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 brings a negligible change in high-temperatures, falling from a hot 91°F (32.8°C) in August to a warm 84.7°F (29.3°C). An average minimum temperature of 63.3°F (17.4°C) is recorded during the month of September.Heat index
For most parts of September, the heat index is computed to be a hot 93.2°F (34°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In Chester, the average relative humidity in September is 71%.Rainfall
In Chester, Arkansas, during September, the rain falls for 11.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, in Chester, there are 145.7 rainfall days, and 35.79" (909mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Chester, Arkansas.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Chester, Arkansas, sunrise is at 6:49 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm CDT.
Sunshine
The average sunshine in September in Chester is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
How hot is September in Chester?
What is the average humidity in September in Chester?
How many days does it rain in September in Chester?
When it does not snow in Chester?
How many hours of daylight does Chester have in September?
What time are sunrise and sunset in September in Chester?
How many hours of sunshine does Chester have in September?
What is the UV index reading in September in Chester?
Average temperature in September
Chester, AR
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Chester, 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
Chester, 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 July (4.7mph).
Average humidity in September
Chester, AR
- Average humidity in September: 71%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in September
Chester, AR
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in September
Chester, AR
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in September
Chester, AR
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Chester, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chester, 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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Chester, AR
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Chester, 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
Chester, AR
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Chester, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Chester, Arkansas, USA
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