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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 76.1°F (24.5°C) in August to a pleasant 68.9°F (20.5°C). Chili, during the month of September, experiences an average low-temperature of 50°F (10°C).Humidity
In Chili, the average relative humidity in September is 80%.Rainfall
In Chili, during September, the rain falls for 12.4 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Chili, there are 138.3 rainfall days, and 25.12" (638mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Chili, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:37 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:43 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Chili, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. It's recommended to limit sun exposure when its radiation is at its peak during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chili in September?
What is the average humidity in September?
How much does it rain in Chili in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Chili 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
Chili, WI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in September
Chili, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Chili, WI
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Chili, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Chili, WI
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Chili, WI
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Chili, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Chili, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chili, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 3min
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 0min).
Average sunshine days in September
Chili, WI
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in September
Chili, 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
Chili, WI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Chili, WI
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).
Chili, Wisconsin, USA
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