July weather forecastZillah, WA
July
Weather in July
July is a tropical summer month in Zillah, Washington, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 86.5°F (30.3°C).Temperature
Zillah's warmest weather arrives in July, when temperatures average a high of 86.5°F (30.3°C) and a low of 60.3°F (15.7°C).Humidity
With an average relative humidity of 38%, July is the least humid month.Rainfall
July is the month with the least rainfall. Rain falls for 3.5 days and accumulates 0.16" (4mm) of precipitation.Snowfall
April through August and October are months without snowfall.Daylight
In Zillah, Washington, the average length of the day in July is 15h and 22min.On the first day of July, sunrise is at 5:13 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:32 pm PDT.
Sunshine
July and August, with an average of 12.1h of sunshine, are months with the most sunshine in Zillah.UV index
The month with the highest UV index in Zillah is July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 7 during July leads to these instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Zillah, WA
- Average high temperature in July: 86.5°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 July: 60.3°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 July
Zillah, WA
- Average pressure in July: 29.95"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 July
Zillah, WA
- Average wind speed in July: 6.5mph
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 July
Zillah, WA
- Average humidity in July: 38%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (38%).
Average rainfall in July
Zillah, WA
- Average rainfall in July: 0.16"
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 July
Zillah, WA
- Average rainfall days in July: 3.5 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 July
Zillah, WA
- Average snowfall in July: 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 July
Zillah, WA
- Average snowfall days in July: 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 July /
Average sunshine in July
Zillah, WA
- Average daylight in July: 15h and 24min
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 July: 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 July
Zillah, WA
- Average sunshine days in July: 25.8 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 July
Zillah, WA
- Average UV index in July: 7
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 July
Zillah, WA
- Average cloud cover in July: 9
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 July
Zillah, WA
- Average visibility in July: 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).





