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 shift from August to September coincides with a small decrease in the average high-temperature, down to a still warm 77.9°F (25.5°C) from a moderately hot 83.8°F (28.8°C). The month of September records an average low-temperature of 59°F (15°C) in Oakbrook.Humidity
August through October, with an average relative humidity of 74%, are the least humid months in Oakbrook.Rainfall
September is the month with the least rainfall in Oakbrook, Kentucky. Rain falls for 12.4 days and accumulates 1.34" (34mm) of precipitation.Snowfall
In Oakbrook, Kentucky, snow does not fall in May through September.Daylight
In Oakbrook, Kentucky, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:08 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:22 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Oakbrook, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily UV index of 5 turns into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the usual temperature for Oakbrook in September?
What are the least humid months in Oakbrook?
What is the average humidity in September in Oakbrook?
What is the driest month in Oakbrook?
How many days does it rain in September in Oakbrook?
When it does not snow in Oakbrook?
Does it snow in Oakbrook in September?
What is the average length of the day in September in Oakbrook?
When is the sunrise / sunset in September in Oakbrook?
How many hours of sunshine does Oakbrook have in September?
What is the UV index intensity in September in Oakbrook?
Average temperature in September
Oakbrook, KY
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Oakbrook, KY
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Oakbrook, KY
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Oakbrook, KY
- Average humidity in September: 74%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in September
Oakbrook, KY
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Oakbrook, KY
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Oakbrook, KY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Oakbrook, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Oakbrook, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Oakbrook, KY
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and June (12 days).
Average UV index in September
Oakbrook, KY
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Oakbrook, KY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Oakbrook, KY
- 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).
Oakbrook, Kentucky, USA
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