Arroyo Grande (CA) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Arroyo Grande (California). The numbers are calculated over a 30-year period to provide a reliable average.
- Arroyo Grande has dry periods in May, June, July, August, September, October and November.
- On average, December is the wettest month with 74 mm of precipitation.
- On average, August is the driest month with 0 mm of precipitation.
- The average amount of annual precipitation is 317 mm.
Current rainfall in Arroyo Grande (CA)
broken clouds and slight rain
partly cloudy and no rain
broken clouds and no rain