Monthly Average Rainy days in Alton (IL)
The number of days each month with rain, snow and hail in Alton (Illinois), the United States of America.
- On average, May is the most rainy with 13 days of rain/snow.
- On average, January is the driest month with 7 rainy days.
- The average annual number of rainy days is 115.
Current rainfall in Alton (IL)
almost clear and no rain
broken clouds and rain
overcast and thunder