August weather forecast
Williams, OR

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Weather in August

The last month of the summer, August, is also a moderately hot month in Williams, Oregon, with an average temperature fluctuating between 84.4°F (29.1°C) and 49.5°F (9.7°C).

Temperature

Williams, Oregon, experiences its highest temperatures in August, with an average peak of 84.4°F (29.1°C) and a low of 49.5°F (9.7°C).

Heat index

Throughout August, the heat index is calculated to be a tropical 87.8°F (31°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The least humid month is August, with an average relative humidity of 60%.

Rainfall

In Williams, Oregon, in August, it is raining for 3.5 days, with typically 0.31" (8mm) of accumulated precipitation. In Williams, Oregon, during the entire year, the rain falls for 92.5 days and collects up to 12.09" (307mm) of precipitation.

Snowfall

June through September are months without snowfall in Williams.

Daylight

The average length of the day in August is 13h and 50min.
On the first day of August, sunrise is at 6:06 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:47 pm PDT.

Sunshine

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during August morphs into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What are the warmest months in Williams?

August tends to be the warmest month, with temperatures averaging a daily high of 84.4°F (29.1°C) and a low of 49.5°F (9.7°C).

Is it hot in Williams during August?

In Williams, 84.4°F (29.1°C) is the average high-temperature and 49.5°F (9.7°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the least humid month in Williams?

With an average relative humidity of 60%, August is the least humid month in Williams, Oregon.

What is the average humidity in August in Williams?

The average relative humidity in August in Williams, Oregon, is 60%.

How many days does it rain in August in Williams?

In Williams, during August, the rain falls for 3.5 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow in Williams?

June through September are months without snowfall.

What is the average length of the day in August in Williams?

In August, the average day length is 13h and 50min.

When is the sunrise / sunset in August in Williams?

On the first day of August in Williams, sunrise is at 6:06 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:47 pm PDT.

What is the month with the most sunshine in Williams?

The months with the most sunshine in Williams are July and August, with an average of 11.8h of sunshine.

How many hours of sunshine does Williams have in August?

In Williams, the average sunshine duration in August is 11.8h.

How high is the UV index in August in Williams?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Williams, OR

Average temperature in August - Williams, OR
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (43.5°F).

  • Average low temperature in August: 49.5°F

The months with the highest average low temperature are July and August (49.5°F).
The coldest month (with the lowest average low temperature) is December (28.9°F).

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Average pressure in August
Williams, OR

Average pressure in August - Williams, OR
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).

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Average wind speed in August
Williams, OR

Average wind speed in August - Williams, OR
  • Average wind speed in August: 3.3mph

The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in August
Williams, OR

Average humidity in August - Williams, OR
  • Average humidity in August: 60%

The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in August
Williams, OR

Average rainfall in August - Williams, OR
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is January (2.01").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in August
Williams, OR

Average rainfall days in August - Williams, OR
  • Average rainfall days in August: 3.5 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in August
Williams, OR

Average snowfall in August - Williams, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Williams, OR

Average snowfall days in August - Williams, OR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Williams, OR

Average daylight in August / Average sunshine in August - Williams, OR
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 11h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 0min).

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Average sunshine days in August
Williams, OR

Average sunshine days in August - Williams, OR
  • Average sunshine days in August: 25.3 days

The months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is March (15 days).

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Average UV index in August
Williams, OR

Average UV index in August - Williams, OR
  • Average UV index in August: 5

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

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Average cloud cover in August
Williams, OR

Average cloud cover in August - Williams, OR
  • Average cloud cover in August: 13

The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in August
Williams, OR

Average visibility in August - Williams, OR
  • Average visibility in August: 6mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

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Williams, Oregon, USA

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