July weather forecastSierra Vista, CA
July
Weather in July
July is a torrid summer month in Sierra Vista, California, with an average temperature fluctuating between 100°F (37.8°C) and 65.8°F (18.8°C).Temperature
July is the warmest month, with the temperature often reaching an average high of 100°F (37.8°C) and an average low of 65.8°F (18.8°C).Humidity
July is the least humid month, with an average relative humidity of 31%.Rainfall
In Sierra Vista, in July, it is raining for 2 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, there are 51 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Daylight
The average length of the day in July is 14h and 25min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:25 pm. On the last day of July, sunrise is at 6:05 am and sunset at 8:09 pm PDT.
Sunshine
With an average of 12.2h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index in Sierra Vista are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 7 during July leads to these advisories:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Sierra Vista, CA
- Average high temperature in July: 100°F
The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in July: 65.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in July
Sierra Vista, CA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in July
Sierra Vista, CA
- Average wind speed in July: 7.3mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in July
Sierra Vista, CA
- Average humidity in July: 31%
The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (31%).
Average rainfall in July
Sierra Vista, CA
- Average rainfall in July: 0.08"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in July
Sierra Vista, CA
- Average rainfall days in July: 2 days
The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (0.8 days).
Average daylight in July /
Average sunshine in July
Sierra Vista, CA
- Average daylight in July: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in July: 12h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in July
Sierra Vista, CA
- Average sunshine days in July: 27.8 days
The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in July
Sierra Vista, CA
- Average UV index in July: 7
The months with the highest UV index are June, July and August (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, CA
- Average cloud cover in July: 5
The months with the most cloud cover are March and December (Cloud cover 30).
The months with the least cloud cover are July, August and September (Cloud cover 5).
Average visibility in July
Sierra Vista, CA
- 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).





