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 transition into September shows a subtle variation to a moderately hot 83.3°F (28.5°C) from August's 88°F (31.1°C) in the average high-temperature. Marion throughout September, records an average low-temperature of 65.7°F (18.7°C).Heat index
In September, the heat index is computed to be a tropical 89.6°F (32°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.Always consider that heat index estimations are for light winds and places in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In September, the average relative humidity is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 8.2 days and accumulates 0.43" (11mm) of precipitation.Snowfall
In Marion, snow does not fall in April through October.Daylight
In Marion, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:33 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:45 pm CDT.
Sunshine
The average sunshine in September in Marion is 9.8h.UV index
In September, the average daily maximum UV index in Marion is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
How hot does it get in Marion in September?
What is the average humidity in September in Marion?
What is the driest month in Marion?
How much does it rain in Marion in September?
When it does not snow in Marion?
What is the average length of the day in September in Marion?
What time are sunrise and sunset in September in Marion?
How many hours of sunshine does Marion have in September?
What is the UV index intensity in September in Marion?
Average temperature in September
Marion, AR
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure in September
Marion, AR
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Marion, AR
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in September
Marion, AR
- Average humidity in September: 72%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Marion, AR
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Marion, AR
- Average rainfall days in September: 8.2 days
The months with the highest number of rainy days are May and July (12.3 days).
The month with the least rainy days is October (6.5 days).
Average snowfall in September
Marion, AR
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Marion, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Marion, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Marion, AR
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is June (14.9 days).
Average UV index in September
Marion, AR
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Marion, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Marion, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Marion, Arkansas, USA
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