September weather forecast and climate
Joiner, AR

Weather in September

The first month of the autumn, September, is also a moderately hot month in Joiner, Arkansas, with average temperature ranging between max 82.9°F (28.3°C) and min 64.2°F (17.9°C).

Temperature

In Joiner, the average high-temperature is practically the same as in August - a warm 82.9°F (28.3°C). In September, the average low-temperature is 64.2°F (17.9°C).

Heat index

In September, the average heat index is appraised at a hot 89.1°F (31.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, pregnancy, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly 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 Joiner, the average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 2.05" (52mm) of precipitation.

Snowfall

April through September are months without snowfall in Joiner.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine is 9.7h.

UV index

The average daily maximum UV index in Joiner, Arkansas, is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Joiner?

The average high-temperature, in September, in Joiner, Arkansas, is 82.9°F (28.3°C), while the average low-temperature is 64.2°F (17.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in September is evaluated at 89.1°F (31.7°C).

What is the average humidity in September in Joiner?

In Joiner, the average relative humidity in September is 73%.

How many days does it rain in September in Joiner?

In Joiner, in September, during 12.2 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

What is the driest month in Joiner?

September is the month with the least rainfall in Joiner. Rain falls for 12.2 days and accumulates 2.05" (52mm) of precipitation.

Does it snow in Joiner in September?

In Joiner, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Joiner?

In Joiner snow does not fall in April through September.

How many hours of daylight does Joiner have in September?

In September, the average length of the day in Joiner is 12.4h.

How many hours of sunshine does Joiner have in September?

In September, the average sunshine in Joiner is 9.7h.

What is the UV index reading in September in Joiner?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Joiner, AR

Average temperature in September - Joiner, AR
  • Average high temperature in September: 82.9°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 (46.2°F).

  • Average low temperature in September: 64.2°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 (33.1°F).

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Average pressure in September
Joiner, AR

Average pressure in September - Joiner, AR
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in September
Joiner, AR

Average wind speed in September - Joiner, AR
  • Average wind speed in September: 6.1mph

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).

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Average humidity in September
Joiner, AR

Average humidity in September - Joiner, AR
  • Average humidity in September: 73%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Joiner, AR

Average rainfall in September - Joiner, AR
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in September
Joiner, AR

Average rainfall days in September - Joiner, AR
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (16.4 days).
Months with the least rainy days are October and November (9.5 days).

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Average snowfall in September
Joiner, AR

Average snowfall in September - Joiner, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.3").
Months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in September
Joiner, AR

Average snowfall days in September - Joiner, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.9 days).
Months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Joiner, AR

Average daylight in September / Average sunshine in September - Joiner, AR
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 9.7h

The month with the most sunshine is June (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in September
Joiner, AR

Average sunshine days in September - Joiner, AR
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in September
Joiner, AR

Average UV index in September - Joiner, AR
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Joiner, AR

Average cloud cover in September - Joiner, AR
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in September
Joiner, AR

Average visibility in September - Joiner, AR
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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