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
Two Rivers experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 73.9°F (23.3°C) in August to a comfortable 67.1°F (19.5°C). September's nights observe an average temperature of 56.5°F (13.6°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Two Rivers, in September, during 9.7 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Two Rivers, during the entire year, the rain falls for 108.5 days and collects up to 10.67" (271mm) of precipitation.Snowfall
In Two Rivers, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:32 pm CDT.
Sunshine
In Two Rivers, Wisconsin, the average sunshine in September is 9.1h.UV index
In Two Rivers, Wisconsin, 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: The maximum UV index of 4 during September translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature 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 Two Rivers have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Two Rivers have in September?
How high is the UV index in September?
Average temperature in September
Two Rivers, WI
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in September
Two Rivers, 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
Two Rivers, WI
- Average wind speed in September: 10mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in September
Two Rivers, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in September
Two Rivers, WI
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (1.34").
The driest months (with the least rainfall) are February and November (0.47").
Average rainfall days in September
Two Rivers, WI
- Average rainfall days in September: 9.7 days
The months with the highest number of rainy days are June and July (12.1 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Two Rivers, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Two Rivers, 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
Two Rivers, 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: 8h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Two Rivers, WI
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in September
Two Rivers, WI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Two Rivers, WI
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in September
Two Rivers, 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).
Two Rivers, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location