July weather forecast
Westmont, CA

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Weather in July

July, the same as June, is a moderately hot summer month in Westmont, California, with an average temperature fluctuating between 63.3°F (17.4°C) and 78.3°F (25.7°C).

Temperature

Westmont, California, ushers in July with an average high-temperature of a still moderately hot 78.3°F (25.7°C), showing a close resemblance to the previous month. The temperature in Westmont dips to an average of 63.3°F (17.4°C) during July nights.

Humidity

The average relative humidity in July is 67%.

Rainfall

In July, the rain falls for 3.4 days. Throughout July, 0.28" (7mm) of precipitation is accumulated. Throughout the year, there are 47.6 rainfall days, and 7.24" (184mm) of precipitation is accumulated.

Daylight

The average length of the day in July in Westmont 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, in Westmont, 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 in Westmont.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Westmont. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, the maximum UV index of 6 suggests this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the average July temperature in Westmont?

July temperatures in Westmont vary between a high-temperature of 78.3°F (25.7°C) and a low-temperature of 63.3°F (17.4°C).

What is the average humidity in July in Westmont?

The average relative humidity in July in Westmont is 67%.

How much does it rain in Westmont in July?

In Westmont, California, during July, the rain falls for 3.4 days and regularly aggregates up to 0.28" (7mm) of precipitation.

What is the average length of the day in July in Westmont?

In Westmont, the average day length in July is 14h and 9min.

When is the sunrise / sunset in July in Westmont?

In July, on the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:54 pm PDT.

What are the months with the most sunshine in Westmont?

The months with the most sunshine in Westmont are July and August, with an average of 11.9h of sunshine.

How long on average sun shines in July in Westmont?

In Westmont, the average sunshine duration in July is 11.9h.

What is the month with the highest UV index in Westmont?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Westmont, California.

What is the UV index intensity in July in Westmont?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Westmont, CA

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).

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Average pressure in July
Westmont, CA

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).

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Average wind speed in July
Westmont, CA

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).

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Average humidity in July
Westmont, CA

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%).

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Average rainfall in July
Westmont, CA

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").

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Average rainfall days in July
Westmont, CA

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).

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Average daylight in July /
Average sunshine in July
Westmont, CA

Average daylight in July / Average sunshine in July - Westmont, CA
  • Average daylight in July: 14h and 1min

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 5min

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).

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Average sunshine days in July
Westmont, CA

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).

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Average UV index in July
Westmont, CA

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).

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Average cloud cover in July
Westmont, CA

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).

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Average visibility in July
Westmont, CA

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).

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Westmont, California, USA

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