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 to September signals an average high-temperature of a still moderately hot 76.5°F (24.7°C), subtly varied from August's 81.7°F (27.6°C). Throughout September, an average low-temperature of 56.7°F (13.7°C) is experienced in Oquawka, Illinois.Humidity
In September, the average relative humidity in Oquawka is 75%.Rainfall
In Oquawka, in September, during 11.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 150.9 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Oquawka, Illinois, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:46 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Oquawka, Illinois, 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 radiation for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What are September temperatures in Oquawka?
What is the average humidity in September in Oquawka?
How many days does it rain in September in Oquawka?
When it does not snow in Oquawka?
Does it snow in Oquawka in September?
How many hours of daylight does Oquawka have in September?
When is the sunrise / sunset in September in Oquawka?
How many hours of sunshine does Oquawka have in September?
How high is the UV index in September in Oquawka?
Average temperature in September
Oquawka, IL
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in September
Oquawka, IL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Oquawka, IL
- Average wind speed in September: 7.8mph
The windiest months (with the highest average wind speed) are January and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Oquawka, IL
- Average humidity in September: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Oquawka, IL
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are January and December (1.46").
Average rainfall days in September
Oquawka, IL
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Oquawka, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Oquawka, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 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
Oquawka, IL
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Oquawka, IL
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in September
Oquawka, IL
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Oquawka, IL
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in September
Oquawka, IL
- 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).
Oquawka, Illinois, USA
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