Climate and monthly weather forecast
Zillah, WA

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Weather in January

January, like December, in Zillah, Washington, is another cold winter month, with an average temperature fluctuating between 37.2°F (2.9°C) and 27°F (-2.8°C). Zillah experiences an average high-temperature of a still icy 37.2°F (2.9°C) in January, subtly different from December's 36.7°F (2.6°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Zillah, Washington, with temperature in the range of an average low of 29.8°F (-1.2°C) and an average high of 42.3°F (5.7°C). February's average high-temperature stands at a still wintry 42.3°F (5.7°C), showing little deviation from January's 37.2°F (2.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Zillah, Washington, with an average temperature ranging between max 50.4°F (10.2°C) and min 34.9°F (1.6°C). March's arrival brings a modest temperature shift, moving from a cold 42.3°F (5.7°C) in February to a fresh 50.4°F (10.2°C). Weather in March »

Weather in April

April is a mild spring month in Zillah, Washington, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 59.5°F (15.3°C). April's arrival coincides with a rise in the average high-temperature, moving from March's cool 50.4°F (10.2°C) to a refreshing 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in Zillah, is a pleasant month, with an average temperature varying between 69.4°F (20.8°C) and 47.8°F (8.8°C). May comes with an increase, with the average high-temperature moving from a moderate 59.5°F (15.3°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »

Weather in June

June, the first month of the summer in Zillah, is a warm month, with an average temperature fluctuating between 76.6°F (24.8°C) and 53.2°F (11.8°C). With the onset of June, Zillah's weather sees a minor temperature rise, transitioning from an agreeable 69.4°F (20.8°C) in May to a warm 76.6°F (24.8°C). Weather in June »

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). 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). Weather in July »

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). 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). Weather in August »

Weather in September

September, the first month of the autumn in Zillah, is still a warm month, with an average temperature fluctuating between 75.6°F (24.2°C) and 54.3°F (12.4°C). The commencement of September involves a temperature shift, with the average high-temperature dropping from a tropical 86.2°F (30.1°C) in August to a moderately hot 75.6°F (24.2°C). Weather in September »

Weather in October

October, the same as September, in Zillah, Washington, is another refreshing autumn month, with an average temperature varying between 43.7°F (6.5°C) and 60.1°F (15.6°C). The shift into October is characterized by a noticeable reduction in the average high-temperature, decreasing from September's warm 75.6°F (24.2°C) to a moderate 60.1°F (15.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Zillah, Washington, with an average temperature fluctuating between 46.8°F (8.2°C) and 33.4°F (0.8°C). The average high-temperature decreases in November, shifting from a refreshing 60.1°F (15.6°C) in October to a frosty 46.8°F (8.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Zillah, Washington, with an average temperature ranging between max 36.7°F (2.6°C) and min 25.7°F (-3.5°C). December is the month that records the lowest temperatures, with averages ranging from a high of 36.7°F (2.6°C) to a low of 25.7°F (-3.5°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month in Zillah?

The most humid month is January, with an average relative humidity of 82%.

What is the rainiest month in Zillah?

January is the month with the most rainfall in Zillah. Rain falls for 10.2 days and accumulates 1.02" (26mm) of precipitation.

How much does it rain in Zillah?

In Zillah, Washington, during the entire year, the rain falls for 98.5 days and collects up to 6.97" (177mm) of precipitation.

When does it snow in Zillah?

Months with snowfall in Zillah, Washington, are January through March, September, November and December.

How much does it snow in Zillah?

In Zillah, Washington, during the entire year, snow falls for 17.1 days and aggregates up to 6.69" (170mm) of snow.

What is the month with the least sunshine in Zillah?

January has the least sunshine of the year, with an average of 5.5h of sunshine.

What are the months with the lowest UV index in Zillah?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most in Zillah?

February is the month with the most snowfall in Zillah. Snow falls for 4.7 days and accumulates 2.4" (61mm) of snow.

When is Daylight Saving Time (DST) in Zillah?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Zillah?

April through August and October are months without snowfall in Zillah, Washington.

When are the longest days in Zillah?

With an average of 15h and 42min of daylight, June has the longest days of the year in Zillah.

What are the warmest months in Zillah?

Zillah's temperatures tend to reach their peak averages in July, with a high of 86.5°F (30.3°C) and a low of 60.3°F (15.7°C).

What is the least humid month in Zillah?

With an average relative humidity of 38%, July is the least humid month in Zillah, Washington.

What is the driest month in Zillah?

July is the month with the least rainfall in Zillah, Washington. Rain falls for 3.5 days and accumulates 0.16" (4mm) of precipitation.

What is the month with the most sunshine in Zillah?

July and August, with an average of 12.1h of sunshine, are months with the most sunshine in Zillah, Washington.

What is the month with the highest UV index in Zillah?

The month with the highest UV index is July, with an average maximum UV index of 7.

What are the coldest months in Zillah?

December is the coldest month, with an average high-temperature of 36.7°F (2.6°C) and an average low-temperature of 25.7°F (-3.5°C).

What is the month with the shortest days in Zillah?

With an average of 8h and 42min of daylight, December has the shortest days of the year in Zillah, Washington.

Average temperature
Zillah, WA

Average temperature - Zillah, WA

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).

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
Zillah, WA

Average pressure - Zillah, WA

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
Zillah, WA

Average wind speed - Zillah, WA

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 rainfall
Zillah, WA

Average rainfall - Zillah, WA

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
Zillah, WA

Average rainfall days - Zillah, WA

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
Zillah, WA

Average snowfall - Zillah, WA

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
Zillah, WA

Average snowfall days - Zillah, WA

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 / Average sunshine
Zillah, WA

Average daylight / Average sunshine - Zillah, WA

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).

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
Zillah, WA

Average sunshine days - Zillah, WA

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
Zillah, WA

Average UV index - Zillah, WA

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 visibility
Zillah, WA

Average visibility - Zillah, WA

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).

Zillah, Washington, USA

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