September weather forecast
Plattenville, LA

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Weather in September

The first month of the autumn, September, is still a hot month in Plattenville, Louisiana, with an average temperature varying between 70.5°F (21.4°C) and 87.3°F (30.7°C).

Temperature

Plattenville's average high-temperature in September is a still hot 87.3°F (30.7°C), marking an insignificant difference from the 90.1°F (32.3°C) of August. September nights are marked by an average temperature drop to an agreeable 70.5°F (21.4°C).

Heat index

The average heat index in September is evaluated at a blisteringly hot 104°F (40°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

February, September and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Plattenville, in September, during 17.9 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Plattenville, during the entire year, the rain falls for 165.4 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

In Plattenville, the average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Plattenville?

The high-temperature in Plattenville during September is 87.3°F (30.7°C) and the low-temperature is 70.5°F (21.4°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 104°F (40°C).

What are the most humid months?

The months with the highest humidity are February, September and December, with an average relative humidity of 80%.

What is the average humidity in September?

The average relative humidity in September is 80%.

How much does it rain in September?

In Plattenville, in September, it is raining for 17.9 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow?

February through December are months without snowfall.

How many hours of daylight does Plattenville have in September?

In September, the average day length in Plattenville is 12h and 20min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Plattenville have in September?

The average sunshine duration in September is 9.7h.

What is the UV index intensity in September?

In Plattenville, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Plattenville, LA

Average temperature in September - Plattenville, LA
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (60.1°F).

  • Average low temperature in September: 70.5°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in September
Plattenville, LA

Average pressure in September - Plattenville, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in September
Plattenville, LA

Average wind speed in September - Plattenville, LA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Plattenville, LA

Average humidity in September - Plattenville, LA
  • Average humidity in September: 80%

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

Average rainfall in September
Plattenville, LA

Average rainfall in September - Plattenville, LA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (4.25").
The driest month (with the least rainfall) is November (1.18").

Average rainfall days in September
Plattenville, LA

Average rainfall days in September - Plattenville, LA
  • Average rainfall days in September: 17.9 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.1 days).

Average snowfall in September
Plattenville, LA

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

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Plattenville, LA

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

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Plattenville, LA
  • 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: 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: 5h and 0min).

Average sunshine days in September
Plattenville, LA

Average sunshine days in September - Plattenville, LA
  • Average sunshine days in September: 9.9 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September
Plattenville, LA

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

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

Average cloud cover in September
Plattenville, LA

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

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in September
Plattenville, LA

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

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

Plattenville, Louisiana, USA

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