The average annual precipitation (rain and snow) is 13.7 inches in Billings; 19.7 inches in Bozeman; 11.2 inches in Helena; and 14.1 inches in Missoula.
It is similar to the average yearly precipitation in the USA.
In Shenyang China the average yearly precipitation is 26.9 inches.
The average yearly precipitation for London is around 23.5 inches or 600mm.
Singapore's average yearly precipitation is 237 centimetres.
The average yearly precipitation in Snoqualmie pass is 84.15 inches.
In the State of Georgia, the average precipitation is 50.74" / year.
67%
The average yearly precipitation in Connecticut is around 48 inches. This includes rain and snowfall throughout the year.
The average precipitation in Italy is between 10 and 20 centimeters anually
24 in. of rain
50 inces
57 inches