September weather forecast
Perry, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Perry, Louisiana, with an average temperature ranging between max 86°F (30°C) and min 71.8°F (22.1°C).

Temperature

Perry's weather in September indicates an average high-temperature of a still hot 86°F (30°C), nearly consistent with the 89.8°F (32.1°C) of August. Perry's nighttime temperature in September falls to an average of 71.8°F (22.1°C).

Heat index

September's heat index is appraised at a fiery hot 98.6°F (37°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

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

Rainfall

In September, the rain falls for 15.5 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Perry, during the entire year, the rain falls for 148.8 days and collects up to 22.24" (565mm) of precipitation.

Snowfall

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

Daylight

In Perry, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:46 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:54 pm CDT.

Sunshine

The average sunshine in September is 10h.

UV index

In Perry, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In September, the average high-temperature and low-temperature are 86°F (30°C) and 71.8°F (22.1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 98.6°F (37°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

How much does it rain in Perry in September?

In September, the rain falls for 15.5 days. Throughout September, 1.61" (41mm) of precipitation is accumulated.

When it does not snow?

February through November are months without snowfall.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:46 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:54 pm CDT.

How long on average sun shines in September in Perry?

The average sunshine duration in September is 10h.

How high is the UV index in September?

In Perry, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Perry, LA

Average temperature in September - Perry, LA
  • Average high temperature in September: 86°F

The warmest months (with the highest average high temperature) are July and August (89.8°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 71.8°F

The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (45.3°F).

Average pressure in September
Perry, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

Average wind speed in September
Perry, LA

Average wind speed in September - Perry, LA
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in September
Perry, LA

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

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Perry, LA

Average rainfall in September - Perry, LA
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (1.18").

Average rainfall days in September
Perry, LA

Average rainfall days in September - Perry, LA
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Perry, LA

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

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

Average snowfall days in September
Perry, LA

Average snowfall days in September - Perry, 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).

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Perry, LA

Average sunshine days in September - Perry, LA
  • Average sunshine days in September: 12 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is August (9.3 days).

Average UV index in September
Perry, LA

Average UV index in September - Perry, 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).

Average cloud cover in September
Perry, LA

Average cloud cover in September - Perry, 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 24).

Average visibility in September
Perry, LA

Average visibility in September - Perry, 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).

Perry, Louisiana, USA

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