Climate Insights for Maple Valley

The climate in Maple Valley is temperate. The average annual temperature is 11°C and approximately 1654mm of precipitation falls per year. December is the wettest month, receiving around 246mm of rainfall. Maple Valley 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, January, December, when temperatures can drop to 2°C. Snowfall occurs from January to December, with around 61cm accumulating over the season.

Temperatures in Maple Valley vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 25°C and the mean temperature sits around 18°C. February is the coolest month, with minimum temperatures around 2°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.

Maple Valley is a fairly wet location, receiving approximately 1654mm of precipitation annually, which averages out to around 138mm per month. The wettest month is December, averaging 246mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 25mm. That's 221mm 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 61cm accumulating over the season. February typically sees the most snow at around 28cm.

Maple Valley is relatively calm, with an average annual wind speed of 8km/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 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, 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 4km/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 10km/h in winter, 8km/h in spring, 6km/h in summer, 8km/h in autumn.

It is currently summer in Maple Valley, which began on June 21, 2026. Maple Valley 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 2°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Maple Valley is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 57mm per month. By contrast, February can be quite cold with temperatures dropping to 2°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 Maple Valley 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.