Marysville (WA) Temperature by Month
Marysville, Washington State, United States of America has an average annual maximum temperature of 15°C (59°F), ranging from 7°C (45°F) in December to 24°C (75°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Marysville Monthly Temperatures
The climate in Marysville is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 12°C (54°F) in August to 1°C (34°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Marysville by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. August, the warmest month, sees 280 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Marysville vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Marysville vs World: Temperature Compared
Marysville's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Marysville?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Marysville, December is the coolest month, with average highs of 7°C (45°F) and humidity around 80% — considered very high. In August, the warmest month, temperatures average 24°C (75°F) with 68% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Marysville's weather — including monthly rainfall, sunshine hours, and humidity — visit our Marysville climate page.
