| < 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 Washington, Ia in September is somewhat warm at 19.1 °C (66.38 °F).
- Afternoons can be hot with average high temperatures reaching 25.5 °C (77.9 °F).
- Overnight temperatures are generally mild with an average low of 12.6 °C (54.7 °F).
- The mean diurnal temperature variation/ range in September is 12.9 °C (23.2 °F).
- The weather in September is not exactly parched. Circa 102.4mm (4in) of fluid tumbles.
- 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 Washington, Ia September averages with somewhere beginning with:
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Weather Trend Graph for September in Washington, Ia, Usa
Navigate to September Weather in Locations Surrounding Washington, Ia:
- Toledo, Ia, Usa - 138.9 kms (86.3 miles) NW
- Des Moines, Iowa, Usa - 150.1 kms (93.3 miles) WNW
- Indianola, Ia, Usa - 167.8 kms (104.3 miles) W
- Spickard, Mo, Usa - 167.2 kms (103.9 miles) WSW
- Steffenville, Mo, Usa - 111.2 kms (69.1 miles) S
- Dubuque, Ia, Usa - 189.4 kms (117.7 miles) NE
- Belle Plaine, Ia, Usa - 111.2 kms (69.1 miles) N
- Moline/ Quad City, Il, Usa - 133.8 kms (83.1 miles) ENE
- Galva, Il, Usa - 165.1 kms (102.6 miles) E
- La Harpe, Il, Usa - 83.9 kms (52.1 miles) E
- Aledo, Il, Usa - 83.9 kms (52.1 miles) E
- Monmouth, Il, Usa - 83.9 kms (52.1 miles) E
- Mount Pleasant, Ia, Usa - 41.5 kms (25.8 miles) E
- Burlington, Iowa, Usa - 78.1 kms (48.5 miles) ESE
- Rushville, Il, Usa - 139.7 kms (86.8 miles) SE
- Griggsville, Il, Usa - 179.7 kms (111.7 miles) SE