Climate Insights for Lake Stevens

The climate in Lake Stevens is temperate. The average annual temperature is 10°C and approximately 2066mm of precipitation falls per year. December is the wettest month, receiving around 309mm of rainfall. Lake Stevens is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, December, January, when temperatures can drop to 1°C. Snowfall occurs from January to December, with around 108cm accumulating over the season.

Temperatures in Lake Stevens vary considerably across the year, with a 24°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 25°C with a mean of 18°C. February is the coolest month, with minimum temperatures around 1°C and an average of 4°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 5°C shift in average temperatures.

Lake Stevens is a very wet location, receiving approximately 2066mm of precipitation annually, which averages out to around 172mm per month. The wettest month is December, averaging 309mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 28mm. That's 281mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 108cm accumulating over the season. February typically sees the most snow at around 41cm.

Lake Stevens is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 9km/h in winter, 7km/h in spring, 6km/h in summer, 8km/h in autumn.

It is currently summer in Lake Stevens, which began on June 21, 2026. Lake Stevens is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 25°C, while the coldest stretch bottoms out in February near 1°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Lake Stevens is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 55mm per month. By contrast, February can be quite cold with temperatures dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Lake Stevens based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.