August weather forecast
Fort Defiance, AZ

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Weather in August

August, the last month of the summer in Fort Defiance, is also a moderately hot month, with an average temperature ranging between max 79.9°F (26.6°C) and min 60.8°F (16°C).

Temperature

In August, Fort Defiance experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 81.7°F (27.6°C) in July to a still moderately hot 79.9°F (26.6°C). During the nights in August, an average low-temperature of 60.8°F (16°C) is observed.

Humidity

The average relative humidity in August is 41%.

Rainfall

In August, in Fort Defiance, Arizona, the rain falls for 15.3 days. Throughout August, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 91.1 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

In Fort Defiance, Arizona, snow does not fall in June through September.

Daylight

In Fort Defiance, the average length of the day in August is 13h and 28min.
On the first day of the month, sunrise is at 6:24 am and sunset at 8:20 pm. On the last day of August, in Fort Defiance, Arizona, sunrise is at 6:48 am and sunset at 7:44 pm MDT.

Sunshine

In Fort Defiance, the average sunshine in August is 11.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Fort Defiance. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: An average UV index of 6 in August transforms into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are August temperatures in Fort Defiance?

The average high-temperature and low-temperature during August are 79.9°F (26.6°C) and 60.8°F (16°C) respectively. In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 80.6°F (27°C).

What is the average humidity in August in Fort Defiance?

The average relative humidity in August in Fort Defiance is 41%.

How much does it rain in Fort Defiance in August?

In Fort Defiance, Arizona, in August, during 15.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Fort Defiance?

In Fort Defiance, Arizona, snow does not fall in June through September.

How many hours of daylight does Fort Defiance have in August?

The average day length in August in Fort Defiance is 13h and 28min.

When are sunrise and sunset in August in Fort Defiance?

In August, on the first day of the month, sunrise is at 6:24 am and sunset at 8:20 pm. On the last day of the month, in Fort Defiance, sunrise is at 6:48 am and sunset at 7:44 pm MDT.

How many hours of sunshine does Fort Defiance have in August?

The average sunshine duration in August in Fort Defiance is 11.7h.

When is the highest UV index in Fort Defiance?

The months with the highest UV index in Fort Defiance are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in Fort Defiance?

In Fort Defiance, Arizona, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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 August
Fort Defiance, AZ

Average temperature in August - Fort Defiance, AZ
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in August: 60.8°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in August
Fort Defiance, AZ

Average pressure in August - Fort Defiance, AZ
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in August
Fort Defiance, AZ

Average wind speed in August - Fort Defiance, AZ
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in August
Fort Defiance, AZ

Average humidity in August - Fort Defiance, AZ
  • Average humidity in August: 41%

The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (24%).

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Average rainfall in August
Fort Defiance, AZ

Average rainfall in August - Fort Defiance, AZ
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is June (0.39").

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Average rainfall days in August
Fort Defiance, AZ

Average rainfall days in August - Fort Defiance, AZ
  • Average rainfall days in August: 15.3 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (3.1 days).

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Average snowfall in August
Fort Defiance, AZ

Average snowfall in August - Fort Defiance, AZ
  • Average snowfall in August: 0"

The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Fort Defiance, AZ

Average snowfall days in August - Fort Defiance, AZ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Fort Defiance, AZ

Average daylight in August / Average sunshine in August - Fort Defiance, AZ
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 24min).

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Average sunshine days in August
Fort Defiance, AZ

Average sunshine days in August - Fort Defiance, AZ
  • Average sunshine days in August: 11.5 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (8.7 days).

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Average UV index in August
Fort Defiance, AZ

Average UV index in August - Fort Defiance, AZ
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Fort Defiance, AZ

Average cloud cover in August - Fort Defiance, AZ
  • Average cloud cover in August: 16

The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 10).

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Average visibility in August
Fort Defiance, AZ

Average visibility in August - Fort Defiance, AZ
  • Average visibility in August: 6mi

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

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Fort Defiance, Arizona, USA

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