September weather forecast
Prospect, LA

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Weather in September

The first month of the autumn, September, is still a hot month in Prospect, Louisiana, with an average temperature varying between 68°F (20°C) and 88°F (31.1°C).

Temperature

Prospect's entry into September measures an average high-temperature of a still hot 88°F (31.1°C), closely parallel to the preceding month. Prospect's temperature drops to an average low of 68°F (20°C) during the nights of September.

Heat index

For September, the heat index is estimated at a blistering 104°F (40°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Prospect, the average relative humidity in September is 76%.

Rainfall

In Prospect, during September, the rain falls for 13 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Prospect, during the entire year, the rain falls for 131.7 days and collects up to 14.29" (363mm) of precipitation.

Snowfall

In Prospect, Louisiana, snow does not fall in February through November.

Daylight

In Prospect, Louisiana, the average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:55 pm CDT.

Sunshine

The average sunshine in September in Prospect is 9.3h.

UV index

In Prospect, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, an average UV index of 6 transforms into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

How hot is September in Prospect?

During September, Prospect experiences an average high-temperature of 88°F (31.1°C) and a low-temperature of 68°F (20°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 104°F (40°C).

What is the average humidity in September in Prospect?

In September, the average relative humidity in Prospect, Louisiana, is 76%.

How many days does it rain in September in Prospect?

In Prospect, Louisiana, in September, it is raining for 13 days, with typically 1.14" (29mm) of accumulated precipitation.

When it does not snow in Prospect?

In Prospect, snow does not fall in February through November.

How many hours of daylight does Prospect have in September?

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

What time are sunrise and sunset in September in Prospect?

On the first day of September in Prospect, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:55 pm CDT.

How long on average sun shines in September in Prospect?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September in Prospect?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
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
Prospect, LA

Average temperature in September - Prospect, LA
  • Average high temperature in September: 88°F

The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in September: 68°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 (40.3°F).

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Average pressure in September
Prospect, LA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

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Average wind speed in September
Prospect, LA

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

The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

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Average humidity in September
Prospect, LA

Average humidity in September - Prospect, LA
  • Average humidity in September: 76%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Prospect, LA

Average rainfall in September - Prospect, LA
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is August (1.97").
The driest month (with the least rainfall) is November (0.75").

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Average rainfall days in September
Prospect, LA

Average rainfall days in September - Prospect, LA
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is November (6.5 days).

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Average snowfall in September
Prospect, LA

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

The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Prospect, LA

Average snowfall days in September - Prospect, 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 and October (0 days).

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

Average daylight in September / Average sunshine in September - Prospect, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Prospect, LA

Average sunshine days in September - Prospect, LA
  • Average sunshine days in September: 14 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in September
Prospect, LA

Average UV index in September - Prospect, 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).

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Average cloud cover in September
Prospect, LA

Average cloud cover in September - Prospect, LA
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in September
Prospect, LA

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

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

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Prospect, Louisiana, USA

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