| estações: 2748
|
nebulosidade |
base |
| Grand Forks Air Force Base (276 m, Dakota do Norte) |
8 |
|
| Pond Inlet Aeroporto (55 m, Nunavut) |
8 |
600-1000m |
| Monte Washington Aeroporto (1910 m, Nova Hampshire) |
6 |
|
| Eareckson Air Station (31 m, Alasca) |
8 |
300-600m |
| Cavalier Aeroporto (270 m, Dakota do Norte) |
6 |
|
| Langdon Aeroporto (490 m, Dakota do Norte) |
6 |
|
| Grafton Aeroporto (251 m, Dakota do Norte) |
8 |
|
| Liverpool Bay (102 m, Territórios do Noroeste) |
8 |
50-100m |
| Shingle Point Airport (49 m, Yukon) |
8 |
1000-1500m |
| Ilhas da Madalena Aeroporto (18 m, Quebec) |
8 |
300-600m |
| Cut Bank Aeroporto (1169 m, Montana) |
0 |
|
| Sandberg Airport (1379 m, Califórnia) |
0 |
>2500m |
| Hall Beach (8 m, Califórnia) |
0 |
>2500m |
| Adak (5 m, Alasca) |
8 |
50-100m |
| Albuquerque Aeroporto (1618 m, Novo México) |
4 |
1500-2000m |
| Eureka Aeroporto (11 m, Nunavut) |
3 |
600-1000m |
| Resolute AP (67 m, Nunavut) |
7 |
300-600m |
| Qikiqtarjuaq (6 m, Nunavut) |
0 |
>2500m |
| Aeroporto Internacional de Salt Lake (1288 m, Utah) |
2 |
>2500m |
| La Junta Municipal Airport (1278 m, Colorado) |
0 |
|
| Walhalla Aeroporto (291 m, Dakota do Norte) |
2 |
|
| Cando Aeroporto (450 m, Dakota do Norte) |
0 |
|
| Bismarck Municipal Airport (505 m, Dakota do Norte) |
6 |
>2500m |
| Hall Beach Airport (7 m, Nunavut) |
6 |
|
| Mercer County Regional Airport (553 m, Dakota do Norte) |
6 |
|
| Hettinger Municipal Airport (824 m, Dakota do Norte) |
8 |
|
| Oshawa (140 m, Ontário) |
0 |
>2500m |
| Centennial Aeroporto (1793 m, Colorado) |
6 |
|
| Milford Municipal (1536 m, Utah) |
0 |
>2500m |
| Arviat (10 m, Nunavut) |
8 |
>2500m |
| Ft Severn (15 m, Ontário) |
8 |
100-200m |
| Travis Air Force Base (22 m, Califórnia) |
0 |
|
| Devils Lake Regional Airport (443 m, Dakota do Norte) |
0 |
|
| Bowers Airport (527 m, Washington) |
0 |
|
| Juneau Intl. Airport (7 m, Alasca) |
8 |
1000-1500m |
| Buckley Space Force Base (1726 m, Colorado) |
6 |
|
| Colorado Plains Regional Airport (1421 m, Colorado) |
0 |
|
| Lakefront Airport (3 m, Luisiana) |
2 |
|
| Mandan Aeroporto (593 m, Dakota do Norte) |
4 |
|
| Inuvik (68 m, Territórios do Noroeste) |
8 |
|
| Dickinson Theodore Roosevelt Regional A (787 m, Dakota do Norte) |
4 |
|
| Cape Cod Gateway Airport (16 m, Massachusetts) |
8 |
|
| Middleton Island Airport (14 m, Alasca) |
0 |
>2500m |
| São Pedro (24 m, Saint-Pierre e Miquelon) |
7 |
300-600m |
| Clovis Municipal Airport (1284 m, Novo México) |
4 |
|
| Kodiak Airport (34 m, Alasca) |
0 |
>2500m |
| Base da Guarda Nacional do Ar de Otis (40 m, Massachusetts) |
8 |
|
| Frobisher/Iqaluit Airport (34 m, Nunavut) |
2 |
|
| Lubbock Preston Smith Intl. Airport (988 m, Texas) |
6 |
>2500m |
| Laramie Aeroporto (2218 m, Wyoming) |
0 |
|
| Baker Lake Aeroporto (18 m, Nunavut) |
7 |
>2500m |
| Wichita Falls Regional Airport (314 m, Texas) |
0 |
>2500m |
| Yarmouth Airport (46 m, Nova Escócia) |
7 |
300-600m |
| Aeroporto Internacional de Amarillo (1094 m, Texas) |
0 |
>2500m |
| Ada Aeroporto (310 m, Oklahoma) |
8 |
|
| Fort Carson (1789 m, Colorado) |
0 |
|
| West Woodward Airport (667 m, Oklahoma) |
0 |
|
| Yampa Valley Airport (2012 m, Colorado) |
2 |
|
| Biggs Army Airfield (1204 m, Texas) |
0 |
|
| Mobridge Aeroporto (508 m, Dakota do Sul) |
8 |
|
| Barstow-Daggett Airport (587 m, Califórnia) |
0 |
|
| St.Anthony A (32 m, Terra Nova) |
8 |
2000-2500m |
| Saint John's Airport (135 m, Terra Nova) |
7 |
300-600m |
| Cavern City Airport (985 m, Novo México) |
0 |
|
| Clines Corner (2160 m, Novo México) |
2 |
|
| Lytton Aeroporto (225 m, Colúmbia Britânica) |
4 |
|
| Lytton (225 m, Colúmbia Britânica) |
4 |
>2500m |
| General William J. Fox Airfield (712 m, Califórnia) |
0 |
|
| Cannon AFB (1309 m, Novo México) |
6 |
|
| Groton (3 m, Connecticut) |
6 |
|
| Buffalo Niagara Intl. Airport (219 m, Nova Iorque) |
2 |
1500-2000m |
| Aeroporto Internacional John F. Kennedy (7 m, Nova Iorque) |
8 |
300-600m |
| Delaware Coastal Airport (16 m, Delaware) |
8 |
|
| Huron Aeroporto (393 m, Dakota do Sul) |
0 |
>2500m |
| Republic Airport (25 m, Nova Iorque) |
6 |
|
| Garden (878 m, Kansas) |
0 |
|
| Aeroporto MacArthur de Long (30 m, Nova Iorque) |
8 |
|
| Glasgow Aeroporto (693 m, Montana) |
0 |
>2500m |
| Billings Logan Intl. Airport (1088 m, Montana) |
2 |
>2500m |
| Pangborn Memorial Airport (379 m, Washington) |
0 |
|
| Elkhart (1099 m, Kansas) |
0 |
|
| Pampa (989 m, Texas) |
0 |
|
| CFB Bagotville (159 m, Quebec) |
2 |
>2500m |
| Jamestown Regional Airport (454 m, Dakota do Norte) |
0 |
|
| Roberval Aeroporto (187 m, Quebec) |
6 |
>2500m |
| Omak Airport (382 m, Washington) |
0 |
|
| Baker Municipal Airport (902 m, Montana) |
2 |
|
| Saguache (2385 m, Colorado) |
0 |
|
| Walla Walla Aeroporto (355 m, Washington) |
0 |
|
| Dillon Aeroporto (1597 m, Montana) |
0 |
|
| Delta Aeroporto (1451 m, Utah) |
0 |
|
| Tangier (2 m, Texas) |
0 |
|
| Rolla Aeroporto (556 m, Dakota do Norte) |
2 |
|
| Michael J. Smith Field (3 m, Carolina do Norte) |
0 |
|
| Lihue Aeroporto (32 m, Havaí) |
6 |
300-600m |
| Magic Valley Regional Airport (1265 m, Idaho) |
0 |
|
| Charlottetown Aeroporto (79 m, Ilhas do Príncipe Eduardo) |
8 |
300-600m |
| Harvey Aeroporto (487 m, Dakota do Norte) |
0 |
|
| Houlton Intl. Airport (150 m, Maine) |
2 |
|
| Friedman Memorial Airport (1620 m, Idaho) |
0 |
|
| Newport State Airport (52 m, Rhode Island) |
8 |
|
| Block (33 m, Rhode Island) |
8 |
|
| Martha's Vineyard Airport (21 m, Massachusetts) |
8 |
|
| SwiftCurrent (820 m, Saskatchewan) |
7 |
>2500m |
| Sidney Municipal Airport (1312 m, Nebraska) |
0 |
|
| La Grande/Union County Airport (826 m, Oregon) |
0 |
|
| Sedona Airport (1471 m, Arizona) |
0 |
|
| Hamilton Aeroporto (238 m, Ontário) |
1 |
>2500m |
| Ontario Municipal Airport (667 m, Oregon) |
0 |
|
| Ralph Wien Memorial Airport (5 m, Alasca) |
2 |
1500-2000m |
| Toronto/Pearson Airport (173 m, Ontário) |
1 |
>2500m |
| Grand Junction Regional Airport (1472 m, Colorado) |
0 |
>2500m |
| Ottawa Int AP (114 m, Ontário) |
0 |
2000-2500m |
| Colorado Springs Airport (1881 m, Colorado) |
4 |
|
| Hat Isl. (36 m, Nunavut) |
8 |
2000-2500m |
| Gjoa Haven Aeroporto (46 m, Nunavut) |
7 |
>2500m |
| Destin (7 m, Geórgia) |
6 |
|
| Peace River Airport (580 m, Alberta) |
8 |
300-600m |
| Perry Stokes Airport (1756 m, Colorado) |
0 |
|
| High Level Airport (338 m, Alberta) |
8 |
300-600m |
| Converse (1502 m, Wyoming) |
0 |
|
| Thief River Falls Regional Airport (340 m, Minnesota) |
0 |
|
| St. Catharines/Niagara District Airport (98 m, Ontário) |
2 |
|
| Brookhaven Airport (25 m, Nova Iorque) |
8 |
|
| Gillette (1230 m, Wyoming) |
0 |
|
| Pickle Lake Airport (391 m, Ontário) |
0 |
>2500m |
| Iliamna Airport (49 m, Alasca) |
8 |
1500-2000m |
| Ottumwa Regional Airport (256 m, Iowa) |
8 |
|
| Pincher Creek (1190 m, Alberta) |
0 |
|
| Mont-Joli Aeroporto (54 m, Quebec) |
8 |
100-200m |
| Lloyd Stearman Field (416 m, Kansas) |
0 |
|
| H.A. Clark Memorial Field (2036 m, Arizona) |
0 |
|
| Aeroporto Internacional Hector (274 m, Dakota do Norte) |
0 |
>2500m |
| Hermiston Municipal Airport (195 m, Oregon) |
0 |
|
| Sallisaw Municipal Airport (161 m, Oklahoma) |
8 |
|
| Ogden-Hinckley Airport (1362 m, Utah) |
0 |
|
| Colorado City (1486 m, Arizona) |
0 |
|
| Marine Corps Auxiliary Landing Field Bo (7 m, Carolina do Norte) |
0 |
|
| Kemmerer Municipal Airport (2220 m, Wyoming) |
0 |
|
| Wayne County Airport (294 m, Kentucky) |
0 |
|
| Aeroporto Internacional de Newark (9 m, Nova Jersey) |
8 |
300-600m |
| Dubois Aeroporto (2224 m, Wyoming) |
8 |
|
| Spokane Aeroporto (721 m, Washington) |
4 |
>2500m |
| Great Falls (1131 m, Montana) |
2 |
>2500m |
| Southport Aeroporto (8 m, Carolina do Norte) |
0 |
|
| Hutchinson (931 m, Texas) |
0 |
|
| Winkler Aeroporto (855 m, Texas) |
0 |
|
| Guymon Aeroporto (952 m, Oklahoma) |
0 |
|
| Evanston Aeroporto (2177 m, Wyoming) |
0 |
|
| Chester Airport (127 m, Connecticut) |
4 |
|
| Aeroporto Internacional de São F (5 m, Califórnia) |
0 |
>2500m |
| Fulton County Airport (238 m, Ohio) |
0 |
|
| Miller Air Park (25 m, Nova Jersey) |
8 |
|
| Fresno Yosemite Intl. Airport (100 m, Califórnia) |
0 |
>2500m |
| Patrick Space Force Base (3 m, Flórida) |
0 |
|
| Great Falls Intl. Airport (1116 m, Montana) |
2 |
|
| Kingston Arpt (Man) (93 m, Ontário) |
2 |
|
| Greenwood (28 m, Nova Escócia) |
8 |
300-600m |
| Lorain (242 m, Ohio) |
0 |
|
| Limon Aeroporto (1635 m, Colorado) |
0 |
|
| Chadron Municipal Airport (1011 m, Nebraska) |
0 |
|
| Brandon Aeroporto (416 m, Manitoba) |
7 |
1500-2000m |
| Del Norte Aeroporto (2425 m, Colorado) |
0 |
|
| Base Aérea Laughlin (327 m, Texas) |
0 |
|
| Kimball Aeroporto (1501 m, Nebraska) |
0 |
|
| Fredericksburg Aeroporto (26 m, Virgínia) |
0 |
|
| Hallock (250 m, Minnesota) |
0 |
|
| Coeur d'Alene Airport (707 m, Idaho) |
0 |
|
| Puvirnituq (23 m, Quebec) |
2 |
|
| Port Hawkesbury Aeroporto (114 m, Nova Escócia) |
8 |
300-600m |
| Melrose Gunnery Range (1326 m, Novo México) |
8 |
|
| Caldwell Aeroporto (740 m, Idaho) |
0 |
|
| Mary's Harbour Aeroporto (12 m, Terra Nova) |
8 |
|
| Swift Current Airport (818 m, Saskatchewan) |
6 |
|
| Dare County Gunnery Range (3 m, Carolina do Norte) |
0 |
|
| Hill Air Force Base (1459 m, Utah) |
0 |
|
| Aeroporto Internacional de Laredo (155 m, Texas) |
0 |
|
| Ely Airport (1909 m, Nevada) |
0 |
>2500m |
| Jerome (1233 m, Idaho) |
0 |
|
| Naval Air Station Oceana (7 m, Virgínia) |
4 |
|
| Rexburg (1481 m, Idaho) |
6 |
|
| Kit Carson County Airport (1285 m, Colorado) |
0 |
|
| Venice Municipal Airport (6 m, Flórida) |
6 |
|
| Sarnia Chris Hadfield Airport (181 m, Ontário) |
7 |
100-200m |
| Salisbury (16 m, Maryland) |
2 |
|
| Estação Naval de Norfolk (5 m, Virgínia) |
6 |
|
| Aeroporto de Alert (31 m, Nunavut) |
6 |
|
| Lake County Airport (1441 m, Oregon) |
0 |
|
| Annapolis (2 m, Maryland) |
0 |
|
| Hobart Regional Airport (478 m, Oklahoma) |
0 |
|
| Black Hills Airport (1188 m, Dakota do Sul) |
8 |
|
| Cambridge- Dorchester Airport (6 m, Maryland) |
0 |
|
| Aeroporto Internacional Logan (9 m, Massachusetts) |
8 |
200-300m |
| Worcester Aeroporto (308 m, Massachusetts) |
8 |
|
| North Central State Airport (134 m, Rhode Island) |
8 |
|
| Windsor Aeroporto (190 m, Ontário) |
0 |
>2500m |
| Cedar City Regional Airport (1714 m, Utah) |
0 |
|
| Trenton Airport (85 m, Ontário) |
2 |
2000-2500m |
| Burns Municipal Airport (1271 m, Oregon) |
0 |
>2500m |
| Ralph Wenz Field (2160 m, Wyoming) |
0 |
|
| Sydney Aeroporto (72 m, Nova Escócia) |
8 |
100-200m |
| Provincetown Aeroporto (2 m, Massachusetts) |
8 |
|
| Nantucket Memorial Airport (13 m, Massachusetts) |
8 |
|
| Waco Regional Airport (155 m, Texas) |
0 |
>2500m |
| Aeroporto Internacional Rhode (19 m, Rhode Island) |
8 |
200-300m |
| Creston (394 m, Iowa) |
6 |
|
| John H. Batten Airport (205 m, Wisconsin) |
0 |
|
| Falls City/Brenner (300 m, Nebraska) |
0 |
|
| Ann Arbor Municipal Airport (256 m, Michigan) |
0 |
|
| W. K. Kellogg Airport (290 m, Michigan) |
0 |
|
| Capital City Airport (106 m, Pensilvânia) |
0 |
|
| Burlington Intl. Airport (104 m, Vermont) |
4 |
1500-2000m |
| Pickle Lake(Man) (386 m, Ontário) |
0 |
|
| Winnemucca Aeroporto (1322 m, Nevada) |
0 |
>2500m |
| Mineral Wells Airport (296 m, Texas) |
0 |
|
| Aeroporto Nacional Ronald Reagan de Was (20 m, Virgínia) |
2 |
1500-2000m |
| Casa Grande Aeroporto (446 m, Arizona) |
0 |
|
| Lenawee County Airport (244 m, Michigan) |
2 |
|
| Dawson Creek Aeroporto (655 m, Colúmbia Britânica) |
8 |
1000-1500m |
| Palmdale Regional Airport (774 m, Califórnia) |
0 |
|
| Alamogordo (1279 m, Novo México) |
0 |
|
| Milwaukee Mitchell Intl. Airport (211 m, Wisconsin) |
4 |
>2500m |
| Grant County Airport (1638 m, Novo México) |
0 |
|
| Roswell Airport (1118 m, Novo México) |
6 |
2000-2500m |
| Artesia Municipal Airport (1081 m, Novo México) |
0 |
|
| Shepherd Bay Airport (45 m, Nunavut) |
0 |
>2500m |
| Mary’s Harbour (11 m, Terra Nova) |
8 |
1500-2000m |
| Port Aransas Aeroporto (2 m, Texas) |
0 |
|
| Sterling Aeroporto (1231 m, Colorado) |
0 |
|
| Dauphin Aeroporto (305 m, Manitoba) |
7 |
1000-1500m |
| Churchill Airport (29 m, Manitoba) |
8 |
600-1000m |
| Instalação de Voo Wallops (12 m, Virgínia) |
0 |
>2500m |
| Avenger Field (725 m, Texas) |
0 |
|
| Aeroporto Municipal de La Crosse (202 m, Wisconsin) |
0 |
|
| Aeroporto Memorial Sikorsky (5 m, Connecticut) |
6 |
300-600m |
| Base Aérea Edwards (705 m, Califórnia) |
0 |
|
| Francis S. Gabreski Airport (20 m, Nova Iorque) |
8 |
|
| Hale County Airport (1028 m, Texas) |
0 |
|
| Branch County Memorial Airport (292 m, Michigan) |
6 |
|
| Danbury Municipal Airport (139 m, Connecticut) |
6 |
|
| Aeroporto Internacional de Cleveland Ho (245 m, Ohio) |
4 |
1500-2000m |
| Double Eagle II Airport (1779 m, Novo México) |
2 |
|
| Aeroporto Internacional Del Rio (314 m, Texas) |
0 |
>2500m |
| Pueblo Memorial Airport (1439 m, Colorado) |
0 |
>2500m |
| Coral Harbour Airport (64 m, Nunavut) |
5 |
2000-2500m |
| Taos Aeroporto (2161 m, Novo México) |
6 |
|
| Porto Espacial e Aéreo de Mojave (849 m, Califórnia) |
0 |
|
| Los Alamos Aeroporto (2186 m, Novo México) |
8 |
|
| Tweed New Haven Airport (4 m, Connecticut) |
4 |
|
| Twentynine Palms Aeroporto (626 m, Califórnia) |
0 |
|
| Lethbridge (929 m, Alberta) |
0 |
>2500m |
| Grant County Intl. Airport (364 m, Washington) |
4 |
|
| Toronto Islands Aeroporto (77 m, Ontário) |
0 |
>2500m |
| Waterbury (222 m, Connecticut) |
6 |
|
| Auburn Aeroporto (467 m, Califórnia) |
0 |
|
| Meadow Lake Airport (2095 m, Colorado) |
6 |
|
| Ephrata Municipal Airport (383 m, Washington) |
2 |
|
| Windham Airport (76 m, Connecticut) |
8 |
|
| Price/Carbon (1799 m, Utah) |
0 |
|
| Spence Bay Airport (28 m, Nunavut) |
8 |
|
| Aeroporto de Yellowknife (206 m, Territórios do Noroeste) |
7 |
100-200m |
| Taloyoak Aeroporto (28 m, Nunavut) |
8 |
1000-1500m |
| Aeroporto LaGuardia (9 m, Nova Iorque) |
8 |
300-600m |
| Niagara Falls Intl. Airport (180 m, Nova Iorque) |
0 |
|
| Alva Regional Airport (449 m, Oklahoma) |
0 |
|
| Pincher Creek Aeroporto (1190 m, Alberta) |
0 |
>2500m |
| Naval Air Station Whiting Field (54 m, Flórida) |
8 |
|
| Aeroporto Internacional de Richmond (54 m, Virgínia) |
4 |
>2500m |
| Bryce Canyon Airport (2312 m, Utah) |
0 |
|
| Monmouth Executive Airport (48 m, Nova Jersey) |
8 |
|
| Rapid City Aeroporto (965 m, Dakota do Sul) |
0 |
>2500m |
norte - sul