August weather forecastCreston, WA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Creston, Washington, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 83.3°F (28.5°C).Temperature
Creston sees its peak of temperatures during July and August, with an average high-temperature of 83.3°F (28.5°C).Humidity
With an average relative humidity of 37%, August is the least humid month.Rainfall
The months with the least rainfall are July and August Rain falls for 5.2 days and accumulates 0.31" (8mm) of rain.Snowfall
June through August are months without snowfall.Daylight
In August, the average length of the day is 14h and 13min.On the first day of August, sunrise is at 5:32 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:35 pm PDT.
Sunshine
With an average of 12h of sunshine, August has the most sunshine of the year.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during August translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Creston, WA
- Average high temperature in August: 83.3°F
The warmest months (with the highest average high temperature) are July and August (83.3°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in August: 60.3°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in August
Creston, WA
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in August
Creston, WA
- Average wind speed in August: 6.3mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Creston, WA
- Average humidity in August: 37%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (37%).
Average rainfall in August
Creston, WA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in August
Creston, WA
- Average rainfall days in August: 5.2 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in August
Creston, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (10").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Creston, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (15.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Creston, 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 30min).
- 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 December (Average sunshine: 4h and 6min).
Average sunshine days in August
Creston, WA
- Average sunshine days in August: 23 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (10.2 days).
Average UV index in August
Creston, WA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in August
Creston, WA
- Average cloud cover in August: 13
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in August
Creston, WA
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
