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
The average high-temperature slightly decreases in September, shifting from a warm 74.3°F (23.5°C) in August to an enjoyable 66.7°F (19.3°C). Throughout the month of September, Iron Belt reports a steady low-temperature average of 49.8°F (9.9°C).Humidity
In Iron Belt, the average relative humidity in September is 79%.Rainfall
In Iron Belt, during September, the rain falls for 12.8 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 104.6 rainfall days, and 16.5" (419mm) of precipitation is accumulated.Snowfall
In Iron Belt, snow does not fall in June through September.Daylight
In Iron Belt, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:39 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:42 pm CDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures 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?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Iron Belt, WI
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Iron Belt, WI
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Iron Belt, WI
- Average wind speed in September: 8.1mph
The windiest months (with the highest average wind speed) are January and November (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7mph).
Average humidity in September
Iron Belt, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Iron Belt, WI
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in September
Iron Belt, WI
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in September
Iron Belt, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Iron Belt, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Iron Belt, WI
- Average daylight in September: 12h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Iron Belt, WI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is July (16.3 days).
The month with the least sunshine days is January (7.8 days).
Average UV index in September
Iron Belt, 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
Iron Belt, WI
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Iron Belt, WI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Iron Belt, Wisconsin, USA
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