Weather on August 31
Milwaukee, WI
55 Years of Data
Avg High
79°F
Avg Low
61°F
Warmest
2010
82°F avg
Coldest
2009
57°F avg
About This Date
August 31st in Milwaukee, WI typically brings pleasant summer weather, with average highs around 79°F and lows near 61°F. Over 55 years of records, the warmest August 31st was in 2010 (82°F average), while the coldest was 2009 (57°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 15% of August 31st dates historically, with the wettest August 31st recording 2.21" of rain. The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for August 31st in Milwaukee, WI? Great weather for outdoor activities.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 49° | 60° | — | — |
| 2024 | 81° | 60° | 70° | — | — |
| 2023 | 70° | 49° | 59° | — | — |
| 2022 | 86° | 64° | 75° | — | — |
| 2021 | 78° | 64° | 71° | — | — |
| 2020 | 78° | 64° | 71° | 0.05" | — |
| 2019 | 72° | 53° | 62° | — | — |
| 2018 | 78° | 57° | 68° | — | — |
| 2017 | 69° | 58° | 63° | — | — |
| 2016 | 74° | 64° | 69° | — | — |
| 2015 | 80° | 60° | 70° | — | — |
| 2014 | 78° | 64° | 71° | — | — |
| 2013 | 75° | 65° | 70° | — | — |
| 2012 | 92° | 68° | 80° | — | — |
| 2011 | 85° | 66° | 75° | — | — |
| 2010warmest | 92° | 73° | 82° | — | — |
| 2009coldest | 70° | 45° | 57° | — | — |
| 2008 | 87° | 62° | 75° | — | — |
| 2007 | 78° | 53° | 66° | — | — |
| 2006 | 73° | 59° | 66° | — | — |
| 2005 | 82° | 61° | 71° | — | — |
| 2004 | 78° | 55° | 67° | — | — |
| 2003 | 79° | 55° | 67° | — | — |
| 2002 | 85° | 60° | 72° | — | — |
| 2001 | 88° | 59° | 73° | 0.28" | — |
| 2000 | 76° | 67° | 71° | — | — |
| 1999 | 70° | 56° | 63° | — | — |
| 1998 | 75° | 59° | 67° | — | — |
| 1997 | 74° | 60° | 67° | — | — |
| 1996 | 81° | 58° | 69° | — | — |
| 1995 | 80° | 66° | 73° | — | — |
| 1994 | 70° | 54° | 62° | — | — |
| 1993 | 74° | 61° | 67° | 0.25" | — |
| 1992 | 75° | 55° | 65° | — | — |
| 1991 | 77° | 65° | 71° | — | — |
| 1990 | 79° | 59° | 69° | — | — |
| 1989 | 78° | 59° | 69° | 1.52" | — |
| 1988 | 84° | 59° | 72° | — | — |
| 1987 | 76° | 54° | 65° | — | — |
| 1986 | 78° | 60° | 69° | — | — |
| 1985 | 72° | 57° | 64° | — | — |
| 1984 | 81° | 58° | 69° | 0.05" | — |
| 1983 | 80° | 66° | 73° | — | — |
| 1982 | 73° | 60° | 67° | — | — |
| 1981 | 79° | 67° | 73° | 2.21" | — |
| 1980 | 75° | 66° | 71° | 0.18" | — |
| 1979 | 89° | 65° | 77° | — | — |
| 1978 | 77° | 58° | 67° | — | — |
| 1977 | 86° | 68° | 77° | — | — |
| 1976 | 90° | 63° | 76° | — | — |
| 1975 | 72° | 64° | 68° | 0.05" | — |
| 1974 | 70° | 55° | 62° | — | — |
| 1973 | 92° | 70° | 81° | — | — |
| 1972 | 87° | 69° | 78° | — | — |
| 1971 | 69° | 63° | 66° | — | — |
55 years of data from W ALLIS