August weather forecast
Shasta Lake, CA

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Weather in August

The last month of the summer, August, is another tropical month in Shasta Lake, California, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 91.2°F (32.9°C).

Temperature

Transitioning from July to August, Shasta Lake observes an average high-temperature of a still tropical 91.2°F (32.9°C), differing subtly from the previous month. Despite a significant daily temperature range, Shasta Lake's temperature falls to a steady low-temperature average of 60.4°F (15.8°C) in August.

Humidity

The least humid month in Shasta Lake is August, with an average relative humidity of 35%.

Rainfall

In Shasta Lake, in August, during 1.6 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Shasta Lake, during the entire year, the rain falls for 99.5 days and collects up to 30.43" (773mm) of precipitation.

Snowfall

In Shasta Lake, snow does not fall in April through October.

Daylight

The average length of the day in August in Shasta Lake is 13h and 44min.
On the first day of August in Shasta Lake, sunrise is at 6:07 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:42 pm PDT.

Sunshine

In Shasta Lake, the average sunshine in August is 12h.

UV index

In August, the average daily maximum UV index in Shasta Lake, California, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 during August translates into the following guidance:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

How hot is it in Shasta Lake in August?

August temperatures vary between a high-temperature of 91.2°F (32.9°C) and a low-temperature of 60.4°F (15.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in June is calculated to be 84.2°F (29°C).

What is the least humid month in Shasta Lake?

With an average relative humidity of 35%, August is the least humid month in Shasta Lake, California.

What is the average humidity in August in Shasta Lake?

In Shasta Lake, the average relative humidity in August is 35%.

How many days does it rain in August in Shasta Lake?

In Shasta Lake, in August, it is raining for 1.6 days, with typically 0.16" (4mm) of accumulated precipitation.

When it does not snow in Shasta Lake?

April through October are months without snowfall in Shasta Lake, California.

How many hours of daylight does Shasta Lake have in August?

In Shasta Lake, California, the average day length in August is 13h and 44min.

When are sunrise and sunset in August in Shasta Lake?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:42 pm PDT.

How many hours of sunshine does Shasta Lake have in August?

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

What is the UV index intensity in August in Shasta Lake?

In August, the average daily maximum UV index in Shasta Lake 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Shasta Lake, CA

Average temperature in August - Shasta Lake, CA
  • Average high temperature in August: 91.2°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (49.3°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).

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Average pressure in August
Shasta Lake, CA

Average pressure in August - Shasta Lake, CA
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

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Average wind speed in August
Shasta Lake, CA

Average wind speed in August - Shasta Lake, CA
  • Average wind speed in August: 4.4mph

The windiest months (with the highest average wind speed) are March, April, June and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.4mph).

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Average humidity in August
Shasta Lake, CA

Average humidity in August - Shasta Lake, CA
  • Average humidity in August: 35%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in August
Shasta Lake, CA

Average rainfall in August - Shasta Lake, CA
  • Average rainfall in August: 0.16"

The wettest month (with the highest rainfall) is March (5.91").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in August
Shasta Lake, CA

Average rainfall days in August - Shasta Lake, CA
  • Average rainfall days in August: 1.6 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.6 days).

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Average snowfall in August
Shasta Lake, CA

Average snowfall in August - Shasta Lake, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is December (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Shasta Lake, CA

Average snowfall days in August - Shasta Lake, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Shasta Lake, CA

Average daylight in August / Average sunshine in August - Shasta Lake, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in August
Shasta Lake, CA

Average sunshine days in August - Shasta Lake, CA
  • Average sunshine days in August: 27.3 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.7 days).

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Average UV index in August
Shasta Lake, CA

Average UV index in August - Shasta Lake, CA
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in August
Shasta Lake, CA

Average cloud cover in August - Shasta Lake, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in August
Shasta Lake, CA

Average visibility in August - Shasta Lake, 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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Shasta Lake, California, USA

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