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
Somers's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 76.8°F (24.9°C) in August to an agreeable 70.7°F (21.5°C). Somers records an average nighttime low-temperature of 57.6°F (14.2°C) throughout September.Humidity
The average relative humidity in September is 78%.Rainfall
In Somers, in September, it is raining for 12.7 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 148 rainfall days, and 27.09" (688mm) of precipitation is accumulated.Snowfall
In Somers, snow does not fall in June through September.Daylight
In Somers, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Somers in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Somers have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Somers?
Average temperature in September
Somers, WI
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 57.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Somers, WI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Somers, WI
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in September
Somers, WI
- Average humidity in September: 78%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Somers, WI
- Average rainfall in September: 2.2"
The wettest months (with the highest rainfall) are April and June (3.35").
The driest months (with the least rainfall) are February and December (1.22").
Average rainfall days in September
Somers, WI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Somers, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Somers, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Somers, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Somers, WI
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is December (16.4 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Somers, WI
- Average UV index in September: 4
The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Somers, WI
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Somers, 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).
Somers, Wisconsin, USA
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