September weather forecastGravelly, AR
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Gravelly, Arkansas, with an average temperature varying between 84.7°F (29.3°C) and 62.4°F (16.9°C).Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a tropical 91.6°F (33.1°C) in August to a warm 84.7°F (29.3°C). September nights indicate a noticeable temperature drop from the daytime highs, with an average reading lowering to a comfortable 62.4°F (16.9°C).Heat index
The heat index value for September is estimated at a tropical 93.2°F (34°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In Gravelly, the average relative humidity in September is 73%.Rainfall
January and September are months with the least rain when the rain falls for 12.6 days and typically aggregates up to 2.09" (53mm) of rain.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:59 pm CDT.
Sunshine
The average sunshine in September in Gravelly is 9.4h.UV index
In Gravelly, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full 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
Gravelly, AR
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (48.4°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Gravelly, 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 (29.94"Hg).
Average wind speed in September
Gravelly, AR
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Gravelly, AR
- Average humidity in September: 73%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Gravelly, AR
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (4.96").
The driest months (with the least rainfall) are January and September (2.09").
Average rainfall days in September
Gravelly, AR
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Gravelly, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Gravelly, 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
Gravelly, 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 54min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Gravelly, AR
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in September
Gravelly, 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
Gravelly, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Gravelly, AR
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
