January weather in Green Bay, WI
The average temperature in Green Bay in January is 16.8°F (9.1°F–24.5°F). Average precipitation: 1.32 inches.
January is a winter month in Green Bay, and is cooler than the annual average of 44.7°F. Daily temperatures swing about 15.4°F between overnight low and afternoon high. Daylight averages about 8h 60m. For travel, January is cold.
Avg High
24.5°F
Avg Low
9.1°F
Precipitation
1.32 in
Daylight
8h 60m
January records in Green Bay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 45.0°F (2007) | -11.9°F (2014) | 0.49 in (2019) |
| January 2 | 39.9°F (2007) | -11.9°F (2014) | 0.65 in (2004) |
| January 3 | 48.0°F (2020) | -17.0°F (2014) | 0.08 in (2006) |
| January 4 | 46.0°F (2007) | -7.1°F (2015) | 0.37 in (2023) |
| January 5 | 46.0°F (2007) | -13.0°F (2015) | 0.65 in (2000) |
| January 6 | 48.0°F (2019) | -16.1°F (2014) | 0.31 in (2005) |
| January 7 | 43.0°F (2008) | -18.9°F (2014) | 0.45 in (2019) |
| January 8 | 44.1°F (2007) | -18.9°F (2014) | 0.67 in (2008) |
| January 9 | 50.0°F (2003) | -18.9°F (2014) | 1.24 in (2026) |
| January 10 | 52.0°F (2002) | -17.0°F (2014) | 0.48 in (2017) |
| January 11 | 46.9°F (2018) | -11.0°F (2022) | 0.48 in (2013) |
| January 12 | 52.0°F (2012) | -7.1°F (2016) | 0.17 in (2011) |
| January 13 | 46.9°F (2006) | -6.0°F (2016) | 0.78 in (2024) |
| January 14 | 46.0°F (2026) | -13.0°F (2009) | 0.59 in (2008) |
| January 15 | 42.1°F (2023) | -15.0°F (2009) | 0.60 in (2014) |
| January 16 | 39.9°F (2023) | -17.0°F (2009) | 0.13 in (2026) |
| January 17 | 42.1°F (2023) | -17.0°F (2009) | 0.73 in (2017) |
| January 18 | 46.0°F (2025) | -9.9°F (2005) | 0.10 in (2008) |
| January 19 | 39.9°F (2013) | -15.0°F (2008) | 0.39 in (2023) |
| January 20 | 43.0°F (2013) | -11.9°F (2008) | 0.10 in (2017) |
| January 21 | 43.0°F (2018) | -15.0°F (2025) | 0.14 in (2000) |
| January 22 | 44.1°F (2018) | -15.0°F (2025) | 0.34 in (2005) |
| January 23 | 45.0°F (2002) | -18.0°F (2026) | 0.68 in (2018) |
| January 24 | 41.0°F (2015) | -18.9°F (2026) | 0.61 in (2019) |
| January 25 | 42.1°F (2017) | -18.0°F (2026) | 0.50 in (2020) |
| January 26 | 46.9°F (2002) | -23.1°F (2019) | 0.42 in (2016) |
| January 27 | 46.9°F (2018) | -23.1°F (2019) | 0.21 in (2008) |
| January 28 | 39.0°F (2025) | -23.1°F (2019) | 0.52 in (2006) |
| January 29 | 48.0°F (2025) | -17.0°F (2014) | 0.43 in (2013) |
| January 30 | 45.0°F (2013) | -26.0°F (2019) | 0.32 in (2008) |
| January 31 | 53.1°F (2025) | -26.0°F (2019) | 0.49 in (2013) |