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 Arlington, entering September brings a subtle temperature decrement, reducing from August's warm 77.4°F (25.2°C) to an agreeable 71.1°F (21.7°C). The average temperature during September nights dips to a fresh 51.4°F (10.8°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Arlington, Wisconsin, in September, during 9.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 107.1 rainfall days, and 10.24" (260mm) of precipitation is accumulated.Snowfall
In Arlington, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:39 pm CDT.
Sunshine
In Arlington, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Arlington is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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 many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September in Arlington?
How many hours of sunshine does Arlington have in September?
What is the UV index reading in September?
Average temperature in September
Arlington, WI
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in September
Arlington, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Arlington, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Arlington, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Arlington, WI
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Arlington, WI
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Arlington, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Arlington, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arlington, WI
- 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: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Arlington, WI
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Arlington, WI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Arlington, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Arlington, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Arlington, Wisconsin, USA
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