| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Grand Rapids, Michigan in September is very mild at 16.1 °C (60.98 °F).
- Afternoons can be really warm with average high temperatures reaching 22.2 °C (72 °F).
- Overnight temperatures are generally a little cool with an average low of 9.9 °C (49.8 °F).
- In September the range/ variation of diurnal mean temperatures is 12.3 °C (22.1 °F).
- The weather in September is not exactly parched with rain at times. Circa 107.7mm (4.2in) of liquid accrues across an average of 10 days.
- In September the blue above Grand Rapids, Michigan is a little sunny having an average of a measurable 7:09 of blazing solar radiation daily.
- The shortest day is 11:43 long and the longest day is 13:09 long with an average length of 12:26.
- There are approximately 5:06 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 58.4% of daylight hours and cloudy 41.6% of daylight hours.
Check the distance to and compare the Grand Rapids, Michigan September averages with somewhere beginning with:
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Weather Trend Graph for September in Grand Rapids, Michigan, Usa
Navigate to September Weather in Locations Surrounding Grand Rapids, Michigan:
- Hart, Mi, Usa - 130.2 kms (80.9 miles) NNW
- Muskegon, Mi, Usa - 67.4 kms (41.9 miles) WNW
- Racine, Wi, Usa - 185.7 kms (115.4 miles) W
- Kalamazoo, Mi, Usa - 66 kms (41 miles) S
- South Bend/ St.Joseph County, In, Usa - 147.1 kms (91.4 miles) SSW
- Houghton Lake, Mi, Usa - 178.1 kms (110.6 miles) NNE
- Mount Pleasant, Mi, Usa - 131 kms (81.4 miles) NNE
- Big Rapids Waterworks, Mi, Usa - 90.6 kms (56.3 miles) N
- Alma, Mi, Usa - 44 kms (27.3 miles) ENE
- Owosso, Mi, Usa - 109.8 kms (68.2 miles) E
- Flint/ Bishop, Mi, Usa - 144.1 kms (89.6 miles) E
- Hillsdale, Mi, Usa - 107 kms (66.5 miles) SSE
- Adrian Ne, Mi, Usa - 158.5 kms (98.5 miles) SE
- Coldwater, Mi, Usa - 107 kms (66.5 miles) SSE
- Ann Arbor, Mi, Usa - 158.5 kms (98.5 miles) SE
- Wauseon, Oh, Usa - 186.6 kms (116 miles) SE