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
September marks a gentle change in average high-temperature in Racine, Wisconsin, declining from August's moderately hot 75°F (23.9°C) to an agreeable 69.1°F (20.6°C). Throughout September, Racine witnesses a consistent average low-temperature of 59.5°F (15.3°C).Humidity
In Racine, the average relative humidity in September is 77%.Rainfall
In Racine, during September, the rain falls for 10.6 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 119.1 rainfall days, and 10.39" (264mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Racine.Daylight
The average length of the day in September in Racine, Wisconsin, is 12h and 29min.On the first day of September, sunrise is at 6:16 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:33 pm CDT.
Sunshine
In Racine, the average sunshine in September is 9.3h.UV index
In Racine, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Racine?
What is the average humidity in September in Racine?
How much does it rain in Racine in September?
When it does not snow in Racine?
Does it snow in Racine in September?
How many hours of daylight does Racine have in September?
When is the sunrise / sunset in September in Racine?
How many hours of sunshine does Racine have in September?
How high is the UV index in September in Racine?
Average temperature in September
Racine, WI
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is August (66°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Racine, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Racine, WI
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Racine, WI
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Racine, WI
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in September
Racine, WI
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Racine, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Racine, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Racine, 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Racine, WI
- Average sunshine days in September: 16 days
The month with the most sunshine days is December (18.7 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in September
Racine, WI
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Racine, WI
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Racine, WI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Racine, Wisconsin, USA
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