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
September is marked by a subtle drop in average high-temperatures, transitioning from a pleasant 73.2°F (22.9°C) in August to a comfortable 66.2°F (19°C). Throughout September, Marinette encounters an average temperature drop to a fresh 54.5°F (12.5°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Marinette, during September, the rain falls for 10.2 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 112.6 rainfall days, and 16.14" (410mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In Marinette, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Marinette have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Marinette, WI
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is August (73.2°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in September
Marinette, WI
- 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 (29.91"Hg).
Average wind speed in September
Marinette, WI
- Average wind speed in September: 9.3mph
The windiest months (with the highest average wind speed) are November and December (11.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in September
Marinette, WI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Marinette, WI
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Marinette, WI
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Marinette, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marinette, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marinette, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in September
Marinette, WI
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in September
Marinette, WI
- Average UV index in September: 4
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, March and December (UV index 1).
Average cloud cover in September
Marinette, WI
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Marinette, WI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Marinette, Wisconsin, USA
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