September weather forecast and climate
Marmaduke, AR

Weather in September

September, the first month of the autumn, in Marmaduke, is also a moderately hot month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 81.9°F (27.7°C).

Temperature

In Marmaduke, Arkansas, the average high-temperature in September is relatively the same as in August - a moderately hot 81.9°F (27.7°C). The average low-temperature, in September, is 63.9°F (17.7°C).

Heat index

In September, the average heat index is calculated to a hot 86.9°F (30.5°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
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', 'felt air temperature', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, clothing, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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

The average relative humidity in Marmaduke is 73%.

Rainfall

Months with the least rainfall in Marmaduke, Arkansas, are September and December Rain falls for 7 days and accumulates 0.47" (12mm) of rain.

Snowfall

April through October are months without snowfall.

Daylight

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

Sunshine

In Marmaduke, Arkansas, the average sunshine is 9.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Marmaduke?

The average high-temperature, in September, in Marmaduke, Arkansas, is 81.9°F (27.7°C), while the average low-temperature is 63.9°F (17.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in September is calculated to 86.9°F (30.5°C).

What is the average humidity in September in Marmaduke?

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

How many days does it rain in September in Marmaduke?

In Marmaduke, during September, the rain falls for 7 days and regularly aggregates up to 0.47" (12mm) of precipitation.

What is the driest month in Marmaduke?

Months with the least rainfall in Marmaduke are September and December Rain falls for 7 days and accumulates 0.47" (12mm) of rain.

When it does not snow in Marmaduke?

In Marmaduke snow does not fall in April through October.

How many hours of daylight does Marmaduke have in September?

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

How many hours of sunshine does Marmaduke have in September?

In Marmaduke, Arkansas, the average sunshine in September is 9.6h.

How high is the UV index in September in Marmaduke?

In Marmaduke, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Marmaduke, AR

Average temperature in September - Marmaduke, AR
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in September: 63.9°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Marmaduke, AR

Average pressure in September - Marmaduke, 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 (29.93").

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Average wind speed in September
Marmaduke, AR

Average wind speed in September - Marmaduke, AR
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in September
Marmaduke, AR

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

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Marmaduke, AR

Average rainfall in September - Marmaduke, AR
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is May (0.94").
The driest months (with the least rainfall) are September and December (0.47").

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Average rainfall days in September
Marmaduke, AR

Average rainfall days in September - Marmaduke, AR
  • Average rainfall days in September: 7 days

The month with the highest number of rainy days is July (10.4 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in September
Marmaduke, AR

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

Months with the highest snowfall are March and December (0.12").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Marmaduke, AR

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

The month with the highest number of snowfall days is February (1.3 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
Marmaduke, AR

Average daylight in September / Average sunshine in September - Marmaduke, AR
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.6h

The month with the most sunshine is June (Average sunshine: 10.9h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in September
Marmaduke, AR

Average sunshine days in September - Marmaduke, AR
  • Average sunshine days in September: 21 days

The month with the most sunshine days is December (24.6 days).
Months with the least sunshine days are May and August (17.6 days).

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Average UV index in September
Marmaduke, AR

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

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

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Average cloud cover in September
Marmaduke, AR

Average cloud cover in September - Marmaduke, AR
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).

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Average visibility in September
Marmaduke, AR

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

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

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