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 advent of September brings a subtle shift in temperature, with the average high moving from a hot 91.4°F (33°C) in August to a warm 84°F (28.9°C). In Cecil, following the steep rise of daytime temperatures, an average nighttime low of 62.4°F (16.9°C) is anticipated during September.Heat index
For most parts of September, the heat index is estimated at a hot 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.One should consider that heat index numbers are for shaded settings and light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
The average relative humidity in September is 72%.Rainfall
In Cecil, in September, during 9.8 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Cecil, during the entire year, the rain falls for 139.2 days and collects up to 34.57" (878mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Cecil, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:00 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Cecil, Arkansas, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Cecil, AR
- Average high temperature in September: 84°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 (46.9°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in September
Cecil, 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
Cecil, AR
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity in September
Cecil, AR
- Average humidity in September: 72%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Cecil, AR
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is July (2.17").
Average rainfall days in September
Cecil, AR
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Cecil, AR
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Cecil, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.7 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
Cecil, 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Cecil, AR
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is December (20.1 days).
The month with the least sunshine days is April (13.8 days).
Average UV index in September
Cecil, AR
- Average UV index in September: 5
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
Cecil, AR
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Cecil, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are April and May (5mi).
Cecil, Arkansas, USA
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