August weather forecast
Foster, OR

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Weather in August

The last month of the summer, August, is also a moderately hot month in Foster, Oregon, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 49.8°F (9.9°C).

Temperature

August is the warmest month, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 49.8°F (9.9°C).

Humidity

With an average relative humidity of 66%, August is the least humid month.

Rainfall

In Foster, in August, during 4.2 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 167.6 rainfall days, and 36.54" (928mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Foster.

Daylight

In August, the average length of the day in Foster is 13h and 58min.
On the first day of August, sunrise is at 5:58 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:48 pm PDT.

Sunshine

The month with the most sunshine in Foster is August, with an average of 11.3h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in August transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the warmest month in Foster?

Foster's temperatures tend to reach their peak averages in August, with a high of 79.5°F (26.4°C) and a low of 49.8°F (9.9°C).

What is the temperature in August in Foster?

In August, the average high-temperature and low-temperature in Foster are 79.5°F (26.4°C) and 49.8°F (9.9°C) respectively.

What is the least humid month in Foster?

August is the least humid month, with an average relative humidity of 66%.

What is the average humidity in August in Foster?

In August, the average relative humidity in Foster, Oregon, is 66%.

How many days does it rain in August in Foster?

In Foster, during August, the rain falls for 4.2 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow in Foster?

May through October are months without snowfall in Foster, Oregon.

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

The average day length in August in Foster is 13h and 58min.

When are sunrise and sunset in August in Foster?

On the first day of August in Foster, Oregon, sunrise is at 5:58 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:48 pm PDT.

What month has the most sunshine in Foster?

With an average of 11.3h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August in Foster?

The average sunshine duration in August in Foster is 11.3h.

What is the UV index reading in August in Foster?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Foster, OR

Average temperature in August - Foster, OR
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in August: 49.8°F

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).

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Average pressure in August
Foster, OR

Average pressure in August - Foster, 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
Foster, OR

Average wind speed in August - Foster, OR
  • Average wind speed in August: 3.7mph

The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in August
Foster, OR

Average humidity in August - Foster, OR
  • Average humidity in August: 66%

The months with the highest relative humidity are February, March and December (86%).
The month with the lowest relative humidity is August (66%).

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Average rainfall in August
Foster, OR

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

The wettest month (with the highest rainfall) is December (5.47").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in August
Foster, OR

Average rainfall days in August - Foster, OR
  • Average rainfall days in August: 4.2 days

The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is July (4.1 days).

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Average snowfall in August
Foster, OR

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

The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Foster, OR

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

The month with the highest number of snowfall days is February (3.4 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
Foster, OR

Average daylight in August / Average sunshine in August - Foster, OR
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 11h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

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Average sunshine days in August
Foster, OR

Average sunshine days in August - Foster, OR
  • Average sunshine days in August: 24.8 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in August
Foster, OR

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in August
Foster, OR

Average cloud cover in August - Foster, OR
  • Average cloud cover in August: 19

The months with the most cloud cover are February and March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in August
Foster, OR

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

The month with the highest visibility is August (6mi).
The months with the lowest visibility are February and April (4mi).

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Foster, Oregon, USA

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