Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The arrival of July brings an average high-temperature of a still hot 94.5°F (34.7°C), nearly identical to June's 90.3°F (32.4°C). In the month of July, the nighttime temperature in Rio Vista dips to a steady average of 74.8°F (23.8°C).Heat index
The heat index value for July is computed to be a burning hot 113°F (45°C). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.In terms of the heat index, values are set with light wind and shade conditions in mind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The average relative humidity in July is 62%.Rainfall
In Rio Vista, in July, during 12.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Rio Vista, during the entire year, the rain falls for 135 days and collects up to 29.92" (760mm) of precipitation.Snowfall
In Rio Vista, snow does not fall in January, April through October and December.Daylight
The average length of the day in July is 14h and 1min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:40 pm. On the last day of July, sunrise is at 6:44 am and sunset at 8:27 pm CDT.
Sunshine
July has the most sunshine of the year, with an average of 11h of sunshine.UV index
With an average maximum UV index of 8, July is the month with the highest UV index. A UV Index of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 8 in July translates into the following instructions:
Take all necessary measures. Eyes and skin are at risk if left unprotected. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in July?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
How many hours of daylight does Rio Vista have in July?
What time are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does Rio Vista have in July?
When is the highest UV index?
What is the UV index reading in July?
Average temperature in July
Rio Vista, TX
- Average high temperature in July: 94.5°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in July: 74.8°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in July
Rio Vista, TX
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Rio Vista, TX
- Average wind speed in July: 7.8mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in July
Rio Vista, TX
- Average humidity in July: 62%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (57%).
Average rainfall in July
Rio Vista, TX
- Average rainfall in July: 1.89"
The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in July
Rio Vista, TX
- Average rainfall days in July: 12.1 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in July
Rio Vista, TX
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are January, April, May, June, July, August, September, October and December (0").
Average snowfall days in July
Rio Vista, TX
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (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
Rio Vista, TX
- 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 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in July
Rio Vista, TX
- Average sunshine days in July: 17.3 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in July
Rio Vista, TX
- Average UV index in July: 8
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in July
Rio Vista, TX
- Average cloud cover in July: 22
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in July
Rio Vista, TX
- 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).
Rio Vista, Texas, USA
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