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 reveals a small adjustment in temperature, transitioning from an average high of a warm 76.6°F (24.8°C) in August to a pleasant 70°F (21.1°C). In the month of September, Rubicon records a consistent average low-temperature of 53.2°F (11.8°C).Humidity
In September, the average relative humidity is 81%.Rainfall
In Rubicon, Wisconsin, in September, during 13 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Rubicon, during the entire year, the rain falls for 141.6 days and collects up to 25.67" (652mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:36 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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 in Rubicon?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Rubicon have in September?
When is the sunrise / sunset in September in Rubicon?
How long on average sun shines in September in Rubicon?
How high is the UV index in September?
Average temperature in September
Rubicon, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Rubicon, 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 (29.91"Hg).
Average wind speed in September
Rubicon, WI
- Average wind speed in September: 7.8mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Rubicon, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Rubicon, WI
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are February and December (1.18").
Average rainfall days in September
Rubicon, WI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Rubicon, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rubicon, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rubicon, 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 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Rubicon, WI
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Rubicon, WI
- Average UV index in September: 3
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, November and December (UV index 1).
Average cloud cover in September
Rubicon, WI
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in September
Rubicon, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Rubicon, Wisconsin, USA
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