July weather forecast
Whittier, CA

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Weather in July

July, like June, in Whittier, California, is a moderately hot summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 63.9°F (17.7°C).

Temperature

As July sets, the average high-temperature shows a slight increase, moving up from 79.2°F (26.2°C) in June to a still warm 84.7°F (29.3°C). Throughout the month of July, Whittier sees a steady low-temperature average of 63.9°F (17.7°C).

Heat index

The heat index for July is evaluated at a hot 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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

In July, the average relative humidity is 57%.

Rainfall

In July, in Whittier, the rain falls for 2.3 days. Throughout July, 0.12" (3mm) of precipitation is accumulated. Throughout the year, in Whittier, there are 38.2 rainfall days, and 5.28" (134mm) of precipitation is accumulated.

Daylight

In Whittier, the average length of the day in July is 14h and 9min.
On the first day of July in Whittier, sunrise is at 5:44 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 7:53 pm PDT.

Sunshine

July and August, with an average of 12h of sunshine, are months with the most sunshine in Whittier, California.

UV index

In Whittier, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 during July translates into the following guidance:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

How hot is July in Whittier?

The average high-temperature and low-temperature during July are 84.7°F (29.3°C) and 63.9°F (17.7°C) respectively. In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in July in Whittier?

In July, the average relative humidity in Whittier, California, is 57%.

How much does it rain in Whittier in July?

In Whittier, during July, the rain falls for 2.3 days and regularly aggregates up to 0.12" (3mm) of precipitation.

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

The average day length in July in Whittier is 14h and 9min.

When is the sunrise / sunset in July in Whittier?

On the first day of July in Whittier, sunrise is at 5:44 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 7:53 pm PDT.

What are the months with the most sunshine in Whittier?

The months with the most sunshine are July and August, with an average of 12h of sunshine.

How many hours of sunshine does Whittier have in July?

In July, the average sunshine duration is 12h.

How high is the UV index in July in Whittier?

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

Average temperature in July
Whittier, CA

Average temperature in July - Whittier, CA
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (64.9°F).

  • Average low temperature in July: 63.9°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).

Average pressure in July
Whittier, CA

Average pressure in July - Whittier, CA
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in July
Whittier, CA

Average wind speed in July - Whittier, CA
  • Average wind speed in July: 5.1mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

Average humidity in July
Whittier, CA

Average humidity in July - Whittier, CA
  • Average humidity in July: 57%

The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (47%).

Average rainfall in July
Whittier, CA

Average rainfall in July - Whittier, CA
  • Average rainfall in July: 0.12"

The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in July
Whittier, CA

Average rainfall days in July - Whittier, CA
  • Average rainfall days in July: 2.3 days

The month with the highest number of rainy days is March (5.1 days).
The month with the least rainy days is June (1 days).

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

Average daylight in July / Average sunshine in July - Whittier, 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: 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 February (Average sunshine: 6h and 42min).

Average sunshine days in July
Whittier, CA

Average sunshine days in July - Whittier, CA
  • Average sunshine days in July: 27.3 days

The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (22.6 days).

Average UV index in July
Whittier, CA

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

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 4).

Average cloud cover in July
Whittier, CA

Average cloud cover in July - Whittier, CA
  • Average cloud cover in July: 8

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
Whittier, CA

Average visibility in July - Whittier, 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).

Whittier, California, USA

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