January weather in Rapid City, SD
The average temperature in Rapid City in January is 26.4°F (16.2°F–36.5°F). Average precipitation: 0.31 inches. Average snowfall is 5.3 inches.
January is a winter month in Rapid City, and is cooler than the annual average of 48°F. Daily temperatures swing about 20.3°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 3m. For travel, January is cold.
Avg High
36.5°F
Avg Low
16.2°F
Precipitation
0.31 in
Snow
5.3 in
January records in Rapid City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 64.0°F (1998) | -18.0°F (2018) | 0.08 in (1999) |
| January 2 | 62.1°F (1998) | -6.0°F (2002) | 0.22 in (2023) |
| January 3 | 59.0°F (2003) | -2.9°F (2017) | 0.30 in (1996) |
| January 4 | 63.0°F (2012) | -9.0°F (2004) | 0.21 in (2005) |
| January 5 | 71.1°F (2012) | -15.0°F (2014) | 0.08 in (2025) |
| January 6 | 57.9°F (2013) | -13.0°F (2014) | 0.18 in (2010) |
| January 7 | 63.0°F (2003) | -11.0°F (2010) | 0.12 in (2009) |
| January 8 | 73.0°F (2002) | -14.1°F (2010) | 0.07 in (2004) |
| January 9 | 66.0°F (2001) | -4.0°F (1998) | 0.03 in (2025) |
| January 10 | 62.1°F (2022) | -13.0°F (1997) | 0.05 in (2020) |
| January 11 | 64.9°F (1996) | -17.0°F (1997) | 0.25 in (2013) |
| January 12 | 62.1°F (2026) | -18.9°F (2024) | 0.02 in (1998) |
| January 13 | 60.1°F (2026) | -23.1°F (2024) | 0.08 in (2026) |
| January 14 | 62.1°F (2006) | -20.0°F (2024) | 0.16 in (2018) |
| January 15 | 60.1°F (2000) | -11.9°F (2024) | 0.14 in (2003) |
| January 16 | 59.0°F (2025) | -13.0°F (2018) | 0.22 in (2023) |
| January 17 | 57.0°F (2022) | -7.1°F (1996) | 0.06 in (1996) |
| January 18 | 61.0°F (2005) | -13.0°F (1996) | 0.09 in (2019) |
| January 19 | 64.0°F (2005) | -11.9°F (1996) | 0.01 in (2011) |
| January 20 | 66.0°F (2009) | -11.9°F (1996) | 0.25 in (1998) |
| January 21 | 60.1°F (2009) | -11.9°F (2025) | 0.08 in (2019) |
| January 22 | 57.9°F (2009) | -9.0°F (2008) | 0.14 in (2012) |
| January 23 | 66.9°F (2005) | -11.9°F (2026) | 0.05 in (1999) |
| January 24 | 69.1°F (2005) | -11.0°F (2026) | 0.15 in (2017) |
| January 25 | 64.0°F (2006) | -11.9°F (1997) | 0.08 in (2009) |
| January 26 | 66.0°F (2015) | -11.0°F (1997) | 0.11 in (2000) |
| January 27 | 73.0°F (2015) | -14.1°F (1997) | 0.20 in (2000) |
| January 28 | 59.0°F (2016) | -14.1°F (1996) | 0.17 in (2023) |
| January 29 | 64.9°F (2025) | -15.0°F (1996) | 0.23 in (2001) |
| January 30 | 64.0°F (2024) | -15.0°F (1996) | 0.05 in (2013) |
| January 31 | 62.1°F (2024) | -14.1°F (2011) | 0.06 in (2017) |