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

Weather in February

February, the last month of the winter in Pasco, is a frosty month, with an average temperature fluctuating between 44.8°F (7.1°C) and 32.4°F (0.2°C). In Pasco, the average high-temperature in February 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 cool month in Pasco, Washington, with an average temperature varying between 38.3°F (3.5°C) and 54.1°F (12.3°C). In Pasco, Washington, the average high-temperature in March increases from a frosty 44.8°F (7.1°C) in February to a cool 54.1°F (12.3°C). Weather in March »

Weather in April

April is an enjoyable spring month in Pasco, Washington, with an average temperature fluctuating between 43.3°F (6.3°C) and 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 a comfortable 63.1°F (17.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Pasco, Washington, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 50.4°F (10.2°C). In May, the average high-temperature rises from an enjoyable 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 fluctuating between 80.1°F (26.7°C) and 56.1°F (13.4°C). In June, the average high-temperature marginally rises from an agreeable 73°F (22.8°C) in May to a moderately hot 80.1°F (26.7°C). Weather in June »

Weather in July

July is a tropical summer month in Pasco, Washington, with an average temperature fluctuating between 62.6°F (17°C) and 90°F (32.2°C). The warmest month is July, 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 also a hot month in Pasco, Washington, with an average temperature ranging between min 64°F (17.8°C) and max 89.1°F (31.7°C). In Pasco, Washington, the average high-temperature in August 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 fluctuating between 77.9°F (25.5°C) and 57.2°F (14°C). In September, the average high-temperature drops from a tropical 89.1°F (31.7°C) in August to a moderately hot 77.9°F (25.5°C). Weather in September »

Weather in October

October, like September, in Pasco, Washington, is another enjoyable autumn month, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 46.8°F (8.2°C). In Pasco, the average high-temperature in October declines considerably 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

The last month of the autumn, November, is another chilly month in Pasco, Washington, with an average temperature varying between 36.5°F (2.5°C) and 48.7°F (9.3°C). In November, the average high-temperature decreases from a comfortable 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 an average temperature varying between 27.7°F (-2.4°C) and 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?

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

What is the rainiest month in Pasco?

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

How many days does it rain in Pasco?

In Pasco, during the entire year, the rain falls for 101.7 days and collects up to 7.36" (187mm) of precipitation.

When does it snow in Pasco?

January through March, November and December are months with snowfall.

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?

January has the least sunshine of the year, with an average of 5.4h of sunshine.

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

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

When does it snow the most in Pasco?

February is the month with the most snowfall. Snow falls for 3.3 days and accumulates 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 in Pasco, 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?

April through October are months without snowfall.

When are the longest days in Pasco?

June has the longest days of the year, with an average of 15h and 43min of daylight.

What is the warmest month in Pasco?

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

What is the least humid month in Pasco?

The least humid month in Pasco, Washington, is July, with an average relative humidity of 35%.

What is the driest month in Pasco?

July is the month with the least rainfall in Pasco, Washington. Rain falls for 3.8 days and accumulates 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.

When is the highest UV index in Pasco?

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

What is the coldest month in Pasco?

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).

What is the month with the shortest days in Pasco?

With an average of 8h and 41min of daylight, December has the shortest days of the year.

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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