| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Hillsboro, Il in December is very cool at 0.2 °C (32.36 °F).
- Afternoons can be cool with average high temperatures reaching 5.1 °C (41.2 °F).
- Overnight temperatures are generally slightly cold with an average low of -4.8 °C (23.4 °F).
- In December the mean diurnal temperature variation/ range is 9.9 °C (17.8 °F).
- The weather in December is dryish. Just 87.6mm (3.4in) of H2O is released.
- The shortest day is 9:24 long and the longest day is 9:35 long with an average length of 9:27.
Check the distance to and compare the Hillsboro, Il December averages with somewhere beginning with:
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Weather Trend Graph for December in Hillsboro, Il, Usa
Navigate to December Weather in Locations Surrounding Hillsboro, Il:
- Springfield, Il, Usa - 110.5 kms (68.7 miles) NNW
- Pana, Il, Usa - 43.8 kms (27.2 miles) N
- Carlinville, Il, Usa - 82.2 kms (51.1 miles) WNW
- White Halle, Il, Usa - 86.4 kms (53.7 miles) W
- St. Louis/ Lambert, Mo, Usa - 121.5 kms (75.5 miles) WSW
- Saint Louis, Missouri, Usa - 122.9 kms (76.4 miles) WSW
- Sparta, Il, Usa - 112.4 kms (69.9 miles) SSW
- Mt Vernon, Il, Usa - 111.2 kms (69.1 miles) S
- Duquoin, Il, Usa - 111.2 kms (69.1 miles) S
- Harrisburg, Il, Usa - 111.2 kms (69.1 miles) S