September weather forecastLincoln, AR
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Lincoln, Arkansas, with an average temperature ranging between min 61.7°F (16.5°C) and max 81.7°F (27.6°C).Temperature
September reveals a small adjustment in temperature, transitioning from an average high of a tropical 89.1°F (31.7°C) in August to a warm 81.7°F (27.6°C). The average temperature during September nights dips to a refreshing 61.7°F (16.5°C).Heat index
For most parts of September, the heat index is computed to be a tropical 86°F (30°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Realize that the values for the heat index are set for shaded places and light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In September, the average relative humidity is 73%.Rainfall
In Lincoln, during September, the rain falls for 12.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Lincoln, during the entire year, the rain falls for 146.8 days and collects up to 33.11" (841mm) of precipitation.Snowfall
In Lincoln, snow does not fall in June through October.Daylight
In Lincoln, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index in Lincoln is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Exercise prevention - Warding off sunburn is urged. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lincoln, AR
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in September
Lincoln, AR
- Average pressure in September: 30.01"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
Lincoln, AR
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Lincoln, AR
- Average humidity in September: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Lincoln, AR
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in September
Lincoln, AR
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and November (8 days).
Average snowfall in September
Lincoln, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Lincoln, AR
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Lincoln, 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 48min).
- Average sunshine in September: 9h and 18min
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 24min).
Average sunshine days in September
Lincoln, AR
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Lincoln, AR
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Lincoln, 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
Lincoln, 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).





