August weather forecastNelson, WA
August
Weather in August
The last month of the summer, August, is another warm month in Nelson, Washington, with an average temperature ranging between min 47.8°F (8.8°C) and max 75.4°F (24.1°C).Temperature
During the warmest month, August, temperatures average a high of 75.4°F (24.1°C) and a low of 47.8°F (8.8°C).Humidity
July and August, with an average relative humidity of 60%, are the least humid months in Nelson.Rainfall
In Nelson, in August, during 5.5 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Nelson, Washington, during the entire year, the rain falls for 161.2 days and collects up to 28.46" (723mm) of precipitation.Snowfall
In Nelson, snow does not fall in June through August.Daylight
The average length of the day in August in Nelson, Washington, is 14h and 10min.On the first day of August, sunrise is at 5:44 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:45 pm PDT.
Sunshine
With an average of 11.9h of sunshine, August has the most sunshine of the year.UV index
In Nelson, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During August, 4 as the daily maximum UV index converts into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Nelson, WA
- Average high temperature in August: 75.4°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in August: 47.8°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (18.3°F).
Average pressure in August
Nelson, WA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in August
Nelson, WA
- Average wind speed in August: 6.1mph
The windiest month (with the highest average wind speed) is June (6.7mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in August
Nelson, WA
- Average humidity in August: 60%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (60%).
Average rainfall in August
Nelson, WA
- Average rainfall in August: 0.51"
The wettest month (with the highest rainfall) is January (4.41").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in August
Nelson, WA
- Average rainfall days in August: 5.5 days
The months with the highest number of rainy days are March and April (18.3 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in August
Nelson, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (16.3").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Nelson, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Nelson, 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 36min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Nelson, WA
- Average sunshine days in August: 22.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in August
Nelson, 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 1).
Average cloud cover in August
Nelson, WA
- Average cloud cover in August: 18
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in August
Nelson, 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 (3mi).





