Monthly Average Rainy days in St. Helena (CA)
The number of days each month with rain, snow and hail in St. Helena (California), the United States of America.
- St. Helena has dry periods in June, July, August and September.
- On average, December is the most rainy with 13 days of rain/snow.
- On average, August is the driest month with 0 rainy days.
- The average annual number of rainy days is 73.
Current rainfall in St. Helena (CA)
broken clouds and rain
overcast and slight rain
overcast and rain