July weather forecastWestmont, CA
July
Weather in July
July, like June, in Westmont, California, is a moderately hot summer month, with an average temperature varying between 78.3°F (25.7°C) and 63.3°F (17.4°C).Temperature
With the onset of July, Westmont's average high-temperature clocks in at a still moderately hot 78.3°F (25.7°C), showing a minor fluctuation from the previous month. In July, the average low-temperature is a refreshing 63.3°F (17.4°C).Humidity
In July, the average relative humidity is 67%.Rainfall
In Westmont, during July, the rain falls for 3.4 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Westmont, during the entire year, the rain falls for 47.6 days and collects up to 7.24" (184mm) of precipitation.Daylight
The average length of the day in July 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 11.9h 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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In July, the maximum UV index of 6 suggests this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Westmont, CA
- Average high temperature in July: 78.3°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (64°F).
- Average low temperature in July: 63.3°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (51.1°F).
Average pressure in July
Westmont, CA
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Westmont, CA
- Average wind speed in July: 5.2mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).
Average humidity in July
Westmont, CA
- Average humidity in July: 67%
The month with the highest relative humidity is June (70%).
The month with the lowest relative humidity is November (54%).
Average rainfall in July
Westmont, CA
- Average rainfall in July: 0.28"
The wettest month (with the highest rainfall) is January (1.42").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in July
Westmont, CA
- Average rainfall days in July: 3.4 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.7 days).
Average daylight in July /
Average sunshine in July
Westmont, CA
- Average daylight in July: 14h and 12min
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: 11h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in July
Westmont, CA
- Average sunshine days in July: 23.9 days
The month with the most sunshine days is October (25.5 days).
The month with the least sunshine days is June (21.4 days).
Average UV index in July
Westmont, 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
Westmont, CA
- Average cloud cover in July: 10
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 7).
Average visibility in July
Westmont, 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).
