Wettest Places in United States

The most precipitation in the United States and the world falls at Mt. Waialeale on Kauai in Hawaii. It rains an average of 460 inches (11,684 millimetres) a year on the tropical island mountain.

Out of the over 270 major weather stations in the US, the two wettest are Yakutat, Alaska with 160.4 inches of precipitation and 235 wet days a year, and Hilo, Hawaii with 126.3 inches of rain and 278 rainy days a year.

Several other places in Alaska and Hawaii also rank among the wettest in the country.

In the rest of the country, the most rain and snow falls at New Hampshire's Mount Washington and at Quillayute in northwestern Washington state. Although the two weather stations are on opposite sides of the continent, they nearly tie in the amount of precipitation they get annually and in the total number of days a year it rain or snows .

Most Rainfall

Nine major weather stations in the continental 48 states receive an average of over 60 inches (1524 millimetres) of precipitation a year:

Location	Inches
Mt. Washington, New Hampshire	101.9
Quillayute, Washington	101.7
Astoria, Oregon	67.1
Mobile, Alabama	66.3
Pensacola, Florida	64.3
New Orleans, Louisiana	64.2
Tallahassee, Florida	63.2
Baton Rouge, Louisiana	63.1
West Palm Beach, Florida	61.4

Most Days With Rain or Snow

Places in the continental USA having over 160 days a year with rain or snow:

Location	Days per Year
Mt. Washington, New Hampshire	209
Quillayute, Washington	208
Astoria, Oregon	193
Syracuse, New York	171
Elkins, West Virginia	171
Buffalo, New York	168
Marquette, Michigan	165
Sault Ste. Marie, Michigan	164
Erie, Pennsylvania	164
Olympia, Washington	163
Binghamton, New York	161