July weather forecast
Casa Grande, AZ

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Weather in July

July continues to uphold the summer heat in Casa Grande, barely retreating from the heat intensity seen in June. This month witnesses a gradual amelioration in weather conditions with a slight increase in rainfall, providing a slight breather from the unforgiving desert heat. The characteristic arid climate exhibits a comparative increment of relative humidity up to 31% from the 16% observed in June. A minor shift is observable as the highest temperature drops slightly to 102°F (38.9°C) from June's 101.8°F (38.8°C). Moving forward, the year enters its second phase, bringing with it a subtle change in weather dynamics.

Temperature

July, with average temperatures reaching a high of 102°F (38.9°C) and a low of 82.6°F (28.1°C), is the warmest month.

Humidity

The average relative humidity in July is 31%.

Rainfall

July is the month with the most rainfall in Casa Grande. Rain falls for 10.7 days and accumulates 1.02" (26mm) of precipitation.

Daylight

In July, the average length of the day is 14h and 4min.
On the first day of the month, sunrise is at 5:22 am and sunset at 7:39 pm. On the last day of July, in Casa Grande, sunrise is at 5:40 am and sunset at 7:26 pm MST.

Sunshine

In July, the average sunshine is 11.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In July, a daily maximum UV index of 8 leads to the following instructions:
Be proactive in protecting yourself; skin and eyes can be harmed if left unprotected. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What are the warmest months in Casa Grande?

July is the warmest month in Casa Grande, Arizona, with the temperature often reaching an average high of 102°F (38.9°C) and an average low of 82.6°F (28.1°C).

How hot is it in Casa Grande in July?

The high-temperature, in July, in Casa Grande, records 102°F (38.9°C), while the low-temperature is 82.6°F (28.1°C).

What is the average humidity in July in Casa Grande?

In Casa Grande, Arizona, the average relative humidity in July is 31%.

What is the rainiest month in Casa Grande?

July is the month with the most rainfall. Rain falls for 10.7 days and accumulates 1.02" (26mm) of precipitation.

How much does it rain in Casa Grande in July?

In Casa Grande, Arizona, in July, it is raining for 10.7 days, with typically 1.02" (26mm) of accumulated precipitation.

How many hours of daylight does Casa Grande have in July?

The average day length in July in Casa Grande is 14h and 4min.

When is the sunrise / sunset in July in Casa Grande?

On the first day of July in Casa Grande, sunrise is at 5:22 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:26 pm MST.

How many hours of sunshine does Casa Grande have in July?

In July, the average sunshine duration is 11.9h.

When is the highest UV index in Casa Grande?

June through August, with an average maximum UV index of 8, are months with the highest UV index.

What is the UV index reading in July in Casa Grande?

The average daily maximum UV index in July in Casa Grande is 8. A UV Index reading of 8 to 10 represents a very high health risk 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 July
Casa Grande, AZ

Average temperature in July - Casa Grande, AZ
  • Average high temperature in July: 102°F

The warmest month (with the highest average high temperature) is July (102°F).
The month with the lowest average high temperature is December (62.6°F).

  • Average low temperature in July: 82.6°F

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

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Average pressure in July
Casa Grande, AZ

Average pressure in July - Casa Grande, AZ
  • Average pressure in July: 29.87"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

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Average wind speed in July
Casa Grande, AZ

Average wind speed in July - Casa Grande, AZ
  • Average wind speed in July: 6.2mph

The windiest months (with the highest average wind speed) are April and May (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.9mph).

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Average humidity in July
Casa Grande, AZ

Average humidity in July - Casa Grande, AZ
  • Average humidity in July: 31%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (16%).

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Average rainfall in July
Casa Grande, AZ

Average rainfall in July - Casa Grande, AZ
  • Average rainfall in July: 1.02"

The wettest month (with the highest rainfall) is July (1.02").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in July
Casa Grande, AZ

Average rainfall days in July - Casa Grande, AZ
  • Average rainfall days in July: 10.7 days

The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is June (1.8 days).

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Average daylight in July /
Average sunshine in July
Casa Grande, AZ

Average daylight in July / Average sunshine in July - Casa Grande, AZ
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 11h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days in July
Casa Grande, AZ

Average sunshine days in July - Casa Grande, AZ
  • Average sunshine days in July: 15.4 days

The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (15.4 days).

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Average UV index in July
Casa Grande, AZ

Average UV index in July - Casa Grande, AZ
  • Average UV index in July: 8

The months with the highest UV index are 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
Casa Grande, AZ

Average cloud cover in July - Casa Grande, AZ
  • Average cloud cover in July: 16

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).

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Average visibility in July
Casa Grande, AZ

Average visibility in July - Casa Grande, AZ
  • Average visibility in July: 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).

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Casa Grande, Arizona, USA

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