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
In Marlette, the average high-temperature in September slightly decreases from a moderately hot 76.3°F (24.6°C) in August to an agreeable 69.8°F (21°C). Throughout the month of September, the average temperature dips to a fresh 53.1°F (11.7°C) at night.Humidity
In Marlette, the average relative humidity in September is 81%.Rainfall
In September, the rain falls for 12.7 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 140.3 rainfall days, and 21.42" (544mm) of precipitation is accumulated.Snowfall
In Marlette, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
In Marlette, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Marlette 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 Marlette in September?
How many hours of daylight does Marlette have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Marlette, MI
- Average high temperature in September: 69.8°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 (26.6°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in September
Marlette, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Marlette, MI
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Marlette, MI
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Marlette, MI
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in September
Marlette, MI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Marlette, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marlette, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marlette, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Marlette, MI
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Marlette, MI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Marlette, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Marlette, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Marlette, Michigan, USA
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