August weather forecast
Arnold, CA

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Weather in August

The last month of the summer, August, is another warm month in Arnold, California, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 56.8°F (13.8°C).

Temperature

Arnold's weather in August displays an average high-temperature of a still warm 84.9°F (29.4°C), showing minor disparity from July's 85.8°F (29.9°C). In August, the temperature sees a substantial plunge from daytime highs to a low average of 56.8°F (13.8°C).

Humidity

The average relative humidity in August in Arnold is 37%.

Rainfall

The months with the least rainfall are July and August Rain falls for 1.6 days and accumulates 0.08" (2mm) of rain.

Snowfall

June through September are months without snowfall.

Daylight

In Arnold, the average length of the day in August is 13h and 36min.
On the first day of August, sunrise is at 6:04 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm PDT.

Sunshine

In Arnold, the average sunshine in August is 12h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

How hot is August?

The high-temperature, in August, in Arnold, is 84.9°F (29.4°C), while the low-temperature averages to 56.8°F (13.8°C).

What is the average humidity in August?

In August, the average relative humidity is 37%.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 1.6 days and accumulates 0.08" (2mm) of rain.

How much does it rain in August?

In Arnold, in August, it is raining for 1.6 days, with typically 0.08" (2mm) of accumulated precipitation.

When it does not snow in Arnold?

June through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 36min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:04 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm PDT.

How many hours of sunshine does Arnold have in August?

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

What are the months with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August?

In Arnold, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe 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
Arnold, CA

Average temperature in August - Arnold, CA
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48°F).

  • Average low temperature in August: 56.8°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (32°F).

Average pressure in August
Arnold, CA

Average pressure in August - Arnold, CA
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Arnold, CA

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

The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in August
Arnold, CA

Average humidity in August - Arnold, CA
  • Average humidity in August: 37%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (36%).

Average rainfall in August
Arnold, CA

Average rainfall in August - Arnold, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is March (5.98").
The driest months (with the least rainfall) are July and August (0.08").

Average rainfall days in August
Arnold, CA

Average rainfall days in August - Arnold, CA
  • Average rainfall days in August: 1.6 days

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (1.6 days).

Average snowfall in August
Arnold, CA

Average snowfall in August - Arnold, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (21.34").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Arnold, CA

Average snowfall days in August - Arnold, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is March (7.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • 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: 6h and 0min).

Average sunshine days in August
Arnold, CA

Average sunshine days in August - Arnold, CA
  • Average sunshine days in August: 27.9 days

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is March (14.5 days).

Average UV index in August
Arnold, CA

Average UV index in August - Arnold, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in August
Arnold, CA

Average cloud cover in August - Arnold, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in August
Arnold, CA

Average visibility in August - Arnold, 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).

Arnold, California, USA

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