August weather forecast
Rio Dell, CA

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Weather in August

The last month of the summer, August, is a warm month in Rio Dell, California, with an average temperature fluctuating between 74.1°F (23.4°C) and 51.8°F (11°C).

Temperature

In Rio Dell, August is the warmest month, with temperatures averaging a high of 74.1°F (23.4°C) and a low of 51.8°F (11°C).

Humidity

In Rio Dell, the average relative humidity in August is 75%.

Rainfall

In Rio Dell, in August, during 1.8 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Rio Dell, California, during the entire year, the rain falls for 110.9 days and collects up to 28.27" (718mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In Rio Dell, the average length of the day in August is 13h and 44min.
On the first day of August in Rio Dell, sunrise is at 6:14 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:49 pm PDT.

Sunshine

July and August, with an average of 11.6h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Rio Dell are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What time of the year is the hottest in Rio Dell?

August, with its high-temperature average of 74.1°F (23.4°C) and a low-temperature average of 51.8°F (11°C), is the warmest month.

What are August temperatures in Rio Dell?

During August, Rio Dell experiences an average high-temperature of 74.1°F (23.4°C) and a low-temperature of 51.8°F (11°C).

What is the average humidity in August in Rio Dell?

In Rio Dell, the average relative humidity in August is 75%.

How much does it rain in Rio Dell in August?

In Rio Dell, in August, during 1.8 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

When it does not snow in Rio Dell?

In Rio Dell, snow does not fall in January, March through December.

What is the average length of the day in August in Rio Dell?

The average day length in August is 13h and 44min.

When are sunrise and sunset in August in Rio Dell?

In August, on the first day of the month, sunrise is at 6:14 am and sunset at 8:30 pm. On the last day of the month, in Rio Dell, California, sunrise is at 6:43 am and sunset at 7:49 pm PDT.

What is the month with the most sunshine in Rio Dell?

The months with the most sunshine are July and August, with an average of 11.6h of sunshine.

How long on average sun shines in August in Rio Dell?

In Rio Dell, California, the average sunshine duration in August is 11.6h.

What is the month with the highest UV index in Rio Dell?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Rio Dell.

What is the UV index intensity in August in Rio Dell?

The average daily maximum UV index in August in Rio Dell is 5. A UV Index of 3 to 5 symbolizes a medium 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
Rio Dell, CA

Average temperature in August - Rio Dell, CA
  • Average high temperature in August: 74.1°F

The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).

  • Average low temperature in August: 51.8°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).

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Average pressure in August
Rio Dell, CA

Average pressure in August - Rio Dell, CA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.96"Hg).

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Average wind speed in August
Rio Dell, CA

Average wind speed in August - Rio Dell, CA
  • Average wind speed in August: 5.9mph

The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in August
Rio Dell, CA

Average humidity in August - Rio Dell, CA
  • Average humidity in August: 75%

The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).

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Average rainfall in August
Rio Dell, CA

Average rainfall in August - Rio Dell, CA
  • Average rainfall in August: 0.12"

The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in August
Rio Dell, CA

Average rainfall days in August - Rio Dell, CA
  • Average rainfall days in August: 1.8 days

The month with the highest number of rainy days is March (17.3 days).
The months with the least rainy days are July and August (1.8 days).

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Average snowfall in August
Rio Dell, CA

Average snowfall in August - Rio Dell, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Rio Dell, CA

Average snowfall days in August - Rio Dell, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in August /
Average sunshine in August
Rio Dell, CA

Average daylight in August / Average sunshine in August - Rio Dell, 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: 11h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in August
Rio Dell, CA

Average sunshine days in August - Rio Dell, CA
  • Average sunshine days in August: 27.9 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).

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Average UV index in August
Rio Dell, CA

Average UV index in August - Rio Dell, CA
  • Average UV index in August: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average cloud cover in August
Rio Dell, CA

Average cloud cover in August - Rio Dell, CA
  • Average cloud cover in August: 16

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in August
Rio Dell, CA

Average visibility in August - Rio Dell, CA
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).

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Rio Dell, California, USA

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