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
A modest decline in the average high-temperature is seen during September, decreasing from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.8°F (22.1°C). During September nights, East Troy records an average temperature of 53.6°F (12°C).Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 13 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. In East Troy, during the entire year, the rain falls for 150.4 days and collects up to 28.43" (722mm) of precipitation.Snowfall
June through September are months without snowfall in East Troy, Wisconsin.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:27 pm. On the last day of September, in East Troy, sunrise is at 6:50 am and sunset at 6:36 pm CDT.
Sunshine
In September, the average sunshine in East Troy is 8.8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Undertake protective steps - Preventing sun damage is advised. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What is the average September temperature in East Troy?
What is the average humidity in September in East Troy?
How many days does it rain in September in East Troy?
When it does not snow in East Troy?
Does it snow in East Troy in September?
How many hours of daylight does East Troy have in September?
What time are sunrise and sunset in September in East Troy?
How many hours of sunshine does East Troy have in September?
How high is the UV index in September in East Troy?
Average temperature in September
East Troy, WI
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in September
East Troy, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
East Troy, WI
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
East Troy, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
East Troy, WI
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in September
East Troy, WI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
East Troy, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
East Troy, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
East Troy, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
East Troy, WI
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
East Troy, WI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
East Troy, WI
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in September
East Troy, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
East Troy, Wisconsin, USA
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