July weather forecastWillowbrook, CA
July
Weather in July
July, like June, in Willowbrook, California, is a moderately hot summer month, with an average temperature ranging between max 79.3°F (26.3°C) and min 63.9°F (17.7°C).Temperature
Willowbrook's July showcases an average high-temperature of a still warm 79.3°F (26.3°C), hardly distinct from June's 74.8°F (23.8°C). In July, the recorded average low-temperature is a refreshing 63.9°F (17.7°C).Humidity
In July, the average relative humidity is 65%.Rainfall
In Willowbrook, during July, the rain falls for 3.1 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 49.7 rainfall days, and 6.77" (172mm) of precipitation is accumulated.Daylight
In July, the average length of the day in Willowbrook, California, is 14h and 9min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of July, sunrise is at 6:04 am and sunset at 7:54 pm PDT.
Sunshine
July and August, with an average of 12h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In July, the maximum UV index of 6 suggests these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Willowbrook, CA
- Average high temperature in July: 79.3°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (64°F).
- Average low temperature in July: 63.9°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is February (51.4°F).
Average pressure in July
Willowbrook, CA
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in July
Willowbrook, CA
- Average wind speed in July: 5.2mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are September and October (4.8mph).
Average humidity in July
Willowbrook, CA
- Average humidity in July: 65%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (53%).
Average rainfall in July
Willowbrook, CA
- Average rainfall in July: 0.24"
The wettest months (with the highest rainfall) are January and February (1.26").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in July
Willowbrook, CA
- Average rainfall days in July: 3.1 days
The month with the highest number of rainy days is March (7 days).
The month with the least rainy days is June (1.3 days).
Average daylight in July /
Average sunshine in July
Willowbrook, CA
- Average daylight in July: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in July: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in July
Willowbrook, CA
- Average sunshine days in July: 24.9 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in July
Willowbrook, CA
- Average UV index in July: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in July
Willowbrook, CA
- Average cloud cover in July: 9
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in July
Willowbrook, 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).





