Average monthly snow and rainfall in Guam in millimeter
This is the mean monthly precipitation over the year, including rain, snow, hail etc.
Show average precipitation in Guam in Inches »
- A lot of rain (rainy season) falls in the months: January, February, May, June, July, August, September, October, November and December.
- On average, August is the wettest month.
- On average, March is the driest month.
- The average amount of annual precipitation is: 2495.0 mm (98.23 in)