Lynnwood Weather & Climate: Best Time to Visit

The weather in Lynnwood changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a comfortable 29°C (84°F) in February. In July, the coolest month of the year, temperatures drop to a pleasant 21°C (70°F).

At night, temperatures range from around 18°C (64°F) in February to 6°C (43°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Lynnwood receives mid-range precipitation levels, with 685 mm (27 in) annually. Lynnwood can be quite wet during December, receiving approximately 120 mm (4.7 in) of precipitation over 14 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 3.7 mm (0.1 in) of precipitation spread across a single rainy day days. For more details, please visit our Lynnwood Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Lynnwood experiences moderate variation in sunshine hours across the seasons. With 9.8 hours daily sunshine in August, it dips to 7.8 hours in February, offering a balanced mix of sunny and overcast days.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is moderate throughout the year in Lynnwood.

The city experiences its highest humidity in February, reaching 62%. In August, the humidity drops to its lowest level at 44%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year