Weather on December 15
Milwaukee, WI
55 Years of Data
About This Date
December 15th in Milwaukee, WI typically brings cold winter weather, with average highs around 37°F and lows near 23°F. Over 55 years of records, the warmest December 15th was in 2021 (57°F average), while the coldest was 2025 (2°F) — a 55°F range across recorded history. Precipitation has occurred on 42% of recorded December 15th dates, with snow falling 22% of the time (heaviest snowfall: 13.1"). The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for December 15th in Milwaukee, 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 |
|---|---|---|---|---|---|
| 2025coldest | 9° | -6° | 2° | — | — |
| 2024 | 40° | 31° | 35° | 0.84" | — |
| 2023 | 54° | 31° | 42° | — | — |
| 2022 | 40° | 32° | 36° | 1.09" | — |
| 2021warmest | 67° | 48° | 57° | — | — |
| 2020 | 33° | 18° | 26° | — | — |
| 2019 | 27° | 14° | 21° | — | — |
| 2018 | 44° | 26° | 35° | — | — |
| 2017 | 32° | 22° | 27° | 0.03" | 0.3" |
| 2016 | 12° | 0° | 6° | — | — |
| 2015 | 44° | 36° | 40° | — | — |
| 2014 | 48° | 41° | 45° | 0.13" | — |
| 2013 | 22° | 4° | 13° | — | — |
| 2012 | 47° | 37° | 42° | 0.86" | — |
| 2011 | 54° | 30° | 42° | — | — |
| 2010 | 25° | 2° | 13° | — | — |
| 2009 | 36° | 13° | 24° | 0.05" | — |
| 2008 | 45° | 3° | 24° | 0.66" | 0.3" |
| 2007 | 26° | 12° | 19° | 0.08" | 0.6" |
| 2006 | 52° | 39° | 45° | — | — |
| 2005 | 35° | 29° | 32° | 0.56" | 1.8" |
| 2004 | 29° | 13° | 21° | — | — |
| 2003 | 33° | 24° | 29° | — | — |
| 2002 | 42° | 26° | 34° | — | — |
| 2001 | 36° | 26° | 31° | — | — |
| 2000 | 33° | 8° | 21° | 0.18" | 0.5" |
| 1999 | 40° | 32° | 36° | 0.38" | 1" |
| 1998 | 50° | 36° | 43° | — | — |
| 1997 | 48° | 28° | 38° | — | — |
| 1996 | 43° | 28° | 35° | 0.51" | — |
| 1995 | 36° | 21° | 28° | — | — |
| 1994 | 36° | 33° | 34° | 0.2" | 0.9" |
| 1993 | 45° | 40° | 42° | — | — |
| 1992 | 49° | 34° | 41° | 2.16" | — |
| 1991 | 22° | 6° | 14° | 0.2" | 0.8" |
| 1990 | 38° | 33° | 35° | 0.61" | 0.4" |
| 1989 | 18° | -4° | 7° | — | 0.1" |
| 1988 | 21° | 5° | 13° | — | — |
| 1987 | 35° | 31° | 33° | 3.99" | 13.1" |
| 1986 | 41° | 24° | 33° | — | — |
| 1985 | 24° | 14° | 19° | — | — |
| 1984 | 45° | 33° | 39° | — | — |
| 1983 | 30° | 22° | 26° | 0.15" | — |
| 1982 | 38° | 32° | 35° | 0.2" | — |
| 1981 | 26° | 12° | 19° | — | — |
| 1980 | 29° | 21° | 25° | — | — |
| 1979 | 44° | 30° | 37° | — | — |
| 1978 | 42° | 29° | 35° | — | — |
| 1977 | 36° | 32° | 34° | — | — |
| 1976 | 41° | 25° | 33° | — | — |
| 1975 | 40° | 23° | 31° | 0.1" | — |
| 1974 | 42° | 34° | 38° | 1.57" | — |
| 1973 | 28° | 18° | 23° | 0.33" | 3.2" |
| 1972 | 21° | 9° | 15° | — | — |
| 1971 | 57° | 35° | 46° | 3.86" | — |