Weather on September 23
Milwaukee, WI
55 Years of Data
Avg High
69°F
Avg Low
51°F
Warmest
2017
82°F avg
Coldest
1995
43°F avg
About This Date
September 23rd in Milwaukee, WI typically brings mild fall weather, with average highs around 69°F and lows near 51°F. Over 55 years of records, the warmest September 23rd was in 2017 (82°F average), while the coldest was 1995 (43°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 29% of September 23rd dates historically, with the wettest September 23rd recording 5.21" of rain. The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
Planning for September 23rd in Milwaukee, WI? Great weather for outdoor activities.
Warming Trend
2.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 61° | 70° | 2.97" | — |
| 2024 | 69° | 52° | 60° | 4.24" | — |
| 2023 | 81° | 65° | 73° | — | — |
| 2022 | 64° | 47° | 55° | — | — |
| 2021 | 68° | 53° | 61° | — | — |
| 2020 | 80° | 60° | 70° | — | — |
| 2019 | 76° | 58° | 67° | — | — |
| 2018 | 67° | 47° | 57° | — | — |
| 2017warmest | 91° | 73° | 82° | — | — |
| 2016 | 71° | 63° | 67° | 0.08" | — |
| 2015 | 76° | 55° | 65° | — | — |
| 2014 | 73° | 53° | 63° | — | — |
| 2013 | 61° | 48° | 54° | — | — |
| 2012 | 58° | 41° | 49° | — | — |
| 2011 | 60° | 46° | 53° | — | — |
| 2010 | 76° | 58° | 67° | — | — |
| 2009 | 72° | 62° | 67° | 1.42" | — |
| 2008 | 77° | 60° | 69° | — | — |
| 2007 | 77° | 48° | 63° | — | — |
| 2006 | 67° | 57° | 62° | 0.05" | — |
| 2005 | 76° | 51° | 63° | 0.13" | — |
| 2004 | 85° | 55° | 70° | — | — |
| 2003 | 68° | 46° | 57° | 0.1" | — |
| 2002 | 68° | 40° | 54° | — | — |
| 2001 | 78° | 53° | 66° | 0.1" | — |
| 2000 | 60° | 51° | 56° | 5.21" | — |
| 1999 | 75° | 47° | 61° | — | — |
| 1998 | 65° | 46° | 55° | — | — |
| 1997 | 61° | 50° | 55° | — | — |
| 1996 | 65° | 50° | 57° | 0.13" | — |
| 1995coldest | 54° | 32° | 43° | — | — |
| 1994 | 75° | 60° | 68° | — | — |
| 1993 | 66° | 49° | 57° | — | — |
| 1992 | 57° | 40° | 48° | — | — |
| 1991 | 63° | 46° | 54° | — | — |
| 1990 | 61° | 42° | 51° | — | — |
| 1989 | 56° | 36° | 46° | — | — |
| 1988 | 67° | 50° | 58° | — | — |
| 1987 | 73° | 61° | 67° | — | — |
| 1986 | 71° | 63° | 67° | 0.46" | — |
| 1985 | 72° | 49° | 60° | 0.23" | — |
| 1984 | 73° | 64° | 69° | — | — |
| 1983 | 58° | 39° | 48° | — | — |
| 1982 | 68° | 46° | 57° | 0.1" | — |
| 1981 | 67° | 47° | 57° | — | — |
| 1980 | 61° | 45° | 53° | — | — |
| 1979 | 69° | 48° | 59° | — | — |
| 1978 | 71° | 49° | 60° | — | — |
| 1977 | 65° | 56° | 60° | 0.46" | — |
| 1976 | 62° | 43° | 52° | — | — |
| 1975 | 70° | 45° | 57° | — | — |
| 1974 | 58° | 40° | 49° | 0.05" | — |
| 1973 | 65° | 49° | 57° | — | — |
| 1972 | 64° | 48° | 56° | 0.33" | — |
| 1971 | 62° | 48° | 55° | — | — |
55 years of data from W ALLIS