August weather forecast
Lebanon, OR

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Weather in August

August continues to showcase the peak summer weather in Lebanon. The average high temperature rises slightly, registering a pinnacle at 81.1°F (27.3°C). Although the moisture content increases slightly with an increment to 0.31" (8mm) of rainfall, the weather remains predominantly dry and hot. The increased evaporation causes a slight decline in relative humidity indicating drier atmospheric conditions. Hence, Lebanon sustains its hot and arid summer landscape well into August.

Temperature

August, with an average high of 81.1°F (27.3°C) and a low of 51.8°F (11°C), signifies the warmest month of the year.

Heat index

In August, the average heat index is computed to be 84.2°F (29°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

The least humid month in Lebanon, Oregon, is August, with an average relative humidity of 66%.

Rainfall

In August, in Lebanon, Oregon, the rain falls for 3.8 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in Lebanon, there are 163.3 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August in Lebanon is 13h and 59min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:49 pm PDT.

Sunshine

With an average of 11.2h of sunshine, August has the most sunshine of the year in Lebanon.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 in August translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What part of the year is the hottest in Lebanon?

August is the month when Lebanon experiences its warmest temperatures, averaging a high of 81.1°F (27.3°C) and a low of 51.8°F (11°C).

What are the temperatures in Lebanon in August?

In August, the average high-temperature and low-temperature in Lebanon are 81.1°F (27.3°C) and 51.8°F (11°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 84.2°F (29°C).

What is the least humid month in Lebanon?

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

What is the average humidity in August in Lebanon?

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

How many days does it rain in August in Lebanon?

In August, the rain falls for 3.8 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow in Lebanon?

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

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

In Lebanon, the average day length in August is 13h and 59min.

When are sunrise and sunset in August in Lebanon?

On the first day of August, sunrise is at 5:59 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:49 pm PDT.

What month has the most sunshine in Lebanon?

August has the most sunshine of the year in Lebanon, with an average of 11.2h of sunshine.

How long on average sun shines in August in Lebanon?

In August, the average sunshine duration in Lebanon, Oregon, is 11.2h.

How high is the UV index in August in Lebanon?

In Lebanon, Oregon, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Lebanon, OR

Average temperature in August - Lebanon, OR
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).

  • Average low temperature in August: 51.8°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in August
Lebanon, OR

Average pressure in August - Lebanon, OR
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in August
Lebanon, OR

Average wind speed in August - Lebanon, OR
  • Average wind speed in August: 3.9mph

The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in August
Lebanon, OR

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

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

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Average rainfall in August
Lebanon, OR

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

The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in August
Lebanon, OR

Average rainfall days in August - Lebanon, OR
  • Average rainfall days in August: 3.8 days

The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).

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Average snowfall in August
Lebanon, OR

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

The month with the highest snowfall is February (2.13").
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
Lebanon, OR

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

The month with the highest number of snowfall days is February (2.5 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
Lebanon, OR

Average daylight in August / Average sunshine in August - Lebanon, 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 1min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in August
Lebanon, OR

Average sunshine days in August - Lebanon, OR
  • Average sunshine days in August: 25.3 days

The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).

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Average UV index in August
Lebanon, OR

Average UV index in August - Lebanon, 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).

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Average cloud cover in August
Lebanon, OR

Average cloud cover in August - Lebanon, OR
  • Average cloud cover in August: 20

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in August
Lebanon, OR

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

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

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Lebanon, Oregon, USA

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