Weather on April 20
Green Bay, WI
55 Years of Data
Avg High
56°F
Avg Low
37°F
Warmest
1987
71°F avg
Coldest
1982
32°F avg
About This Date
April 20th in Green Bay, WI typically brings cool spring weather, with average highs around 56°F and lows near 37°F. Over 55 years of records, the warmest April 20th was in 1987 (71°F average), while the coldest was 1982 (32°F) — a 39°F range across recorded history. Precipitation has occurred on 51% of recorded April 20th dates, with snow falling 7% of the time (heaviest snowfall: 1.4"). The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in Green Bay, WI? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 39° | 46° | 0.48" | — |
| 2024 | 41° | 33° | 37° | — | — |
| 2023 | 65° | 40° | 52° | 0.81" | — |
| 2022 | 49° | 34° | 41° | 0.94" | — |
| 2021 | 43° | 27° | 35° | — | — |
| 2020 | 60° | 29° | 45° | 0.38" | — |
| 2019 | 64° | 32° | 48° | — | — |
| 2018 | 50° | 21° | 36° | — | — |
| 2017 | 48° | 41° | 45° | 2.46" | — |
| 2016 | 65° | 46° | 55° | — | — |
| 2015 | 48° | 40° | 44° | 0.69" | — |
| 2014 | 58° | 48° | 53° | 0.28" | — |
| 2013 | 43° | 25° | 34° | — | — |
| 2012 | 51° | 35° | 43° | 0.36" | — |
| 2011 | 39° | 32° | 36° | 0.1" | 0.2" |
| 2010 | 66° | 35° | 51° | — | — |
| 2009 | 40° | 33° | 36° | 1.88" | 0.2" |
| 2008 | 65° | 44° | 54° | — | — |
| 2007 | 69° | 36° | 52° | — | — |
| 2006 | 73° | 46° | 60° | — | — |
| 2005 | 58° | 38° | 48° | 0.1" | — |
| 2004 | 48° | 34° | 41° | 0.71" | — |
| 2003 | 61° | 47° | 54° | 0.33" | — |
| 2002 | 48° | 33° | 41° | — | — |
| 2001 | 60° | 47° | 53° | 0.28" | — |
| 2000 | 43° | 38° | 40° | 3.84" | — |
| 1999 | 57° | 28° | 43° | 0.23" | — |
| 1998 | 63° | 38° | 50° | — | — |
| 1997 | 52° | 34° | 43° | — | — |
| 1996 | 54° | 43° | 48° | 1.78" | — |
| 1995 | 41° | 33° | 37° | 0.03" | — |
| 1994 | 57° | 34° | 45° | — | — |
| 1993 | 46° | 28° | 37° | 0.43" | 1.4" |
| 1992 | 71° | 56° | 63° | 0.03" | — |
| 1991 | 49° | 31° | 40° | — | — |
| 1990 | 60° | 46° | 53° | 0.61" | — |
| 1989 | 60° | 40° | 50° | — | — |
| 1988 | 50° | 28° | 39° | — | — |
| 1987warmest | 84° | 57° | 71° | — | — |
| 1986 | 62° | 37° | 50° | — | — |
| 1985 | 82° | 45° | 63° | 0.18" | — |
| 1984 | 61° | 29° | 45° | — | — |
| 1983 | 56° | 23° | 39° | — | — |
| 1982coldest | 36° | 28° | 32° | 0.03" | 0.1" |
| 1981 | 39° | 27° | 33° | — | — |
| 1980 | 69° | 41° | 55° | — | — |
| 1979 | 68° | 46° | 57° | 0.05" | — |
| 1978 | 39° | 32° | 36° | 0.05" | — |
| 1977 | 74° | 58° | 66° | — | — |
| 1976 | 56° | 40° | 48° | 1.42" | — |
| 1975 | 45° | 31° | 38° | — | — |
| 1974 | 67° | 33° | 50° | 0.03" | — |
| 1973 | 68° | 59° | 64° | 0.84" | — |
| 1972 | 54° | 35° | 44° | — | — |
| 1971 | 75° | 43° | 59° | — | — |
55 years of data from GREEN BAY