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
Dumas sees the arrival of September with an average high-temperature of a moderately hot 85.5°F (29.7°C), indicating a subtle variation from August. An average low-temperature of 66.7°F (19.3°C) is anticipated throughout the nights during September.Heat index
The heat index for September is calculated to be a sweltering 95°F (35°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly relevant to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
The average relative humidity in September in Dumas is 72%.Rainfall
In Dumas, Arkansas, in September, during 12.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Dumas, during the entire year, the rain falls for 153.1 days and collects up to 40.47" (1028mm) of precipitation.Snowfall
In Dumas, snow does not fall in April through October.Daylight
In Dumas, Arkansas, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:31 pm. On the last day of September, in Dumas, sunrise is at 7:00 am and sunset at 6:51 pm CDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index in Dumas is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Dumas?
What is the average humidity in September in Dumas?
How many days does it rain in September in Dumas?
When it does not snow in Dumas?
What is the average length of the day in September in Dumas?
What time are sunrise and sunset in September in Dumas?
How many hours of sunshine does Dumas have in September?
What is the UV index intensity in September in Dumas?
Average temperature in September
Dumas, AR
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 66.7°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Dumas, 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
Dumas, AR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Dumas, AR
- Average humidity in September: 72%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Dumas, AR
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in September
Dumas, AR
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is October (8.6 days).
Average snowfall in September
Dumas, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Dumas, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Dumas, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Dumas, AR
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Dumas, AR
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Dumas, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Dumas, 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).
Dumas, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location