September weather forecastClow, AR
September
Weather in September
September, the first month of the autumn in Clow, is also a hot month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 65.7°F (18.7°C).Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from 93°F (33.9°C) in August to a still tropical 86.5°F (30.3°C). During the month of September, Clow's nighttime temperature lowers to an average of 65.7°F (18.7°C).Heat index
For most parts of September, the heat index is computed to be a sweltering 96.8°F (36°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In September, the average relative humidity is 71%.Rainfall
September is the month with the least rainfall in Clow. Rain falls for 12.2 days and accumulates 2.44" (62mm) of precipitation.Snowfall
In Clow, snow does not fall in April through December.Daylight
The average length of the day in September 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, sunrise is at 7:09 am and sunset at 7:00 pm CDT.
Sunshine
The average sunshine in September in Clow is 9.3h.UV index
In Clow, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clow, AR
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in September
Clow, 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
Clow, AR
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Clow, AR
- Average humidity in September: 71%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Clow, AR
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days in September
Clow, AR
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is January (10.4 days).
Average snowfall in September
Clow, 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, November and December (0").
Average snowfall days in September
Clow, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Clow, AR
- Average daylight in September: 12h and 24min
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 18min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Clow, AR
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in September
Clow, 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
Clow, AR
- Average cloud cover in September: 29
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
Clow, AR
- Average visibility in September: 6mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
