August weather forecast
Ellensburg, WA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Ellensburg, Washington, with an average temperature ranging between max 82°F (27.8°C) and min 55.2°F (12.9°C).

Temperature

July and August, with an average high-temperature of 82°F (27.8°C), are marked as the warmest months.

Heat index

During August, the heat index is calculated to be 82.4°F (28°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Consider that heat index readings are for situations in the shade and light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 46%.

Rainfall

In Ellensburg, in August, during 2.8 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, in Ellensburg, Washington, there are 99.9 rainfall days, and 8.66" (220mm) of precipitation is accumulated.

Snowfall

May through August are months without snowfall in Ellensburg.

Daylight

The average length of the day in August is 14h and 10min.
On the first day of August in Ellensburg, sunrise is at 5:42 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:43 pm PDT.

Sunshine

July and August, with an average of 12h of sunshine, are months with the most sunshine.

UV index

The average daily maximum UV index in August in Ellensburg is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the UV index of 5 transforms into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Ellensburg?

The peak of Ellensburg's temperatures is noted during July and August, averaging a high-temperature of 82°F (27.8°C).

What is the temperature in August in Ellensburg?

The average high-temperature and low-temperature during August are 82°F (27.8°C) and 55.2°F (12.9°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 82.4°F (28°C).

What is the least humid month in Ellensburg?

July and August, with an average relative humidity of 46%, are the least humid months in Ellensburg.

What is the average humidity in August in Ellensburg?

In Ellensburg, the average relative humidity in August is 46%.

How much does it rain in Ellensburg in August?

In Ellensburg, Washington, in August, it is raining for 2.8 days, with typically 0.24" (6mm) of accumulated precipitation.

When it does not snow in Ellensburg?

May through August are months without snowfall in Ellensburg, Washington.

Does it snow in Ellensburg in August?

In Ellensburg, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Ellensburg have in August?

The average day length in August in Ellensburg is 14h and 10min.

What time are sunrise and sunset in August in Ellensburg?

In August, on the first day of the month, sunrise is at 5:42 am and sunset at 8:34 pm. On the last day of the month, in Ellensburg, Washington, sunrise is at 6:21 am and sunset at 7:43 pm PDT.

What are the months with the most sunshine in Ellensburg?

The months with the most sunshine are July and August, with an average of 12h of sunshine.

How long on average sun shines in August in Ellensburg?

In Ellensburg, Washington, the average sunshine duration in August is 12h.

What is the UV index intensity in August in Ellensburg?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
Ellensburg, WA

Average temperature in August - Ellensburg, WA
  • Average high temperature in August: 82°F

The warmest months (with the highest average high temperature) are July and August (82°F).
The month with the lowest average high temperature is December (33.3°F).

  • Average low temperature in August: 55.2°F

The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).

Average pressure in August
Ellensburg, WA

Average pressure in August - Ellensburg, WA
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).

Average wind speed in August
Ellensburg, WA

Average wind speed in August - Ellensburg, WA
  • Average wind speed in August: 8.3mph

The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).

Average humidity in August
Ellensburg, WA

Average humidity in August - Ellensburg, WA
  • Average humidity in August: 46%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (46%).

Average rainfall in August
Ellensburg, WA

Average rainfall in August - Ellensburg, WA
  • Average rainfall in August: 0.24"

The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in August
Ellensburg, WA

Average rainfall days in August - Ellensburg, WA
  • Average rainfall days in August: 2.8 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (2.8 days).

Average snowfall in August
Ellensburg, WA

Average snowfall in August - Ellensburg, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in August
Ellensburg, WA

Average snowfall days in August - Ellensburg, WA
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and December (8.7 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Ellensburg, WA

Average daylight in August / Average sunshine in August - Ellensburg, WA
  • Average daylight in August: 14h and 1min

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

  • Average sunshine in August: 12h and 0min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).

Average sunshine days in August
Ellensburg, WA

Average sunshine days in August - Ellensburg, WA
  • Average sunshine days in August: 26.8 days

The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (13.5 days).

Average UV index in August
Ellensburg, WA

Average UV index in August - Ellensburg, WA
  • 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, March, November and December (UV index 2).

Average cloud cover in August
Ellensburg, WA

Average cloud cover in August - Ellensburg, WA
  • Average cloud cover in August: 11

The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in August
Ellensburg, WA

Average visibility in August - Ellensburg, WA
  • 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 and December (4mi).

Ellensburg, Washington, USA

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