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
The arrival of September denotes a barely perceptible change in the average high-temperatures to a still hot 86.9°F (30.5°C) from August's 91.9°F (33.3°C). During September, Wilmar records an average temperature of 66°F (18.9°C) at night.Heat index
In September, the average heat index is evaluated at a very hot 98.6°F (37°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In September, the average relative humidity is 71%.Rainfall
In Wilmar, during September, the rain falls for 11.2 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Wilmar, during the entire year, the rain falls for 138.5 days and collects up to 26.54" (674mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Wilmar, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:32 pm. On the last day of September, in Wilmar, sunrise is at 7:01 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index in Wilmar 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 the average person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
How hot does it get in Wilmar in September?
What is the average humidity in September in Wilmar?
How much does it rain in Wilmar in September?
When it does not snow in Wilmar?
How many hours of daylight does Wilmar have in September?
What time are sunrise and sunset in September in Wilmar?
How many hours of sunshine does Wilmar have in September?
What is the UV index reading in September in Wilmar?
Average temperature in September
Wilmar, AR
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in September
Wilmar, AR
- Average pressure in September: 29.99"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
Wilmar, AR
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Wilmar, AR
- Average humidity in September: 71%
The months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Wilmar, AR
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Wilmar, AR
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Wilmar, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Wilmar, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 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
Wilmar, 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 months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Wilmar, AR
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (21.4 days).
The months with the least sunshine days are July and August (12.9 days).
Average UV index in September
Wilmar, AR
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Wilmar, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Wilmar, 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).
Wilmar, Arkansas, USA
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