September weather forecastTrego, WI
September
Weather in September
September, the first month of the autumn in Trego, is still a pleasant month, with an average temperature ranging between max 68.9°F (20.5°C) and min 49.8°F (9.9°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 77°F (25°C) to a pleasant 68.9°F (20.5°C). The average low-temperature of 49.8°F (9.9°C) is witnessed during September.Humidity
In September, the average relative humidity in Trego is 78%.Rainfall
In Trego, in September, during 12.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Trego, Wisconsin, during the entire year, the rain falls for 118.5 days and collects up to 21.1" (536mm) of precipitation.Snowfall
In Trego, Wisconsin, snow does not fall in June through September.Daylight
In Trego, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:44 pm. On the last day of September, in Trego, sunrise is at 7:05 am and sunset at 6:48 pm CDT.
Sunshine
In Trego, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trego, WI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (17.4°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in September
Trego, WI
- Average pressure in September: 30"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
Trego, WI
- Average wind speed in September: 7.6mph
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
Trego, WI
- Average humidity in September: 78%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Trego, WI
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Trego, WI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in September
Trego, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Trego, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Trego, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Trego, WI
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Trego, 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, November and December (UV index 1).
Average cloud cover in September
Trego, WI
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Trego, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July and October (6mi).
The months with the lowest visibility are January and February (4mi).
