September weather forecast and climate
Sims, AR

Weather in September

September, the first month of the autumn, in Sims, is also a moderately hot month, with average temperature varying between 83.7°F (28.7°C) and 63°F (17.2°C).

Temperature

In Sims, the average high-temperature slightly decreases, from a hot 90.1°F (32.3°C) in August, to a moderately hot 83.7°F (28.7°C). In September, in Sims, the average low-temperature is 63°F (17.2°C).

Heat index

In September, the average heat index is estimated at a hot 90.7°F (32.6°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. 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', 'real feel', 'felt air temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, wind, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

July through October, with an average relative humidity of 73%, are the least humid months in Sims.

Rainfall

In Sims, Arkansas, during September, the rain falls for 13.2 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Sims, Arkansas, during the entire year, the rain falls for 160.2 days and collects up to 38.86" (987mm) of precipitation.

Snowfall

April through October are months without snowfall in Sims.

Daylight

In Sims, the average length of the day is 12.4h.

Sunshine

In Sims, the average sunshine is 9.2h.

UV index

In Sims, Arkansas, 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 the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in September in Sims?

In Sims, Arkansas, in September, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 63°F (17.2°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, is evaluated at 90.7°F (32.6°C).

What is the least humid month in Sims?

Months with the lowest humidity in Sims, Arkansas, are July through October, with an average relative humidity of 73%.

What is the average humidity in September in Sims?

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

How much does it rain in Sims in September?

In Sims, Arkansas, in September, it is raining for 13.2 days, with typically 2.72" (69mm) of accumulated precipitation.

When it does not snow in Sims?

April through October are months without snowfall in Sims.

How many hours of daylight does Sims have in September?

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

How long on average sun shines in September in Sims?

The average sunshine in September in Sims is 9.2h.

What is the UV index reading in September in Sims?

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

Average temperature in September
Sims, AR

Average temperature in September - Sims, AR
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

[Resources]

Average pressure in September
Sims, AR

Average pressure in September - Sims, AR
  • Average pressure in September: 30"

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

[Resources]

Average wind speed in September
Sims, AR

Average wind speed in September - Sims, AR
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

[Resources]

Average humidity in September
Sims, AR

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

The month with the highest relative humidity is March (80%).
Months with the lowest relative humidity are July, August, September and October (73%).

[Resources]

Average rainfall in September
Sims, AR

Average rainfall in September - Sims, AR
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is May (4.76").
The driest month (with the least rainfall) is January (2.32").

[Resources]

Average rainfall days in September
Sims, AR

Average rainfall days in September - Sims, AR
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is January (9.6 days).

[Resources]

Average snowfall in September
Sims, AR

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

The month with the highest snowfall is February (1.46").
Months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Sims, AR

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

The month with the highest number of snowfall days is February (2 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Sims, 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: 9.9h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is July (Average sunshine: 10.2h).
Months with the least sunshine are February and December (Average sunshine: 5.1).

[Resources]

Average sunshine days in September
Sims, AR

Average sunshine days in September - Sims, AR
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is January (19 days).
The month with the least sunshine days is August (10.5 days).

[Resources]

Average UV index in September
Sims, AR

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

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

[Resources]

Average cloud cover in September
Sims, AR

Average cloud cover in September - Sims, AR
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June, July, August and September (Cloud cover 30).

[Resources]

Average visibility in September
Sims, AR

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

Months with the highest visibility are April, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January, February, March, May and December (5mi).

[Resources]