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
Transitioning into September, Hayley records an average high-temperature of a warm 84.2°F (29°C), almost identical to August's 88.7°F (31.5°C). September nights in Hayley are marked by an average temperature drop to an enjoyable 65.3°F (18.5°C).Heat index
The average heat index in September is calculated to be a tropical 91.4°F (33°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Consider that heat index readings are for situations in the shade and light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The average relative humidity in September is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.3 days and typically collects 1.77" (45mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Hayley is 12h and 23min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:32 pm. On the last day of September, in Hayley, sunrise is at 7:01 am and sunset at 6:51 pm CDT.
Sunshine
In Hayley, the average sunshine in September is 9.6h.UV index
In Hayley, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
How hot does it get in Hayley in September?
What is the average humidity in September in Hayley?
What is the driest month in Hayley?
How much does it rain in Hayley in September?
When it does not snow in Hayley?
How many hours of daylight does Hayley have in September?
What time are sunrise and sunset in September in Hayley?
How long on average sun shines in September in Hayley?
What is the UV index intensity in September in Hayley?
Average temperature in September
Hayley, AR
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (47.3°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Hayley, AR
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Hayley, AR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Hayley, AR
- Average humidity in September: 72%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Hayley, AR
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Hayley, AR
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are October and November (9.6 days).
Average snowfall in September
Hayley, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Hayley, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hayley, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Hayley, AR
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in September
Hayley, AR
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Hayley, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are June and August (Cloud cover 26).
Average visibility in September
Hayley, AR
- 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).
Hayley, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location
