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 start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 76.6°F (24.8°C) in August to an agreeable 69.1°F (20.6°C). Junction in September experiences a low-temperature average of 49.8°F (9.9°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Junction, during September, the rain falls for 12.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Junction, during the entire year, the rain falls for 128.3 days and collects up to 25.75" (654mm) of precipitation.Snowfall
In Junction, snow does not fall in June through September.Daylight
In Junction, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:26 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:45 pm CDT.
Sunshine
In September, the average sunshine in Junction is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take necessary precautions - Defending against sun damage is advocated. To protect against the Sun's most potent rays, avoid direct exposure around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Junction in September?
What is the average humidity in September?
How much 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 in Junction?
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
Junction, WI
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).
Average pressure in September
Junction, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Junction, WI
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Junction, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Junction, WI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Junction, WI
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in September
Junction, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Junction, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Junction, 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 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
Junction, WI
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in September
Junction, 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, November and December (UV index 1).
Average cloud cover in September
Junction, WI
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Junction, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Junction, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location