September weather forecast
Mount Pleasant, AR

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Weather in September

September, the first month of the autumn in Mount Pleasant, is still a warm month, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 61.5°F (16.4°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a hot 89.2°F (31.8°C) in August to a warm 82.2°F (27.9°C). September witnesses an average nighttime temperature of 61.5°F (16.4°C).

Heat index

In September, the average heat index is computed to be a hot 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

In Mount Pleasant, snow does not fall in April through October.

Daylight

In Mount Pleasant, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:51 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 5 during September translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

What are the temperatures in September?

During September, Mount Pleasant experiences an average high-temperature of 82.2°F (27.9°C) and a low-temperature of 61.5°F (16.4°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.89" (48mm) of precipitation.

How much does it rain in September?

In Mount Pleasant, in September, it is raining for 12.9 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Mount Pleasant have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:39 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:51 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.4h.

How high is the UV index in September?

In September, the average daily maximum UV index in Mount Pleasant is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe 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
Mount Pleasant, AR

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

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in September: 61.5°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in September
Mount Pleasant, AR

Average pressure in September - Mount Pleasant, AR
  • Average pressure in September: 30.02"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).

Average wind speed in September
Mount Pleasant, AR

Average wind speed in September - Mount Pleasant, AR
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September
Mount Pleasant, AR

Average humidity in September - Mount Pleasant, AR
  • Average humidity in September: 74%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Mount Pleasant, AR

Average rainfall in September - Mount Pleasant, AR
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Mount Pleasant, AR

Average rainfall days in September - Mount Pleasant, AR
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Mount Pleasant, AR

Average snowfall in September - Mount Pleasant, AR
  • Average snowfall in September: 0"

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

Average snowfall days in September
Mount Pleasant, AR

Average snowfall days in September - Mount Pleasant, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Mount Pleasant, AR

Average daylight in September / Average sunshine in September - Mount Pleasant, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Mount Pleasant, AR

Average sunshine days in September - Mount Pleasant, AR
  • Average sunshine days in September: 14 days

The months with the most sunshine days are January and December (19.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Mount Pleasant, AR

Average UV index in September - Mount Pleasant, AR
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Mount Pleasant, AR

Average cloud cover in September - Mount Pleasant, AR
  • Average cloud cover in September: 30

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).

Average visibility in September
Mount Pleasant, AR

Average visibility in September - Mount Pleasant, AR
  • Average visibility in September: 6mi

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

Mount Pleasant, Arkansas, USA

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