| < 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 Decatur, Il in January is slightly cold at -3.8 °C (25.16 °F).
- Afternoons can be very cool with average high temperatures reaching 1.2 °C (34.2 °F).
- Overnight temperatures are generally cold with an average low of -8.9 °C (16 °F).
- In January the mean daily temperature variation/ range is 10.1 °C (18.2 °F).
- The weather in January is slightly dry. Only 50mm (2in) of water descends.
- The shortest day is 9:23 long and the longest day is 10:05 long with an average length of 9:40.
Check the distance to and compare the Decatur, Il January averages with somewhere beginning with:
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Weather Trend Graph for January in Decatur, Il, Usa
Navigate to January Weather in Locations Surrounding Decatur, Il:
- Minonk, Il, Usa - 100.6 kms (62.5 miles) N
- Peoria, Il, Usa - 94.1 kms (58.5 miles) NW
- Jacksonville, Il, Usa - 85.2 kms (52.9 miles) W
- Springfield, Il, Usa - 59.2 kms (36.8 miles) WSW
- Pana, Il, Usa - 68.3 kms (42.4 miles) S
- Carlinville, Il, Usa - 110.1 kms (68.4 miles) SW
- Windsor, Il, Usa - 111.2 kms (69.1 miles) S
- Hillsboro, Il, Usa - 111.2 kms (69.1 miles) S
- Pontiac, Il, Usa - 111.2 kms (69.1 miles) N
- Ottawa, Il, Usa - 111.2 kms (69.1 miles) N
- Hoopestonne, Il, Usa - 124.4 kms (77.3 miles) ENE
- Danville, Il, Usa - 85.2 kms (52.9 miles) E
- Urbana, Il, Usa - 85.2 kms (52.9 miles) E
- Paris, Il, Usa - 85.2 kms (52.9 miles) E