September weather forecast
Reserve, LA

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Weather in September

September, the first month of the autumn in Reserve, is still a hot month, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 72.5°F (22.5°C).

Temperature

September's beginning signals an average high-temperature of a still hot 86.9°F (30.5°C), barely different from August's 89.6°F (32°C). September's nights in Reserve observe an average temperature of 72.5°F (22.5°C).

Heat index

Throughout September, the heat index is calculated to be a very hot 102.2°F (39°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. 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. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Reserve, Louisiana, in September, it is raining for 18.3 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, in Reserve, Louisiana, there are 174 rainfall days, and 34.76" (883mm) of precipitation is accumulated.

Snowfall

In Reserve, snow does not fall in February through December.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

Sunshine

The average sunshine in September is 10.1h.

UV index

The average daily maximum UV index in September in Reserve is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

Is it hot in Reserve during September?

The average high-temperature and low-temperature in Reserve during September are 86.9°F (30.5°C) and 72.5°F (22.5°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 102.2°F (39°C).

What is the average humidity in September in Reserve?

The average relative humidity in September in Reserve is 78%.

How many days does it rain in September in Reserve?

In September, the rain falls for 18.3 days. Throughout September, 2.76" (70mm) of precipitation is accumulated.

When it does not snow in Reserve?

In Reserve, Louisiana, snow does not fall in February through December.

What is the average length of the day in September in Reserve?

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

When are sunrise and sunset in September in Reserve?

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of the month, in Reserve, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

How many hours of sunshine does Reserve have in September?

In September, the average sunshine duration in Reserve is 10.1h.

How high is the UV index in September in Reserve?

In Reserve, Louisiana, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Reserve, LA

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

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in September: 72.5°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46°F).

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Average pressure in September
Reserve, LA

Average pressure in September - Reserve, 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, August and September (29.97"Hg).

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Average wind speed in September
Reserve, LA

Average wind speed in September - Reserve, LA
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are January, February and April (8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

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Average humidity in September
Reserve, LA

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

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Reserve, LA

Average rainfall in September - Reserve, LA
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is July (5.55").
The driest month (with the least rainfall) is November (1.5").

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Average rainfall days in September
Reserve, LA

Average rainfall days in September - Reserve, LA
  • Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is November (7.7 days).

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Average snowfall in September
Reserve, LA

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

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Reserve, LA

Average snowfall days in September - Reserve, 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).

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

Average daylight in September / Average sunshine in September - Reserve, 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: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Reserve, LA

Average sunshine days in September - Reserve, LA
  • Average sunshine days in September: 8.7 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (6 days).

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Average UV index in September
Reserve, LA

Average UV index in September - Reserve, 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).

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Average cloud cover in September
Reserve, LA

Average cloud cover in September - Reserve, LA
  • Average cloud cover in September: 27

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).

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Average visibility in September
Reserve, LA

Average visibility in September - Reserve, LA
  • 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).

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Reserve, Louisiana, USA

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