August weather forecastGalvin, WA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Galvin, Washington, with an average temperature fluctuating between 49.8°F (9.9°C) and 77.4°F (25.2°C).Temperature
With its high average temperature of 77.4°F (25.2°C) and a low of 49.8°F (9.9°C), August is regarded as the warmest month.Humidity
In Galvin, Washington, the average relative humidity in August is 74%.Rainfall
In Galvin, in August, during 5.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, in Galvin, there are 168 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
In Galvin, snow does not fall in April through October.Daylight
In Galvin, the average length of the day in August is 14h and 8min.On the first day of August, sunrise is at 5:53 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:52 pm PDT.
Sunshine
August has the most sunshine of the year in Galvin, Washington, with an average of 10.1h of sunshine.UV index
In August, the average daily maximum UV index in Galvin is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 4 in August translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Galvin, WA
- Average high temperature in August: 77.4°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in August: 49.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in August
Galvin, WA
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in August
Galvin, WA
- Average wind speed in August: 3.8mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in August
Galvin, WA
- Average humidity in August: 74%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in August
Galvin, WA
- Average rainfall in August: 0.39"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in August
Galvin, WA
- Average rainfall days in August: 5.6 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in August
Galvin, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Galvin, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Galvin, WA
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in August
Galvin, WA
- Average sunshine days in August: 20.9 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in August
Galvin, WA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Galvin, WA
- Average cloud cover in August: 38
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in August
Galvin, WA
- Average visibility in August: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).





