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 91°F (32.8°C). During September, the temperature tends to dip to an average of 66°F (18.9°C) at night.Heat index
During September, the heat index is calculated to be a torrid 95°F (35°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
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. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 71%.Rainfall
In September, the rain falls for 10.9 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 135.9 rainfall days, and 23.15" (588mm) of precipitation is accumulated.Snowfall
In Whitefield, snow does not fall in March through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:41 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:52 pm CDT.
Sunshine
In Whitefield, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 during September translates into the following guidance:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. 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. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Whitefield have in September?
How high is the UV index in September?
Average temperature in September
Whitefield, AR
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 66°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 (36.1°F).
Average pressure in September
Whitefield, 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
Whitefield, AR
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Whitefield, AR
- Average humidity in September: 71%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Whitefield, AR
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is November (0.98").
Average rainfall days in September
Whitefield, AR
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in September
Whitefield, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Whitefield, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Whitefield, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Whitefield, AR
- Average sunshine days in September: 17 days
The months with the most sunshine days are October and November (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Whitefield, AR
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Whitefield, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Whitefield, 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).
Whitefield, Arkansas, USA
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