January weather in Waterloo, WI
The average temperature in Waterloo in January is 19.0°F (10.7°F–27.4°F). Average precipitation: 1.39 inches.
January is a winter month in Waterloo, and is cooler than the annual average of 46.7°F. Daily temperatures swing about 16.7°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 9m. For travel, January is cold.
Avg High
27.4°F
Avg Low
10.7°F
Precipitation
1.39 in
Daylight
9h 9m
January records in Waterloo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 50.0°F (2011) | -11.9°F (2018) | 0.48 in (2019) |
| January 2 | 39.9°F (2023) | -7.1°F (2018) | 0.08 in (2021) |
| January 3 | 46.0°F (2020) | -7.1°F (2018) | 0.30 in (2023) |
| January 4 | 37.9°F (2023) | -7.1°F (2018) | 0.11 in (2015) |
| January 5 | 45.0°F (2019) | -9.9°F (2015) | 0.04 in (2023) |
| January 6 | 50.0°F (2012) | -20.9°F (2015) | 0.34 in (2026) |
| January 7 | 48.0°F (2008) | -18.9°F (2015) | 0.47 in (2019) |
| January 8 | 51.1°F (2008) | -17.0°F (2015) | 0.72 in (2008) |
| January 9 | 42.1°F (2018) | -18.9°F (2015) | 0.50 in (2008) |
| January 10 | 48.9°F (2020) | -14.1°F (2015) | 0.48 in (2024) |
| January 11 | 52.0°F (2018) | -6.0°F (2016) | 0.42 in (2020) |
| January 12 | 55.0°F (2012) | -6.0°F (2016) | 0.23 in (2018) |
| January 13 | 42.1°F (2022) | -6.0°F (2016) | 0.93 in (2024) |
| January 14 | 42.1°F (2014) | -9.9°F (2009) | 0.05 in (2009) |
| January 15 | 37.9°F (2010) | -15.0°F (2009) | 0.38 in (2021) |
| January 16 | 41.0°F (2023) | -18.0°F (2009) | 0.16 in (2021) |
| January 17 | 45.0°F (2023) | -18.9°F (2009) | 0.55 in (2017) |
| January 18 | 39.9°F (2015) | -9.0°F (2016) | 0.33 in (2020) |
| January 19 | 42.1°F (2013) | -11.0°F (2008) | 0.40 in (2019) |
| January 20 | 45.0°F (2013) | -11.9°F (2008) | 0.32 in (2017) |
| January 21 | 48.9°F (2018) | -14.1°F (2019) | 0.23 in (2012) |
| January 22 | 46.9°F (2017) | -14.1°F (2019) | 0.74 in (2018) |
| January 23 | 41.0°F (2017) | -4.0°F (2011) | 0.72 in (2018) |
| January 24 | 39.0°F (2010) | -9.0°F (2008) | 0.32 in (2010) |
| January 25 | 39.0°F (2010) | -11.0°F (2008) | 0.45 in (2017) |
| January 26 | 37.0°F (2018) | -23.1°F (2019) | 0.50 in (2017) |
| January 27 | 46.0°F (2018) | -24.0°F (2019) | 0.31 in (2024) |
| January 28 | 45.0°F (2018) | -7.1°F (2014) | 0.47 in (2019) |
| January 29 | 45.0°F (2008) | -7.1°F (2014) | 0.86 in (2013) |
| January 30 | 55.0°F (2013) | -26.0°F (2019) | 0.68 in (2013) |
| January 31 | 44.1°F (2012) | -26.0°F (2019) | 0.48 in (2021) |