September weather forecast
Prairieville, LA

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Weather in September

September, the first month of the autumn in Prairieville, is also a hot month, with an average temperature ranging between max 87.4°F (30.8°C) and min 70.5°F (21.4°C).

Temperature

With the transition into September, Prairieville notes an average high-temperature of a still tropical 87.4°F (30.8°C), closely resembling August. Throughout the month of September, Prairieville witnesses an average temperature of 70.5°F (21.4°C).

Heat index

For most parts of September, the heat index is evaluated at an extremely hot 104°F (40°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Prairieville, the average relative humidity in September is 79%.

Rainfall

In Prairieville, in September, during 14.9 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Prairieville, during the entire year, the rain falls for 151.5 days and collects up to 18.62" (473mm) of precipitation.

Snowfall

February through December are months without snowfall in Prairieville.

Daylight

In September, the average length of the day in Prairieville 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, in Prairieville, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September is 9.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 in September translates into this advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

How hot is it in Prairieville in September?

The high-temperature, in September, in Prairieville, is 87.4°F (30.8°C), while the low-temperature averages to 70.5°F (21.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is evaluated at 104°F (40°C).

What is the average humidity in September in Prairieville?

The average relative humidity in September in Prairieville, Louisiana, is 79%.

How many days does it rain in September in Prairieville?

In Prairieville, in September, during 14.9 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Prairieville?

February through December are months without snowfall.

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

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

When are sunrise and sunset in September in Prairieville?

On the first day of September in Prairieville, Louisiana, 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 Prairieville have in September?

In Prairieville, the average sunshine duration in September is 9.9h.

How high is the UV index in September in Prairieville?

In Prairieville, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to 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
Prairieville, LA

Average temperature in September - Prairieville, LA
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.2°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 (43.5°F).

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Average pressure in September
Prairieville, LA

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

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

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Average wind speed in September
Prairieville, LA

Average wind speed in September - Prairieville, LA
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in September
Prairieville, LA

Average humidity in September - Prairieville, LA
  • Average humidity in September: 79%

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

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Average rainfall in September
Prairieville, LA

Average rainfall in September - Prairieville, LA
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (3.03").
The driest months (with the least rainfall) are March and November (0.98").

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Average rainfall days in September
Prairieville, LA

Average rainfall days in September - Prairieville, LA
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in September
Prairieville, LA

Average snowfall in September - Prairieville, 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
Prairieville, LA

Average snowfall days in September - Prairieville, 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, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Prairieville, 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).

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Average sunshine days in September
Prairieville, LA

Average sunshine days in September - Prairieville, LA
  • Average sunshine days in September: 12.9 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (9.3 days).

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Average UV index in September
Prairieville, LA

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

The months with the highest UV index are May, 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
Prairieville, LA

Average cloud cover in September - Prairieville, 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).

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Average visibility in September
Prairieville, LA

Average visibility in September - Prairieville, 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).

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Prairieville, Louisiana, USA

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