| < 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 Walnut, Il in January is cold at -7.3 °C (18.86 °F).
- Afternoons can be slightly cold with average high temperatures reaching -2.3 °C (27.9 °F).
- Overnight temperatures are generally very cold with an average low of -12.4 °C (9.7 °F).
- The average diurnal temperature range/ variation in January is 10.1 °C (18.2 °F).
- The weather in January is dry. A mere 32mm (1.3in) of water is discharged.
- 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 Walnut, Il, Usa
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