| < January >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Chicago/ 0’Hare, Il in January is cold at -6.1 °C (21.02 °F).
- Afternoons can be slightly cold with average high temperatures reaching -1.7 °C (28.9 °F).
- Overnight temperatures are generally very cold with an average low of -10.6 °C (12.9 °F).
- The mean daily temperature range/ variation in January is 8.9 °C (16 °F).
- The weather in January is dry. A mere 38.9mm (1.5in) of liquid falls.
- The shortest day is 9:10 long and the longest day is 9:55 long with an average length of 9:29.
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Weather Trend Graph for January in Chicago/ 0’Hare, Il, Usa
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