August weather forecast
Trail, OR

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Weather in August

August, the last month of the summer in Trail, is another warm month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 49.6°F (9.8°C).

Temperature

August temperatures tend to peak at an average high of 83.8°F (28.8°C) and dip to a low of 49.6°F (9.8°C).

Heat index

August's mean heat index is calculated to be a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

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

Rainfall

In Trail, in August, it is raining for 3.1 days, with typically 0.28" (7mm) of accumulated precipitation. In Trail, during the entire year, the rain falls for 131.5 days and collects up to 20.87" (530mm) of precipitation.

Snowfall

June through October are months without snowfall in Trail, Oregon.

Daylight

In Trail, the average length of the day in August is 13h and 52min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:31 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:46 pm PDT.

Sunshine

The months with the most sunshine are July and August, with an average of 11.9h of sunshine.

UV index

In Trail, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 5 in August translates into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

August is the warmest month of the year, registering average temperatures as high as 83.8°F (28.8°C) and as low as 49.6°F (9.8°C).

How hot is August?

August temperatures vary between a high-temperature of 83.8°F (28.8°C) and a low-temperature of 49.6°F (9.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 87.8°F (31°C).

What is the least humid month?

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

What is the average humidity in August?

In Trail, the average relative humidity in August is 60%.

How much does it rain in August?

In Trail, in August, it is raining for 3.1 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow?

June through October are months without snowfall in Trail.

How many hours of daylight does Trail have in August?

In Trail, the average day length in August is 13h and 52min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:03 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:46 pm PDT.

What are the months with the most sunshine?

July and August, with an average of 11.9h of sunshine, are months with the most sunshine.

How many hours of sunshine does Trail have in August?

In August, the average sunshine duration is 11.9h.

What is the UV index reading in August in Trail?

In Trail, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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
Trail, OR

Average temperature in August - Trail, OR
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in August: 49.6°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (30.4°F).

Average pressure in August
Trail, OR

Average pressure in August - Trail, 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).

Average wind speed in August
Trail, OR

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

The windiest months (with the highest average wind speed) are January and March (4.3mph).
The calmest months (with the lowest average wind speed) are September and October (3.5mph).

Average humidity in August
Trail, OR

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

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (60%).

Average rainfall in August
Trail, OR

Average rainfall in August - Trail, OR
  • Average rainfall in August: 0.28"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in August
Trail, OR

Average rainfall days in August - Trail, OR
  • Average rainfall days in August: 3.1 days

The month with the highest number of rainy days is March (18 days).
The month with the least rainy days is August (3.1 days).

Average snowfall in August
Trail, OR

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

The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Trail, OR

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

The month with the highest number of snowfall days is February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Trail, 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 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in August
Trail, OR

Average sunshine days in August - Trail, OR
  • Average sunshine days in August: 25.9 days

The months with the most sunshine days are July and August (25.9 days).
The month with the least sunshine days is March (10.7 days).

Average UV index in August
Trail, OR

Average UV index in August - Trail, 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).

Average cloud cover in August
Trail, OR

Average cloud cover in August - Trail, OR
  • Average cloud cover in August: 12

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 12).

Average visibility in August
Trail, OR

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

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

Trail, Oregon, USA

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