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, with an average high of 76.5°F (24.7°C) and a low of 49.8°F (9.9°C), signifies the warmest month of the year.Humidity
The average relative humidity in August is 76%.Rainfall
August is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.24" (6mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Cathlamet, the average length of the day in August is 14h and 6min.On the first day of August in Cathlamet, sunrise is at 5:56 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:53 pm PDT.
Sunshine
With an average of 10h of sunshine, August has the most sunshine of the year.UV index
The average daily maximum UV index in August in Cathlamet, Washington, is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 in August translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To guard against the harmful effects of the Sun, minimize exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Cathlamet?
What is the average August temperature in Cathlamet?
What is the average humidity in August in Cathlamet?
What is the driest month in Cathlamet?
How many days does it rain in August in Cathlamet?
When it does not snow in Cathlamet?
What is the average length of the day in August in Cathlamet?
When are sunrise and sunset in August in Cathlamet?
What month has the most sunshine in Cathlamet?
How many hours of sunshine does Cathlamet have in August?
What is the UV index intensity in August in Cathlamet?
Average temperature in August
Cathlamet, WA
- Average high temperature in August: 76.5°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in August: 49.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in August
Cathlamet, WA
- Average pressure in August: 30.02"Hg
The months with the highest atmospheric pressure are January and December (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in August
Cathlamet, WA
- Average wind speed in August: 3.9mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in August
Cathlamet, WA
- Average humidity in August: 76%
The months with the highest relative humidity are February, November and December (89%).
The month with the lowest relative humidity is July (75%).
Average rainfall in August
Cathlamet, WA
- Average rainfall in August: 0.24"
The wettest month (with the highest rainfall) is January (1.77").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in August
Cathlamet, WA
- Average rainfall days in August: 4.7 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (4.7 days).
Average snowfall in August
Cathlamet, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Cathlamet, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.8 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
Cathlamet, WA
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in August
Cathlamet, WA
- Average sunshine days in August: 24.6 days
The month with the most sunshine days is August (24.6 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in August
Cathlamet, WA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Cathlamet, WA
- Average cloud cover in August: 42
The months with the most cloud cover are February and March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in August
Cathlamet, WA
- Average visibility in August: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Cathlamet, Washington, USA
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