September weather forecastJonesville, FL
September
Weather in September
September, the first month of the autumn in Jonesville, is also a hot month, with an average temperature varying between 72.3°F (22.4°C) and 87.1°F (30.6°C).Temperature
September's advent notes a subtle adjustment in average high-temperature to a still hot 87.1°F (30.6°C) from August. Jonesville registers a consistent average low-temperature of 72.3°F (22.4°C) during September.Heat index
The heat index in September is computed to be a very hot 102.2°F (39°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 are of high significance for children. 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. 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
August and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Jonesville, in September, during 18.6 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Jonesville, during the entire year, the rain falls for 172 days and collects up to 27.64" (702mm) of precipitation.Daylight
In Jonesville, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Jonesville, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jonesville, FL
- Average high temperature in September: 87.1°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (63.9°F).
- Average low temperature in September: 72.3°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in September
Jonesville, 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
Jonesville, FL
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Jonesville, FL
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Jonesville, FL
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in September
Jonesville, FL
- Average rainfall days in September: 18.6 days
The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is November (7.8 days).
Average daylight in September /
Average sunshine in September
Jonesville, FL
- Average daylight in September: 12h and 18min
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 36min
The months with the most sunshine are May and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Jonesville, FL
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in September
Jonesville, 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 and December (UV index 4).
Average cloud cover in September
Jonesville, FL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 37).
The months with the least cloud cover are May and October (Cloud cover 27).
Average visibility in September
Jonesville, 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).
