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 transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a warm 77.2°F (25.1°C) in August to a pleasant 71.1°F (21.7°C). During September, the average low-temperature is recorded at a fresh 51.8°F (11°C).Humidity
The average relative humidity in September is 81%.Rainfall
In September, in Middleton, the rain falls for 12.7 days. Throughout September, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 143.9 rainfall days, and 29.88" (759mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Middleton, Wisconsin.Daylight
In Middleton, Wisconsin, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:32 pm. On the last day of September, in Middleton, sunrise is at 6:55 am and sunset at 6:40 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Middleton, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Middleton?
What is the average humidity in September in Middleton?
How much does it rain in Middleton in September?
When it does not snow in Middleton?
Does it snow in Middleton in September?
How many hours of daylight does Middleton have in September?
When is the sunrise / sunset in September in Middleton?
How many hours of sunshine does Middleton have in September?
How high is the UV index in September in Middleton?
Average temperature in September
Middleton, 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 (23.4°F).
- Average low temperature in September: 51.8°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 (10.9°F).
Average pressure in September
Middleton, 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
Middleton, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Middleton, 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
Middleton, WI
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Middleton, WI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in September
Middleton, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Middleton, 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
Middleton, 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 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Middleton, WI
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Middleton, 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 and December (UV index 1).
Average cloud cover in September
Middleton, WI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Middleton, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Middleton, Wisconsin, USA
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