| Stations: 2895
|
Cloud Cover |
Cloud Base |
| Roanoke Airport (358 m, Virginia) |
4 |
|
| Alexandria Airport (432 m, Minnesota) |
8 |
|
| Chippewa Valley Regional Airport (271 m, Wisconsin) |
6 |
|
| Yellowknife Airport (206 m, Northwest Territories) |
2 |
1000-1500m |
| Ronald Reagan Washington National Airpo (20 m, Virginia) |
4 |
1000-1500m |
| Naval Outlying Landing Field San Nicola (174 m, California) |
0 |
|
| Hutchinson Airport (323 m, Minnesota) |
8 |
|
| Owatonna (Awos) (350 m, Minnesota) |
0 |
|
| Minneapolis (255 m, Minnesota) |
8 |
|
| Manassas Regional Airport (59 m, North Carolina) |
0 |
|
| Glencoe Airport (302 m, Minnesota) |
8 |
|
| Regina Airport (577 m, Saskatchewan) |
2 |
|
| Flying Cloud Airport (276 m, Minnesota) |
6 |
|
| Reading Regional Airport (105 m, Pennsylvania) |
2 |
|
| Nipawin Airport (374 m, Saskatchewan) |
0 |
>2500m |
| Harrisburg Intl. Airport (94 m, Pennsylvania) |
4 |
|
| Holman Island AP (36 m, Northwest Territories) |
4 |
|
| Pierre Regional Airport (528 m, South Dakota) |
0 |
|
| Osceola Airport (275 m, Wisconsin) |
6 |
|
| Sonora Airport (652 m, Texas) |
6 |
|
| Jimmy Lake (636 m, Saskatchewan) |
0 |
>2500m |
| Rankin Inlet Airport (29 m, Nunavut) |
7 |
1500-2000m |
| Rusk County Airport (377 m, Wisconsin) |
6 |
|
| Resolute AP (67 m, Nunavut) |
1 |
2000-2500m |
| Sky Harbor Airport & Seaplane Base (186 m, Minnesota) |
4 |
|
| John F. Kennedy Intl. Airport (7 m, New York) |
6 |
1500-2000m |
| Arviat (10 m, Nunavut) |
8 |
50-100m |
| Linden Airport (7 m, New Jersey) |
4 |
|
| Worthington (480 m, Minnesota) |
0 |
|
| Waseca Airport (343 m, Minnesota) |
0 |
|
| The Pas Airport (270 m, Manitoba) |
0 |
>2500m |
| Willmar Airport (343 m, Minnesota) |
6 |
|
| Pocono Mountains Airport (584 m, Pennsylvania) |
6 |
|
| Southwest Minnesota Regional Airport (359 m, Minnesota) |
0 |
|
| Gatineau-Ottawa Executive Airport (64 m, Quebec) |
6 |
|
| Westchester (121 m, New York) |
4 |
|
| Wellsville Airport (646 m, New York) |
2 |
|
| Kingston Arpt (Man) (93 m, Ontario) |
4 |
|
| Logan Intl. Airport (9 m, Massachusetts) |
6 |
1500-2000m |
| Wilkes-Barre/Scranton Intl. Airport (289 m, Pennsylvania) |
2 |
2000-2500m |
| Dodge Center Airport (398 m, Minnesota) |
4 |
|
| La Crosse Regional Airport (202 m, Wisconsin) |
8 |
|
| Kugluktuk Airport (23 m, Nunavut) |
6 |
300-600m |
| Elizabeth City Regional Airport (4 m, North Carolina) |
0 |
|
| Simmons Army Airfield (74 m, North Carolina) |
0 |
|
| Peterborough (191 m, Ontario) |
4 |
1000-1500m |
| Davison Army Airfield (21 m, Virginia) |
0 |
|
| Estherville Muni (401 m, Iowa) |
0 |
|
| Spencer Airport (408 m, Iowa) |
0 |
|
| Slave Lake Airport (583 m, Alberta) |
4 |
|
| New Richmond Regional Airport (304 m, Wisconsin) |
0 |
|
| Dover Air Force Base (9 m, Delaware) |
2 |
|
| Airlake Airport (293 m, Minnesota) |
0 |
|
| Frobisher/Iqaluit AP (34 m, Nunavut) |
6 |
|
| Central Wisconsin Airport (389 m, Wisconsin) |
8 |
|
| St. Paul Downtown Airport (219 m, Minnesota) |
2 |
|
| Oakes Airport (400 m, North Dakota) |
4 |
|
| South Wood County Airport (308 m, Wisconsin) |
8 |
|
| Marine Corps Air Facility Quantico Airp (4 m, Virginia) |
0 |
|
| Fairmont Airport (354 m, Minnesota) |
0 |
|
| Dryden Airport (413 m, Ontario) |
0 |
>2500m |
| Stevens Point Airport (338 m, Wisconsin) |
8 |
|
| DuBois Airport (554 m, Pennsylvania) |
0 |
|
| Gwinner Airport (386 m, North Dakota) |
0 |
|
| Taylor (448 m, Wisconsin) |
8 |
|
| Richard I. Bong Airport (206 m, Wisconsin) |
6 |
|
| Albert Lea Airport (383 m, Minnesota) |
0 |
|
| Akron- Canton Airport (377 m, Ohio) |
4 |
|
| Jackson Airport (441 m, Minnesota) |
0 |
|
| Greater Cumberland Regional Airport (236 m, West-Virginia) |
0 |
|
| Barstow-Daggett Airport (587 m, California) |
0 |
|
| Greater Cumberland Regional Airport (236 m, Maryland) |
0 |
|
| Johnstown (696 m, Pennsylvania) |
0 |
|
| Ottawa Int AP (114 m, Ontario) |
7 |
600-1000m |
| Norfolk Regional Airport (473 m, Nebraska) |
0 |
|
| Tekamah (Asos) (312 m, Nebraska) |
0 |
|
| Dulles Intl. Airport (98 m, Virginia) |
2 |
|
| McAllen Miller Intl. Airport (33 m, Texas) |
0 |
|
| General William J. Fox Airfield (712 m, California) |
0 |
|
| Ord Airport (631 m, Nebraska) |
0 |
|
| Mojave Air and Space Port Airport (849 m, California) |
0 |
|
| Sioux Gateway Airport (336 m, Iowa) |
0 |
|
| Hot Springs (1153 m, Virginia) |
8 |
|
| Fort Dodge Regional Airport (355 m, Iowa) |
0 |
|
| Clearfield- Lawrence Airport (462 m, Pennsylvania) |
0 |
|
| Great Bend Airport (575 m, Kansas) |
0 |
|
| Salina Regional Airport (385 m, Kansas) |
0 |
|
| Swift Current Airport (818 m, Saskatchewan) |
0 |
|
| Saskatoon AP (503 m, Saskatchewan) |
8 |
|
| Crystal Airport (265 m, Minnesota) |
0 |
|
| SwiftCurrent (820 m, Saskatchewan) |
0 |
>2500m |
| Essex (53 m, New Jersey) |
2 |
|
| Millville Executive Airport (25 m, New Jersey) |
6 |
|
| Teterboro Airport (3 m, New Jersey) |
6 |
|
| Dauphin Airport (305 m, Manitoba) |
0 |
>2500m |
| Luverne Airport (436 m, Minnesota) |
0 |
|
| Pittsburgh Intl. Airport (373 m, Pennsylvania) |
2 |
1000-1500m |
| Edward F. Knapp State Airport (355 m, Vermont) |
6 |
|
| Clayton Municipal Airpark (1515 m, New Mexico) |
0 |
|
| Omak Airport (382 m, Washington) |
2 |
|
| Northern Aroostook Regional Airport (301 m, Maine) |
8 |
|
| Capital City Airport (106 m, Pennsylvania) |
0 |
|
| Clovis Airport (1284 m, New Mexico) |
0 |
|
| North Battleford Airport (548 m, Saskatchewan) |
8 |
300-600m |
| Yorkton Airport (498 m, Saskatchewan) |
0 |
>2500m |
| Prince Albert Airport (428 m, Saskatchewan) |
6 |
600-1000m |
| Meadow Lake Airport (480 m, Saskatchewan) |
2 |
300-600m |
| Ft Severn (15 m, Ontario) |
4 |
>2500m |
| Hillsville (834 m, Virginia) |
4 |
|
| Greater Binghamton Airport (497 m, New York) |
6 |
|
| Buffalo Niagara Intl. Airport (219 m, New York) |
6 |
600-1000m |
| Greater Rochester Intl. Airport (169 m, New York) |
6 |
|
| Flin Flon Airport (304 m, Manitoba) |
2 |
|
| Sheldon (432 m, Iowa) |
0 |
|
| Storm Lake Airport (454 m, Iowa) |
0 |
|
| Hamilton Airport (238 m, Ontario) |
0 |
1000-1500m |
| Saint John Airport (111 m, New Brunswick) |
8 |
300-600m |
| Lloydminster Airport (669 m, Alberta) |
7 |
300-600m |
| Longville Airport (407 m, Minnesota) |
6 |
|
| South Texas International Airport at Ed (24 m, Texas) |
4 |
|
| Estevan Airport (584 m, Saskatchewan) |
0 |
>2500m |
| Winchester Regional Airport (222 m, Virginia) |
0 |
|
| Sable Island (1 m, Nova Scotia) |
4 |
100-200m |
| Wallops Flight Facility Airport (12 m, Virginia) |
4 |
|
| Lehigh Valley Intl. Airport (117 m, Pennsylvania) |
0 |
|
| Naujaat Airport (24 m, Nunavut) |
4 |
|
| Waterloo Well AP (315 m, Ontario) |
0 |
>2500m |
| Penn Valley Airport (137 m, Pennsylvania) |
2 |
|
| Windom (410 m, Minnesota) |
0 |
|
| Cape Cod Gateway Airport (16 m, Massachusetts) |
0 |
|
| Mason (363 m, Iowa) |
0 |
|
| Heritage Field Airport (89 m, Pennsylvania) |
0 |
|
| High Level Airport (338 m, Alberta) |
4 |
1000-1500m |
| Aberdeen Airport (397 m, South Dakota) |
0 |
|
| Dodge City Regional Airport (790 m, Kansas) |
0 |
>2500m |
| Pine Springs (1663 m, Texas) |
0 |
|
| McGregor Airport (374 m, Minnesota) |
8 |
|
| Asheville Regional Airport (661 m, North Carolina) |
0 |
|
| Ortonville (335 m, Minnesota) |
4 |
|
| Hutchinson Airport (462 m, Kansas) |
0 |
|
| Sable Island AP (5 m, Nova Scotia) |
4 |
|
| Groton (3 m, Connecticut) |
2 |
|
| Newton (467 m, Kansas) |
0 |
|
| Garden (878 m, Kansas) |
0 |
|
| West Woodward Airport (667 m, Oklahoma) |
0 |
|
| Slayton Airport (495 m, Minnesota) |
0 |
|
| Waskaganish Airport (23 m, Quebec) |
8 |
|
| Rhode (19 m, Rhode Island) |
6 |
|
| Clinton-Sherman Industrial Airpark (586 m, Oklahoma) |
0 |
|
| Altoona (458 m, Pennsylvania) |
0 |
|
| Hobart Regional Airport (478 m, Oklahoma) |
0 |
|
| Ogoki Post Airport (181 m, Ontario) |
0 |
>2500m |
| Dansville Airport (201 m, New York) |
6 |
|
| Quonset State Airport (6 m, Rhode Island) |
4 |
|
| Anoka (278 m, Minnesota) |
2 |
|
| Jamestown Regional Airport (454 m, North Dakota) |
0 |
|
| St. Cloud Regional Airport (312 m, Minnesota) |
8 |
|
| Grand Forks Intl. Airport (255 m, North Dakota) |
2 |
|
| Kickapoo Downtown Airport (304 m, Texas) |
4 |
|
| Miller Air Park (25 m, New Jersey) |
0 |
|
| Atlantic City Airport (20 m, New Jersey) |
6 |
|
| Syracuse Hancock Intl. Airport (124 m, New York) |
6 |
600-1000m |
| Cannon Air Force Base (1309 m, New Mexico) |
0 |
|
| Canby Airport (364 m, Minnesota) |
0 |
|
| Eastern WV Regional Airport (170 m, West-Virginia) |
0 |
|
| Garner Field (287 m, Texas) |
0 |
|
| Inukjuak (25 m, Quebec) |
0 |
>2500m |
| Morristown Airport (57 m, New Jersey) |
4 |
|
| Fredericksburg Airport (26 m, Virginia) |
4 |
|
| Perry Stokes Airport (1756 m, Colorado) |
0 |
|
| Niagara Falls Intl. Airport (180 m, New York) |
4 |
|
| Chan Gurney Airport (398 m, South Dakota) |
0 |
|
| Trenton (65 m, New Jersey) |
0 |
|
| Brownsville/South Padre (8 m, Texas) |
2 |
|
| Gjoa Haven Airport (46 m, Nunavut) |
6 |
|
| Gillam Airport (146 m, Manitoba) |
7 |
300-600m |
| Hartford Airport (6 m, Connecticut) |
4 |
|
| South Jersey Regional Airport (16 m, New Jersey) |
0 |
|
| Melrose Gunnery Range (1326 m, New Mexico) |
0 |
|
| Duluth Airport (432 m, Minnesota) |
2 |
|
| Philip Airport (673 m, South Dakota) |
6 |
|
| Pangborn Memorial Airport (379 m, Washington) |
2 |
|
| Whitecourt Airport (785 m, Alberta) |
5 |
300-600m |
| Muscatine Airport (167 m, Iowa) |
0 |
|
| Cherokee Airport (374 m, Iowa) |
0 |
|
| Austin Executive Airport (188 m, Texas) |
4 |
|
| Magdalen Islands Airport (18 m, Quebec) |
8 |
50-100m |
| Fort St. John AP (695 m, British Columbia) |
6 |
>2500m |
| Marshfield Airport (389 m, Wisconsin) |
8 |
|
| Paynesville Airport (360 m, Minnesota) |
8 |
|
| Piedmont Triad Intl. Airport (277 m, North Carolina) |
4 |
1000-1500m |
| Ithaca Tompkins Intl. Airport (335 m, New York) |
6 |
|
| Hereford Airport (1154 m, Texas) |
0 |
|
| Algona Airport (372 m, Iowa) |
0 |
|
| Waterbury (222 m, Connecticut) |
6 |
|
| Augusta State Airport (107 m, Maine) |
8 |
|
| Richmond Intl. Airport (54 m, Virginia) |
4 |
|
| Clarion Airport (354 m, Iowa) |
0 |
|
| Friedman Memorial Airport (1620 m, Idaho) |
4 |
|
| Pickle Lake(Man) (386 m, Ontario) |
6 |
|
| Wilmington Airport (24 m, Delaware) |
2 |
|
| Ashe County Airport (969 m, North Carolina) |
6 |
|
| Chester Airport (127 m, Connecticut) |
0 |
|
| Williamsport Regional Airport (160 m, Pennsylvania) |
0 |
|
| Massena Intl. Airport (65 m, New York) |
8 |
|
| Martin State Airport (7 m, Maryland) |
2 |
|
| Provo Airport (1369 m, Utah) |
8 |
|
| Ontario Airport (667 m, Oregon) |
0 |
|
| Salisbury (16 m, Maryland) |
2 |
|
| Oshawa (140 m, Ontario) |
7 |
1000-1500m |
| Lander/Hunt Field AP (1694 m, Wyoming) |
6 |
|
| Luray Caverns Airport (275 m, Virginia) |
0 |
|
| Del Rio Intl. Airport (314 m, Texas) |
2 |
|
| Lancaster Airport (123 m, Pennsylvania) |
0 |
|
| Pickle Lake Airport (391 m, Ontario) |
7 |
>2500m |
| Indiana (429 m, Pennsylvania) |
2 |
|
| Marine Corps Air Station Cherry Point (11 m, North Carolina) |
2 |
|
| Deming Airport (1313 m, New Mexico) |
0 |
|
| Frederick Regional Airport (377 m, Oklahoma) |
0 |
|
| Napa Airport (10 m, California) |
8 |
|
| Rowley Island (41 m, Nunavut) |
0 |
>2500m |
| Shepherd Bay AP (45 m, Nunavut) |
0 |
>2500m |
| Altus/Quartz Mountain Regional Airport (437 m, Oklahoma) |
0 |
|
| Annapolis (2 m, Maryland) |
0 |
|
| San Angelo Regional Airport (582 m, Texas) |
0 |
|
| Watertown Intl. Airport (99 m, New York) |
6 |
|
| Mountain Home Air Force Base (912 m, Idaho) |
4 |
|
| Blanc-Sablon Airport (32 m, Quebec) |
4 |
1500-2000m |
| Slave Lake (583 m, Alberta) |
4 |
2000-2500m |
| Cambridge Bay Airport (23 m, Nunavut) |
7 |
50-100m |
| Ozona Airport (726 m, Texas) |
0 |
|
| Montgomery Airport (164 m, Maryland) |
0 |
|
| Halliburton Field (339 m, Oklahoma) |
0 |
|
| Shively Field Airport (2138 m, Wyoming) |
6 |
|
| Wilmington Intl. Airport (10 m, North Carolina) |
0 |
>2500m |
| College Park Airport (15 m, Maryland) |
0 |
|
| Leesburg Executive Airport (119 m, Virginia) |
0 |
|
| Grand Forks Air Force Base (276 m, North Dakota) |
0 |
|
| Abraham Lincoln Capital Airport (187 m, Illinois) |
0 |
|
| Cape Parry AP (14 m, Northwest Territories) |
8 |
100-200m |
| Alliance Airport (1198 m, Nebraska) |
0 |
|
| Arthur N. Neu Airport (375 m, Iowa) |
0 |
|
| Custer Airport (1707 m, South Dakota) |
8 |
|
| Bradford Airport (653 m, Pennsylvania) |
6 |
|
| Tracy Airport (408 m, Minnesota) |
0 |
|
| CFB Borden (224 m, Ontario) |
4 |
600-1000m |
| Las Vegas Airport (2092 m, New Mexico) |
0 |
|
| Hay River Airport (170 m, Northwest Territories) |
7 |
600-1000m |
| Albion Airport (550 m, Nebraska) |
0 |
|
| Brookhaven Airport (25 m, New York) |
0 |
|
| Solon Springs Muni (336 m, Wisconsin) |
6 |
|
| Dalhart Airport (1216 m, Texas) |
0 |
|
| Stewart Intl. Airport (150 m, New York) |
4 |
|
| Key Lake Airport (514 m, Saskatchewan) |
8 |
300-600m |
| Nantucket Memorial Airport (13 m, Massachusetts) |
0 |
|
| Fitchburg Airport (106 m, Massachusetts) |
0 |
|
| Emporia Airport (39 m, Virginia) |
0 |
|
| Fredericton Intl. Airport (31 m, New Brunswick) |
8 |
300-600m |
| Spence Bay AP (28 m, Nunavut) |
6 |
|
| Coeur d'Alene Airport (707 m, Idaho) |
0 |
|
| Caldwell Airport (740 m, Idaho) |
0 |
|
| Moncton Airport (71 m, New Brunswick) |
8 |
100-200m |
| Stafford Regional Airport (65 m, Virginia) |
4 |
|
| Alva Regional Airport (449 m, Oklahoma) |
0 |
|
| Oscoda- Wurtsmith Airport (188 m, Michigan) |
0 |
|
| Culpeper Regional Airport (95 m, Virginia) |
0 |
|
| Beaufort Airport (3 m, South Carolina) |
0 |
|
| Sandpoint Airport (648 m, Idaho) |
0 |
|
North - South