September weather forecastLowell, AR
September
Weather in September
September, the first month of the autumn in Lowell, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 60.6°F (15.9°C).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a tropical 88°F (31.1°C) in August to a warm 81°F (27.2°C). In September, Lowell experiences an average nighttime temperature of 60.6°F (15.9°C).Heat index
The average heat index in September is estimated at 84.2°F (29°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. 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 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In Lowell, Arkansas, the average relative humidity in September is 73%.Rainfall
In Lowell, during September, the rain falls for 14 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 161.1 rainfall days, and 34.09" (866mm) of precipitation is accumulated.Snowfall
In Lowell, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:48 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lowell, AR
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.4°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in September
Lowell, 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
Lowell, AR
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Lowell, AR
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are August and October (72%).
Average rainfall in September
Lowell, AR
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.81").
Average rainfall days in September
Lowell, AR
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in September
Lowell, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Lowell, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lowell, AR
- Average daylight in September: 12h and 24min
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 42min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Lowell, AR
- Average sunshine days in September: 14.1 days
The months with the most sunshine days are January and December (18.5 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in September
Lowell, 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
Lowell, AR
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Lowell, 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).
