July weather forecast
Tracy, CA

July, the same as June, in Tracy, California, is another hot summer month, with an average temperature ranging between max 92.5°F (33.6°C) and min 58.1°F (14.5°C).

Temperature

With an average high-temperature of 92.5°F (33.6°C) and an average low-temperature of 58.1°F (14.5°C), July is the warmest month.

Heat index

In July, the average heat index is estimated at a torrid 96.8°F (36°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, pregnancy, clothing). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

July is the least humid month, with an average relative humidity of 45%.

Rainfall

In Tracy, during 2.6 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Tracy, during the entire year, the rain falls for 60.6 days and collects up to 5.71" (145mm) of precipitation.

Snowfall

January through November are months without snowfall.

Daylight

In July, the average length of the day in Tracy is 14h and 28min.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:31 pm. On the last day of July, in Tracy, sunrise is at 6:08 am and sunset at 8:15 pm PDT.

Sunshine

With an average of 12.1h of sunshine, July has the most sunshine of the year.

UV index

The month with the highest UV index in Tracy is July, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.