September weather forecast
Jonesville, GA

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Weather in September

September, the first month of the autumn in Jonesville, is also a moderately hot month, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 83.3°F (28.5°C).

Temperature

Jonesville's weather in September, with an average high-temperature of a warm 83.3°F (28.5°C), subtly shifts from August's 87.4°F (30.8°C). In September, the nighttime temperature lowers to an average of 63.7°F (17.6°C).

Heat index

September's mean heat index is calculated to be a hot 91.4°F (33°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Jonesville, in September, during 14.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 182.8 rainfall days, and 41.5" (1054mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Jonesville, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:26 pm EDT.

Sunshine

In Jonesville, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, a regular UV index of 5 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

How hot does it get in September?

In September, the average high-temperature and low-temperature are 83.3°F (28.5°C) and 63.7°F (17.6°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How many days does it rain in September?

In Jonesville, in September, during 14.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

In Jonesville, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:26 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration in Jonesville is 8.5h.

What is the UV index reading in September?

In Jonesville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jonesville, GA

Average temperature in September - Jonesville, GA
  • Average high temperature in September: 83.3°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 (50.5°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in September
Jonesville, GA

Average pressure in September - Jonesville, GA
  • 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 (29.99"Hg).

Average wind speed in September
Jonesville, GA

Average wind speed in September - Jonesville, GA
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Jonesville, GA

Average humidity in September - Jonesville, GA
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (74%).

Average rainfall in September
Jonesville, GA

Average rainfall in September - Jonesville, GA
  • Average rainfall in September: 2.87"

The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is October (2.09").

Average rainfall days in September
Jonesville, GA

Average rainfall days in September - Jonesville, GA
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in September
Jonesville, GA

Average snowfall in September - Jonesville, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Jonesville, GA

Average snowfall days in September - Jonesville, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.3 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
Jonesville, GA

Average daylight in September / Average sunshine in September - Jonesville, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Jonesville, GA

Average sunshine days in September - Jonesville, GA
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.3 days).

Average UV index in September
Jonesville, GA

Average UV index in September - Jonesville, GA
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Jonesville, GA

Average cloud cover in September - Jonesville, GA
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in September
Jonesville, GA

Average visibility in September - Jonesville, GA
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, May, June, October and November (6mi).
The months with the lowest visibility are July, August, September and December (5mi).

Jonesville, Georgia, USA

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