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 beginning of September brings a slight decrease in the average high-temperature, transitioning from a hot 89.2°F (31.8°C) in August to a moderately hot 82.2°F (27.9°C). Guion's average low-temperature for the month of September records at an enjoyable 61.5°F (16.4°C).Heat index
The heat index for September is appraised at a tropical 87.8°F (31°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.Research indicates the heat index considers values in shaded locales and with light 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 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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.
Humidity
In Guion, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.89" (48mm) of precipitation.Snowfall
In Guion, snow does not fall in April through October.Daylight
In Guion, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:52 pm CDT.
Sunshine
In Guion, the average sunshine in September is 9.4h.UV index
In Guion, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in Guion?
What time are sunrise and sunset in September?
How many hours of sunshine does Guion have in September?
How high is the UV index in September?
Average temperature in September
Guion, AR
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Guion, AR
- Average pressure in September: 30.02"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
Guion, AR
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Guion, AR
- Average humidity in September: 74%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Guion, AR
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Guion, AR
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Guion, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Guion, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Guion, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
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 June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Guion, AR
- Average sunshine days in September: 14 days
The months with the most sunshine days are January and December (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Guion, AR
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Guion, AR
- Average cloud cover in September: 30
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Guion, 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).
Guion, Arkansas, USA
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