July weather forecast
Phoenix, AZ

The city of Phoenix, Arizona at dusk
The city of Phoenix, Arizona at dusk

Weather in July

July, like June, in Phoenix, Arizona, is a very hot summer month, with average temperature fluctuating between 103.6°F (39.8°C) and 84°F (28.9°C).

Temperature

July is the warmest month, with an average high-temperature of 103.6°F (39.8°C) and an average low-temperature of 84°F (28.9°C).

Humidity

The average relative humidity is 29%.

Rainfall

July is the month with the most rainfall. Rain falls for 7.8 days and accumulates 0.75" (19mm) of precipitation.

Snowfall

January through August, October through December are months without snowfall.

Daylight

The average length of the day in July is 14.1h.

Sunshine

In Phoenix, the average sunshine is 12h.

UV index

Months with the highest UV index in Phoenix are May through August, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 8 transform into the following instructions:
Take extra precautions. Protection against sun damage is required. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Phoenix?

The warmest month in Phoenix, Arizona, is July, with an average high-temperature of 103.6°F (39.8°C) and an average low-temperature of 84°F (28.9°C).

What is the average humidity in July in Phoenix?

The average relative humidity in July in Phoenix is 29%.

What is the wettest month in Phoenix?

July is the month with the most rainfall in Phoenix, Arizona. Rain falls for 7.8 days and accumulates 0.75" (19mm) of precipitation.

How much does it rain in Phoenix in July?

In July, in Phoenix, the rain falls for 7.8 days. Throughout July, 0.75" (19mm) of precipitation is accumulated.

When it does not snow in Phoenix?

January through August, October through December are months without snowfall in Phoenix.

What is the average length of the day in July in Phoenix?

In July, the average length of the day in Phoenix is 14.1h.

How many hours of sunshine does Phoenix have in July?

The average sunshine in July is 12h.

When is the highest UV index in Phoenix?

May through August, with an average maximum UV index of 8, are months with the highest UV index in Phoenix, Arizona.

What is the UV index reading in July in Phoenix?

In Phoenix, Arizona, the average daily maximum UV index in July is 8. A UV Index reading of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays.

Average temperature in July
Phoenix, AZ

Average temperature in July - Phoenix, AZ
  • Average high temperature in July: 39.8°C

The warmest month (with the highest average high temperature) is July (39.8°C).
The month with the lowest average high temperature is December (17.2°C).

  • Average low temperature in July: 28.9°C

The month with the highest average low temperature is August (29.3°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).

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Average pressure in July
Phoenix, AZ

Average pressure in July - Phoenix, AZ
  • Average pressure in July: 1011.5mbar

The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is June (1009.5mbar).

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Average wind speed in July
Phoenix, AZ

Average wind speed in July - Phoenix, AZ
  • Average wind speed in July: 9.6km/h

The windiest month (with the highest average wind speed) is April (10.3km/h).
The calmest month (with the lowest average wind speed) is December (7km/h).

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Average humidity in July
Phoenix, AZ

Average humidity in July - Phoenix, AZ
  • Average humidity in July: 29%

The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (16%).

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Average rainfall in July
Phoenix, AZ

Average rainfall in July - Phoenix, AZ
  • Average rainfall in July: 19mm

The wettest month (with the highest rainfall) is July (19mm).
The driest months (with the least rainfall) are May and June (2mm).

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Average rainfall days in July
Phoenix, AZ

Average rainfall days in July - Phoenix, AZ
  • Average rainfall days in July: 7.8 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (0.8 days).

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Average snowfall in July
Phoenix, AZ

Average snowfall in July - Phoenix, AZ
  • Average snowfall in July: 0mm

The month with the highest snowfall is September (1mm).
Months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

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Average snowfall days in July
Phoenix, AZ

Average snowfall days in July - Phoenix, AZ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is September (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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Average daylight in July /
Average sunshine in July
Phoenix, AZ

Average daylight in July / Average sunshine in July - Phoenix, AZ
  • Average daylight in July: 14.1h

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 July: 12h

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

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Average sunshine days in July
Phoenix, AZ

Average sunshine days in July - Phoenix, AZ
  • Average sunshine days in July: 21.1 days

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (21.1 days).

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Average UV index in July
Phoenix, AZ

Average UV index in July - Phoenix, AZ
  • Average UV index in July: 8

Months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in July
Phoenix, AZ

Average cloud cover in July - Phoenix, AZ
  • Average cloud cover in July: 15

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in July
Phoenix, AZ

Average visibility in July - Phoenix, AZ
  • Average visibility in July: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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