August weather forecast
Rowena, OR

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Weather in August

The last month of the summer, August, is also a moderately hot month in Rowena, Oregon, with an average temperature ranging between max 81.3°F (27.4°C) and min 55.8°F (13.2°C).

Temperature

The advent of August signifies a minor shift to an average high-temperature of a still moderately hot 81.3°F (27.4°C), aligning closely with July. Rowena measures a considerable dip from daytime highs with an average low-temperature of 55.8°F (13.2°C) during August.

Heat index

The heat index in August is calculated to be 82.4°F (28°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

July and August, with an average relative humidity of 51%, are the least humid months.

Rainfall

In Rowena, in August, it is raining for 3.2 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, in Rowena, Oregon, there are 133.5 rainfall days, and 16.93" (430mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Rowena, the average length of the day in August is 14h and 4min.
On the first day of August, sunrise is at 5:49 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:44 pm PDT.

Sunshine

In Rowena, the average sunshine in August is 11.9h.

UV index

In Rowena, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the UV index of 5 transforms into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The average high-temperature, in August, in Rowena, is 81.3°F (27.4°C), while the average low-temperature is 55.8°F (13.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in August is calculated to be 82.4°F (28°C).

What are the least humid months?

The months with the lowest humidity are July and August, with an average relative humidity of 51%.

What is the average humidity in August?

In August, the average relative humidity is 51%.

How many days does it rain in August?

In Rowena, during August, the rain falls for 3.2 days and regularly aggregates up to 0.28" (7mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Rowena have in August?

In August, the average day length is 14h and 4min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:49 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:44 pm PDT.

How many hours of sunshine does Rowena have in August?

The average sunshine duration in August is 11.9h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Rowena, OR

Average temperature in August - Rowena, OR
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).

  • Average low temperature in August: 55.8°F

The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).

Average pressure in August
Rowena, OR

Average pressure in August - Rowena, OR
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

Average wind speed in August
Rowena, OR

Average wind speed in August - Rowena, OR
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).

Average humidity in August
Rowena, OR

Average humidity in August - Rowena, OR
  • Average humidity in August: 51%

The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).

Average rainfall in August
Rowena, OR

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

The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in August
Rowena, OR

Average rainfall days in August - Rowena, OR
  • Average rainfall days in August: 3.2 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).

Average snowfall in August
Rowena, OR

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

The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Rowena, OR

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

The month with the highest number of snowfall days is December (4.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Rowena, OR
  • Average daylight in August: 14h and 1min

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 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in August
Rowena, OR

Average sunshine days in August - Rowena, OR
  • Average sunshine days in August: 26.3 days

The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).

Average UV index in August
Rowena, OR

Average UV index in August - Rowena, 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
Rowena, OR

Average cloud cover in August - Rowena, OR
  • Average cloud cover in August: 10

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).

Average visibility in August
Rowena, OR

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

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

Rowena, Oregon, USA

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