July weather forecastSierra Vista, AZ
July
Weather in July
July perpetuates the trend of high temperatures in Sierra Vista, although with an interesting twist. While the city remains hot during the day, rainfall frequency significantly ramps up. Hitting an average rainfall of 4.53" (115mm), a stark contrast to previous months, July is considered the wettest month of the year. This sudden surge in downpours provides opportunities for witnessing magnificent desert showers and rainbows, a unique experience for visitors to the city.Temperature
July's climate shows a minor adjustment in average high-temperatures to a still tropical 86.5°F (30.3°C) from June's 90.1°F (32.3°C). Sierra Vista observes an average low-temperature of 69.6°F (20.9°C) during July nights.Heat index
During July, the heat index is estimated at a tropical 87.8°F (31°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In July, the average relative humidity is 47%.Rainfall
July is the month with the most rainfall. Rain falls for 21.3 days and accumulates 4.53" (115mm) of precipitation.Snowfall
April through November are months without snowfall in Sierra Vista.Daylight
In July, the average length of the day is 13h and 58min.On the first day of the month, sunrise is at 5:20 am and sunset at 7:30 pm. On the last day of July, sunrise is at 5:37 am and sunset at 7:17 pm MST.
Sunshine
In Sierra Vista, Arizona, the average sunshine in July is 11.7h.UV index
The average daily maximum UV index in July in Sierra Vista is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 in July translates into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Sierra Vista, AZ
- Average high temperature in July: 86.5°F
The warmest month (with the highest average high temperature) is June (90.1°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in July: 69.6°F
The month with the highest average low temperature is July (69.6°F).
The coldest months (with the lowest average low temperature) are January and December (37.8°F).
Average pressure in July
Sierra Vista, AZ
- Average pressure in July: 29.9"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in July
Sierra Vista, AZ
- Average wind speed in July: 6.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in July
Sierra Vista, AZ
- Average humidity in July: 47%
The month with the highest relative humidity is September (50%).
The months with the lowest relative humidity are May and June (23%).
Average rainfall in July
Sierra Vista, AZ
- Average rainfall in July: 4.53"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in July
Sierra Vista, AZ
- Average rainfall days in July: 21.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (2.3 days).
Average snowfall in July
Sierra Vista, AZ
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Sierra Vista, AZ
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Sierra Vista, AZ
- Average daylight in July: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in July: 11h and 42min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in July
Sierra Vista, AZ
- Average sunshine days in July: 6.5 days
The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (6.5 days).
Average UV index in July
Sierra Vista, AZ
- Average UV index in July: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in July
Sierra Vista, AZ
- Average cloud cover in July: 24
The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in July
Sierra Vista, 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).
