Milwaukee's winters are frigid, with temperatures often plummeting below -25°C in January and February. Spring arrives slowly, with March bringing occasional warm days above 10°C but still chilly mornings around -10°C. Summer is warm, with June and July averaging highs around 30°C, although nights can dip to just above 10°C. Autumn brings mild temperatures, similar to spring, with September and October seeing highs in the mid-20s, while winters are consistently cold, with January and February being the coldest months.