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's arrival comes with a mild decrease in the average high-temperature, moving subtly from a moderately hot 76.8°F (24.9°C) in August to an agreeable 68.9°F (20.5°C). During the nights in September, the temperature in Apollonia, Wisconsin, averages to a chilly 49.1°F (9.5°C).Humidity
In Apollonia, Wisconsin, the average relative humidity in September is 80%.Rainfall
In Apollonia, in September, it is raining for 12.2 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, there are 128.5 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:27 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:46 pm CDT.
Sunshine
In Apollonia, the average sunshine in September is 8.1h.UV index
In Apollonia, Wisconsin, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Apollonia 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 Apollonia 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
Apollonia, WI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in September
Apollonia, WI
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Apollonia, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Apollonia, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Apollonia, WI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in September
Apollonia, WI
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Apollonia, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Apollonia, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Apollonia, 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
Apollonia, WI
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and April (10 days).
Average UV index in September
Apollonia, WI
- Average UV index in September: 4
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, February and December (UV index 1).
Average cloud cover in September
Apollonia, WI
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Apollonia, WI
- Average visibility in September: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).
Apollonia, Wisconsin, USA
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