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
Welcoming September, Clinton notes an average high-temperature of a moderately hot 81.7°F (27.6°C), nearly consistent with August's 86.5°F (30.3°C). During September, Clinton observes a consistent average nighttime temperature of 62.2°F (16.8°C).Heat index
September's mean heat index is computed to be a hot 86°F (30°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In September, the average relative humidity in Clinton is 72%.Rainfall
The month with the least rainfall in Clinton is September, when the rain falls for 11.8 days and typically collects 1.5" (38mm) of precipitation.Snowfall
In Clinton, snow does not fall in April through October.Daylight
In Clinton, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:40 pm CDT.
Sunshine
The average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Clinton is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the temperature in September in Clinton?
What is the average humidity in September in Clinton?
What is the driest month in Clinton?
How much does it rain in Clinton in September?
When it does not snow in Clinton?
How many hours of daylight does Clinton have in September?
When are sunrise and sunset in September in Clinton?
How many hours of sunshine does Clinton have in September?
What is the UV index reading in September in Clinton?
Average temperature in September
Clinton, KY
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Clinton, KY
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Clinton, KY
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are January, February, March and April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Clinton, KY
- Average humidity in September: 72%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Clinton, KY
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Clinton, KY
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Clinton, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Clinton, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Clinton, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Clinton, KY
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in September
Clinton, KY
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Clinton, KY
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Clinton, 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).
Clinton, Kentucky, USA
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