September weather forecastFairchild, WI
September
Weather in September
In Fairchild, September embodies the true spirit of fall, subtly letting go of the summer heat. Showcasing a drastic drop in temperature from August's high of 76.5°F (24.7°C), September comfortably settles into the fall spectrum. The beautiful transition of foliage colours reflects the arrival of autumn in earnest. September days see a drop in daylight hours, subtly ushering in shorter days. As Fairchild immerses itself in fall, September confirms its reputation for delivering the best of Wisconsin's weather.Temperature
September's onset brings a negligible change in high-temperatures, falling from a moderately hot 76.5°F (24.7°C) in August to an agreeable 69.4°F (20.8°C). Fairchild's average low-temperature in September is measured at a fresh 50.2°F (10.1°C).Humidity
In Fairchild, the average relative humidity in September is 80%.Rainfall
In Fairchild, in September, during 12.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Fairchild, during the entire year, the rain falls for 131.1 days and collects up to 25.51" (648mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Fairchild, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:45 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fairchild, WI
- Average high temperature in September: 69.4°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 (19.6°F).
- Average low temperature in September: 50.2°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in September
Fairchild, WI
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Fairchild, WI
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Fairchild, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Fairchild, WI
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Fairchild, WI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is January (2.1 days).
Average snowfall in September
Fairchild, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Fairchild, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fairchild, 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 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).
Average sunshine days in September
Fairchild, WI
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in September
Fairchild, 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
Fairchild, WI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Fairchild, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
