Climate and monthly weather forecast
Cowiche, WA

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Weather in January

January, the same as December, is a wintry winter month in Cowiche, Washington, with an average temperature varying between 25.5°F (-3.6°C) and 36.1°F (2.3°C). Cowiche, Washington, notes an average high-temperature of a still wintry 36.1°F (2.3°C) in January, hardly diverging from December. Weather in January »

Weather in February

February, the last month of the winter in Cowiche, is also a wintry month, with an average temperature varying between 28°F (-2.2°C) and 40.6°F (4.8°C). As January transitions into February, the average high-temperature rests at a still icy 40.6°F (4.8°C), maintaining a close resemblance to the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Cowiche, Washington, with temperature in the range of an average high of 48.6°F (9.2°C) and an average low of 33.4°F (0.8°C). March sees a marginal temperature increase, moving from a cold 40.6°F (4.8°C) in February to a chilly 48.6°F (9.2°C). Weather in March »

Weather in April

April is a mild spring month in Cowiche, Washington, with an average temperature ranging between min 38.7°F (3.7°C) and max 57.4°F (14.1°C). The beginning of April signals a minor rise in the average high-temperature, moving from a chilly 48.6°F (9.2°C) in March to a moderate 57.4°F (14.1°C). Weather in April »

Weather in May

May, the last month of the spring in Cowiche, is an enjoyable month, with an average temperature ranging between min 46.2°F (7.9°C) and max 67.8°F (19.9°C). May witnesses an increase in the average high-temperature, moving from 57.4°F (14.1°C) in April to a still refreshing 67.8°F (19.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Cowiche, Washington, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 51.3°F (10.7°C). Cowiche's weather shows a minor temperature rise with the arrival of June, moving from an enjoyable 67.8°F (19.9°C) in May to a warm 74.8°F (23.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Cowiche, Washington, with an average temperature fluctuating between 84.7°F (29.3°C) and 57.7°F (14.3°C). July brings a temperature change, with average high-temperatures moving from June's warm 74.8°F (23.8°C) to a still moderately hot 84.7°F (29.3°C). Weather in July »

Weather in August

August, the last month of the summer in Cowiche, is another warm month, with an average temperature varying between 85.1°F (29.5°C) and 58.8°F (14.9°C). Cowiche's August weather, with an average high temperature of 85.1°F (29.5°C) and an average low temperature of 58.8°F (14.9°C), tends to be the warmest of the year. August's average heat index is calculated to be 84.2°F (29°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Cowiche, Washington, with an average temperature fluctuating between 74.1°F (23.4°C) and 51.8°F (11°C). Cowiche's September weather comes with a decrease in average high-temperatures, moving from 85.1°F (29.5°C) in August to a still moderately hot 74.1°F (23.4°C). Weather in September »

Weather in October

October, the same as September, in Cowiche, Washington, is another mild autumn month, with temperature in the range of an average high of 59.2°F (15.1°C) and an average low of 41.7°F (5.4°C). The onset of October marks a clear decrease in the average high-temperature, dropping from a moderately hot 74.1°F (23.4°C) in September to a refreshing 59.2°F (15.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Cowiche, is another chilly month, with an average temperature fluctuating between 45.5°F (7.5°C) and 32°F (0°C). A subtle decrease in the average high-temperature marks November, falling from October's mild 59.2°F (15.1°C) to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

December, the first month of the winter in Cowiche, is also a wintry month, with temperature in the range of an average low of 23.9°F (-4.5°C) and an average high of 36°F (2.2°C). In Cowiche, December records the lowest average temperatures, peaking at 36°F (2.2°C) and reaching a low of 23.9°F (-4.5°C). Weather in December »
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month in Cowiche?

With an average relative humidity of 83%, January is the most humid month in Cowiche.

How much does it rain?

Throughout the year, there are 87.6 rainfall days, and 5.94" (151mm) of precipitation is accumulated.

When does it snow?

January through April, September, November and December are months with snowfall.

How much does it snow?

In Cowiche, during the entire year, snow falls for 19.9 days and aggregates up to 8.62" (219mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 5.5h of sunshine.

What is the month with the lowest UV index?

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

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cowiche, Washington, 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?

May through August and October are months without snowfall in Cowiche.

When are the longest days?

June has the longest days of the year, with an average of 15h and 48min of daylight.

What is the least humid month?

The months with the lowest humidity are July and August, with an average relative humidity of 41%.

What is the driest month in Cowiche?

The month with the least rainfall is July, when the rain falls for 2.3 days and typically collects 0.08" (2mm) of precipitation.

What are the months with the most sunshine in Cowiche?

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

When is the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

What are the warmest months?

August temperatures tend to peak at an average high of 85.1°F (29.5°C) and dip to a low of 58.8°F (14.9°C).

What is the coldest time of year?

December proves to be the coldest month, recording an average maximum temperature of 36°F (2.2°C) and a minimum temperature of 23.9°F (-4.5°C).

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 9.2 days and typically aggregates up to 0.87" (22mm) of precipitation.

When does it snow the most in Cowiche?

The month with the most snowfall in Cowiche is December, when snow falls for 5.7 days and typically aggregates up to 3.07" (78mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 36min of daylight.

Average temperature
Cowiche, WA

Average temperature - Cowiche, WA

The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (36°F).

The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).

Average pressure
Cowiche, WA

Average pressure - Cowiche, 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
Cowiche, WA

Average wind speed - Cowiche, WA

The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).

Average humidity
Cowiche, WA

Average humidity - Cowiche, WA

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (41%).

Average rainfall
Cowiche, WA

Average rainfall - Cowiche, WA

The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days
Cowiche, WA

Average rainfall days - Cowiche, WA

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is July (2.3 days).

Average snowfall
Cowiche, WA

Average snowfall - Cowiche, WA

The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August and October (0").

Average snowfall days
Cowiche, WA

Average snowfall days - Cowiche, WA

The month with the highest number of snowfall days is December (5.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

Average daylight / Average sunshine
Cowiche, WA

Average daylight / Average sunshine - Cowiche, WA

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).

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
Cowiche, WA

Average sunshine days - Cowiche, WA

The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is February (15.5 days).

Average UV index
Cowiche, WA

Average UV index - Cowiche, WA

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Cowiche, WA

Average visibility - Cowiche, 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).

Cowiche, Washington, USA

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