September weather forecastColfax, WI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Colfax, Wisconsin, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 50.7°F (10.4°C).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a moderately hot 77°F (25°C) in August to a pleasant 70°F (21.1°C). In September, Colfax records an average nighttime temperature of 50.7°F (10.4°C).Humidity
In September, the average relative humidity in Colfax is 79%.Rainfall
In September, in Colfax, Wisconsin, the rain falls for 13.6 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Colfax, during the entire year, the rain falls for 139.8 days and collects up to 27.52" (699mm) of precipitation.Snowfall
June through September are months without snowfall in Colfax.Daylight
In Colfax, 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 7:43 pm. On the last day of September, in Colfax, sunrise is at 7:04 am and sunset at 6:48 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September in Colfax is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Colfax, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).
Average pressure in September
Colfax, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Colfax, WI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Colfax, WI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Colfax, WI
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Colfax, WI
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Colfax, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Colfax, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Colfax, WI
- Average daylight in September: 12h and 30min
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 30min
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: 3h and 12min).
Average sunshine days in September
Colfax, WI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in September
Colfax, 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, November and December (UV index 1).
Average cloud cover in September
Colfax, WI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Colfax, 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).





