September weather forecast
Glenmore, LA

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Weather in September

September, the first month of the autumn in Glenmore, is also a hot month, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 70.5°F (21.4°C).

Temperature

The arrival of September is marked by an average high-temperature of a still tropical 87.3°F (30.7°C), bearing a close resemblance to August. Glenmore reports a consistent average low-temperature of 70.5°F (21.4°C) throughout September nights.

Heat index

September's heat index is appraised at a blistering 104°F (40°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. 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. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to 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 physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Glenmore, during September, the rain falls for 17 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Glenmore, during the entire year, the rain falls for 154.1 days and collects up to 17.91" (455mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September is 9.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, an average UV index of 6 transforms into the following instructions:
Fend off overexposure. Sun protection is vital. 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. 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: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

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

What is the average humidity in September?

The average relative humidity in September is 80%.

How many days does it rain in September?

In Glenmore, during September, the rain falls for 17 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When it does not snow?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of the month, in Glenmore, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Glenmore have in September?

In September, the average sunshine duration is 9.8h.

What is the UV index reading in September?

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 unsafe exposure to Sun's UV rays.
Average max. wind speed
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
Glenmore, LA

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

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (59.4°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 (44.1°F).

Average pressure in September
Glenmore, LA

Average pressure in September - Glenmore, 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
Glenmore, LA

Average wind speed in September - Glenmore, LA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September
Glenmore, LA

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Glenmore, LA

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

The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is November (0.79").

Average rainfall days in September
Glenmore, LA

Average rainfall days in September - Glenmore, LA
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (7.2 days).

Average snowfall in September
Glenmore, LA

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

The month with the highest snowfall is January (0.12").
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
Glenmore, LA

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

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Glenmore, 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 5min

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 6min).

Average sunshine days in September
Glenmore, LA

Average sunshine days in September - Glenmore, LA
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in September
Glenmore, LA

Average UV index in September - Glenmore, 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
Glenmore, LA

Average cloud cover in September - Glenmore, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in September
Glenmore, LA

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

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

Glenmore, Louisiana, USA

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