Cloudiest Places in United States
Days of Heavy Cloud
The south coast of Alaska leads the way as the cloudiest region of the United States. Several weather stations scattered along the coast's remote islands and bays report more cloudy days a year than anywhere else in the country. Places with plenty of heavy cloudy range from Juneau on Alaska's panhandle in the southeast, westward to Saint Paul Island in the Bering Sea.
Consistently the cloudiest among these isolated places is Cold Bay, a tiny community on the Alaska Peninsula in Aleutians East Borough. Cold Bay has an average of 304 overcast days a year, 83% of days, when cloud covers over three-quarters of the sky.
Saint Paul Island ranks second among the 260 major weather stations in the US that track cloudy days, with 287 days annually. Juneau is the next cloudiest with extensive cloud on 280 days a year, or about three out of four days.
Outside of Alaska, exceptionally cloudy spots include Mt. Washington in New Hampshire, and coastal areas of Washington and northern Oregon.
The rankings are for the 260 major weather stations in the US that track cloudy days.
|Location||Days a Year
With Heavy Cloud
|% of Days|
|Mt. Washington, New Hampshire||244||67|
|Seattle Airport, Washington||226||62|
|Elkins, West Virginia||212||58|
|Binghamton, New York||212||58|
|Beckley, West Virginia||210||58|
All Cloudy Days
It's a rare day when overhead cloud is scarce in Cold Bay, Alaska. Cloud covers over one-quarter of the Cold Bay sky on an average of 354 days a year. That leaves just eleven days annually of clear weather.
No major US weather station outside of Alaska comes close to recording so many cloudy and partially cloudy days.
|Location||Days a Year With Cloud||% of Days|
|Cold Bay, Alaska||354||97|
|St. Paul Island, Alaska||348||95|
|Mt. Washington New Hampshire||321||88|
|Elkins, West Virginia||315||86|
|King Salmon, Alaska||314||86|
|Binghamton, New York||314||86|
|Buffalo, New York||311||85|
Partial Cloudy Weather
While southern Alaska excels at solid overcast, Hawaii and Florida are the places most likely to be under partial cloud cover. These are weather conditions when cloud cover extends anywhere from over one-quarter up to three-quarters of the sky.
Partially cloudy skies are most common in Lihue and Honolulu, Hawaii, accounting for half of all days there.
|Location||Days a Year With Partial Cloud||% of Days|
|Fort Myers, Florida||168||46|
|West Palm Beach, Florida||159||44|
|Key West, Florida||155||42|
|Daytona Beach, Florida||132||36|