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
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from an agreeable 70.3°F (21.3°C) to a refreshing 64.2°F (17.9°C). During September, an average low-temperature of 52.3°F (11.3°C) is observed.Humidity
In Chassell, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 14.4 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. In Chassell, during the entire year, the rain falls for 123.4 days and collects up to 21.1" (536mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 7:14 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 7:35 pm EDT.
Sunshine
The average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Chassell have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Chassell, MI
- Average high temperature in September: 64.2°F
The warmest month (with the highest average high temperature) is August (70.3°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is August (57.6°F).
The coldest months (with the lowest average low temperature) are January and February (15.1°F).
Average pressure in September
Chassell, MI
- Average pressure in September: 29.99"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
Chassell, MI
- Average wind speed in September: 9.2mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is June (7.5mph).
Average humidity in September
Chassell, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Chassell, MI
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is October (2.28").
The driest months (with the least rainfall) are January, February and March (1.3").
Average rainfall days in September
Chassell, MI
- Average rainfall days in September: 14.4 days
The months with the highest number of rainy days are September and October (14.4 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in September
Chassell, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Chassell, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chassell, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Chassell, MI
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is July (15.6 days).
The month with the least sunshine days is January (5.3 days).
Average UV index in September
Chassell, MI
- Average UV index in September: 4
The months with the highest UV index are 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
Chassell, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Chassell, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Chassell, Michigan, USA
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