July weather forecastCasa Grande, AZ
July
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 is the month when Casa Grande's temperatures reach their peak, with averages of 102°F (38.9°C) and lows of 82.6°F (28.1°C).Humidity
The average relative humidity in July in Casa Grande 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, sunrise is at 5:40 am and sunset at 7:26 pm MST.
Sunshine
In July, the average sunshine is 11.9h.UV index
June through August, with an average maximum UV index of 8, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 8 in July leads to these guidelines:
Emphasize protection. Neglecting it can lead to swift damage to the skin and eyes. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
Average daylight in July /
Average sunshine in July
Casa Grande, AZ
- Average daylight in July: 14h and 6min
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 54min
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).
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).
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).
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).
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).





