August weather forecastMarcus, WA
August
Weather in August
The last month of the summer, August, is another warm month in Marcus, Washington, with an average temperature fluctuating between 50.5°F (10.3°C) and 81.1°F (27.3°C).Temperature
Marcus's August weather, marked by an average high temperature of 81.1°F (27.3°C) and an average low temperature of 50.5°F (10.3°C), is the warmest in the year.Heat index
Throughout August, the heat index is calculated to be 82.4°F (28°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
With an average relative humidity of 50%, August is the least humid month in Marcus.Rainfall
The month with the least rainfall in Marcus is August, when the rain falls for 6.1 days and typically collects 0.39" (10mm) of precipitation.Snowfall
May through August are months without snowfall in Marcus, Washington.Daylight
In Marcus, the average length of the day in August is 14h and 17min.On the first day of August in Marcus, sunrise is at 5:27 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:35 pm PDT.
Sunshine
August has the most sunshine of the year, with an average of 12h of sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 4 in August translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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 24min).
- 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
Marcus, 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
Marcus, 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
Marcus, 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
Marcus, 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).





