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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from 93.9°F (34.4°C) in August to a still hot 87.3°F (30.7°C). The nighttime temperature dips to an enjoyable 66.2°F (19°C) on average during September.Heat index
During September, the heat index is estimated at a fiery hot 98.6°F (37°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in September is 69%.Rainfall
The month with the least rainfall in Dave is September, when the rain falls for 12.3 days and typically collects 2.2" (56mm) of precipitation.Snowfall
In Dave, snow does not fall in April through October.Daylight
The average length of the day in September in Dave is 12h and 22min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:40 pm. On the last day of September, in Dave, Arkansas, sunrise is at 7:09 am and sunset at 7:00 pm CDT.
Sunshine
In Dave, the average sunshine in September is 9.6h.UV index
In Dave, Arkansas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 6 in September transforms into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
How hot is it in Dave in September?
What is the average humidity in September in Dave?
What is the driest month in Dave?
How many days does it rain in September in Dave?
When it does not snow in Dave?
What is the average length of the day in September in Dave?
When are sunrise and sunset in September in Dave?
How many hours of sunshine does Dave have in September?
What is the UV index reading in September in Dave?
Average temperature in September
Dave, AR
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in September
Dave, AR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Dave, AR
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Dave, AR
- Average humidity in September: 69%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Dave, AR
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Dave, AR
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in September
Dave, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Dave, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Dave, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Dave, AR
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is January (19.4 days).
The months with the least sunshine days are July and August (12 days).
Average UV index in September
Dave, AR
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Dave, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Dave, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Dave, Arkansas, USA
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