August weather forecastZillah, WA
August
Weather in August
The last month of the summer, August, is also a hot month in Zillah, Washington, with an average temperature ranging between max 86.2°F (30.1°C) and min 60.8°F (16°C).Temperature
Zillah's weather in August displays an average high-temperature of a still tropical 86.2°F (30.1°C), showing minor disparity from July's 86.5°F (30.3°C). August nights show a substantial disparity from the daytime peak with an average low-temperature of 60.8°F (16°C).Humidity
In Zillah, Washington, the average relative humidity in August is 39%.Rainfall
In Zillah, during August, the rain falls for 4.2 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Zillah, during the entire year, the rain falls for 98.5 days and collects up to 6.97" (177mm) of precipitation.Snowfall
April through August and October are months without snowfall.Daylight
In Zillah, the average length of the day in August is 14h and 7min.On the first day of August in Zillah, sunrise is at 5:43 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:41 pm PDT.
Sunshine
July and August, with an average of 12.1h of sunshine, are months with the most sunshine.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 5 in August suggests the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Zillah, WA
- Average high temperature in August: 86.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (36.7°F).
- Average low temperature in August: 60.8°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure in August
Zillah, WA
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in August
Zillah, WA
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in August
Zillah, WA
- Average humidity in August: 39%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (38%).
Average rainfall in August
Zillah, WA
- Average rainfall in August: 0.28"
The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in August
Zillah, WA
- Average rainfall days in August: 4.2 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in August
Zillah, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in August
Zillah, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Zillah, WA
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 12h and 6min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in August
Zillah, WA
- Average sunshine days in August: 24.2 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in August
Zillah, 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, November and December (UV index 2).
Average cloud cover in August
Zillah, WA
- Average cloud cover in August: 10
The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in August
Zillah, WA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
