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
Temperature readings reach their annual highs in August, averaging 70.7°F (21.5°C) and a minimum average of 51.4°F (10.8°C).Humidity
In Menlo, the average relative humidity in August is 81%.Rainfall
July and August are months with the least rain when the rain falls for 4.1 days and typically aggregates up to 0.16" (4mm) of rain.Snowfall
April through October and December are months without snowfall.Daylight
In August, the average length of the day is 14h and 8min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:45 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:54 pm PDT.
Sunshine
In August, the average sunshine is 9.7h.UV index
In August, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 4 during August translates into the following guidance:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What are the temperatures in August?
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?
What is the average length of the day in August?
When are sunrise and sunset in August?
How long on average sun shines in August?
What is the UV index reading in August?
Average temperature in August
Menlo, WA
- Average high temperature in August: 70.7°F
The warmest month (with the highest average high temperature) is August (70.7°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in August: 51.4°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (36.3°F).
Average pressure in August
Menlo, WA
- Average pressure in August: 30.03"Hg
The months with the highest atmospheric pressure are January, April and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in August
Menlo, WA
- Average wind speed in August: 4.6mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in August
Menlo, WA
- Average humidity in August: 81%
The months with the highest relative humidity are November and December (88%).
The months with the lowest relative humidity are June and July (80%).
Average rainfall in August
Menlo, WA
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is December (1.46").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in August
Menlo, WA
- Average rainfall days in August: 4.1 days
The months with the highest number of rainy days are March and December (14.4 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in August
Menlo, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in August
Menlo, WA
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (1.1 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
Menlo, 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: 9h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Menlo, WA
- Average sunshine days in August: 22.9 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in August
Menlo, WA
- Average UV index in August: 4
The month with the highest UV index is 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
Menlo, WA
- Average cloud cover in August: 41
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in August
Menlo, WA
- Average visibility in August: 4mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (5mi).
The months with the lowest visibility are July, August and September (4mi).
Menlo, Washington, USA
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