January weather in Sauk City, WI
The average temperature in Sauk City in January is 17.2°F (7.9°F–26.5°F). Average precipitation: 1.30 inches.
January is a winter month in Sauk City, and is cooler than the annual average of 45.9°F. Daily temperatures swing about 18.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 8m. For travel, January is cold.
Avg High
26.5°F
Avg Low
7.9°F
Precipitation
1.30 in
Daylight
9h 8m
January records in Sauk City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 46.9°F (2011) | -18.0°F (2018) | 0.36 in (2019) |
| January 2 | 46.9°F (2011) | -17.0°F (2018) | 0.05 in (2026) |
| January 3 | 46.0°F (2020) | -20.9°F (2014) | 0.15 in (2023) |
| January 4 | 37.0°F (2019) | -16.1°F (2014) | 0.09 in (2023) |
| January 5 | 46.9°F (2019) | -17.0°F (2018) | 0.10 in (2023) |
| January 6 | 51.1°F (2012) | -18.0°F (2014) | 0.11 in (2015) |
| January 7 | 48.9°F (2008) | -20.9°F (2014) | 0.48 in (2019) |
| January 8 | 46.0°F (2026) | -20.0°F (2014) | 0.39 in (2019) |
| January 9 | 57.0°F (2026) | -25.1°F (2014) | 0.52 in (2026) |
| January 10 | 48.9°F (2020) | -18.9°F (2014) | 0.49 in (2024) |
| January 11 | 51.1°F (2012) | -9.0°F (2016) | 0.53 in (2017) |
| January 12 | 53.1°F (2012) | -9.0°F (2016) | 0.15 in (2017) |
| January 13 | 46.9°F (2026) | -13.0°F (2015) | 0.49 in (2024) |
| January 14 | 53.1°F (2026) | -15.0°F (2015) | 0.02 in (2009) |
| January 15 | 37.9°F (2010) | -24.0°F (2009) | 0.24 in (2021) |
| January 16 | 42.1°F (2023) | -26.0°F (2009) | 0.09 in (2026) |
| January 17 | 43.0°F (2012) | -27.9°F (2009) | 0.68 in (2023) |
| January 18 | 51.1°F (2025) | -11.0°F (2016) | 0.43 in (2020) |
| January 19 | 44.1°F (2013) | -22.0°F (2014) | 0.36 in (2019) |
| January 20 | 46.0°F (2013) | -15.0°F (2026) | 0.43 in (2017) |
| January 21 | 48.0°F (2018) | -22.0°F (2019) | 0.27 in (2012) |
| January 22 | 42.1°F (2017) | -22.0°F (2019) | 0.34 in (2018) |
| January 23 | 39.0°F (2017) | -23.1°F (2011) | 0.36 in (2019) |
| January 24 | 37.9°F (2010) | -18.9°F (2026) | 0.60 in (2010) |
| January 25 | 37.9°F (2010) | -18.0°F (2019) | 0.40 in (2017) |
| January 26 | 39.9°F (2025) | -35.0°F (2019) | 0.43 in (2016) |
| January 27 | 46.9°F (2018) | -27.0°F (2019) | 0.20 in (2024) |
| January 28 | 43.0°F (2018) | -20.0°F (2014) | 0.35 in (2019) |
| January 29 | 50.0°F (2025) | -18.0°F (2014) | 0.82 in (2013) |
| January 30 | 46.0°F (2025) | -27.0°F (2019) | 0.13 in (2008) |
| January 31 | 59.0°F (2025) | -38.0°F (2019) | 0.75 in (2013) |