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
September is characterized by a slight reduction in average high-temperature, easing from a tropical 87.1°F (30.6°C) in August to a moderately hot 81.5°F (27.5°C). During September nights, Calvert City records an average temperature of 61.9°F (16.6°C).Heat index
For most parts of September, the heat index is computed to be a hot 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
The average relative humidity in September is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 7.1 days and typically collects 0.28" (7mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Calvert City, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:37 pm CDT.
Sunshine
In Calvert City, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Calvert City is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month in Calvert City?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Calvert City have in September?
What is the UV index intensity in September?
Average temperature in September
Calvert City, KY
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in September
Calvert City, KY
- Average pressure in September: 30.03"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
Calvert City, KY
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in September
Calvert City, 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 (71%).
Average rainfall in September
Calvert City, KY
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is February (1.06").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Calvert City, KY
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is November (5.7 days).
Average snowfall in September
Calvert City, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Calvert City, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 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
Calvert City, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in September
Calvert City, KY
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in September
Calvert City, 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, February and December (UV index 2).
Average cloud cover in September
Calvert City, KY
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in September
Calvert City, 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).
Calvert City, Kentucky, USA
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