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
As September arrives, East Troy's weather displays a minor decrease in high-temperatures, transitioning from August's warm 77.5°F (25.3°C) to an agreeable 71.8°F (22.1°C). During the month of September, East Troy anticipates a mean low-temperature of 53.6°F (12°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In East Troy, during September, the rain falls for 13 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 150.4 rainfall days, and 28.43" (722mm) of precipitation is accumulated.Snowfall
In East Troy, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:19 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:36 pm CDT.
Sunshine
In East Troy, the average sunshine in September is 8.8h.UV index
In East Troy, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in East Troy?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does East Troy have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
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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