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
The warmest month is August, with an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 50°F (10°C).Humidity
In Chehalis, the average relative humidity in August is 74%.Rainfall
In Chehalis, Washington, it is raining for 6.4 days, with typically 0.55" (14mm) of accumulated precipitation. In Chehalis, during the entire year, the rain falls for 185.5 days and collects up to 36.1" (917mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in August is 14h and 8min.On the first day of August, sunrise is at 5:52 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:53 pm PDT.
Sunshine
The month with the most sunshine in Chehalis is August, with an average of 10.2h of sunshine.UV index
In Chehalis, Washington, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 4 in August interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the warmest month in Chehalis?
What is the temperature in August in Chehalis?
What is the average humidity in August in Chehalis?
How much does it rain in Chehalis in August?
When it does not snow in Chehalis?
What is the average length of the day in August in Chehalis?
When are sunrise and sunset in August in Chehalis?
What month has the most sunshine in Chehalis?
How many hours of sunshine does Chehalis have in August?
What is the UV index intensity in August in Chehalis?
Average temperature in August
Chehalis, WA
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in August: 50°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in August
Chehalis, WA
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in August
Chehalis, WA
- Average wind speed in August: 3.7mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in August
Chehalis, WA
- Average humidity in August: 74%
The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).
Average rainfall in August
Chehalis, WA
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in August
Chehalis, WA
- Average rainfall days in August: 6.4 days
The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in August
Chehalis, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Chehalis, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Chehalis, WA
- Average daylight in August: 14h and 8min
The month with the longest days is June (Average daylight: 15h and 47min).
The month with the shortest days is December (Average daylight: 8h and 38min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in August
Chehalis, WA
- Average sunshine days in August: 20.8 days
The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in August
Chehalis, 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
Chehalis, WA
- Average cloud cover in August: 38
The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in August
Chehalis, 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).
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