September weather forecast
Jonesville, LA

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Weather in September

September, the first month of the autumn in Jonesville, is also a hot month, with an average temperature fluctuating between 68.2°F (20.1°C) and 87.4°F (30.8°C).

Temperature

September observes an average high-temperature of a still hot 87.4°F (30.8°C), marking an insignificant difference from August's 91.2°F (32.9°C). Jonesville reports a consistent average low-temperature of 68.2°F (20.1°C) throughout September nights.

Heat index

For September, the heat index is evaluated at a sweltering 102.2°F (39°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in September is 75%.

Rainfall

In September, the rain falls for 15.2 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 166.6 rainfall days, and 35.79" (909mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:53 pm CDT.

Sunshine

In September, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 suggests this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

How hot is it in September?

An average high-temperature, in September, in Jonesville, is 87.4°F (30.8°C) and the average low-temperature is 68.2°F (20.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 102.2°F (39°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How much does it rain in September?

In Jonesville, in September, it is raining for 15.2 days, with typically 2.36" (60mm) of accumulated precipitation.

When it does not snow?

March through November are months without snowfall.

How many hours of daylight does Jonesville have in September?

In September, the average day length is 12h and 21min.

When is the sunrise / sunset in September?

On the first day of September in Jonesville, sunrise is at 6:43 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:53 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.6h.

What is the UV index intensity in September?

In Jonesville, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
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, LA

Average temperature in September - Jonesville, LA
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (55.6°F).

  • Average low temperature in September: 68.2°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).

Average pressure in September
Jonesville, LA

Average pressure in September - Jonesville, LA
  • Average pressure in September: 29.98"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
Jonesville, LA

Average wind speed in September - Jonesville, LA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest month (with the lowest average wind speed) is July (5mph).

Average humidity in September
Jonesville, LA

Average humidity in September - Jonesville, LA
  • Average humidity in September: 75%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Jonesville, LA

Average rainfall in September - Jonesville, LA
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in September
Jonesville, LA

Average rainfall days in September - Jonesville, LA
  • Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is August (18.2 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in September
Jonesville, LA

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

The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Jonesville, LA

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

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Jonesville, LA

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Jonesville, LA

Average sunshine days in September - Jonesville, LA
  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (10.6 days).

Average UV index in September
Jonesville, LA

Average UV index in September - Jonesville, LA
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Jonesville, LA

Average cloud cover in September - Jonesville, LA
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in September
Jonesville, LA

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

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

Jonesville, Louisiana, USA

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