August weather forecastSnoqualmie Pass, WA
August
Weather in August
August weather in Snoqualmie Pass carries forward the dominion of summer, closely resembling the pattern of July. It continues the trend of high temperatures, sustained sunshine and negligible snowfall. The city doesn't lose its summer flair, hosting numerous outdoor activities under the clear blue skies. However, the last leg of the month experiences a slight dip in temperatures, forecasting the arrival of fall. By the end of August, the sun starts to retreat, paving the way for shorter days and lower temperatures.Temperature
Snoqualmie Pass records the warmest temperatures in August, averaging a high of 71.2°F (21.8°C) and a low of 45°F (7.2°C).Humidity
In Snoqualmie Pass, the average relative humidity in August is 70%.Rainfall
In August, the rain falls for 7.2 days. Throughout August, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 127.9 rainfall days, and 28.58" (726mm) of precipitation is accumulated.Snowfall
July and August are months without snowfall.Daylight
The average length of the day in August is 14h and 11min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:38 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:47 pm PDT.
Sunshine
With an average of 10.9h of sunshine, August has the most sunshine of the year in Snoqualmie Pass.UV index
In Snoqualmie Pass, the average daily maximum UV index in August is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during August translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Snoqualmie Pass, WA
- Average high temperature in August: 71.2°F
The warmest month (with the highest average high temperature) is August (71.2°F).
The month with the lowest average high temperature is December (30.2°F).
- Average low temperature in August: 45°F
The month with the highest average low temperature is August (45°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in August
Snoqualmie Pass, WA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in August
Snoqualmie Pass, WA
- Average wind speed in August: 4.2mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in August
Snoqualmie Pass, WA
- Average humidity in August: 70%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is July (69%).
Average rainfall in August
Snoqualmie Pass, WA
- Average rainfall in August: 0.59"
The wettest month (with the highest rainfall) is January (4.21").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in August
Snoqualmie Pass, WA
- Average rainfall days in August: 7.2 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in August
Snoqualmie Pass, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (27.72").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Snoqualmie Pass, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Snoqualmie Pass, WA
- Average daylight in August: 14h and 12min
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 30min).
- Average sunshine in August: 10h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 0min).
Average sunshine days in August
Snoqualmie Pass, WA
- Average sunshine days in August: 20.2 days
The month with the most sunshine days is August (20.2 days).
The month with the least sunshine days is February (6 days).
Average UV index in August
Snoqualmie Pass, WA
- Average UV index in August: 3
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 1).
Average cloud cover in August
Snoqualmie Pass, WA
- Average cloud cover in August: 30
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Snoqualmie Pass, WA
- Average visibility in August: 5mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March and December (3mi).
