September weather forecastGladstone, MI
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Gladstone, Michigan, with an average temperature varying between 66°F (18.9°C) and 52.7°F (11.5°C).Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from an agreeable 72.5°F (22.5°C) to an enjoyable 66°F (18.9°C). September brings Gladstone a consistent average low-temperature of 52.7°F (11.5°C).Humidity
The average relative humidity in September is 80%.Rainfall
In September, in Gladstone, the rain falls for 12.9 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. In Gladstone, Michigan, during the entire year, the rain falls for 139.7 days and collects up to 24.17" (614mm) of precipitation.Snowfall
In Gladstone, snow does not fall in May through September.Ocean temperature
In Gladstone, in September, the average water temperature is 63.9°F (17.7°C).Note: In 63.9°F (17.7°C), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 69.8°F (21°C).
Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:25 pm. On the last day of September, in Gladstone, sunrise is at 7:46 am and sunset at 7:29 pm EDT.
Sunshine
The average sunshine in September in Gladstone is 7.7h.UV index
In Gladstone, Michigan, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gladstone, MI
- Average high temperature in September: 66°F
The warmest month (with the highest average high temperature) is July (72.7°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in September
Gladstone, MI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Gladstone, MI
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is November (11mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).
Average humidity in September
Gladstone, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Gladstone, MI
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Gladstone, MI
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Gladstone, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Gladstone, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Gladstone, MI
- Average sea temperature in September: 63.9°F
The best month for swimming (with the highest average sea temperature) is August (67.2°F).
The coldest month (with the lowest average sea temperature) is February (34.9°F).
Average daylight in September /
Average sunshine in September
Gladstone, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Gladstone, MI
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in September
Gladstone, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Gladstone, MI
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Gladstone, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
