August weather forecastOnion Creek, WA
August
Weather in August
The last month of the summer, August, is another warm month in Onion Creek, Washington, with an average temperature varying between 81.1°F (27.3°C) and 50.5°F (10.3°C).Temperature
August, marked by an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 50.5°F (10.3°C), is the warmest month.Heat index
During August, the heat index is calculated to be 82.4°F (28°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The least humid month is August, with an average relative humidity of 50%.Rainfall
The month with the least rainfall is August, when the rain falls for 6.1 days and typically collects 0.39" (10mm) of precipitation.Snowfall
In Onion Creek, snow does not fall in May through August.Daylight
In Onion Creek, the average length of the day in August is 14h and 18min.On the first day of August in Onion Creek, sunrise is at 5:26 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:34 pm PDT.
Sunshine
With an average of 12h of sunshine, August has the most sunshine of the year in Onion Creek.UV index
The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In August, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Onion Creek, WA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in August: 50.5°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is February (16°F).
Average pressure in August
Onion Creek, WA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in August
Onion Creek, WA
- Average wind speed in August: 3.4mph
The windiest month (with the highest average wind speed) is April (3.9mph).
The calmest months (with the lowest average wind speed) are January, February and December (3mph).
Average humidity in August
Onion Creek, WA
- Average humidity in August: 50%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (50%).
Average rainfall in August
Onion Creek, WA
- Average rainfall in August: 0.39"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in August
Onion Creek, WA
- Average rainfall days in August: 6.1 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in August
Onion Creek, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (6.61").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Onion Creek, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Onion Creek, WA
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Onion Creek, WA
- Average sunshine days in August: 20.8 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is March (9 days).
Average UV index in August
Onion Creek, WA
- Average UV index in August: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Onion Creek, WA
- Average cloud cover in August: 14
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in August
Onion Creek, WA
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
