Climate and monthly weather forecast
Pasco, WA

The pink sunrise sky over the iconic Pasco Bridge across the glassy calm waters near Pasco, Washington
The pink sunrise sky over the iconic Pasco Bridge across the glassy calm waters near Pasco, Washington

Weather in January

January, like December, in Pasco, Washington, is a wintry winter month, with temperature in the range of an average high of 39°F (3.9°C) and an average low of 28.8°F (-1.8°C). In Pasco, the average high-temperature in January is practically the same as in December - a still wintry 39°F (3.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Pasco, Washington, with an average temperature ranging between min 32.4°F (0.2°C) and max 44.8°F (7.1°C). In February, the average high-temperature marginally rises from a wintry 39°F (3.9°C) in January to a chilly 44.8°F (7.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Pasco, Washington, with an average temperature fluctuating between 54.1°F (12.3°C) and 38.3°F (3.5°C). In Pasco, the average high-temperature in March increases from a frosty 44.8°F (7.1°C) in February to a fresh 54.1°F (12.3°C). Weather in March »

Weather in April

April in Pasco, Washington, is an enjoyable spring month, with an average temperature ranging between min 43.3°F (6.3°C) and max 63.1°F (17.3°C). In Pasco, the average high-temperature in April rises from a cool 54.1°F (12.3°C) in March to an enjoyable 63.1°F (17.3°C). Weather in April »

Weather in May

May, the last month of the spring in Pasco, is a pleasant month, with an average temperature varying between 50.4°F (10.2°C) and 73°F (22.8°C). In Pasco, Washington, the average high-temperature in May rises from a comfortable 63.1°F (17.3°C) in April to an agreeable 73°F (22.8°C). Weather in May »

Weather in June

June, the first month of the summer in Pasco, is a warm month, with an average temperature ranging between max 80.1°F (26.7°C) and min 56.1°F (13.4°C). In June, the average high-temperature slightly increases from a pleasant 73°F (22.8°C) in May to a warm 80.1°F (26.7°C). Weather in June »

Weather in July

July is a hot summer month in Pasco, Washington, with an average temperature fluctuating between 90°F (32.2°C) and 62.6°F (17°C). July is the warmest month, with an average high-temperature of 90°F (32.2°C) and an average low-temperature of 62.6°F (17°C). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Pasco, Washington, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 89.1°F (31.7°C). In August, the average high-temperature is relatively the same as in July - a still hot 89.1°F (31.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Pasco, is still a warm month, with an average temperature varying between 57.2°F (14°C) and 77.9°F (25.5°C). In September, the average high-temperature drops from a hot 89.1°F (31.7°C) in August to a warm 77.9°F (25.5°C). Weather in September »

Weather in October

October, like September, in Pasco, Washington, is another comfortable autumn month, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 62.4°F (16.9°C). In Pasco, the average high-temperature in October significantly decreases from a moderately hot 77.9°F (25.5°C) in September to an enjoyable 62.4°F (16.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Pasco, is another chilly month, with an average temperature ranging between max 48.7°F (9.3°C) and min 36.5°F (2.5°C). In November, the average high-temperature decreases from an enjoyable 62.4°F (16.9°C) in October to a frosty 48.7°F (9.3°C). Weather in November »

Weather in December

December, the first month of the winter in Pasco, is still a cold month, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 37.8°F (3.2°C). December is the coldest month, with an average high-temperature of 37.8°F (3.2°C) and an average low-temperature of 27.7°F (-2.4°C). Weather in December »
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FAQ

What is the most humid month in Pasco?

January is the most humid month in Pasco, Washington, with an average relative humidity of 80%.

What is the rainiest month in Pasco?

January is the month with the most rainfall. Rain falls for 11.4 days and accumulates 0.94" (24mm) of precipitation.

How many days does it rain in Pasco?

Throughout the year, there are 101.7 rainfall days, and 7.36" (187mm) of precipitation is accumulated.

When does it snow in Pasco?

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

How many days does it snow in Pasco?

In Pasco, during the entire year, snow falls for 11 days and aggregates up to 4.53" (115mm) of snow.

What is the month with the least sunshine in Pasco?

With an average of 5.4h of sunshine, January has the least sunshine of the year in Pasco.

When is the lowest UV index in Pasco?

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

When does it snow the most in Pasco?

The month with the most snowfall in Pasco, Washington, is February, when snow falls for 3.3 days and typically aggregates up to 2.09" (53mm) of snow.

When is Daylight Saving Time (DST) in Pasco?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Pasco?

In Pasco, Washington, snow does not fall in April through October.

When are the longest days in Pasco?

The month with the longest days is June, with an average of 15h and 43min of daylight.

What is the warmest month in Pasco?

July is the warmest month in Pasco, Washington, with an average high-temperature of 90°F (32.2°C) and an average low-temperature of 62.6°F (17°C).

What is the least humid month in Pasco?

July is the least humid month, with an average relative humidity of 35%.

What is the driest month in Pasco?

The month with the least rainfall is July, when the rain falls for 3.8 days and typically collects 0.2" (5mm) of precipitation.

What month has the most sunshine in Pasco?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Pasco, Washington.

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

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

What is the coldest month in Pasco?

With an average high-temperature of 37.8°F (3.2°C) and an average low-temperature of 27.7°F (-2.4°C), December is the coldest month in Pasco, Washington.

What is the month with the shortest days in Pasco?

December has the shortest days of the year in Pasco, Washington, with an average of 8h and 41min of daylight.

Average pressure
Pasco, WA

Average pressure - Pasco, WA

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed
Pasco, WA

Average wind speed - Pasco, WA

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

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Average rainfall
Pasco, WA

Average rainfall - Pasco, WA

The wettest month (with the highest rainfall) is January (0.94").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days
Pasco, WA

Average rainfall days - Pasco, WA

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall
Pasco, WA

Average snowfall - Pasco, WA

The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Pasco, WA

Average snowfall days - Pasco, WA

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Pasco, WA

Average daylight / Average sunshine - Pasco, WA

The month with the longest days is June (Average daylight: 15h and 43min).
The month with the shortest days is December (Average daylight: 8h and 41min).

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days
Pasco, WA

Average sunshine days - Pasco, WA

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is February (14.7 days).

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Average visibility
Pasco, WA

Average visibility - Pasco, WA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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