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 shift from August to September includes a small decrease in the average high-temperature, from a tropical 89.2°F (31.8°C) to a moderately hot 82.2°F (27.9°C). Throughout September nights, Zion experiences a consistent temperature average of 61.5°F (16.4°C).Heat index
The heat index value for September is computed to be a hot 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Zion, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall in Zion. Rain falls for 12.9 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Zion, Arkansas, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:34 pm. On the last day of September, in Zion, sunrise is at 7:01 am and sunset at 6:51 pm CDT.
Sunshine
The average sunshine in September in Zion is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 in September translates into these instructions:
Make use of precautions - It is urged to ward off sun damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Zion?
What is the average humidity in September in Zion?
What is the driest month in Zion?
How many days does it rain in September in Zion?
When it does not snow in Zion?
What is the average length of the day in September in Zion?
What time are sunrise and sunset in September in Zion?
How many hours of sunshine does Zion have in September?
How high is the UV index in September in Zion?
Average temperature in September
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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
Zion, 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).
Zion, Arkansas, USA
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