Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September sees the average high-temperature at a still tropical 86°F (30°C), showing little difference from August's 89.8°F (32.1°C). The average temperature during September nights dips to a pleasant 71.8°F (22.1°C).Heat index
The heat index in September is estimated at a very hot 98.6°F (37°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Perry, the average relative humidity in September is 79%.Rainfall
In Perry, in September, it is raining for 15.5 days, with typically 1.61" (41mm) of accumulated precipitation. 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 the month, sunrise is at 6:46 am and sunset at 7:30 pm. On the last day of September, in Perry, sunrise is at 7:01 am and sunset at 6:54 pm CDT.
Sunshine
In September, the average sunshine in Perry is 10h.UV index
In September, the average daily maximum UV index in Perry is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
How hot is September in Perry?
What is the average humidity in September in Perry?
How many days does it rain in September in Perry?
When it does not snow in Perry?
What is the average length of the day in September in Perry?
When are sunrise and sunset in September in Perry?
How long on average sun shines in September in Perry?
What is the UV index intensity in September in Perry?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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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