September weather forecastPerrytown, AR
September
Weather in September
The first month of the autumn, September, is also a hot month in Perrytown, Arkansas, with an average temperature varying between 65.7°F (18.7°C) and 86.9°F (30.5°C).Temperature
During the shift to September, Perrytown records a mild decrease in average high-temperature, moving from 93°F (33.9°C) in August to a still tropical 86.9°F (30.5°C). Throughout the September nights, Perrytown encounters a low-temperature of 65.7°F (18.7°C).Heat index
The heat index value during September is estimated at a sweltering 96.8°F (36°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 70%.Rainfall
In Perrytown, in September, during 11.3 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 142 rainfall days, and 27.17" (690mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of September, in Perrytown, Arkansas, sunrise is at 7:08 am and sunset at 6:59 pm CDT.
Sunshine
The average sunshine in September in Perrytown is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Perrytown, AR
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in September
Perrytown, AR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Perrytown, AR
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Perrytown, AR
- Average humidity in September: 70%
The months with the highest relative humidity are February, March and December (80%).
The months with the lowest relative humidity are August and September (70%).
Average rainfall in September
Perrytown, AR
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in September
Perrytown, AR
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Perrytown, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Perrytown, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Perrytown, AR
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Perrytown, AR
- Average sunshine days in September: 16.7 days
The months with the most sunshine days are January and October (20 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in September
Perrytown, AR
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Perrytown, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Perrytown, AR
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
