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Weather in September in Ottawa, Il

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< September >
 
Normal Max/ High Temperature 25°C (77°F)
 
Average Temperature 19°C (66°F)
 
Min/ Low Temperature 13°C (55°F)
 
Normal Precipitation 98mm (3.9in)
Average Daylight per day 12:25
Sun altitude at solar noon on the 21st day.
49.5°


  • The average temperature in Ottawa, Il in September is somewhat warm at 18.8 °C (65.84 °F).
  • Afternoons can be fairly hot with average high temperatures reaching 25.1 °C (77.2 °F).
  • Overnight temperatures are generally mild with an average low of 12.6 °C (54.7 °F).
  • In September the mean diurnal temperature variation/ range is 12.5 °C (22.5 °F).
  • The weather in September is hardly arid. Circa 98mm (3.9in) of fluidis dumped .
  • The shortest day is 11:45 long and the longest day is 13:05 long with an average length of 12:25.

Check the distance to and compare the Ottawa, Il September averages with somewhere beginning with:

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Weather Trend Graph for September in Ottawa, Il, Usa

Graph of weather in Ottawa, Il in September

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