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 advent of September presents an average high-temperature of a still warm 75°F (23.9°C), maintaining a close correlation with the preceding month. The average temperature in Kempton, Illinois, drops to a moderate 57.2°F (14°C) during the night in the month of September.Humidity
In September, the average relative humidity in Kempton is 77%.Rainfall
In September, the rain falls for 12.2 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. Throughout the year, in Kempton, there are 142.1 rainfall days, and 22.56" (573mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Kempton.Daylight
In Kempton, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:36 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September in Kempton, Illinois, is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Kempton?
What is the average humidity in September in Kempton?
How much does it rain in Kempton in September?
When it does not snow in Kempton?
Does it snow in Kempton in September?
How many hours of daylight does Kempton have in September?
When is the sunrise / sunset in September in Kempton?
How long on average sun shines in September in Kempton?
How high is the UV index in September in Kempton?
Average temperature in September
Kempton, IL
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Kempton, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Kempton, IL
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are January and April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Kempton, IL
- Average humidity in September: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Kempton, IL
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in September
Kempton, IL
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5 days).
Average snowfall in September
Kempton, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Kempton, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 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
Kempton, 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: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Kempton, IL
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Kempton, IL
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Kempton, IL
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in September
Kempton, IL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Kempton, Illinois, USA
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