Climate Insights for Wenatchee

The climate in Wenatchee is cool. The average annual temperature is 8°C and approximately 664mm of precipitation falls per year. October is the wettest month, receiving around 145mm of rainfall. Wenatchee 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 December, January, February, when temperatures can drop to -9°C. Wenatchee experiences heavy snowfall, typically from January through December.

Wenatchee has a wide annual temperature range, spanning 37°C from the coldest to warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 19°C. The coldest month is December, when overnight lows fall to -9°C and the daily average is -6°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 10°C shift in average temperatures.

Wenatchee is a relatively dry area, receiving approximately 664mm of precipitation annually, which averages out to around 55mm per month. The wettest month is October, averaging 145mm of rainfall. January and March also tend to see above-average precipitation. The driest month is August, with just 3mm. That's 142mm less than October, 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. Wenatchee receives heavy snowfall, accumulating around 245cm annually from January through December. The snowiest month is January, with approximately 91cm. Winter travel should account for significant snow cover.

Wenatchee is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 2km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently summer in Wenatchee, which began on June 21, 2026. Wenatchee 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 28°C, while the coldest stretch bottoms out in December near -9°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Wenatchee is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 14mm per month. By contrast, December can be quite cold with temperatures dropping to -9°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Wenatchee 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.