Weather on January 21
Green Bay, WI
55 Years of Data
About This Date
January 21st in Green Bay, WI typically brings very cold winter weather, with average highs around 25°F and lows near 9°F. Over 56 years of records, the warmest January 21st was in 2017 (37°F average), while the coldest was 1984 (-9°F) — a 46°F range across recorded history. Precipitation has occurred on 34% of recorded January 21st dates, with snow falling 32% of the time (heaviest snowfall: 3.2"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for January 21st in Green Bay, WI? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 21° | 6° | 14° | 0.03" | 0.2" |
| 2025 | 2° | -13° | -5° | — | — |
| 2024 | 20° | 0° | 10° | — | — |
| 2023 | 27° | 18° | 23° | — | — |
| 2022 | 18° | -10° | 4° | — | — |
| 2021 | 38° | 17° | 28° | — | — |
| 2020 | 23° | 6° | 15° | — | — |
| 2019 | 23° | -3° | 10° | 0.03" | 0.3" |
| 2018 | 43° | 25° | 34° | — | — |
| 2017warmest | 39° | 35° | 37° | 0.03" | — |
| 2016 | 24° | 17° | 21° | — | — |
| 2015 | 26° | 17° | 22° | — | — |
| 2014 | 5° | -11° | -3° | — | — |
| 2013 | 6° | -6° | 0° | — | — |
| 2012 | 16° | -6° | 5° | — | — |
| 2011 | 4° | -15° | -5° | — | — |
| 2010 | 31° | 16° | 23° | — | — |
| 2009 | 21° | 16° | 18° | — | — |
| 2008 | 8° | -6° | 1° | 0.38" | 2.6" |
| 2007 | 24° | 9° | 16° | 0.38" | 3.2" |
| 2006 | 35° | 20° | 27° | — | — |
| 2005 | 20° | 7° | 13° | 0.41" | 2.3" |
| 2004 | 29° | 0° | 14° | 0.15" | 1" |
| 2003 | 11° | -4° | 3° | — | — |
| 2002 | 30° | 17° | 24° | — | 0.3" |
| 2001 | 26° | 6° | 16° | — | — |
| 2000 | 6° | -12° | -3° | — | — |
| 1999 | 31° | 26° | 28° | — | — |
| 1998 | 29° | 21° | 25° | 0.25" | 1.6" |
| 1997 | 42° | 18° | 30° | 0.23" | — |
| 1996 | 30° | 7° | 18° | — | — |
| 1995 | 28° | 23° | 26° | 0.08" | 1" |
| 1994 | 21° | -2° | 10° | — | — |
| 1993 | 38° | 33° | 35° | 1.22" | 0.1" |
| 1992 | 30° | 14° | 22° | — | — |
| 1991 | 12° | -5° | 4° | — | — |
| 1990 | 29° | 20° | 24° | 0.1" | 0.6" |
| 1989 | 33° | 11° | 22° | — | — |
| 1988 | 27° | 2° | 14° | — | 0.1" |
| 1987 | 29° | 11° | 20° | 0.03" | 0.2" |
| 1986 | 36° | 23° | 29° | — | — |
| 1985 | 27° | -5° | 11° | — | — |
| 1984coldest | 5° | -24° | -9° | — | — |
| 1983 | 33° | 22° | 27° | — | — |
| 1982 | 15° | 8° | 12° | 0.03" | 0.7" |
| 1981 | 31° | 21° | 26° | — | — |
| 1980 | 37° | 15° | 26° | 0.03" | 0.3" |
| 1979 | 29° | 20° | 24° | — | — |
| 1978 | 25° | 7° | 16° | — | — |
| 1977 | 20° | -1° | 10° | — | — |
| 1976 | 23° | 10° | 17° | 0.13" | 0.5" |
| 1975 | 33° | 4° | 18° | 0.03" | 0.1" |
| 1974 | 35° | 31° | 33° | 0.1" | 0.2" |
| 1973 | 34° | 19° | 26° | 0.18" | — |
| 1972 | 30° | 2° | 16° | — | — |
| 1971 | 28° | 19° | 24° | — | — |