August weather forecastOkanogan, WA
August
Weather in August
August, the last month of the summer in Okanogan, is also a moderately hot month, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 55°F (12.8°C).Temperature
Okanogan, Washington, observes a minor difference in average high-temperatures between July's 82.6°F (28.1°C) and August's 82.4°F (28°C). August nights in Okanogan are characterized by a significant departure from the daytime highs, dropping to an average temperature of 55°F (12.8°C).Heat index
In August, the heat index is evaluated at 82.4°F (28°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
July and August, with an average relative humidity of 42%, are the least humid months in Okanogan.Rainfall
July and August are months with the least rain in Okanogan, Washington, when the rain falls for 2.8 days and typically aggregates up to 0.2" (5mm) of rain.Snowfall
May through October are months without snowfall in Okanogan.Daylight
In August, the average length of the day is 14h and 16min.On the first day of August in Okanogan, sunrise is at 5:34 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:41 pm PDT.
Sunshine
The months with the most sunshine in Okanogan are July and August, with an average of 12h of sunshine.UV index
In Okanogan, Washington, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 5 in August leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Okanogan, WA
- Average high temperature in August: 82.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in August
Okanogan, WA
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in August
Okanogan, WA
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in August
Okanogan, WA
- Average humidity in August: 42%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).
Average rainfall in August
Okanogan, WA
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in August
Okanogan, WA
- Average rainfall days in August: 2.8 days
The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in August
Okanogan, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Okanogan, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Okanogan, WA
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in August
Okanogan, WA
- Average sunshine days in August: 26.3 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).
Average UV index in August
Okanogan, WA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in August
Okanogan, WA
- Average cloud cover in August: 12
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in August
Okanogan, WA
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).





