September weather forecast and climate
Dover, AR

Weather in September

The first month of the autumn, September, is still a warm month in Dover, Arkansas, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 83.7°F (28.7°C).

Temperature

In Dover, the average high-temperature marginally drops, from a hot 90.5°F (32.5°C) in August, to a warm 83.7°F (28.7°C). In Dover, Arkansas, the average low-temperature is 61.7°F (16.5°C).

Heat index

In September, the average heat index is evaluated at a tropical 91°F (32.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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', 'feels like', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like wind, metabolic differences, pregnancy, 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 particularly important for children. 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

In September, the average relative humidity is 74%.

Rainfall

In Dover, Arkansas, it is raining for 13.3 days, with typically 2.4" (61mm) of accumulated precipitation. In Dover, during the entire year, the rain falls for 156 days and collects up to 37.56" (954mm) of precipitation.

Snowfall

April through November are months without snowfall in Dover.

Daylight

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

Sunshine

In September, the average sunshine is 9.4h.

UV index

In Dover, Arkansas, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Dover?

In Dover, in September, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 61.7°F (16.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines both air temperature and relative humidity, in September is calculated to 91°F (32.8°C).

What is the average humidity in September in Dover?

The average relative humidity in September is 74%.

How many days does it rain in September in Dover?

In Dover, Arkansas, in September, it is raining for 13.3 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow in Dover?

In Dover snow does not fall in April through November.

How many hours of daylight does Dover have in September?

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

How many hours of sunshine does Dover have in September?

The average sunshine in September in Dover, Arkansas, is 9.4h.

How high is the UV index in September in Dover?

In Dover, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Dover, AR

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

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in September
Dover, AR

Average pressure in September - Dover, 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
Dover, AR

Average wind speed in September - Dover, AR
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in September
Dover, AR

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

Months with the highest relative humidity are March and May (79%).
Months with the lowest relative humidity are July, August and October (73%).

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Average rainfall in September
Dover, AR

Average rainfall in September - Dover, AR
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is January (2.32").

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Average rainfall days in September
Dover, AR

Average rainfall days in September - Dover, AR
  • Average rainfall days in September: 13.3 days

Months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in September
Dover, AR

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

The month with the highest snowfall is February (0.83").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Dover, AR

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

The month with the highest number of snowfall days is February (1.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Dover, 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: 9.4h

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January and February (Average sunshine: 5.4).

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Average sunshine days in September
Dover, AR

Average sunshine days in September - Dover, AR
  • Average sunshine days in September: 15 days

The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in September
Dover, AR

Average UV index in September - Dover, AR
  • Average UV index in September: 6

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

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Average cloud cover in September
Dover, AR

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

Months with the most cloud cover are February and March (Cloud cover 45).
Months with the least cloud cover are June, July and August (Cloud cover 27).

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Average visibility in September
Dover, AR

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

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

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