View long-term temperature data for Milwaukee, Wisconsin. The annual average temperature in Milwaukee is 49.3 degrees Fahrenheit, the annual average high temperature is 57.3 degrees, and the annual average low temperature is 41.3 degrees (averages are based on the 1991-2020 climate normals). Notable records for Milwaukee include:
- Hottest day (record high temperature): 105 degrees (July 24, 1934)
- Coldest day (record low temperature): -26 degrees (February 3, 1996, and January 17, 1982)
- Warmest annual average temperature: 51.98 degrees (2021 and 2012)
- Coldest annual average temperature: 40.9 degrees (1875)
Daily and Annual Temperatures
View daily temperatures for Milwaukee, Wisconsin, from 1871 to the present day, using combined data from the stations at the Milwaukee weather bureau office (January 1871–February 1941) and Milwaukee Mitchell International Airport (March 1941–present). This chart shows the observed high and low temperatures compared with the normal highs and lows. The bumpy lines are the observed temperatures; the smooth lines are the normal temperatures.
Click and drag anywhere on the chart to zoom in on specific data points.
Download the complete record of temperature data (CSV)
The file contains daily average, high, and low temperatures.