Climate and monthly weather forecast
Longview, WA

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The climate of Longview

Longview, nestled in the state of Washington USA, falls under the Mediterranian warm summer category termed as Csb by the Köppen climate classification. This delineation is an indication of a region where winters can be wet, relatively mild while summers see less rainfall and can be hot but not extreme in their temperatures.

Relatively consistent humidity levels mark this region with an annual range between 72% and 88%. Temperatures tend to be mild, fluctuating throughout the year, with the lowest average temperatures touching 32.7°F (0.4°C) in December and the highest reaching 77.9°F (25.5°C) in August. The span of daylight hours shifts from the lowest of 8.7 hours in December and peaks at 15.7 hours in June, a significant deviation that defines the length of days between winter and summer.

Rain prevalence in Longview is significant through the year with an estimated range from 0.39" (10mm) in August to a maximum of 3.9" (99mm) in January. In contrast, snowfall is rare and limited to colder endpoints of the year, with the maximum being noted at merely 1.26" (32mm) in January, and almost negligible occurrence for most of the year. One unique pattern in Longview is its relatively minor sea temperature variations which cover a range from 46.6°F (8.1°C) in February to 53.8°F (12.1°C) in September.

The best time to visit Longview

The Mediterranean climate suggests that the best time to visit Longview would be during the warm, dry summer season. Turning the spotlight on the data, the period from June to August presents promising conditions for a visit. Humidity levels drop down to 72% to 73% during this time, ensuring comfortable outdoor conditions. Sunshine averages rise to a promising 8.5 hours to 10.4 hours a day with an extended daylight duration, offering more than enough time to explore the city's attractions.

The worst time to visit Longview

Judging by the prevailing weather circumstances, the period from November to January may present the most challenging conditions for visiting Longview. Temperatures hover at their lowest averages from 32.7°F (0.4°C) to 44.2°F (6.8°C), coupled with the highest proportion of rainfall days amounting to about 18 days in a month. More so, December receives the least amount of daylight, making sightseeing and outdoor activities problematic due to shorter days and unfavorable weather.

Spring weather in Longview

Spring in Longview, effectively covering March to May, unfolds moderate weather trends. Average temperature highs oscillate from 50°F (10°C) in March to 64.8°F (18.2°C) in May. Rainfall witnesses a consistent reduction moving from an average of 2.83" (72mm) in March to just 1.61" (41mm) in May. Simultaneously, daylight hours tend to expand from an average of 12 hours in March to 15 hours in May, enriching the day for visitors.

Summer weather in Longview

Longview's summer spans June to August, marked by warm temperatures and a decline in rainfall. Temperatures reach their peak in July and August with averages sitting at 76.8°F (24.9°C) and 77.9°F (25.5°C) respectively. Days are longer with an average daylight span close to 15 hours, while rainfall averages reduce to just about 0.43" (11mm) in July and 0.39" (10mm) in August, rendering the conditions ideal for a delightful summer outing.

Autumn weather in Longview

Autumn, encapsulating September to November, witnesses a gradual decrease in temperatures, with averages dropping from 70.7°F (21.5°C) in September to 48.4°F (9.1°C) in November. Rainfall undertakes an inverse pattern, increasing progressively from 1.26" (32mm) in September to 2.64" (67mm) in November. Daylight hours shrink correspondingly, falling from an average of 12.5 hours in September to 9.5 hours in November.

Winter weather in Longview

Wrapping up the annual cycle, winter in Longview, running from December to February, is characterized by cooler temperatures and high rainfall. Average temperatures meander in the region of 33.4°F (0.8°C) to 45.5°F (7.5°C) while rainfall peaks at 3.9" (99mm) in January. Moreover, daylight is in its shortest supply during these months, providing average daylight spans between 8.7 to 10.4 hours. While snowfall can occur, it tends to be light with a maximum of 1.26" (32mm) in January.

Weather in January

January ushers in the colder months in Longview, Washington, predominantly cloudy and somewhat damp with relatively high humidity. The temperatures tend to stay quite chilly, with high temperatures peaking at a mere 44.2°F (6.8°C) while lows can drop to 33.4°F (0.8°C). Weather in January »

Weather in February

February, the last month of the winter in Longview, is also a frosty month, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 33.3°F (0.7°C). Transitioning into February, Longview experiences an average high-temperature of a still frosty 45.5°F (7.5°C), marking a minor shift from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Longview, Washington, with an average temperature ranging between min 34.7°F (1.5°C) and max 50°F (10°C). Longview marks the onset of March with an average high-temperature of a fresh 50°F (10°C), a subtle shift from February's 45.5°F (7.5°C). Weather in March »

Weather in April

April brings with it the full bloom of spring, as Longview witnesses a drastic transformation in weather conditions. The city says goodbye to the chill of winter and welcomes milder, warmer days. High temperatures average at 55.9°F (13.3°C), a significant jump from March. Weather in April »

Weather in May

May is characterized by a pleasant spring warmth, where nature comes alive in its full glory in Longview. The temperatures continue to rise, firmly establishing the departure from the cooler months. Google sunny days become more frequent, creating perfect conditions for outdoor activities and exploration. Weather in May »

Weather in June

June marks the entrance of summer in Longview with an evident rise in temperatures. The city experiences some of its longest days during this period, allowing for maximum sunshine exposure. The rising heat signifies a significant break from the pleasant days of spring. Weather in June »

Weather in July

July is characterized by peak summer weather conditions in Longview, the warmest month of the year with high temperatures reaching a scorching 76.8°F (24.9°C). July also brings back memories of the radiant sun, clear skies, and longer days, making it a popular month for outdoor recreational activities. Weather in July »

Weather in August

Following July, August continues the trend of high temperatures, although slightly milder. Longview remains bathed in sunshine, offering excellent visibility and long daylight hours. Rainfall is relatively scarce, similar to the conditions of July, contributing to an overall drier atmosphere. Weather in August »

Weather in September

September signifies the dawn of fall in Longview, with temperatures beginning to drop, indicating the end of hot summer days. While the afternoons remain pleasantly warm, evenings start to get chillier. Rainfall experiences a slight increase, marking the return of wetter conditions after a rather dry summer. Weather in September »

Weather in October

October in Longview marks the full onset of fall, with temperatures continuing the downward trend from September. October is characterized by frequent rain showers, a shift from the relatively drier conditions in September. With minimal sunshine and more overcast days, October ushers in a period of less outdoor activities. Weather in October »

Weather in November

November brings about a marked transition towards winter temperatures in Longview, with weather conditions becoming noticeably colder. Preceding December, November days are shorter and cloudier compared to October. Prolonged periods of rain make for a grayish canvas, marking a return of the often wet and chilly climate common in the Pacific Northwest region. Weather in November »

Weather in December

December brings with it the full swing of winter in Longview, culminating in the coldest temperatures of the year. The city gets carpeted in a white cover with December recording snowfall with 0.24" (6mm), however minor it may be. Weather in December »
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Frequently asked questions

What is the most humid month in Longview?

January, February, November and December, with an average relative humidity of 88%, are most humid months in Longview.

What is the rainiest month in Longview?

The month with the most rainfall is January, when the rain falls for 18.7 days and typically aggregates up to 3.9" (99mm) of precipitation.

How much does it rain in Longview?

Throughout the year, in Longview, there are 175.5 rainfall days, and 25.83" (656mm) of precipitation is accumulated.

When does it snow in Longview?

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

What is the snowiest month in Longview?

The month with the most snowfall in Longview is January, when snow falls for 1.7 days and typically aggregates up to 1.26" (32mm) of snow.

How much does it snow in Longview?

Throughout the year, in Longview, Washington, there are 6.7 snowfall days, and 3.54" (90mm) of snow is accumulated.

What are the months with the least sunshine in Longview?

The months with the least sunshine are January, February and December, with an average of 3.5h of sunshine.

What is the month with the coldest ocean in Longview?

With an average ocean temperature of 46.6°F (8.1°C), February is the month with the coldest seawater in Longview, Washington.

When is Daylight Saving Time (DST) in Longview?

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

April through October are months without snowfall in Longview, Washington.

When are the longest days in Longview?

With an average of 15h and 42min of daylight, June has the longest days of the year in Longview, Washington.

When is the highest UV index in Longview?

The months with the highest UV index in Longview, Washington, are June and July, with an average maximum UV index of 5.

What is the least humid month in Longview?

July is the least humid month in Longview, Washington, with an average relative humidity of 72%.

What is the hottest time of year in Longview?

August stands out as Longview's warmest month, with temperatures ranging between an average high of 77.9°F (25.5°C) and a low of 49.8°F (9.9°C).

What is the driest month in Longview?

The month with the least rainfall in Longview, Washington, is August, when the rain falls for 6.3 days and typically collects 0.39" (10mm) of precipitation.

What month has the most sunshine in Longview?

With an average of 10.4h of sunshine, August has the most sunshine of the year.

What is the month with the warmest ocean in Longview?

September is the month with the warmest seawater, with an average ocean temperature of 53.8°F (12.1°C).

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

November is the month with the lowest UV index in Longview, Washington, with an average maximum UV index of 1.

What is the coldest time of year in Longview?

December brings the lowest temperatures, with an average high of 42.3°F (5.7°C) and an average low of 32.7°F (0.4°C).

What is the month with the shortest days in Longview?

The month with the shortest days is December, with an average of 8h and 42min of daylight.

Average temperature
Longview, WA

Average temperature - Longview, WA

The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).

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Average pressure
Longview, WA

Average pressure - Longview, WA

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed
Longview, WA

Average wind speed - Longview, WA

The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).

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Average humidity
Longview, WA

Average humidity - Longview, WA

The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).

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Average rainfall
Longview, WA

Average rainfall - Longview, WA

The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days
Longview, WA

Average rainfall days - Longview, WA

The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).

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Average snowfall
Longview, WA

Average snowfall - Longview, WA

The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Longview, WA

Average snowfall days - Longview, WA

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature
Longview, WA

Average sea temperature - Longview, WA

The best month for swimming (with the highest average sea temperature) is September (53.8°F).
The coldest month (with the lowest average sea temperature) is February (46.6°F).

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Average daylight / Average sunshine
Longview, WA

Average daylight / Average sunshine - Longview, WA

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).

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Average sunshine days
Longview, WA

Average sunshine days - Longview, WA

The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).

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Average visibility
Longview, WA

Average visibility - Longview, WA

The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).

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Longview, Washington, USA

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