Boise (ID) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Boise (Idaho). The numbers are calculated over a 30-year period to provide a reliable average.
- Boise has dry periods in June, July, August and September.
- On average, December is the wettest month with 49 mm of precipitation.
- On average, August is the driest month with 8 mm of precipitation.
- The average amount of annual precipitation is 326 mm.
Current rainfall in Boise (ID)
overcast and chance of slight rain
broken clouds and rain
clear and no rain