September weather forecastSmithville, AR
September
Weather in September
September, the first month of the autumn in Smithville, is also a moderately hot month, with an average temperature ranging between max 82.2°F (27.9°C) and min 62.4°F (16.9°C).Temperature
Smithville's progression into September involves a gentle drop in the average high-temperature, from a hot 88.7°F (31.5°C) in August to a warm 82.2°F (27.9°C). Throughout September, the temperature tends to fall to a consistent average low of 62.4°F (16.9°C).Heat index
For September, the heat index is estimated at a tropical 87.8°F (31°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In Smithville, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.81" (46mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Smithville is 12h and 23min.On the first day of September, sunrise is at 6:37 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm CDT.
Sunshine
In Smithville, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Smithville is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Smithville, AR
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Smithville, 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
Smithville, AR
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are January, February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Smithville, AR
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Smithville, AR
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Smithville, AR
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is December (8.6 days).
Average snowfall in September
Smithville, AR
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Smithville, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Smithville, 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 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Smithville, AR
- Average sunshine days in September: 16 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Smithville, AR
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Smithville, AR
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Smithville, 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).
