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United StatesThe weather in August in Mount Rainier National Park
It's warm in August in Mount Rainier National Park with an average temperature of 25°C. Temperatures this month range from a low of 20°C to a high of 27°C. At night, you can expect temperatures between 11°C and 14°C.
Looking for great weather? August is a good time to be in Mount Rainier National Park. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Mount Rainier National Park, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2023, Mount Rainier National Park reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 13°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 22°C.
Rainfall amount
In August, there is an average of 61 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in August for Mount Rainier National Park
Click on any day in August to get detailed info about the usual weather on that day in Mount Rainier National Park. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Mount Rainier National Park | New York | |
|---|---|---|
| Average temperature | 25°C | 30°C |
| Max. temperature | 27°C | 31°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 61 mm | 79 mm |
| Rainy days | 8 days | 13 days |
Start of August
The month of August starts in Mount Rainier National Park with warm temps, averaging around 26°C during the day and nights around 14°C.
Mid August
By mid-August, daytime temps stay steady at around 26°C, with nights around 14°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of August
By the end of August, the average daytime temperature in Mount Rainier National Park is around 24°C, while nighttime temps are about 12°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Temperature charts
These charts show the average temperatures in August in Mount Rainier National Park, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Mount Rainier National Park
Temperature in August in Mount Rainier National Park over the years
Precipitation charts
These charts show the average amount of precipitation in August in Mount Rainier National Park, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Mount Rainier National Park
Total precipitation in August in Mount Rainier National Park over the years
Daily UV index in August in Mount Rainier National Park
This chart shows the average daily UV index in August in Mount Rainier National Park, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Mount Rainier National Park
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Average weather in Mount Rainier National Park by month
Click on a month below to see detailed weather info for Mount Rainier National Park. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.