August weather forecast
Gresham, OR

The fall colors in the trees and the fields around a beautiful house in Gresham, Oregon
The fall colors in the trees and the fields around a beautiful house in Gresham, Oregon

Weather in August

August, the last month of the summer in Gresham, is another warm month, with an average temperature ranging between max 80.4°F (26.9°C) and min 53.4°F (11.9°C).

Temperature

August is the warmest month, with an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 53.4°F (11.9°C).

Humidity

With an average relative humidity of 64%, August is the least humid month.

Rainfall

In Gresham, in August, it is raining for 4.4 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, there are 165.6 rainfall days, and 34.65" (880mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Gresham, Oregon.

Daylight

In Gresham, the average length of the day in August is 14h and 3min.
On the first day of August, sunrise is at 5:53 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:49 pm PDT.

Sunshine

The months with the most sunshine are July and August, with an average of 10.9h of sunshine.

UV index

In August, the average daily maximum UV index in Gresham is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Gresham?

With an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 53.4°F (11.9°C), August is the warmest month.

What is the temperature in August in Gresham?

In Gresham, Oregon, in August, the average high-temperature is 80.4°F (26.9°C), and the average low-temperature is 53.4°F (11.9°C).

What is the least humid month in Gresham?

August is the least humid month in Gresham, with an average relative humidity of 64%.

What is the average humidity in August in Gresham?

In August, the average relative humidity in Gresham is 64%.

How many days does it rain in August in Gresham?

In Gresham, during August, the rain falls for 4.4 days and regularly aggregates up to 0.39" (10mm) of precipitation.

When it does not snow in Gresham?

April through October are months without snowfall in Gresham.

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

The average day length in August in Gresham, Oregon, is 14h and 3min.

What time are sunrise and sunset in August in Gresham?

On the first day of August in Gresham, sunrise is at 5:53 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:49 pm PDT.

What is the month with the most sunshine in Gresham?

July and August, with an average of 10.9h of sunshine, are months with the most sunshine in Gresham, Oregon.

How long on average sun shines in August in Gresham?

In Gresham, Oregon, the average sunshine duration in August is 10.9h.

What is the UV index intensity in August in Gresham?

The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Gresham, OR

Average temperature in August - Gresham, OR
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in August: 53.4°F

The month with the highest average low temperature is August (53.4°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).

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Average pressure in August
Gresham, OR

Average pressure in August - Gresham, 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
Gresham, OR

Average wind speed in August - Gresham, OR
  • Average wind speed in August: 3.5mph

The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

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Average humidity in August
Gresham, OR

Average humidity in August - Gresham, OR
  • Average humidity in August: 64%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (64%).

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Average rainfall in August
Gresham, OR

Average rainfall in August - Gresham, OR
  • Average rainfall in August: 0.39"

The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.31").

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Average rainfall days in August
Gresham, OR

Average rainfall days in August - Gresham, OR
  • Average rainfall days in August: 4.4 days

The month with the highest number of rainy days is March (19.3 days).
The month with the least rainy days is August (4.4 days).

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Average snowfall in August
Gresham, OR

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

The month with the highest snowfall is March (1.73").
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
Gresham, OR

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

The month with the highest number of snowfall days is February (2.8 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
Gresham, OR

Average daylight in August / Average sunshine in August - Gresham, OR
  • Average daylight in August: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 37min).
The month with the shortest days is December (Average daylight: 8h and 47min).

  • Average sunshine in August: 10h and 54min

The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).

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Average sunshine days in August
Gresham, OR

Average sunshine days in August - Gresham, OR
  • Average sunshine days in August: 24.6 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (9.7 days).

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Average UV index in August
Gresham, OR

Average UV index in August - Gresham, OR
  • Average UV index in August: 4

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
Gresham, OR

Average cloud cover in August - Gresham, OR
  • Average cloud cover in August: 24

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in August
Gresham, OR

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

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

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