Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August notes an average high-temperature of a still hot 86.9°F (30.5°C), subtly differing from July's 87.6°F (30.9°C). Nightly average temperatures in August reveal a significant dip from daytime highs in Cascade Valley, registering a consistent an enjoyable 62.2°F (16.8°C).Humidity
July and August, with an average relative humidity of 36%, are the least humid months.Rainfall
The month with the least rainfall in Cascade Valley is August, when the rain falls for 4.3 days and typically collects 0.2" (5mm) of precipitation.Snowfall
May through August and October are months without snowfall.Daylight
In Cascade Valley, the average length of the day in August is 14h and 10min.On the first day of the month, sunrise is at 5:37 am and sunset at 8:29 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:38 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12h of sunshine.UV index
In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in August?
What are the least humid months?
What is the average humidity in August?
What is the driest month?
How many days does it rain in August?
When it does not snow?
Does it snow in August?
What is the average length of the day in August?
When is the sunrise / sunset in August?
What is the month with the most sunshine?
How long on average sun shines in August in Cascade Valley?
How high is the UV index in August?
Average temperature in August
Cascade Valley, WA
- Average high temperature in August: 86.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in August
Cascade Valley, WA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in August
Cascade Valley, WA
- Average wind speed in August: 6.1mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).
Average humidity in August
Cascade Valley, WA
- Average humidity in August: 36%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in August
Cascade Valley, WA
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in August
Cascade Valley, WA
- Average rainfall days in August: 4.3 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.8 days).
Average snowfall in August
Cascade Valley, WA
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.6").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in August
Cascade Valley, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (6.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Cascade Valley, WA
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
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 month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in August
Cascade Valley, WA
- Average sunshine days in August: 25 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in August
Cascade Valley, WA
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Cascade Valley, WA
- Average cloud cover in August: 11
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in August
Cascade Valley, WA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Cascade Valley, Washington, USA
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