WeatherMadison's weather is famously variable. It's not uncommon for the temperature to drop 50 F/25 C in a few hours. The best time of year to visit is the summer, when the average temperature is a comfortable 69 F/21 C, although bouts of uncomfortable humidity aren't uncommon. During spring and fall, temperatures average 44-48 F/6-9 C, but unpredictable fronts often bring much colder weather. Winter is long and cold: About 40 in/100 cm of snow falls on the city, and the ice on Lake Mendota and Lake Monona is usually frozen by mid-December. The average temperature then is 19 F/-7 C, but cold snaps often drive the mercury below 0 F/-18 C—and the windchill factor makes it feel even colder.
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