Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a tropical 91.6°F (33.1°C) in August to a moderately hot 84.6°F (29.2°C). Dayton's September nights represent a significant downturn from the day's heat, with an average temperature of 62.2°F (16.8°C).Heat index
September's average heat index is evaluated at a hot 93.2°F (34°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. 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 a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In Dayton, the average relative humidity in September is 73%.Rainfall
In September, the rain falls for 12.3 days. Throughout September, 3.27" (83mm) of precipitation is accumulated. Throughout the year, in Dayton, there are 148.5 rainfall days, and 35.75" (908mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Dayton.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:50 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
The average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
How hot is it in Dayton in September?
What is the average humidity in September in Dayton?
How many days does it rain in September in Dayton?
When it does not snow in Dayton?
What is the average length of the day in September in Dayton?
When is the sunrise / sunset in September in Dayton?
How long on average sun shines in September in Dayton?
What is the UV index intensity in September in Dayton?
Average temperature in September
Dayton, AR
- Average high temperature in September: 84.6°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 (48.7°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Dayton, 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
Dayton, AR
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Dayton, AR
- Average humidity in September: 73%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Dayton, AR
- Average rainfall in September: 3.27"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in September
Dayton, AR
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in September
Dayton, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Dayton, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Dayton, AR
- Average daylight in September: 12h and 2min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Dayton, AR
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in September
Dayton, 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
Dayton, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are June and August (Cloud cover 26).
Average visibility in September
Dayton, 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).
Dayton, Arkansas, USA
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