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 coincides with a small decrease in the average high-temperature, down to a pleasant 70.3°F (21.3°C) from a moderately hot 75.7°F (24.3°C). During September, the temperature is averaged to a low of 58.3°F (14.6°C) at night.Humidity
In September, the average relative humidity in Fennville, Michigan, is 77%.Rainfall
In Fennville, during September, the rain falls for 14.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Fennville, there are 151.7 rainfall days, and 26.18" (665mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall in Fennville, Michigan.Daylight
In September, the average length of the day in Fennville is 12h and 29min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:18 pm. On the last day of September, in Fennville, sunrise is at 7:41 am and sunset at 7:27 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Fennville, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the usual temperature for Fennville in September?
What is the average humidity in September in Fennville?
How many days does it rain in September in Fennville?
When it does not snow in Fennville?
What is the average length of the day in September in Fennville?
What time are sunrise and sunset in September in Fennville?
How long on average sun shines in September in Fennville?
What is the UV index reading in September in Fennville?
Average temperature in September
Fennville, MI
- Average high temperature in September: 70.3°F
The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 58.3°F
The months with the highest average low temperature are July and August (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Fennville, 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 (29.92"Hg).
Average wind speed in September
Fennville, MI
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Fennville, MI
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Fennville, MI
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in September
Fennville, MI
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is October (17 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Fennville, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Fennville, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fennville, 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 6min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Fennville, MI
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is March (14.7 days).
The month with the least sunshine days is January (7.2 days).
Average UV index in September
Fennville, MI
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Fennville, MI
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Fennville, 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).
Fennville, Michigan, USA
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