Weather on August 15
Green Bay, WI
55 Years of Data
Avg High
79°F
Avg Low
57°F
Warmest
1987
79°F avg
Coldest
1976
57°F avg
About This Date
August 15th in Green Bay, WI typically brings pleasant summer weather, with average highs around 79°F and lows near 57°F. Over 55 years of records, the warmest August 15th was in 1987 (79°F average), while the coldest was 1976 (57°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 22% of August 15th dates historically, with the wettest August 15th recording 4.27" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Green Bay, WI? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 65° | 75° | — | — |
| 2024 | 75° | 59° | 67° | 0.94" | — |
| 2023 | 78° | 55° | 67° | — | — |
| 2022 | 79° | 58° | 68° | — | — |
| 2021 | 81° | 56° | 68° | — | — |
| 2020 | 82° | 60° | 71° | — | — |
| 2019 | 79° | 55° | 67° | — | — |
| 2018 | 85° | 64° | 74° | — | — |
| 2017 | 78° | 59° | 69° | — | — |
| 2016 | 83° | 58° | 70° | — | — |
| 2015 | 88° | 61° | 74° | — | — |
| 2014 | 78° | 47° | 62° | — | — |
| 2013 | 80° | 48° | 64° | — | — |
| 2012 | 81° | 55° | 68° | — | — |
| 2011 | 83° | 54° | 68° | — | — |
| 2010 | 78° | 62° | 70° | — | — |
| 2009 | 85° | 63° | 74° | — | — |
| 2008 | 81° | 53° | 67° | — | — |
| 2007 | 77° | 58° | 67° | — | — |
| 2006 | 78° | 54° | 66° | — | — |
| 2005 | 80° | 51° | 66° | — | — |
| 2004 | 78° | 44° | 61° | — | — |
| 2003 | 86° | 63° | 74° | — | — |
| 2002 | 81° | 57° | 69° | 0.03" | — |
| 2001 | 69° | 61° | 65° | 0.84" | — |
| 2000 | 83° | 56° | 69° | 0.28" | — |
| 1999 | 77° | 48° | 63° | — | — |
| 1998 | 75° | 53° | 64° | — | — |
| 1997 | 80° | 64° | 72° | 4.27" | — |
| 1996 | 71° | 55° | 63° | — | — |
| 1995 | 78° | 64° | 71° | — | — |
| 1994 | 78° | 52° | 65° | — | — |
| 1993 | 76° | 66° | 71° | 0.08" | — |
| 1992 | 73° | 41° | 57° | — | — |
| 1991 | 85° | 67° | 76° | — | — |
| 1990 | 76° | 63° | 69° | 0.2" | — |
| 1989 | 72° | 53° | 62° | 0.03" | — |
| 1988 | 89° | 61° | 75° | — | — |
| 1987warmest | 86° | 71° | 79° | 1.5" | — |
| 1986 | 77° | 62° | 70° | — | — |
| 1985 | 78° | 54° | 66° | — | — |
| 1984 | 83° | 64° | 73° | — | — |
| 1983 | 86° | 63° | 74° | 0.18" | — |
| 1982 | 81° | 57° | 69° | — | — |
| 1981 | 78° | 58° | 68° | — | — |
| 1980 | 73° | 56° | 64° | — | — |
| 1979 | 69° | 47° | 58° | — | — |
| 1978 | 88° | 65° | 76° | 0.61" | — |
| 1977 | 78° | 48° | 63° | 0.3" | — |
| 1976coldest | 71° | 42° | 57° | — | — |
| 1975 | 82° | 54° | 68° | — | — |
| 1974 | 85° | 53° | 69° | — | — |
| 1973 | 80° | 52° | 66° | — | — |
| 1972 | 77° | 60° | 69° | — | — |
| 1971 | 73° | 50° | 62° | — | — |
55 years of data from GREEN BAY