August weather forecast
Winston, OR

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Weather in August

The last month of the summer, August, is another warm month in Winston, Oregon, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 47.5°F (8.6°C).

Temperature

The temperatures reach their highest averages in August, with highs of 81°F (27.2°C) and lows of 47.5°F (8.6°C).

Heat index

During August, the heat index is calculated to be 84.2°F (29°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild 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 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 71%.

Rainfall

The month with the least rainfall is August, when the rain falls for 3.7 days and typically collects 0.2" (5mm) of precipitation.

Snowfall

In Winston, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 53min.
On the first day of August, sunrise is at 6:05 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:49 pm PDT.

Sunshine

July and August, with an average of 11h of sunshine, are months with the most sunshine.

UV index

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 in August transforms into the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the hottest time of year in Winston?

The warmest temperatures in Winston occur during August, when averages reach a peak of 81°F (27.2°C) and a low of 47.5°F (8.6°C).

What is the usual temperature for Winston in August?

In Winston, in August, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 47.5°F (8.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is calculated to be 84.2°F (29°C).

What is the least humid month in Winston?

The months with the lowest humidity in Winston, Oregon, are July and August, with an average relative humidity of 71%.

What is the average humidity in August in Winston?

In Winston, Oregon, the average relative humidity in August is 71%.

What is the driest month in Winston?

August is the month with the least rainfall in Winston. Rain falls for 3.7 days and accumulates 0.2" (5mm) of precipitation.

How many days does it rain in August in Winston?

In Winston, in August, during 3.7 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

When it does not snow in Winston?

In Winston, Oregon, snow does not fall in April through October.

How many hours of daylight does Winston have in August?

In August, the average day length in Winston, Oregon, is 13h and 53min.

When is the sunrise / sunset in August in Winston?

In August, on the first day of the month, sunrise is at 6:05 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:49 pm PDT.

What is the month with the most sunshine in Winston?

July and August, with an average of 11h of sunshine, are months with the most sunshine in Winston, Oregon.

How many hours of sunshine does Winston have in August?

The average sunshine duration in August in Winston, Oregon, is 11h.

What is the UV index intensity in August in Winston?

The average daily maximum UV index in August in Winston, Oregon, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Winston, OR

Average temperature in August - Winston, OR
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (46.2°F).

  • Average low temperature in August: 47.5°F

The month with the highest average low temperature is August (47.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).

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Average pressure in August
Winston, OR

Average pressure in August - Winston, OR
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in August
Winston, OR

Average wind speed in August - Winston, OR
  • Average wind speed in August: 3.4mph

The windiest month (with the highest average wind speed) is January (4mph).
The calmest months (with the lowest average wind speed) are September and October (3.2mph).

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Average humidity in August
Winston, OR

Average humidity in August - Winston, OR
  • Average humidity in August: 71%

The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are July and August (71%).

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Average rainfall in August
Winston, OR

Average rainfall in August - Winston, OR
  • Average rainfall in August: 0.2"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in August
Winston, OR

Average rainfall days in August - Winston, OR
  • Average rainfall days in August: 3.7 days

The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is July (3.5 days).

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Average snowfall in August
Winston, OR

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

The month with the highest snowfall is February (1.26").
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
Winston, OR

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

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 11h and 0min

The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

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Average sunshine days in August
Winston, OR

Average sunshine days in August - Winston, OR
  • Average sunshine days in August: 26.2 days

The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is March (9.7 days).

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Average UV index in August
Winston, OR

Average UV index in August - Winston, 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, March, November and December (UV index 2).

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Average cloud cover in August
Winston, OR

Average cloud cover in August - Winston, OR
  • Average cloud cover in August: 28

The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Winston, OR

Average visibility in August - Winston, OR
  • Average visibility in August: 4mi

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

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Winston, Oregon, USA

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