July weather forecastPoston, AZ
July
Weather in July
July is a blisteringly hot summer month in Poston, Arizona, with an average temperature ranging between max 104.2°F (40.1°C) and min 84.4°F (29.1°C).Temperature
In Poston, July is the warmest month, with temperatures averaging a high of 104.2°F (40.1°C) and a low of 84.4°F (29.1°C).Humidity
The average relative humidity in July in Poston is 24%.Rainfall
The month with the most rainfall is July, when the rain falls for 7.8 days and typically aggregates up to 0.59" (15mm) of precipitation.Daylight
In July, the average length of the day is 14h and 10min.On the first day of the month, sunrise is at 5:30 am and sunset at 7:52 pm. On the last day of July, sunrise is at 5:48 am and sunset at 7:38 pm MST.
Sunshine
In July, the average sunshine is 12h.UV index
With an average maximum UV index of 9, July is the month with the highest UV index. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 9 in July translates into this advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Regardless of cloud cover, it's recommended to apply generously and reapply often a sunscreen with an SPF of at least 30, especially after swimming or any outdoor activity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Poston, AZ
- Average high temperature in July: 104.2°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 July: 84.4°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 July
Poston, AZ
- Average pressure in July: 29.8"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 July
Poston, AZ
- Average wind speed in July: 7.8mph
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 July
Poston, AZ
- Average humidity in July: 24%
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 July
Poston, AZ
- Average rainfall in July: 0.59"
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 July
Poston, 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 May (1.2 days).
Average daylight in July /
Average sunshine in July
Poston, AZ
- Average daylight in July: 14h and 12min
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 July: 12h and 0min
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 July
Poston, AZ
- Average sunshine days in July: 20.2 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 July
Poston, AZ
- Average UV index in July: 9
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 July
Poston, AZ
- Average cloud cover in July: 11
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 July
Poston, 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).





