August weather forecast
Parker, AZ

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The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape
The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape

Weather in August

August presents a modest cooling trend in Parker, Arizona, despite being situated within the summer season. The temperatures gradually descend, peaking around 103.6°F (39.8°C). The amount of sunshine received decreases slightly, with cloud cover showing marginal increase. Winds get a little slower, while the chances for rain slightly drop. Overall, the weather remains significantly hot but with a slightly lower intensity than July.

Temperature

Parker's shift into August is marked by a subtle change to a fiery hot 103.6°F (39.8°C) from July's 104.2°F (40.1°C) in temperature. The average temperature during August nights dips to a moderately hot 85.6°F (29.8°C).

Humidity

The average relative humidity in August is 25%.

Rainfall

In August, the rain falls for 6 days. Throughout August, 0.55" (14mm) of precipitation is accumulated. In Parker, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.

Daylight

In August, the average length of the day is 13h and 23min.
On the first day of August, sunrise is at 5:48 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:03 pm MST.

Sunshine

In August, the average sunshine is 11.2h.

UV index

The average daily maximum UV index in August in Parker is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 8 in August translates into the following instructions:
Being careless can result in skin and eye damage. Always take the necessary safety measures. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In Parker, 103.6°F (39.8°C) is the average high-temperature and 85.6°F (29.8°C) is the average low-temperature during August.

What is the average humidity in August in Parker?

In Parker, the average relative humidity in August is 25%.

How much does it rain in August?

In Parker, in August, during 6 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How many hours of daylight does Parker have in August?

The average day length in August is 13h and 23min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:48 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:03 pm MST.

How many hours of sunshine does Parker have in August?

The average sunshine duration in August is 11.2h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 8. A UV Index estimate of 8 to 10 represents a very high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Parker, AZ

Average temperature in August - Parker, AZ
  • Average high temperature in August: 103.6°F

The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in August: 85.6°F

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).

Average pressure in August
Parker, AZ

Average pressure in August - Parker, AZ
  • Average pressure in August: 29.79"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).

Average wind speed in August
Parker, AZ

Average wind speed in August - Parker, AZ
  • Average wind speed in August: 7.4mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).

Average humidity in August
Parker, AZ

Average humidity in August - Parker, AZ
  • Average humidity in August: 25%

The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).

Average rainfall in August
Parker, AZ

Average rainfall in August - Parker, AZ
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").

Average rainfall days in August
Parker, AZ

Average rainfall days in August - Parker, AZ
  • Average rainfall days in August: 6 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).

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

Average daylight in August / Average sunshine in August - Parker, AZ
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 11h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in August
Parker, AZ

Average sunshine days in August - Parker, AZ
  • Average sunshine days in August: 20.8 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).

Average UV index in August
Parker, AZ

Average UV index in August - Parker, AZ
  • Average UV index in August: 8

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in August
Parker, AZ

Average cloud cover in August - Parker, AZ
  • Average cloud cover in August: 8

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in August
Parker, AZ

Average visibility in August - Parker, AZ
  • Average visibility in August: 6mi

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

Parker, Arizona, USA

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