The Dalles
Oregon, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
The Dalles, OR

August, the last month of the summer, in The Dalles, is another hot month, with average temperature fluctuating between 61°F (16.1°C) and 88°F (31.1°C).

Temperature

The warmest months are July and August, with an average high-temperature of 88°F (31.1°C).

Rainfall

In The Dalles, in August, it is raining for 4 days, with typically 0.3" (7.6mm) of accumulated precipitation. In The Dalles, during the entire year, the rain falls for 105 days and collects up to 14.2" (360.7mm) of precipitation.

Daylight

In The Dalles, Oregon, the average length of the day in August is 14.1h.

Sunshine

In August, the average sunshine in The Dalles is 10h.

UV index

In August, the average daily maximum UV index in The Dalles is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in August interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What are the warmest months in The Dalles?

July and August, with an average high-temperature of 88°F (31.1°C), are warmest months in The Dalles.

What is the temperature in August in The Dalles?

In August, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 61°F (16.1°C).

How many days does it rain in August in The Dalles?

In The Dalles, Oregon, during August, the rain falls for 4 days and regularly aggregates up to 0.3" (7.6mm) of precipitation.

How many hours of daylight does The Dalles have in August?

In August, the average length of the day in The Dalles is 14.1h.

How long on average sun shines in August in The Dalles?

In The Dalles, Oregon, the average sunshine in August is 10h.

How high is the UV index in August in The Dalles?

The average daily maximum UV index in August in The Dalles is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.
Average temperature in August - The Dalles, OR
  • Average high temperature in August: 88°F

Warmest months (with the highest average high temperature) are July and August (88°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in August: 61°F

Months with the highest average low temperature are July and August (61°F).
Coldest months (with the lowest average low temperature) are January and December (30°F).

Average rainfall in August - The Dalles, OR
  • Average rainfall in August: 0.3"

Wettest months (with the highest rainfall) are January and December (2.6").
The driest month (with the lowest rainfall) is July (0.2").

Average rainfall days in August - The Dalles, OR
  • Average rainfall days in August: 4 days

The month with the highest number of rainy days is December (14 days).
The month with the lowest number of rainy days is July (3 days).

Average daylight in August / Average sunshine in August - The Dalles, OR
  • Average daylight in August: 14.1h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in August: 10h

The month with most sunshine is July (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 2h).

Average UV index in August - The Dalles, OR
  • Average UV index in August: 7

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).