Hermiston (OR) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Hermiston (Oregon). The numbers are calculated over a 30-year period to provide a reliable average.
- Hermiston has dry periods in February, March, April, May, June, July, August, September, October and November.
- On average, December is the wettest month with 35 mm of precipitation.
- On average, July is the driest month with 3 mm of precipitation.
- The average amount of annual precipitation is 220 mm.
Current rainfall in Hermiston (OR)
partly cloudy and small chance of slight rain
almost clear and no rain
clear and no rain