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
Keiser's September reports an average high-temperature of a moderately hot 82.6°F (28.1°C), exhibiting a minor difference from August. September's average low-temperature reading in Keiser settles at a refreshing 64°F (17.8°C).Heat index
In September, the heat index is computed to be a tropical 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In September, the average relative humidity in Keiser, Arkansas, is 73%.Rainfall
The month with the least rainfall in Keiser is September, when the rain falls for 10.7 days and typically collects 1.69" (43mm) of precipitation.Snowfall
April through September are months without snowfall in Keiser, Arkansas.Daylight
In Keiser, 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
In Keiser, Arkansas, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September in Keiser is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Keiser in September?
What is the average humidity in September in Keiser?
What is the driest month in Keiser?
How many days does it rain in September in Keiser?
When it does not snow in Keiser?
Does it snow in Keiser in September?
What is the average length of the day in September in Keiser?
What time are sunrise and sunset in September in Keiser?
How many hours of sunshine does Keiser have in September?
How high is the UV index in September in Keiser?
Average temperature in September
Keiser, AR
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Keiser, 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 (29.94"Hg).
Average wind speed in September
Keiser, AR
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Keiser, AR
- Average humidity in September: 73%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Keiser, AR
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is February (4.29").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Keiser, AR
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Keiser, AR
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.18").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Keiser, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Keiser, 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 4min
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
Keiser, AR
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
Keiser, 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
Keiser, AR
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in September
Keiser, 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).
Keiser, Arkansas, USA
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