September weather forecast
Cotter, AR

Share

Weather in September

September, the first month of the autumn in Cotter, is also a moderately hot month, with an average temperature varying between 60.4°F (15.8°C) and 82.4°F (28°C).

Temperature

Cotter observes a small decrease in the average high-temperature with the arrival of September, falling from August's tropical 89.8°F (32.1°C) to a warm 82.4°F (28°C). September nights in Cotter report a substantial dip from daytime highs to an average of 60.4°F (15.8°C).

Heat index

The heat index in September is evaluated at a hot 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

The average relative humidity in September in Cotter is 74%.

Rainfall

The month with the least rainfall in Cotter, Arkansas, is September, when the rain falls for 12.5 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

In Cotter, snow does not fall in April through October.

Daylight

In September, the average length of the day in Cotter is 12h and 24min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:54 pm CDT.

Sunshine

In Cotter, Arkansas, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September in Cotter is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
[Resources]

Frequently asked questions

How hot does it get in Cotter in September?

In Cotter, in September, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 60.4°F (15.8°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Cotter?

The average relative humidity in September in Cotter is 74%.

What is the driest month in Cotter?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in Cotter in September?

In Cotter, during September, the rain falls for 12.5 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Cotter?

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

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

In Cotter, Arkansas, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Cotter?

On the first day of September, sunrise is at 6:42 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:54 pm CDT.

How long on average sun shines in September in Cotter?

In September, the average sunshine duration in Cotter, Arkansas, is 9.2h.

What is the UV index intensity in September in Cotter?

In Cotter, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
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
Cotter, AR

Average temperature in September - Cotter, AR
  • Average high temperature in September: 82.4°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 (44.2°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

[Resources]

Average pressure in September
Cotter, AR

Average pressure in September - Cotter, 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).

[Resources]

Average wind speed in September
Cotter, AR

Average wind speed in September - Cotter, AR
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are February, March and April (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

[Resources]

Average humidity in September
Cotter, AR

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

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are August and October (73%).

[Resources]

Average rainfall in September
Cotter, AR

Average rainfall in September - Cotter, AR
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is September (2.01").

[Resources]

Average rainfall days in September
Cotter, AR

Average rainfall days in September - Cotter, AR
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (8.4 days).

[Resources]

Average snowfall in September
Cotter, AR

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

The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Cotter, AR

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

The month with the highest number of snowfall days is February (3.8 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
Cotter, AR

Average daylight in September / Average sunshine in September - Cotter, 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 42min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

[Resources]

Average sunshine days in September
Cotter, AR

Average sunshine days in September - Cotter, AR
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is July (11.9 days).

[Resources]

Average UV index in September
Cotter, AR

Average UV index in September - Cotter, 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).

[Resources]

Average cloud cover in September
Cotter, AR

Average cloud cover in September - Cotter, AR
  • Average cloud cover in September: 32

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 28).

[Resources]

Average visibility in September
Cotter, AR

Average visibility in September - Cotter, AR
  • Average visibility in September: 5mi

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

[Resources]

Cotter, Arkansas, USA

Weather forecast for your location

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