Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a warm 76.5°F (24.7°C) to a pleasant 69.6°F (20.9°C). Marion records an average temperature drop to a cool 50.5°F (10.3°C) in September.Humidity
In Marion, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall in Marion, Michigan. Rain falls for 12.1 days and accumulates 1.14" (29mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Marion is 12h and 30min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:16 pm. On the last day of September, in Marion, sunrise is at 7:37 am and sunset at 7:22 pm EDT.
Sunshine
The average sunshine in September in Marion is 7.9h.UV index
In Marion, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Marion?
What is the average humidity in September in Marion?
What is the driest month in Marion?
How many days does it rain in September in Marion?
When it does not snow in Marion?
Does it snow in Marion in September?
What is the average length of the day in September in Marion?
When is the sunrise / sunset in September in Marion?
How long on average sun shines in September in Marion?
What is the UV index reading in September in Marion?
Average temperature in September
Marion, MI
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in September
Marion, MI
- Average pressure in September: 30.02"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
Marion, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Marion, MI
- Average humidity in September: 80%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Marion, MI
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in September
Marion, MI
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is October (16.9 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Marion, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (10.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marion, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marion, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Marion, MI
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The months with the least sunshine days are January and February (6.3 days).
Average UV index in September
Marion, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Marion, MI
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Marion, MI
- Average visibility in September: 5mi
The months with the highest visibility are April, May and June (6mi).
The months with the lowest visibility are January and February (4mi).
Marion, Michigan, USA
Weather forecast for your location
2. Allow the app to use your location