2008) | 0.15 in (2012) |
| January 22 | 46.0°F (2009) | -18.9°F (2008) | 0.24 in (2019) |
| January 23 | 46.9°F (2003) | -6.0°F (2008) | 0.08 in (2021) |
| January 24 | 45.0°F (2009) | -15.0°F (2008) | 0.22 in (2017) |
| January 25 | 48.9°F (2015) | -7.1°F (2008) | 0.12 in (2017) |
| January 26 | 61.0°F (2015) | -9.9°F (2017) | 0.47 in (2009) |
| January 27 | 54.0°F (2003) | -20.0°F (2017) | 0.07 in (2005) |
| January 28 | 52.0°F (2015) | -13.0°F (2007) | 0.06 in (2008) |
| January 29 | 48.0°F (2024) | -5.1°F (2023) | 0.10 in (2023) |
| January 30 | 50.0°F (2018) | -24.0°F (2023) | 0.09 in (2014) |
| January 31 | 54.0°F (2003) | -18.0°F (2023) | 0.12 in (2011) |