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 beginning of September in Fond du Lac brings a slight decrease in the average high-temperature, transitioning from a warm 76.6°F (24.8°C) in August to an agreeable 69.6°F (20.9°C). Fond du Lac sees an average low-temperature of 52°F (11.1°C) during September.Humidity
In September, the average relative humidity is 81%.Rainfall
In Fond du Lac, in September, it is raining for 8.2 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 90.7 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Fond du Lac, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:35 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Fond du Lac, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 3 during September translates into the following guidance:
Guard yourself - An obligation to protect skin and eyes from harm exists. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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 much does it rain in September?
When it does not snow in Fond du Lac?
Does it snow in September?
How many hours of daylight does Fond du Lac have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Fond du Lac have in September?
How high is the UV index in September?
Average temperature in September
Fond du Lac, WI
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Fond du Lac, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Fond du Lac, WI
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in September
Fond du Lac, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Fond du Lac, WI
- Average rainfall in September: 0.63"
The wettest months (with the highest rainfall) are June and October (0.94").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days in September
Fond du Lac, WI
- Average rainfall days in September: 8.2 days
The months with the highest number of rainy days are April and July (11 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Fond du Lac, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Fond du Lac, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fond du Lac, WI
- 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: 9h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Fond du Lac, WI
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is June (15.6 days).
Average UV index in September
Fond du Lac, WI
- 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, November and December (UV index 1).
Average cloud cover in September
Fond du Lac, WI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Fond du Lac, WI
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January and September (5mi).
Fond du Lac, Wisconsin, USA
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