September weather forecastLucas, AR
September
Weather in September
September, the first month of the autumn in Lucas, is also a moderately hot month, with an average temperature ranging between max 84.6°F (29.2°C) and min 62.4°F (16.9°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a tropical 91.4°F (33°C) to a warm 84.6°F (29.2°C). Contrasted against daytime highs, Lucas records an average nighttime low of 62.4°F (16.9°C) in September.Heat index
The heat index value for September is appraised at a hot 93.2°F (34°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in September is 72%.Rainfall
In Lucas, during September, the rain falls for 11.8 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 147.6 rainfall days, and 36.89" (937mm) of precipitation is accumulated.Snowfall
In Lucas, Arkansas, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:49 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm CDT.
Sunshine
In Lucas, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lucas, AR
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in September: 62.4°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 (31.5°F).
Average pressure in September
Lucas, 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
Lucas, AR
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Lucas, AR
- Average humidity in September: 72%
The months with the highest relative humidity are February, March and May (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Lucas, AR
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in September
Lucas, AR
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is August (15.1 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Lucas, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lucas, 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
Lucas, AR
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Lucas, AR
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (20.1 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Lucas, AR
- Average UV index in September: 5
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
Lucas, AR
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Lucas, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
