Climate and monthly weather forecast
Bellingham, WA

Scenic landscape of hills and the sea in this small town in Bellingham, Washington
Scenic landscape of hills and the sea in this small town in Bellingham, Washington

Weather in January

January in Bellingham, Washington, is a chilly winter month, with an average temperature ranging between max 43.5°F (6.4°C) and min 35.8°F (2.1°C). In January, the average high-temperature is essentially the same as in December - a frosty 43.5°F (6.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in Bellingham, Washington, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 44.4°F (6.9°C). In Bellingham, the average high-temperature in February is essentially the same as in January - a still frosty 44.4°F (6.9°C). Weather in February »

Weather in March

The first month of the spring, March, is also a frosty month in Bellingham, Washington, with an average temperature varying between 48°F (8.9°C) and 37.4°F (3°C). In March, the average high-temperature is practically the same as in February - a still frosty 48°F (8.9°C). Weather in March »

Weather in April

April in Bellingham, Washington, is a cool spring month, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 54°F (12.2°C). In April, the average high-temperature slightly increases from a chilly 48°F (8.9°C) in March to a cool 54°F (12.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Bellingham, Washington, with an average temperature varying between 61.3°F (16.3°C) and 45°F (7.2°C). In Bellingham, the average high-temperature in May slightly increases from a cool 54°F (12.2°C) in April to an enjoyable 61.3°F (16.3°C). Weather in May »

Weather in June

June, the first month of the summer in Bellingham, is still a comfortable month, with an average temperature varying between 48.7°F (9.3°C) and 64.9°F (18.3°C). In Bellingham, the average high-temperature in June is essentially the same as in May - a still enjoyable 64.9°F (18.3°C). Weather in June »

Weather in July

July in Bellingham, Washington, is an agreeable summer month, with an average temperature varying between 52.2°F (11.2°C) and 70.3°F (21.3°C). July and August, with an average high-temperature of 70.3°F (21.3°C), are the warmest months. Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in Bellingham, Washington, with an average temperature fluctuating between 53.2°F (11.8°C) and 70.3°F (21.3°C). July and August, with an average high-temperature of 70.3°F (21.3°C), are the warmest months. Weather in August »

Weather in September

September, the first month of the autumn in Bellingham, is also an enjoyable month, with an average temperature varying between 50.7°F (10.4°C) and 65.1°F (18.4°C). In September, the average high-temperature is practically the same as in August - an enjoyable 65.1°F (18.4°C). Weather in September »

Weather in October

October, the same as September, in Bellingham, Washington, is a moderate autumn month, with an average temperature varying between 45.3°F (7.4°C) and 56.3°F (13.5°C). In Bellingham, the average high-temperature in October marginally drops from a comfortable 65.1°F (18.4°C) in September to a mild 56.3°F (13.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Bellingham, is also a frosty month, with an average temperature fluctuating between 40.1°F (4.5°C) and 47.3°F (8.5°C). In November, the average high-temperature drops from a mild 56.3°F (13.5°C) in October to a frosty 47.3°F (8.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Bellingham, Washington, with an average temperature fluctuating between 41.9°F (5.5°C) and 34.9°F (1.6°C). December is the coldest month, with an average high-temperature of 41.9°F (5.5°C) and an average low-temperature of 34.9°F (1.6°C). Weather in December »
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FAQ

What is the most humid month in Bellingham?

The most humid month in Bellingham, Washington, is January, with an average relative humidity of 84%.

How much does it rain in Bellingham?

In Bellingham, during the entire year, the rain falls for 158 days and collects up to 18.7" (475mm) of precipitation.

When does it snow in Bellingham?

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

How many days does it snow in Bellingham?

In Bellingham, during the entire year, snow falls for 9.4 days and aggregates up to 4.65" (118mm) of snow.

What is the month with the least sunshine in Bellingham?

January and December, with an average of 4.2h of sunshine, are months with the least sunshine.

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

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

What is the snowiest month in Bellingham?

February is the month with the most snowfall. Snow falls for 3.4 days and accumulates 1.81" (46mm) of snow.

What is the month with the coldest ocean in Bellingham?

February is the month with the coldest seawater, with an average ocean temperature of 44.4°F (6.9°C).

When is Daylight Saving Time (DST) in Bellingham?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Bellingham, Washington, 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 Bellingham?

In Bellingham, Washington, snow does not fall in May through October.

When are the longest days in Bellingham?

The month with the longest days is June, with an average of 16h and 5min of daylight.

What are the warmest months in Bellingham?

Warmest months in Bellingham, Washington, are July and August, with an average high-temperature of 70.3°F (21.3°C).

What is the least humid month in Bellingham?

July is the least humid month, with an average relative humidity of 74%.

What is the driest month in Bellingham?

July is the month with the least rainfall. Rain falls for 7.7 days and accumulates 0.55" (14mm) of precipitation.

What are the months with the most sunshine in Bellingham?

July and August, with an average of 10.5h of sunshine, are months with the most sunshine in Bellingham, Washington.

When is the highest UV index in Bellingham?

The month with the highest UV index in Bellingham is July, with an average maximum UV index of 5.

When is the ocean warmest in Bellingham?

August is the month with the warmest seawater in Bellingham, Washington, with an average ocean temperature of 53.2°F (11.8°C).

What is the wettest month in Bellingham?

November is the month with the most rainfall in Bellingham. Rain falls for 16.1 days and accumulates 2.64" (67mm) of precipitation.

What is the coldest month in Bellingham?

With an average high-temperature of 41.9°F (5.5°C) and an average low-temperature of 34.9°F (1.6°C), December is the coldest month.

What is the month with the shortest days in Bellingham?

The month with the shortest days is December, with an average of 8h and 21min of daylight.

Average temperature
Bellingham, WA

Average temperature - Bellingham, WA

The warmest months (with the highest average high temperature) are July and August (70.3°F).
The month with the lowest average high temperature is December (41.9°F).

The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).

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Average pressure
Bellingham, WA

Average pressure - Bellingham, WA

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

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Average wind speed
Bellingham, WA

Average wind speed - Bellingham, WA

The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average rainfall
Bellingham, WA

Average rainfall - Bellingham, WA

The wettest month (with the highest rainfall) is November (2.64").
The driest month (with the least rainfall) is July (0.55").

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Average rainfall days
Bellingham, WA

Average rainfall days - Bellingham, WA

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (7.1 days).

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Average snowfall
Bellingham, WA

Average snowfall - Bellingham, WA

The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Bellingham, WA

Average snowfall days - Bellingham, WA

The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature
Bellingham, WA

Average sea temperature - Bellingham, WA

The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

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Average daylight / Average sunshine
Bellingham, WA

Average daylight / Average sunshine - Bellingham, WA

The month with the longest days is June (Average daylight: 16h and 5min).
The month with the shortest days is December (Average daylight: 8h and 21min).

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

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Average sunshine days
Bellingham, WA

Average sunshine days - Bellingham, WA

The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is April (10.8 days).

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Average UV index
Bellingham, WA

Average UV index - Bellingham, WA

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Bellingham, WA

Average visibility - Bellingham, 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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