| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Griggsville, Il in September is somewhat warm at 19 °C (66.2 °F).
- Afternoons can be fairly hot with average high temperatures reaching 25.4 °C (77.7 °F).
- Overnight temperatures are generally mild with an average low of 12.6 °C (54.7 °F).
- In September the mean diurnal temperature range/ variation is 12.8 °C (23 °F).
- The weather in September is hardly arid. Circa 98.6mm (3.9in) of liquid falls.
- The shortest day is 11:45 long and the longest day is 13:02 long with an average length of 12:23.
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Weather Trend Graph for September in Griggsville, Il, Usa
Navigate to September Weather in Locations Surrounding Griggsville, Il:
- Burlington, Iowa, Usa - 124 kms (77.1 miles) NNW
- Rushville, Il, Usa - 40 kms (24.9 miles) NW
- Steffenville, Mo, Usa - 113.6 kms (70.6 miles) WNW
- Bowling Green E, Mo, Usa - 82.3 kms (51.1 miles) SSW
- Warrenton, Mo, Usa - 82.3 kms (51.1 miles) SSW
- Jacksonville, Il, Usa - 69.8 kms (43.4 miles) ENE
- Springfield, Il, Usa - 91.8 kms (57 miles) E
- Carlinville, Il, Usa - 86.6 kms (53.8 miles) ESE
- White Halle, Il, Usa - 100.5 kms (62.4 miles) SE
- St. Louis/ Lambert, Mo, Usa - 111 kms (69 miles) SSE
- Saint Louis, Missouri, Usa - 110.6 kms (68.7 miles) SSE