September weather forecastSamples, AR
September
Weather in September
September, the first month of the autumn in Samples, is also a moderately hot month, with an average temperature varying between 85.8°F (29.9°C) and 65.1°F (18.4°C).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a hot 91.9°F (33.3°C) in August to a warm 85.8°F (29.9°C). In the month of September, Samples's average low-temperature falls to a comfortable 65.1°F (18.4°C).Heat index
September's heat index is calculated to be a sweltering 95°F (35°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and 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 are highly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In September, the average relative humidity is 72%.Rainfall
In September, the rain falls for 11.6 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. In Samples, during the entire year, the rain falls for 152.2 days and collects up to 35.59" (904mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Samples, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:42 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:53 pm CDT.
Sunshine
In Samples, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 in September translates into these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Samples, AR
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (50°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Samples, 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
Samples, AR
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are March and April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Samples, 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 (70%).
Average rainfall in September
Samples, AR
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is July (2.28").
Average rainfall days in September
Samples, AR
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Samples, AR
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Samples, AR
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and 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
Samples, 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: 9h and 54min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Samples, AR
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Samples, 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
Samples, 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
Samples, 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).





