Walla Walla (WA) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Walla Walla (Washington State). The numbers are calculated over a 30-year period to provide a reliable average.
- Walla Walla has dry periods in July, August and September.
- On average, March is the wettest month with 69 mm of precipitation.
- On average, July is the driest month with 8 mm of precipitation.
- The average amount of annual precipitation is 477 mm.
Current rainfall in Walla Walla (WA)
broken clouds and rain
broken clouds and no rain
broken clouds and chance of slight rain