July weather forecast and climate
Duarte, CA

Weather in July

July is a hot summer month in Duarte, California, with average temperature varying between 86.9°F (30.5°C) and 63.5°F (17.5°C).

Temperature

In Duarte, California, the average high-temperature marginally rises, from a moderately hot 81.5°F (27.5°C) in June, to a hot 86.9°F (30.5°C). The average low-temperature, in July, is 63.5°F (17.5°C).

Heat index

In July, the average heat index is calculated to a tropical 89.2°F (31.8°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, metabolic differences). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in July is 50%.

Rainfall

In July, in Duarte, the rain falls for 3.2 days. Throughout July, 0.2" (5mm) of precipitation is accumulated. In Duarte, during the entire year, the rain falls for 50.9 days and collects up to 8.46" (215mm) of precipitation.

Daylight

The average length of the day in Duarte is 14.2h.

Sunshine

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

UV index

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 health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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 wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in July in Duarte?

In July, in Duarte, California, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines air temperature and relative humidity, in July is evaluated at 89.2°F (31.8°C).

What is the average humidity in July in Duarte?

In July, the average relative humidity in Duarte, California, is 50%.

How many days does it rain in July in Duarte?

In Duarte, in July, it is raining for 3.2 days, with typically 0.2" (5mm) of accumulated precipitation.

How many hours of daylight does Duarte have in July?

In Duarte, California, the average length of the day in July is 14.2h.

What month has the most sunshine in Duarte?

July has the most sunshine of the year in Duarte, with an average of 12.1h of sunshine.

How long on average sun shines in July in Duarte?

The average sunshine in July in Duarte is 12.1h.

What are the months with the highest UV index in Duarte?

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

What is the UV index reading in July in Duarte?

The average daily maximum UV index in July in Duarte is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.

Average temperature in July
Duarte, CA

Average temperature in July - Duarte, CA
  • Average high temperature in July: 86.9°F

The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in July: 63.5°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).

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Average pressure in July
Duarte, CA

Average pressure in July - Duarte, CA
  • Average pressure in July: 29.91"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in July
Duarte, CA

Average wind speed in July - Duarte, CA
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in July
Duarte, CA

Average humidity in July - Duarte, CA
  • Average humidity in July: 50%

Months with the highest relative humidity are March and May (56%).
The month with the lowest relative humidity is November (46%).

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Average rainfall in July
Duarte, CA

Average rainfall in July - Duarte, CA
  • Average rainfall in July: 0.2"

The wettest months (with the highest rainfall) are February and December (1.77").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in July
Duarte, CA

Average rainfall days in July - Duarte, CA
  • Average rainfall days in July: 3.2 days

The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.1 days).

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

Average daylight in July / Average sunshine in July - Duarte, CA
  • Average daylight in July: 14.2h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in July: 12.1h

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.9).

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Average sunshine days in July
Duarte, CA

Average sunshine days in July - Duarte, CA
  • Average sunshine days in July: 25.6 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21 days).

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Average UV index in July
Duarte, CA

Average UV index in July - Duarte, CA
  • Average UV index in July: 6

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in July
Duarte, CA

Average cloud cover in July - Duarte, CA
  • Average cloud cover in July: 6

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in July
Duarte, CA

Average visibility in July - Duarte, CA
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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