Climate and monthly weather forecast
Marysville, WA

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Climate and monthly weather forecast

The climate of Marysville

Marysville, Washington, USA, experiences a predominant Mediterranean warm summer climate, classified as Csb under the Köppen climate classification. This coastal city in the Pacific Northwest is known for its temperate climate with significant variations in specific weather parameters throughout the year.

A look into the annual temperature data reveals fluctuating patterns. During the cooler months, from December to February, minimum temperatures oscillate between 34.7°F (1.5°C) and 35.8°F (2.1°C). Warmer weather envelops the city from May to October, with high temperatures ranging from 62.2°F (16.8°C) in May to a peak of 73°F (22.8°C) in August.

Rainfall is a noteworthy characteristic of MarysVille's climate. It reaches its zenith in November with 4.06" (103mm) while the driest month is July with a scant 0.47" (12mm). There is also a drastic shift in rainfall days from 19.3 days in December to as low as 6.1 days in August.

Interestingly, Marysville experiences snowfall, although minimal. Snowy days are mostly limited to the later winter months of January and February, with 1.34" (34mm) and 2.68" (68mm) respectively.

The Best Time to Visit Marysville

With weather conditions taken into account, the optimal time to visit Marysville is arguably between late spring and early autumn. These months, from May to September, experience warmer temperature with highs ranging from 62.2°F (16.8°C) to 73°F (22.8°C) and lows fluctuating from 44.8°F (7.1°C) to 52.5°F (11.4°C).

This period also boasts the least precipitation, with rainfall quantities dipping from 1.81" (46mm) in May to a meager 0.47" (12mm) in July. Correspondingly, rainfall days also decrease, hitting a minimum of six days in August.

Another enticing factor is the length of daylight hours during this interval. The city enjoys maximum sunlight, ranging from 15.2 hours a day in May to 14.2 hours in September.

The Worst Time to Visit Marysville

The colder months of November through January could be challenging due to adverse weather conditions. The temperatures plunge to an average low of between 34.7°F (1.5°C) and 35.8°F (2.1°C), making outdoor activities less appealing.

The chance of encountering rain is also high during this period. The cities experience heightened rainfall, peaking at 4.06" (103mm) in November, and increased rainfall days, rising to 19.7 days in the same month. The prevalence of snowfall can also be a deterrent for some visitors.

Spring Weather in Marysville

Spring in Marysville, from March to May, offers a gradual increase in temperature, making it a welcoming season. High temperature averages gain steadily from 48.9°F (9.4°C) in March to 62.2°F (16.8°C) by May. The lows also rise from 37°F (2.8°C) to 44.8°F (7.1°C) by the end of spring.

Rainfall patterns also shift energetically. The city sees a decrease in rainfall from 3.11" (79mm) in March to 1.81" (46mm) in May, with the number of rainy days dropping correspondingly from 19.8 to 13.3 during the same period.

Summer Weather in Marysville

Summer in Marysville runs from June to August and is marked by a pleasing rise in temperatures. Highs climb from 66.2°F (19°C) in June to reach their peak at 73°F (22.8°C) in August. Lows rise from 47.7°F (8.7°C) to 52.5°F (11.4°C).

It is the driest part of the year in terms of both rainfall and the number of rainy days. Rainfall decreases to a minimum of 0.47" (12mm) in July, and the number of rainy days shrinks to its smallest, landing at six in August.

Autumn Weather in Marysville

Autumn in Marysville, from September to November, witnesses a progressive decrease in temperatures and an increase in rainfall. Maximum temperatures slide from 67.1°F (19.5°C) in September to 47.7°F (8.7°C) by November. The minimum temperatures show a similar pattern, dropping from 50°F (10°C) to 39.2°F (4°C).

Rainfall metrics also swing dramatically, starting at 1.77" (45mm) in September and ending at 4.06" (103mm) in November. The number of rainfall days also climbs from 12.3 in September to 19.7 by the end of autumn.

Winter Weather in Marysville

Winter introduces cooler temperatures in Marysville from December to February. The highs vary from 44.1°F (6.7°C) in December to 35.8°F (2.1°C) in February. Likewise, lows generally fall between 34.7°F (1.5°C) and 35.2°F (1.8°C).

Rainfall volumes increase as well, peaking at 3.82" (97mm) in December. Correspondingly, the city sees a marked increase in the number of rainy and snowy days. Snowfall, though minimal, is present mostly with January and February experiencing 1.34" (34mm) and 2.68" (68mm) respectively.

Weather in January

When ushering the new year in Marysville, Washington, the city maintains a chilly grip, with January being the coldest month. The region's weather presents a modest interplay between low temperatures from 35.8°F (2.1°C) to high temperatures peaking at 44.1°F (6.7°C). Weather in January »

Weather in February

February in Marysville sees a slight rise in temperature from the icy bite of January, signaling the approach of spring. February also brings the largest accumulation of snowfall with averages from 1.34in to 2.68in. The month, dominated by colder days, gives little sunshine, which results in shorter daylight hours compared with the coming months. Weather in February »

Weather in March

March sees a significant shift towards warmer weather in Marysville, one of the defining traits of this transition month. An increase in sunshine hours from 4.4h to 6.1h aids in this temperature rise but does not keep the rainfall amounts from jumping to 3.11" (79mm), compared with February's 3.03" (77mm). Weather in March »

Weather in April

As spring sets in, April in Marysville brings blossoms and warming temperatures. The charm of this month lies in the average temperature hike from 48.9°F (9.4°C) to a more comfortable 54.3°F (12.4°C). Daylight further stretches, extending outdoor activities and visibility. Weather in April »

Weather in May

May brings a newfound vibrancy to Marysville with mild temperatures and longer daylight hours. Significant temperature heights fluctuate between 54.3°F (12.4°C) and 62.2°F (16.8°C), producing enjoyable weather. This month marks the onset of barbecue and picnic season, characterized by an increase in sunshine hours, offering sun-soaked afternoons perfect for outdoor activities. Weather in May »

Weather in June

June is a call to the outdoors in Marysville, with weather conditions becoming warm and inviting. It witnesses a further escalation in temperatures from May's 62.2°F (16.8°C) to a warmer 66.2°F (19°C). As summer draws closer, residents can look forward to blooming landscapes and sunny skies. Weather in June »

Weather in July

Sunny and warm, July stands as the peak of summer and is the warmest month in Marysville, with high temperatures soaring to 72.1°F (22.3°C). The extended hours of daylight paired with longer sunshine hours set the stage for beach outings and barbecues. Weather in July »

Weather in August

August continues to ride the summer wave in Marysville, albeit with a slight dip in temperatures. The mercury levels range in the more manageable breadth between 72.1°F (22.3°C) and 73°F (22.8°C). The reduction in humidity ensures an enjoyable outdoor experience, making it a favorite month for tourists. Weather in August »

Weather in September

September signifies the start of autumn in Marysville, bringing a hearty blend of sunshine-filled days and cool nights. September ushers in a gradual decrease in temperatures from 73°F (22.8°C) in August to a milder 67.1°F (19.5°C). Weather in September »

Weather in October

October presents Marysville's residents with cooler morning temperatures and warm autumn afternoons as the city steps deep into the fall season. Temperatures start to take a dip from September's 67.1°F (19.5°C) to 57°F (13.9°C), marking an influx of a more chilly atmosphere. Weather in October »

Weather in November

November makes the transition from fall to winter in Marysville a noticeable affair. A steep drop in temperatures occurs, from October's 57°F (13.9°C) to a colder outlook of 47.7°F (8.7°C). The increasingly colder days bring a significant increase in rainfall to 4.06" (103mm), contributing to the overall chill. Weather in November »

Weather in December

December concludes the year in Marysville with temperatures dropping to the low of 34.7°F (1.5°C), providing the perfect setting for festive cheer. December ranks as the month with the highest levels of rainfall at 3.82" (97mm). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the most humid months in Marysville?
The months with the highest humidity in Marysville are January and December, with an average relative humidity of 85%.
How much does it rain in Marysville?
In Marysville, Washington, during the entire year, the rain falls for 179.1 days and collects up to 29.57" (751mm) of precipitation.
When does it snow in Marysville?
Months with snowfall are January through April, November and December.
How many days does it snow in Marysville?
In Marysville, during the entire year, snow falls for 8.9 days and aggregates up to 6.1" (155mm) of snow.
What is the month with the least sunshine in Marysville?
January and December, with an average of 4.2h of sunshine, are months with the least sunshine.
When is the lowest UV index in Marysville?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When does it snow the most in Marysville?
February is the month with the most snowfall in Marysville. Snow falls for 3.1 days and accumulates 2.68" (68mm) of snow.
When is Daylight Saving Time (DST) in Marysville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Marysville, 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 Marysville?
May through October are months without snowfall in Marysville.
When are the longest days in Marysville?
June has the longest days of the year in Marysville, Washington, with an average of 16h and 0min of daylight.
What is the month with the highest UV index in Marysville?
June and July, with an average maximum UV index of 5, are months with the highest UV index in Marysville.
What is the least humid month in Marysville?
July is the least humid month in Marysville, Washington, with an average relative humidity of 73%.
What is the driest month in Marysville?
The month with the least rainfall is July, when the rain falls for 7.3 days and typically collects 0.47" (12mm) of precipitation.
What month is the hottest in Marysville?
The warmest period tends to be August, when average temperatures fluctuate between a high of 73°F (22.8°C) and a low of 52.5°F (11.4°C).
What month has the most sunshine in Marysville?
The month with the most sunshine is August, with an average of 10.6h of sunshine.
What is the rainiest month in Marysville?
November is the month with the most rainfall in Marysville. Rain falls for 19.7 days and accumulates 4.06" (103mm) of precipitation.
What is the coldest time of year in Marysville?
December, on average, is the coldest month in Marysville, Washington, registering a high temperature of 42.3°F (5.7°C) and a low of 34.7°F (1.5°C).
What is the month with the shortest days in Marysville?
The month with the shortest days is December, with an average of 8h and 24min of daylight.
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Average temperature - Marysville, WA
Average temperature
Marysville, WA

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

Average pressure - Marysville, WA
Average pressure
Marysville, WA

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed - Marysville, WA
Average wind speed
Marysville, WA

The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity - Marysville, WA
Average humidity
Marysville, WA

The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).

Average rainfall - Marysville, WA
Average rainfall
Marysville, WA

The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").

Average rainfall days - Marysville, WA
Average rainfall days
Marysville, WA

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).

Average snowfall - Marysville, WA
Average snowfall
Marysville, WA

The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days - Marysville, WA
Average snowfall days
Marysville, WA

The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Marysville, WA
Average daylight / Average sunshine
Marysville, WA

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

Average sunshine days - Marysville, WA
Average sunshine days
Marysville, WA

The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).

Average UV index - Marysville, WA
Average UV index
Marysville, WA

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

Average cloud cover - Marysville, WA
Average cloud cover
Marysville, WA

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility - Marysville, WA
Average visibility
Marysville, WA

The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).

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