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
Arnett experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a hot 87.8°F (31°C) in August to a moderately hot 80.6°F (27°C). During September nights, Arnett records an average temperature of 61°F (16.1°C).Heat index
Throughout September, the heat index is appraised at 84.2°F (29°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In September, the average relative humidity in Arnett is 74%.Rainfall
In Arnett, during September, the rain falls for 12.6 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 148.7 rainfall days, and 32.48" (825mm) of precipitation is accumulated.Snowfall
In Arnett, Arkansas, snow does not fall in June through October.Daylight
In Arnett, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:43 pm. On the last day of September, in Arnett, sunrise is at 7:10 am and sunset at 7:00 pm CDT.
Sunshine
The average sunshine in September is 9.2h.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 unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the average September temperature in Arnett?
What is the average humidity in September in Arnett?
How many days does it rain in September in Arnett?
When it does not snow in Arnett?
What is the average length of the day in September in Arnett?
When is the sunrise / sunset in September in Arnett?
How many hours of sunshine does Arnett have in September?
How high is the UV index in September in Arnett?
Average temperature in September
Arnett, AR
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in September: 61°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in September
Arnett, AR
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Arnett, AR
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Arnett, AR
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Arnett, AR
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in September
Arnett, AR
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is November (8 days).
Average snowfall in September
Arnett, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Arnett, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arnett, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
Arnett, AR
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in September
Arnett, AR
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Arnett, AR
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Arnett, 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).
Arnett, Arkansas, USA
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