August weather forecast
Milwaukie, OR

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Weather in August

August in Milwaukie maintains July's warmth, with temperatures peaking at an average high of 81.7°F (27.6°C). Intense sunlight prevails, an outcome of the decreased cloud cover, coupled with an impressive 11 hours of sunshine. August experiences minimal rainfall, contributing to the sustained dry conditions characteristic of the city's summer. Despite the prevailing heat, Milwaukie's summer charm is accentuated by long daylight hours and comfortable, balmy nights.

Temperature

August, known for its average high temperature of 81.7°F (27.6°C) and an average low temperature of 54.5°F (12.5°C), is the warmest month.

Heat index

Throughout August, the heat index is evaluated at 84.2°F (29°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

With an average relative humidity of 63%, August is the least humid month.

Rainfall

In Milwaukie, in August, it is raining for 5 days, with typically 0.35" (9mm) of accumulated precipitation. In Milwaukie, during the entire year, the rain falls for 172.2 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Milwaukie, the average length of the day in August is 14h and 3min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:37 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:49 pm PDT.

Sunshine

August has the most sunshine of the year, with an average of 11h 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 ordinary individuals.
Note: The maximum UV index, 5 during August, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

August, with its average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 54.5°F (12.5°C), holds the record as the warmest month.

What is the average August temperature?

In August, the average high-temperature and low-temperature are 81.7°F (27.6°C) and 54.5°F (12.5°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 84.2°F (29°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 63%.

What is the average humidity in August?

In Milwaukie, the average relative humidity in August is 63%.

How much does it rain in August?

In Milwaukie, during August, the rain falls for 5 days and regularly aggregates up to 0.35" (9mm) of precipitation.

When it does not snow?

April through October are months without snowfall in Milwaukie.

What is the average length of the day in August?

In August, the average day length is 14h and 3min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:49 pm PDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 11h of sunshine.

How many hours of sunshine does Milwaukie have in August?

The average sunshine duration in August is 11h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Milwaukie, OR

Average temperature in August - Milwaukie, OR
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in August: 54.5°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

Average pressure in August
Milwaukie, OR

Average pressure in August - Milwaukie, 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).

Average wind speed in August
Milwaukie, OR

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

The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in August
Milwaukie, OR

Average humidity in August - Milwaukie, OR
  • Average humidity in August: 63%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (63%).

Average rainfall in August
Milwaukie, OR

Average rainfall in August - Milwaukie, OR
  • Average rainfall in August: 0.35"

The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in August
Milwaukie, OR

Average rainfall days in August - Milwaukie, OR
  • Average rainfall days in August: 5 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is July (4.8 days).

Average snowfall in August
Milwaukie, OR

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

The month with the highest snowfall is March (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Milwaukie, OR

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 11h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in August
Milwaukie, OR

Average sunshine days in August - Milwaukie, OR
  • Average sunshine days in August: 23.8 days

The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.3 days).

Average UV index in August
Milwaukie, OR

Average UV index in August - Milwaukie, 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
Milwaukie, OR

Average cloud cover in August - Milwaukie, OR
  • Average cloud cover in August: 22

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in August
Milwaukie, OR

Average visibility in August - Milwaukie, 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).

Milwaukie, Oregon, USA

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