Weather on May 18
Milwaukee, WI
55 Years of Data
Avg High
67°F
Avg Low
49°F
Warmest
1996
79°F avg
Coldest
2002
43°F avg
About This Date
May 18th in Milwaukee, WI typically brings mild spring weather, with average highs around 67°F and lows near 49°F. Over 55 years of records, the warmest May 18th was in 1996 (79°F average), while the coldest was 2002 (43°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 45% of May 18th dates historically, with the wettest May 18th recording 5.21" of rain. The last decade has been 7.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.0°F cooler on this date compared to 20-30 years ago.
Planning for May 18th in Milwaukee, WI? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 51° | 60° | — | — |
| 2024 | 74° | 52° | 63° | — | — |
| 2023 | 57° | 38° | 47° | — | — |
| 2022 | 55° | 48° | 52° | 0.66" | — |
| 2021 | 70° | 53° | 61° | 0.13" | — |
| 2020 | 51° | 47° | 49° | 1.02" | — |
| 2019 | 59° | 42° | 51° | 1.14" | — |
| 2018 | 59° | 46° | 53° | 0.28" | — |
| 2017 | 75° | 44° | 60° | — | — |
| 2016 | 57° | 45° | 51° | — | — |
| 2015 | 75° | 49° | 62° | — | — |
| 2014 | 71° | 48° | 60° | — | — |
| 2013 | 67° | 48° | 57° | — | — |
| 2012 | 77° | 52° | 64° | — | — |
| 2011 | 55° | 45° | 50° | 0.43" | — |
| 2010 | 62° | 46° | 54° | — | — |
| 2009 | 67° | 43° | 55° | — | — |
| 2008 | 71° | 44° | 58° | 0.05" | — |
| 2007 | 66° | 43° | 54° | — | — |
| 2006 | 68° | 44° | 56° | 0.28" | — |
| 2005 | 70° | 52° | 61° | — | — |
| 2004 | 83° | 47° | 65° | 1.47" | — |
| 2003 | 69° | 49° | 59° | — | — |
| 2002coldest | 47° | 39° | 43° | — | — |
| 2001 | 84° | 55° | 70° | 0.05" | — |
| 2000 | 56° | 49° | 52° | 5.21" | — |
| 1999 | 78° | 52° | 65° | 0.61" | — |
| 1998 | 88° | 65° | 76° | — | — |
| 1997 | 56° | 38° | 47° | 0.15" | — |
| 1996warmest | 90° | 68° | 79° | — | — |
| 1995 | 63° | 47° | 55° | — | — |
| 1994 | 56° | 43° | 49° | — | — |
| 1993 | 51° | 42° | 47° | 0.1" | — |
| 1992 | 51° | 42° | 47° | — | — |
| 1991 | 48° | 43° | 45° | 0.66" | — |
| 1990 | 70° | 47° | 58° | — | — |
| 1989 | 66° | 55° | 61° | — | — |
| 1988 | 62° | 41° | 52° | — | — |
| 1987 | 68° | 49° | 58° | 1.65" | — |
| 1986 | 60° | 47° | 53° | — | — |
| 1985 | 60° | 47° | 53° | 0.03" | — |
| 1984 | 84° | 65° | 74° | 0.71" | — |
| 1983 | 58° | 49° | 53° | 0.43" | — |
| 1982 | 81° | 64° | 72° | 0.28" | — |
| 1981 | 56° | 42° | 49° | — | — |
| 1980 | 62° | 50° | 56° | 0.79" | — |
| 1979 | 84° | 61° | 72° | 0.99" | — |
| 1978 | 82° | 57° | 70° | — | — |
| 1977 | 91° | 61° | 76° | — | — |
| 1976 | 68° | 41° | 55° | — | — |
| 1975 | 87° | 56° | 71° | — | — |
| 1974 | 53° | 38° | 45° | 0.3" | — |
| 1973 | 64° | 44° | 54° | 0.43" | — |
| 1972 | 80° | 57° | 69° | — | — |
| 1971 | 78° | 54° | 66° | 0.33" | — |
55 years of data from W ALLIS