September weather forecast
Smithville, AR

Share

Weather in September

The first month of the autumn, September, is still a warm month in Smithville, Arkansas, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 82.2°F (27.9°C).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's tropical 88.7°F (31.5°C) to a moderately hot 82.2°F (27.9°C). Smithville usually reports an average low-temperature of 62.4°F (16.9°C) during the month of September.

Heat index

September's average heat index is calculated to be a hot 87.8°F (31°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In September, the average relative humidity in Smithville is 74%.

Rainfall

The month with the least rainfall in Smithville is September, when the rain falls for 11.9 days and typically collects 1.81" (46mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:32 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:49 pm CDT.

Sunshine

In Smithville, the average sunshine in September is 9.5h.

UV index

In Smithville, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To cut down UV radiation exposure by about half, sport a wide-brim hat.
[Resources]

Frequently asked questions

What is the usual temperature for Smithville in September?

The high-temperature in Smithville during September is 82.2°F (27.9°C) and the low-temperature is 62.4°F (16.9°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in September in Smithville?

In September, the average relative humidity in Smithville is 74%.

What is the driest month in Smithville?

September is the month with the least rainfall in Smithville, Arkansas. Rain falls for 11.9 days and accumulates 1.81" (46mm) of precipitation.

How many days does it rain in September in Smithville?

In September, the rain falls for 11.9 days. Throughout September, 1.81" (46mm) of precipitation is accumulated.

When it does not snow in Smithville?

In Smithville, Arkansas, snow does not fall in April through October.

What is the average length of the day in September in Smithville?

The average day length in September in Smithville is 12h and 23min.

When are sunrise and sunset in September in Smithville?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:32 pm. On the last day of the month, in Smithville, Arkansas, sunrise is at 7:00 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Smithville have in September?

In September, the average sunshine duration in Smithville is 9.5h.

What is the UV index reading in September in Smithville?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Smithville, AR

Average temperature in September - Smithville, AR
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

[Resources]

Average pressure in September
Smithville, AR

Average pressure in September - Smithville, 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 (29.93"Hg).

[Resources]

Average wind speed in September
Smithville, AR

Average wind speed in September - Smithville, AR
  • Average wind speed in September: 5.4mph

The windiest months (with the highest average wind speed) are January, February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

[Resources]

Average humidity in September
Smithville, AR

Average humidity in September - Smithville, AR
  • Average humidity in September: 74%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

[Resources]

Average rainfall in September
Smithville, AR

Average rainfall in September - Smithville, AR
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.81").

[Resources]

Average rainfall days in September
Smithville, AR

Average rainfall days in September - Smithville, AR
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is December (8.6 days).

[Resources]

Average snowfall in September
Smithville, AR

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

The month with the highest snowfall is March (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Smithville, AR

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

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Smithville, 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 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

[Resources]

Average sunshine days in September
Smithville, AR

Average sunshine days in September - Smithville, AR
  • Average sunshine days in September: 16 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (13.3 days).

[Resources]

Average UV index in September
Smithville, AR

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

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

[Resources]

Average cloud cover in September
Smithville, AR

Average cloud cover in September - Smithville, AR
  • Average cloud cover in September: 29

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).

[Resources]

Average visibility in September
Smithville, AR

Average visibility in September - Smithville, 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).

[Resources]

Smithville, Arkansas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location