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
September's onset introduces a mild reduction in the average high-temperature, from a hot 91°F (32.8°C) in August to a moderately hot 85.3°F (29.6°C). An average minimum temperature of 64.9°F (18.3°C) marks the month of September in Base Line, Arkansas.Heat index
The average heat index in September is computed to be a torrid 95°F (35°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
In Base Line, Arkansas, the average relative humidity in September is 72%.Rainfall
In September, in Base Line, the rain falls for 13 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. In Base Line, during the entire year, the rain falls for 158.1 days and collects up to 38.03" (966mm) of precipitation.Snowfall
In Base Line, Arkansas, snow does not fall in April through October.Daylight
The average length of the day in September in Base Line is 12h and 23min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of September, in Base Line, sunrise is at 7:03 am and sunset at 6:54 pm CDT.
Sunshine
The average sunshine in September in Base Line is 9.5h.UV index
The average daily maximum UV index in September in Base Line is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
How hot is September in Base Line?
What is the average humidity in September in Base Line?
How many days does it rain in September in Base Line?
When it does not snow in Base Line?
How many hours of daylight does Base Line have in September?
What time are sunrise and sunset in September in Base Line?
How long on average sun shines in September in Base Line?
How high is the UV index in September in Base Line?
Average temperature in September
Base Line, AR
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Base Line, 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
Base Line, AR
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are February, March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Base Line, AR
- Average humidity in September: 72%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Base Line, AR
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is January (2.52").
Average rainfall days in September
Base Line, AR
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Base Line, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Base Line, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Base Line, 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: 9h and 54min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Base Line, AR
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Base Line, AR
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Base Line, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Base Line, 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).
Base Line, Arkansas, USA
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