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 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 brings an average high-temperature of a still hot 87.1°F (30.6°C), exhibiting minor difference from the previous month. Jonesboro's average low-temperature for the month of September records at a pleasant 73°F (22.8°C).Heat index
In September, the average heat index is evaluated at a torrid 102.2°F (39°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
September is the most humid month, with an average relative humidity of 77%.Rainfall
In September, the rain falls for 17 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 144.9 rainfall days, and 16.14" (410mm) of precipitation is accumulated.Snowfall
In Jonesboro, snow does not fall in January through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:10 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Jonesboro?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Jonesboro have in September?
What is the UV index reading in September?
Average temperature in September
Jonesboro, FL
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (63.1°F).
- Average low temperature in September: 73°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure in September
Jonesboro, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Jonesboro, FL
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Jonesboro, FL
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The months with the lowest relative humidity are January and March (72%).
Average rainfall in September
Jonesboro, FL
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is August (2.64").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in September
Jonesboro, FL
- Average rainfall days in September: 17 days
The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (6.1 days).
Average snowfall days in September
Jonesboro, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Jonesboro, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are May and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Jonesboro, FL
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in September
Jonesboro, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Jonesboro, FL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Jonesboro, FL
- 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).
Jonesboro, Florida, USA
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