August weather forecast and climate
Duncan, AZ

Weather in August

The last month of the summer, August, is another hot month in Duncan, Arizona, with average temperature fluctuating between 89.2°F (31.8°C) and 68.2°F (20.1°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still tropical 89.2°F (31.8°C). The average low-temperature, in Duncan, is 68.2°F (20.1°C).

Heat index

The average heat index is estimated at a hot 90.1°F (32.3°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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', 'felt air temperature', 'feels like', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, differences in body mass, height, and shape, metabolic differences, and clothing 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Duncan, the average relative humidity is 42%.

Rainfall

In Duncan, during August, the rain falls for 16.8 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, in Duncan, there are 92.3 rainfall days, and 12.13" (308mm) of precipitation is accumulated.

Snowfall

In Duncan, Arizona, snow does not fall in April through November.

Daylight

In Duncan, Arizona, the average length of the day is 13.3h.

Sunshine

June and August, with an average of 12.1h of sunshine, are months with the most sunshine in Duncan, Arizona.

UV index

In Duncan, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 August in Duncan?

In August, in Duncan, the average high-temperature is 89.2°F (31.8°C), and the average low-temperature is 68.2°F (20.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), that calculates temperature value influenced by the moisture in the air, is estimated at 90.1°F (32.3°C).

What is the average humidity in August in Duncan?

In Duncan, Arizona, the average relative humidity in August is 42%.

How many days does it rain in August in Duncan?

In August, in Duncan, Arizona, the rain falls for 16.8 days. Throughout August, 2.2" (56mm) of precipitation is accumulated.

When it does not snow in Duncan?

April through November are months without snowfall in Duncan, Arizona.

How many hours of daylight does Duncan have in August?

The average length of the day in August in Duncan is 13.3h.

What are the months with the most sunshine in Duncan?

June and August, with an average of 12.1h of sunshine, are months with the most sunshine in Duncan, Arizona.

How many hours of sunshine does Duncan have in August?

In August, the average sunshine in Duncan is 12.1h.

What is the UV index reading in August in Duncan?

In August, the average daily maximum UV index in Duncan, Arizona, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.

Average temperature in August
Duncan, AZ

Average temperature in August - Duncan, AZ
  • Average high temperature in August: 89.2°F

The warmest month (with the highest average high temperature) is June (91°F).
The month with the lowest average high temperature is December (52.7°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in August
Duncan, AZ

Average pressure in August - Duncan, AZ
  • Average pressure in August: 29.96"

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in August
Duncan, AZ

Average wind speed in August - Duncan, AZ
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.1mph).

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Average humidity in August
Duncan, AZ

Average humidity in August - Duncan, AZ
  • Average humidity in August: 42%

The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is June (22%).

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Average rainfall in August
Duncan, AZ

Average rainfall in August - Duncan, AZ
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is April (0.2").

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Average rainfall days in August
Duncan, AZ

Average rainfall days in August - Duncan, AZ
  • Average rainfall days in August: 16.8 days

Months with the highest number of rainy days are July and August (16.8 days).
The month with the least rainy days is May (3.5 days).

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Average snowfall in August
Duncan, AZ

Average snowfall in August - Duncan, AZ
  • Average snowfall in August: 0"

The month with the highest snowfall is December (0.87").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Duncan, AZ

Average snowfall days in August - Duncan, AZ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (0.9 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in August /
Average sunshine in August
Duncan, AZ

Average daylight in August / Average sunshine in August - Duncan, AZ
  • Average daylight in August: 13.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in August: 12.1h

Months with the most sunshine are June and August (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in August
Duncan, AZ

Average sunshine days in August - Duncan, AZ
  • Average sunshine days in August: 8.3 days

The month with the most sunshine days is May (26.4 days).
The month with the least sunshine days is August (8.3 days).

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Average UV index in August
Duncan, AZ

Average UV index in August - Duncan, AZ
  • Average UV index in August: 6

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 August
Duncan, AZ

Average cloud cover in August - Duncan, AZ
  • Average cloud cover in August: 17

The month with the most cloud cover is December (Cloud cover 22).
Months with the least cloud cover are May and June (Cloud cover 9).

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Average visibility in August
Duncan, AZ

Average visibility in August - Duncan, AZ
  • Average visibility in August: 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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