average daily temperature chicago
January is also one of the wettest times of the year. If you're not one for cold weather, Chicago is a city to be avoided in January! The average daily temperature for Chicago in January is a chilly -1C, and this can drop as low as -11C on average. As well as this, Chicago experiences on average only 4 hours of sun per day in January. The average rainfall experienced in Chicago during this month is 43 mm.