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
In September, the average high-temperature marginally drops from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.1°F (21.7°C). Black Earth experiences a nighttime temperature average of 51.3°F (10.7°C) during September.Humidity
The average relative humidity in September is 81%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 115.3 rainfall days, and 13.9" (353mm) of precipitation is accumulated.Snowfall
In Black Earth, snow does not fall in May through September.Daylight
In Black Earth, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:24 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:41 pm CDT.
Sunshine
In Black Earth, the average sunshine in September is 8.7h.UV index
In Black Earth, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Take precautions - Protection against sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Black Earth?
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?
How many hours of daylight does Black Earth have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Black Earth have in September?
How high is the UV index in September?
Average temperature in September
Black Earth, WI
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Black Earth, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Black Earth, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Black Earth, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Black Earth, WI
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is June (1.85").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
Black Earth, WI
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Black Earth, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Black Earth, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Black Earth, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 4min
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 12min).
Average sunshine days in September
Black Earth, WI
- Average sunshine days in September: 17.5 days
The months with the most sunshine days are October and December (19.3 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Black Earth, WI
- Average UV index in September: 3
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
Black Earth, WI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in September
Black Earth, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Black Earth, Wisconsin, USA
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