September weather forecastSherrill, AR
September
Weather in September
September, the first month of the autumn in Sherrill, is also a moderately hot month, with an average temperature varying between 66.2°F (19°C) and 85.8°F (29.9°C).Temperature
September brings an average high-temperature of a moderately hot 85.8°F (29.9°C), showing a slight difference from August's 90.7°F (32.6°C). During the month of September, Sherrill's nighttime temperature lowers to an average of 66.2°F (19°C).Heat index
September's mean heat index is appraised at a fiery hot 95°F (35°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Note that heat index values are valued for light wind and location in the shade. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
In September, the average relative humidity is 71%.Rainfall
In September, in Sherrill, the rain falls for 9.8 days. Throughout September, 1.22" (31mm) of precipitation is accumulated. Throughout the year, in Sherrill, there are 130.3 rainfall days, and 18.54" (471mm) of precipitation is accumulated.Snowfall
In Sherrill, snow does not fall in March through December.Daylight
In Sherrill, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:33 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:52 pm CDT.
Sunshine
In September, the average sunshine is 9.7h.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 ordinary individuals.Note: The daily high UV index of 6 during September translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sherrill, AR
- Average high temperature in September: 85.8°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 (49.8°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in September
Sherrill, 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
Sherrill, AR
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Sherrill, AR
- Average humidity in September: 71%
The months with the highest relative humidity are February, March and December (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Sherrill, AR
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is April (1.93").
The driest month (with the least rainfall) is November (0.91").
Average rainfall days in September
Sherrill, AR
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in September
Sherrill, 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, October, November and December (0").
Average snowfall days in September
Sherrill, 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
Sherrill, 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 42min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Sherrill, AR
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Sherrill, 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
Sherrill, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Sherrill, 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).





