September weather forecastPoyen, AR
September
Weather in September
The first month of the autumn, September, is still a warm month in Poyen, Arkansas, with an average temperature varying between 85.5°F (29.7°C) and 64.8°F (18.2°C).Temperature
September's onset brings a negligible change in high-temperatures, falling from a hot 91.4°F (33°C) in August to a warm 85.5°F (29.7°C). During September, the average low-temperature is a comfortable 64.8°F (18.2°C).Heat index
During September, the heat index is evaluated at a fiery hot 95°F (35°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The months with the lowest humidity are July, September and October, with an average relative humidity of 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 2.24" (57mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:55 pm CDT.
Sunshine
In September, the average sunshine in Poyen is 9.5h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Poyen, AR
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in September: 64.8°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in September
Poyen, 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
Poyen, AR
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Poyen, AR
- Average humidity in September: 72%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July, September and October (72%).
Average rainfall in September
Poyen, AR
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in September
Poyen, AR
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Poyen, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Poyen, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Poyen, 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 30min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in September
Poyen, AR
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is January (18.6 days).
The month with the least sunshine days is August (10 days).
Average UV index in September
Poyen, AR
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Poyen, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in September
Poyen, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are May and December (5mi).
