September weather forecast
Grant, LA

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Weather in September

September, the first month of the autumn in Grant, is still a tropical month, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 69.4°F (20.8°C).

Temperature

Grant greets September with an average high-temperature of a still tropical 86.9°F (30.5°C), marking a slight deviation from the preceding month. The average low-temperature of 69.4°F (20.8°C) is witnessed during September.

Heat index

The heat index value for September is estimated at a torrid 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Grant, the average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 15.2 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 140.7 rainfall days, and 15.55" (395mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January, February, September and December. September is the first month it typically snows. Throughout September, there are 0.1 snowfall days. In Grant, during the entire year, snow falls for 0.5 days.

Daylight

In Grant, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:57 pm CDT.

Sunshine

In September, the average sunshine in Grant is 9.6h.

UV index

The average daily maximum UV index in September in Grant is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

How hot is it in September?

The average high-temperature, in September, in Grant, is 86.9°F (30.5°C), while the average low-temperature is 69.4°F (20.8°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 102.2°F (39°C).

What is the average humidity in September?

In Grant, Louisiana, the average relative humidity in September is 78%.

How many days does it rain in September in Grant?

In Grant, in September, during 15.2 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When does it start snowing?

September is the first month it typically snows. Throughout September, there are 0.1 snowfall days.

How many hours of daylight does Grant have in September?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:57 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.6h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Grant, LA

Average temperature in September - Grant, LA
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (58.1°F).

  • Average low temperature in September: 69.4°F

The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in September
Grant, LA

Average pressure in September - Grant, LA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Grant, LA

Average wind speed in September - Grant, LA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

Average humidity in September
Grant, LA

Average humidity in September - Grant, LA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Grant, LA

Average rainfall in September - Grant, LA
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (0.75").

Average rainfall days in September
Grant, LA

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

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.9 days).

Average snowfall days in September
Grant, LA

Average snowfall days in September - Grant, LA
  • Average snowfall days in September: 0.1 days

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

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

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

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

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Grant, LA

Average sunshine days in September - Grant, LA
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is August (9.3 days).

Average UV index in September
Grant, LA

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

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

Average cloud cover in September
Grant, LA

Average cloud cover in September - Grant, LA
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in September
Grant, LA

Average visibility in September - Grant, 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).

Grant, Louisiana, USA

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