July weather forecast
Davis, CA

July, like June, is a hot summer month in Davis, California, with an average temperature fluctuating between 93.6°F and 58.6°F.

Temperature

Davis's July weather, with an average high temperature of 93.6°F and an average low temperature of 58.6°F, tends to be the warmest of the year.

Heat index

The average heat index in July is calculated to be a torrid 100.4°F. Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. 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. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Davis, the average relative humidity in July is 47%.

Rainfall

July and August are months with the least rain in Davis when the rain falls for 0.8 days and typically aggregates up to 0.04" of rain.

Daylight

In July, the average length of the day in Davis is 14h and 32min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:35 pm. On the last day of July, in Davis, sunrise is at 6:08 am and sunset at 8:18 pm PDT.

Sunshine

The month with the most sunshine is July, with an average of 12.1h of sunshine.

UV index

June and July, with an average maximum UV index of 7, are months with the highest UV index in Davis, California. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 in July translates into these instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.