August weather forecast
Downey, CA

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Weather in August

August, the last month of the summer in Downey, is another warm month, with an average temperature varying between 65.8°F (18.8°C) and 84°F (28.9°C).

Temperature

In Downey, August is the month with the highest recorded average temperatures, measuring a high of 84°F (28.9°C) and a low of 65.8°F (18.8°C).

Heat index

The heat index in August is computed to be a tropical 87.8°F (31°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in August is 59%.

Rainfall

In August, in Downey, the rain falls for 1.8 days. Throughout August, 0.12" (3mm) of precipitation is accumulated. In Downey, during the entire year, the rain falls for 46 days and collects up to 6.77" (172mm) of precipitation.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:52 pm. On the last day of August, in Downey, sunrise is at 6:26 am and sunset at 7:19 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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What is the warmest month in Downey?

August, characterized by an average high temperature of 84°F (28.9°C) and a low temperature of 65.8°F (18.8°C), is generally the warmest month.

How hot is August in Downey?

The high-temperature, in August, in Downey, records 84°F (28.9°C), while the low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 87.8°F (31°C).

What is the average humidity in August in Downey?

The average relative humidity in August in Downey is 59%.

How many days does it rain in August in Downey?

In Downey, during August, the rain falls for 1.8 days and regularly aggregates up to 0.12" (3mm) of precipitation.

How many hours of daylight does Downey have in August?

In August, the average day length in Downey, California, is 13h and 23min.

When is the sunrise / sunset in August in Downey?

On the first day of August in Downey, California, sunrise is at 6:04 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:19 pm PDT.

What are the months with the most sunshine in Downey?

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

How many hours of sunshine does Downey have in August?

In August, the average sunshine duration in Downey, California, is 12h.

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

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

How high is the UV index in August in Downey?

In Downey, California, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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 August
Downey, CA

Average temperature in August - Downey, CA
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (64.9°F).

  • Average low temperature in August: 65.8°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 (50.5°F).

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Average pressure in August
Downey, CA

Average pressure in August - Downey, CA
  • Average pressure in August: 29.9"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).

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Average wind speed in August
Downey, CA

Average wind speed in August - Downey, CA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

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Average humidity in August
Downey, CA

Average humidity in August - Downey, CA
  • Average humidity in August: 59%

The month with the highest relative humidity is June (65%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in August
Downey, CA

Average rainfall in August - Downey, CA
  • Average rainfall in August: 0.12"

The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in August
Downey, CA

Average rainfall days in August - Downey, CA
  • Average rainfall days in August: 1.8 days

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.3 days).

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Average daylight in August /
Average sunshine in August
Downey, CA

Average daylight in August / Average sunshine in August - Downey, CA
  • Average daylight in August: 13h and 2min

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 August: 12h and 0min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

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Average sunshine days in August
Downey, CA

Average sunshine days in August - Downey, CA
  • Average sunshine days in August: 26.3 days

The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (22.2 days).

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Average UV index in August
Downey, CA

Average UV index in August - Downey, CA
  • Average UV index in August: 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 February, November and December (UV index 4).

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Average cloud cover in August
Downey, CA

Average cloud cover in August - Downey, CA
  • Average cloud cover in August: 6

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).

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Average visibility in August
Downey, CA

Average visibility in August - Downey, CA
  • Average visibility in August: 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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Downey, California, USA

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