September weather forecastEvergreen, WI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Evergreen, Wisconsin, with an average temperature varying between 68.5°F (20.3°C) and 50°F (10°C).Temperature
The arrival of September signals a subtle shift in temperature, down from a moderately hot 75.6°F (24.2°C) in August to an agreeable 68.5°F (20.3°C). Evergreen, in September, experiences an average temperature of 50°F (10°C) at night.Humidity
In Evergreen, the average relative humidity in September is 80%.Rainfall
In Evergreen, in September, it is raining for 12 days, with typically 1.61" (41mm) of accumulated precipitation. In Evergreen, Wisconsin, during the entire year, the rain falls for 138.6 days and collects up to 24.49" (622mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:21 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:40 pm CDT.
Sunshine
In Evergreen, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Evergreen, WI
- Average high temperature in September: 68.5°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 (19.8°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in September
Evergreen, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Evergreen, WI
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Evergreen, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Evergreen, WI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Evergreen, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Evergreen, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Evergreen, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Evergreen, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Evergreen, WI
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Evergreen, WI
- Average UV index in September: 3
The months with the highest UV index are 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
Evergreen, WI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Evergreen, 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, February, March, July, August, September and December (5mi).





