Astoria
Oregon, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Astoria, OR

A scenic seaside shot of the city of Astoria in Oregon, with a view of the iconic Astoria Megler bridge crossing over the Columbia River
A scenic seaside shot of the city of Astoria in Oregon, with a view of the iconic Astoria Megler bridge crossing over the Columbia River
January, the same as December, in Astoria, Oregon, is a frosty winter month, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 49.8°F (9.9°C). In Astoria, the average high-temperature in January is practically the same as in December - a still frosty 49.8°F (9.9°C). Weather in January »
February, the last month of the winter, in Astoria, is a fresh month, with average temperature fluctuating between 37.2°F (2.9°C) and 51.6°F (10.9°C). In Astoria, the average high-temperature is almost the same as in January - a fresh 51.6°F (10.9°C). Weather in February »

The first month of the spring, March, is still a cool month in Astoria, Oregon, with average temperature varying between 53.8°F (12.1°C) and 38.8°F (3.8°C). In March, the average high-temperature is almost the same as in February - a still cool 53.8°F (12.1°C). Weather in March »

April is a mild spring month in Astoria, Oregon, with average temperature varying between 56.5°F (13.6°C) and 41°F (5°C). In Astoria, the average high-temperature in April is almost the same as in March - a moderate 56.5°F (13.6°C). Weather in April »

The last month of the spring, May, is another mild month in Astoria, Oregon, with average temperature fluctuating between 60.4°F (15.8°C) and 45.7°F (7.6°C). In Astoria, the average high-temperature is relatively the same as in April - a still moderate 60.4°F (15.8°C). Weather in May »

June, the first month of the summer, in Astoria, is an enjoyable month, with average temperature fluctuating between 63.9°F (17.7°C) and 50°F (10°C). In Astoria, the average high-temperature in June is practically the same as in May - an enjoyable 63.9°F (17.7°C). Weather in June »

July, like June, in Astoria, Oregon, is another comfortable summer month, with average temperature varying between 67.5°F (19.7°C) and 53.1°F (11.7°C). In July, the average high-temperature is essentially the same as in June - a still enjoyable 67.5°F (19.7°C). Weather in July »

August, the last month of the summer, in Astoria, is a pleasant month, with average temperature ranging between max 68.7°F (20.4°C) and min 53.1°F (11.7°C). August is the warmest month, with an average high-temperature of 68.7°F (20.4°C) and an average low-temperature of 53.1°F (11.7°C). Weather in August »

September, the first month of the autumn, in Astoria, is still a comfortable month, with average temperature varying between 67.6°F (19.8°C) and 49.5°F (9.7°C). In Astoria, the average high-temperature is almost the same as in August - an enjoyable 67.6°F (19.8°C). Weather in September »

October, the same as September, is another enjoyable autumn month in Astoria, Oregon, with average temperature varying between 61°F (16.1°C) and 44.2°F (6.8°C). In Astoria, the average high-temperature marginally drops, from 67.6°F (19.8°C) in September, to a still comfortable 61°F (16.1°C). Weather in October »

November, the last month of the autumn, in Astoria, is another cool month, with average temperature varying between 53.4°F (11.9°C) and 40.1°F (4.5°C). In Astoria, Oregon, the average high-temperature in November marginally drops, from an enjoyable 61°F (16.1°C) in October, to a fresh 53.4°F (11.9°C). Weather in November »

The first month of the winter, December, is also a frosty month in Astoria, Oregon, with average temperature varying between 36.7°F (2.6°C) and 48.7°F (9.3°C). The coldest month is December, with an average high-temperature of 48.7°F (9.3°C) and an average low-temperature of 36.7°F (2.6°C). Weather in December »

How much does it rain in Astoria?

Throughout the year, there are 191.1 rainfall days, and 67.2" (1708.1mm) of precipitation is accumulated.

When does it snow in Astoria?

January, February, November and December are months with snowfall in Astoria.

How much does it snow in Astoria?

Throughout the year, in Astoria, there are 1.1 snowfall days, and 1.1" (27.9mm) of snow is accumulated.

When does it snow the most in Astoria?

The month with the most snowfall in Astoria is January when snow falls for 0.4 days and typically aggregates up to 0.5" (12.7mm) of snow.

When is the lowest UV index in Astoria?

Months with the lowest UV index in Astoria, Oregon, are January, November and December, with an average maximum UV index of 1.

What month is the ocean coldest in Astoria?

With an average ocean temperature of 47.8°F (8.8°C), February is the month with the coldest seawater in Astoria. Swimming in 47.8°F (8.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

When are the longest days in Astoria?

The month with the longest days is June, with an average of 15.7h of daylight.

What is the driest month in Astoria?

July is the month with the least rainfall. Rain falls for 8.3 days and accumulates 1" (26.2mm) of precipitation.

When is the ocean warmest in Astoria?

With an average ocean temperature of 56.8°F (13.8°C), July is the month with the warmest seawater in Astoria, Oregon. At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What month has the most sunshine in Astoria?

July has the most sunshine of the year in Astoria, with an average of 9h of sunshine.

When is the highest UV index in Astoria?

July is the month with the highest UV index, with an average maximum UV index of 8.

What is the warmest month in Astoria?

August is the warmest month, with an average high-temperature of 68.7°F (20.4°C) and an average low-temperature of 53.1°F (11.7°C).

What is the wettest month in Astoria?

November is the month with the most rainfall. Rain falls for 21.4 days and accumulates 11.1" (283.2mm) of precipitation.

What is the month with the least sunshine in Astoria?

Months with the least sunshine in Astoria, Oregon, are November and December, with an average of 2h of sunshine.

What is the coldest month in Astoria?

With an average high-temperature of 48.7°F (9.3°C) and an average low-temperature of 36.7°F (2.6°C), December is the coldest month.

What is the month with the shortest days in Astoria?

With an average of 8.7h of daylight, December has the shortest days of the year in Astoria.
Average temperature - Astoria, OR
Average rainfall - Astoria, OR
Average rainfall days - Astoria, OR

Months with the highest number of rainy days are January and November (21.4 days).
The month with the lowest number of rainy days is August (7.4 days).

Average snowfall - Astoria, OR

The month with the highest snowfall is January (0.5").
Months with the lowest snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days - Astoria, OR

Months with the highest number of snowfall days are January and February (0.4 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September and October (0 days).

Average sea temperature - Astoria, OR

The best month for swimming (with the highest average sea temperature) is July (56.9°F).
The coldest month (with the lowest average sea temperature) is February (47.7°F).

Average daylight / Average sunshine - Astoria, OR