Climate and monthly weather forecastMarysville, WA
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 »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.02"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
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 in January:
5.7mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.8mph - Average wind speed in April:
5mph - Average wind speed in May:
4.1mph - Average wind speed in June:
3.9mph
- Average wind speed in July:
3.6mph - Average wind speed in August:
3.5mph - Average wind speed in September:
4mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.4mph
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
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 in January:
3.94" - Average rainfall in February:
3.03" - Average rainfall in March:
3.11" - Average rainfall in April:
2.64" - Average rainfall in May:
1.81" - Average rainfall in June:
1.3"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.51" - Average rainfall in September:
1.77" - Average rainfall in October:
3.11" - Average rainfall in November:
4.06" - Average rainfall in December:
3.82"
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 in January:
18.2 days - Average rainfall days in February:
16.7 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
7.3 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
15.8 days - Average rainfall days in November:
19.7 days - Average rainfall days in December:
19.3 days
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
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 in January:
1.9 days - Average snowfall days in February:
3.1 days - Average snowfall days in March:
1.6 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1.5 days
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 in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 24min
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).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 48min - Average sunshine in May:
9h and 12min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 24min - Average sunshine in November:
4h and 30min - Average sunshine in December:
4h and 12min
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 in January:
10.8 days - Average sunshine days in February:
8.6 days - Average sunshine days in March:
9.6 days - Average sunshine days in April:
9.2 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
21.5 days - Average sunshine days in August:
23.1 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.6 days - Average sunshine days in December:
10.1 days
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
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
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
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).





