September weather forecast
Diamond City, AR

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Weather in September

September, the first month of the autumn in Diamond City, is also a moderately hot month, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 59.7°F (15.4°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's tropical 88.9°F (31.6°C) to a warm 81.7°F (27.6°C). During September, Diamond City notes a substantial drop from the daytime peak to an average minimum temperature of 59.7°F (15.4°C).

Heat index

During September, the heat index is calculated to be a tropical 86°F (30°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

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

Rainfall

In Diamond City, in September, it is raining for 11.8 days, with typically 1.89" (48mm) of accumulated precipitation. In Diamond City, during the entire year, the rain falls for 142.8 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

May through October are months without snowfall in Diamond City.

Daylight

The average length of the day in September in Diamond City is 12h and 24min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:56 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In Diamond City, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What is the temperature in September in Diamond City?

In September, the average high-temperature and low-temperature in Diamond City, Arkansas, are 81.7°F (27.6°C) and 59.7°F (15.4°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 86°F (30°C).

What is the average humidity in September in Diamond City?

The average relative humidity in September is 74%.

How many days does it rain in September in Diamond City?

In Diamond City, in September, it is raining for 11.8 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow in Diamond City?

In Diamond City, Arkansas, snow does not fall in May through October.

What is the average length of the day in September in Diamond City?

In Diamond City, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Diamond City?

On the first day of September in Diamond City, Arkansas, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:56 pm CDT.

How many hours of sunshine does Diamond City have in September?

In September, the average sunshine duration is 9.4h.

What is the UV index intensity in September in Diamond City?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Diamond City, AR

Average temperature in September - Diamond City, AR
  • Average high temperature in September: 81.7°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 (44.1°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in September
Diamond City, AR

Average pressure in September - Diamond City, 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).

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Average wind speed in September
Diamond City, AR

Average wind speed in September - Diamond City, AR
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January, February, March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

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Average humidity in September
Diamond City, AR

Average humidity in September - Diamond City, AR
  • Average humidity in September: 74%

The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).

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Average rainfall in September
Diamond City, AR

Average rainfall in September - Diamond City, AR
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.42").

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Average rainfall days in September
Diamond City, AR

Average rainfall days in September - Diamond City, AR
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in September
Diamond City, AR

Average snowfall in September - Diamond City, AR
  • Average snowfall in September: 0"

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

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Average snowfall days in September
Diamond City, AR

Average snowfall days in September - Diamond City, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Diamond City, AR

Average daylight in September / Average sunshine in September - Diamond City, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).

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Average sunshine days in September
Diamond City, AR

Average sunshine days in September - Diamond City, AR
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (12.2 days).

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Average UV index in September
Diamond City, AR

Average UV index in September - Diamond City, 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).

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Average cloud cover in September
Diamond City, AR

Average cloud cover in September - Diamond City, AR
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 28).

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Average visibility in September
Diamond City, AR

Average visibility in September - Diamond City, 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).

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Diamond City, Arkansas, USA

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