July weather forecastChester, CA
July
Weather in July
July in Chester, California, is a moderately hot summer month, with an average temperature ranging between min 49.5°F (9.7°C) and max 81.3°F (27.4°C).Temperature
July stands out as Chester's warmest month, with an average high-temperature of 81.3°F (27.4°C) and a low-temperature of 49.5°F (9.7°C).Heat index
July's heat index is evaluated at 80.6°F (27°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. 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.
Humidity
The least humid month is July, with an average relative humidity of 42%.Rainfall
July is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.39" (10mm) of precipitation.Snowfall
July and August are months without snowfall.Daylight
In July, the average length of the day is 14h and 43min.On the first day of July in Chester, sunrise is at 5:39 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:20 pm PDT.
Sunshine
July has the most sunshine of the year, with an average of 12.1h of sunshine.UV index
July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. 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 hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Chester, CA
- Average high temperature in July: 81.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in July: 49.5°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in July
Chester, CA
- Average pressure in July: 29.91"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Chester, CA
- Average wind speed in July: 5mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in July
Chester, CA
- Average humidity in July: 42%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is July (42%).
Average rainfall in July
Chester, CA
- Average rainfall in July: 0.39"
The wettest month (with the highest rainfall) is March (5.59").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in July
Chester, CA
- Average rainfall days in July: 4.3 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is August (4 days).
Average snowfall in July
Chester, CA
- Average snowfall in July: 0"
The month with the highest snowfall is March (27.05").
The months with the least snowfall are July and August (0").
Average snowfall days in July
Chester, CA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is March (14 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in July /
Average sunshine in July
Chester, CA
- Average daylight in July: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in July: 12h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in July
Chester, CA
- Average sunshine days in July: 24.2 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in July
Chester, CA
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in July
Chester, CA
- Average cloud cover in July: 7
The month with the most cloud cover is March (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in July
Chester, CA
- Average visibility in July: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





