| Stations: 2817
|
Cloud Cover |
Cloud Base |
| Cheyenne County Airport (1040 m, Kansas) |
0 |
|
| Nain (12 m, Newfoundland) |
8 |
300-600m |
| Yorkton Airport (498 m, Saskatchewan) |
8 |
2000-2500m |
| Winner Regional Airport (619 m, South Dakota) |
4 |
|
| Baker Lake Airport (18 m, Nunavut) |
8 |
600-1000m |
| Dixon Airport (1996 m, Wyoming) |
4 |
|
| Walhalla Airport (291 m, North Dakota) |
0 |
|
| Mojave Air and Space Port Airport (849 m, California) |
0 |
|
| Casper (1612 m, Wyoming) |
0 |
|
| St.Anthony A (32 m, Newfoundland) |
0 |
>2500m |
| Dauphin Airport (305 m, Manitoba) |
7 |
>2500m |
| Travis Air Force Base (22 m, California) |
2 |
|
| Buchanan Field Airport (7 m, California) |
0 |
|
| Havre-Saint-Pierre (37 m, Quebec) |
2 |
>2500m |
| Natashquan Airport (11 m, Quebec) |
0 |
>2500m |
| Naval Air Facility El Centro (-13 m, California) |
0 |
|
| Tonopah Airport (1654 m, Nevada) |
0 |
|
| Rowley Island (41 m, Nunavut) |
0 |
>2500m |
| Kugluktuk Airport (23 m, Nunavut) |
8 |
200-300m |
| Ellsworth Air Force Base (979 m, South Dakota) |
0 |
|
| Ainsworth Regional Airport (789 m, Nebraska) |
0 |
|
| Rolla Airport (556 m, North Dakota) |
0 |
|
| Havre-Saint-Pierre (34 m, Quebec) |
2 |
|
| Winnipeg Airport (239 m, Manitoba) |
0 |
|
| Converse (1502 m, Wyoming) |
0 |
|
| Venice Airport (6 m, Florida) |
8 |
|
| Edwards Air Force Base (705 m, California) |
0 |
|
| General William J. Fox Airfield (712 m, California) |
0 |
|
| Chadron Airport (1011 m, Nebraska) |
0 |
|
| Gila Bend Airport (269 m, Arizona) |
0 |
|
| Jacqueline Cochran Regional Airport (-36 m, California) |
0 |
|
| Rankin Inlet Airport (29 m, Nunavut) |
8 |
50-100m |
| Cambridge Bay Airport (23 m, Nunavut) |
7 |
50-100m |
| Nellis Air Force Base (570 m, Nevada) |
0 |
|
| Mitchell Airport (397 m, South Dakota) |
6 |
|
| Henderson Executive Airport (749 m, Nevada) |
0 |
|
| Inukjuak (25 m, Quebec) |
7 |
100-200m |
| Southport Airport (8 m, North Carolina) |
6 |
|
| Mondell Fld AP (1272 m, Wyoming) |
0 |
|
| Meadow Lake Airport (2095 m, Colorado) |
4 |
|
| Huron Airport (393 m, South Dakota) |
6 |
>2500m |
| Kit Carson County Airport (1285 m, Colorado) |
4 |
|
| Lamar Airport (1129 m, Colorado) |
8 |
|
| Aberdeen Airport (397 m, South Dakota) |
0 |
|
| Kingman Airport (1033 m, Arizona) |
0 |
|
| Oakland Intl. Airport (6 m, California) |
8 |
|
| Lake Havasu City Airport (238 m, Arizona) |
0 |
|
| Winslow- Lindbergh Regional Airport (1488 m, Arizona) |
0 |
|
| Stockton Metropolitan Airport (8 m, California) |
0 |
|
| Saint-Pierre (24 m, Saint Pierre and Miquelon) |
0 |
>2500m |
| Las Vegas Airport (2092 m, New Mexico) |
0 |
|
| Kuujjuaq Airport (44 m, Quebec) |
5 |
100-200m |
| Twentynine Palms Airport (626 m, California) |
0 |
|
| Sacramento Intl. Airport (7 m, California) |
0 |
|
| Lakefront Airport (3 m, Louisiana) |
0 |
|
| Jimmy Lake (636 m, Saskatchewan) |
7 |
1000-1500m |
| Ephrata Airport (383 m, Washington) |
0 |
|
| Sacramento McClellan Airport (23 m, California) |
0 |
|
| Bicycle Lake Army Airfield (716 m, California) |
0 |
|
| Medicine Hat (717 m, Alberta) |
2 |
>2500m |
| Palmdale Regional Airport (774 m, California) |
0 |
|
| Blanc-Sablon Airport (32 m, Quebec) |
4 |
1500-2000m |
| Dickinson Theodore Roosevelt Regional A (787 m, North Dakota) |
0 |
|
| Saint John's AP (135 m, Newfoundland) |
0 |
>2500m |
| Regina Airport (577 m, Saskatchewan) |
8 |
|
| Cut Bank Airport (1169 m, Montana) |
0 |
|
| Magdalen Islands Airport (18 m, Quebec) |
2 |
>2500m |
| Devils Lake Regional Airport (443 m, North Dakota) |
0 |
|
| Beale Air Force Base (38 m, California) |
0 |
|
| Hat Isl. (36 m, Nunavut) |
8 |
50-100m |
| Miller Field Airport (792 m, Nebraska) |
0 |
|
| Blythe Airport (118 m, California) |
0 |
|
| Port Aransas Airport (2 m, Texas) |
4 |
|
| Oroville Airport (57 m, California) |
0 |
|
| Nut Tree Airport (34 m, California) |
0 |
|
| Naval Air Station Corpus Christi (6 m, Texas) |
4 |
|
| Imperial (997 m, Nebraska) |
0 |
|
| Burns Airport (1271 m, Oregon) |
0 |
|
| Killeen (283 m, Texas) |
2 |
|
| Lytton Airport (225 m, British Columbia) |
8 |
|
| Estevan Airport (584 m, Saskatchewan) |
8 |
>2500m |
| Tehachapi Airport (1220 m, California) |
0 |
|
| University of Illinois Willard Airport (230 m, Illinois) |
8 |
|
| Hall Beach Airport (7 m, Nunavut) |
0 |
|
| Del Rio Intl. Airport (314 m, Texas) |
0 |
|
| Sept-Îles Airport (55 m, Quebec) |
2 |
|
| Fort St. John AP (695 m, British Columbia) |
6 |
1500-2000m |
| Rick Husband Amarillo Intl. Airport (1094 m, Texas) |
0 |
>2500m |
| Mission Field (1418 m, Montana) |
6 |
|
| Gander Airport (151 m, Newfoundland) |
6 |
2000-2500m |
| Sidney Airport (1312 m, Nebraska) |
0 |
|
| Rickenbacker Intl. Airport (227 m, Ohio) |
8 |
|
| Madison Airport (523 m, South Dakota) |
0 |
|
| O'Neill Airport (619 m, Nebraska) |
4 |
|
| Schefferville (517 m, Quebec) |
7 |
1000-1500m |
| Thedford Airport (892 m, Nebraska) |
0 |
|
| Mobridge Airport (508 m, South Dakota) |
2 |
|
| Ely Airport (1909 m, Nevada) |
2 |
|
| Wabush Airport (551 m, Newfoundland) |
4 |
1000-1500m |
| Mercury/Desert Rock (1006 m, Nevada) |
0 |
|
| Shively Field Airport (2138 m, Wyoming) |
0 |
|
| Central Illinois Regional Airport (267 m, Illinois) |
2 |
|
| Mary’s Harbour (11 m, Newfoundland) |
7 |
1000-1500m |
| Lake County Airport (1441 m, Oregon) |
0 |
|
| Artesia Airport (1081 m, New Mexico) |
4 |
|
| Clovis Airport (1284 m, New Mexico) |
6 |
|
| Moncton Airport (71 m, New Brunswick) |
1 |
>2500m |
| Delta Airport (1451 m, Utah) |
0 |
|
| Show Low Regional Airport (1954 m, Arizona) |
0 |
|
| Bowers Airport (527 m, Washington) |
0 |
|
| Phoenix (422 m, Arizona) |
0 |
|
| Wilmington Airport (326 m, Pennsylvania) |
2 |
|
| Omak Airport (382 m, Washington) |
6 |
|
| Maverick County Memorial IAP (270 m, Texas) |
0 |
|
| Yellowknife Airport (206 m, Northwest Territories) |
7 |
600-1000m |
| Port Fourchon Terminal (2 m, Louisiana) |
8 |
|
| Hay River Airport (170 m, Northwest Territories) |
3 |
1000-1500m |
| Cape Peel West (165 m, Northwest Territories) |
8 |
1000-1500m |
| University Park Airport (378 m, Pennsylvania) |
8 |
|
| Grand Junction Regional Airport (1472 m, Colorado) |
0 |
|
| Del Norte Airport (2425 m, Colorado) |
0 |
|
| Colorado Plains Regional Airport (1421 m, Colorado) |
2 |
|
| Saint George (869 m, Utah) |
0 |
|
| Corvallis Airport (75 m, Oregon) |
0 |
|
| La Junta Airport (1278 m, Colorado) |
0 |
|
| Baltimore Airport (47 m, Maryland) |
8 |
|
| Capital City Airport (106 m, Pennsylvania) |
8 |
|
| Harrisburg Intl. Airport (94 m, Pennsylvania) |
8 |
|
| Ocean (4 m, Maryland) |
8 |
|
| Hermiston Airport (195 m, Oregon) |
0 |
|
| York Airport (144 m, Pennsylvania) |
8 |
|
| Cando Airport (450 m, North Dakota) |
0 |
|
| Dover Air Force Base (9 m, Delaware) |
8 |
|
| Baie-Comeau Airport (22 m, Quebec) |
0 |
>2500m |
| Provo Airport (1369 m, Utah) |
0 |
|
| Milford Municipal (1536 m, Utah) |
0 |
>2500m |
| Hector Intl. Airport (274 m, North Dakota) |
0 |
>2500m |
| Kinngait Airport (50 m, Nunavut) |
8 |
1000-1500m |
| Eureka Airport (11 m, Nunavut) |
7 |
>2500m |
| Imperial County AP (-17 m, California) |
0 |
|
| Rocksprings Airport (723 m, Texas) |
0 |
|
| Lytton (225 m, British Columbia) |
8 |
1500-2000m |
| Oakes Airport (400 m, North Dakota) |
2 |
|
| Miley Memorial Field Airport (2124 m, Wyoming) |
0 |
|
| Yuba (19 m, California) |
0 |
|
| Arviat (10 m, Nunavut) |
8 |
>2500m |
| Siskiyou (807 m, California) |
0 |
|
| Jamestown Regional Airport (454 m, North Dakota) |
6 |
|
| Red Deer Regional Airport (904 m, Alberta) |
8 |
300-600m |
| Calgary Intl. Airport (1084 m, Alberta) |
5 |
1500-2000m |
| Boise Airport (872 m, Idaho) |
0 |
|
| Caldwell Airport (740 m, Idaho) |
0 |
|
| Sacramento Executive Airport (8 m, California) |
0 |
|
| Sanirajak (8 m, California) |
0 |
>2500m |
| Churchill Airport (29 m, Manitoba) |
7 |
>2500m |
| Laughlin Air Force Base (327 m, Texas) |
8 |
|
| Fergus Falls Airport (361 m, Minnesota) |
0 |
|
| Southwest Minnesota Regional Airport (359 m, Minnesota) |
0 |
|
| Laramie Airport (2218 m, Wyoming) |
8 |
|
| Gillette (1230 m, Wyoming) |
0 |
|
| Laredo Intl. Airport (155 m, Texas) |
0 |
|
| Draughon- Miller Central Texas Regional (208 m, Texas) |
0 |
|
| Naval Air Station Lemoore (73 m, California) |
0 |
|
| Moorhead Airport (280 m, Minnesota) |
0 |
|
| Cold Lake Airport (541 m, Alberta) |
8 |
|
| Davis Airport (21 m, California) |
0 |
|
| Georgetown Airport (240 m, Texas) |
0 |
|
| Mont-Joli Airport (54 m, Quebec) |
0 |
>2500m |
| Scholes International Airport at Galves (16 m, Texas) |
2 |
|
| Rexburg (1481 m, Idaho) |
6 |
|
| Annapolis (2 m, Maryland) |
8 |
|
| Wayne County Airport (294 m, Kentucky) |
8 |
|
| Wilmington Airport (24 m, Delaware) |
8 |
|
| Crookston Airport (273 m, Minnesota) |
0 |
|
| Custer Airport (1707 m, South Dakota) |
0 |
|
| Price/Carbon (1799 m, Utah) |
0 |
|
| Michael J. Smith Field (3 m, North Carolina) |
2 |
|
| Brookings Regional Airport (502 m, South Dakota) |
0 |
|
| Pipestone Airport (529 m, Minnesota) |
0 |
|
| Cedar City Regional Airport (1714 m, Utah) |
0 |
|
| Ontario Airport (667 m, Oregon) |
0 |
|
| Wheaton Airport (313 m, Minnesota) |
0 |
|
| Flagstaff/Belemont (2181 m, Arizona) |
0 |
>2500m |
| Brooksville- Tampa Bay Regional Airport (20 m, Florida) |
8 |
|
| Chamberlain (530 m, South Dakota) |
4 |
|
| Naval Auxiliary Landing Field Orange Gr (78 m, Texas) |
6 |
|
| Slayton Airport (495 m, Minnesota) |
0 |
|
| North Las Vegas Airport (671 m, Nevada) |
0 |
|
| Skylark Field (258 m, Texas) |
0 |
|
| Naval Air Station Jacksonville (7 m, Florida) |
8 |
|
| Harry Reid Intl. Airport (664 m, Nevada) |
6 |
|
| Naval Station Mayport (5 m, Florida) |
8 |
|
| Okmulgee Regional Airport (219 m, Oklahoma) |
4 |
|
| Bowman Field (167 m, Kentucky) |
2 |
|
| Port Isabel AP (5 m, Texas) |
0 |
|
| Zapata Airport (129 m, Texas) |
0 |
|
| Orlando Executive Airport (34 m, Florida) |
0 |
|
| Louisville Intl. Airport (149 m, Kentucky) |
6 |
1500-2000m |
| Blue Grass Airport (301 m, Kentucky) |
0 |
|
| Covington Airport (267 m, Kentucky) |
0 |
|
| Resolute AP (67 m, Nunavut) |
8 |
100-200m |
| Hayward Executive Airport (14 m, California) |
8 |
|
| Alice Intl. Airport (52 m, Texas) |
4 |
|
| Alliance Airport (1198 m, Nebraska) |
0 |
|
| Colby Airport (971 m, Kansas) |
4 |
|
| Worthington (480 m, Minnesota) |
0 |
|
| Hanford Airport (75 m, California) |
0 |
|
| Harvey Airport (487 m, North Dakota) |
8 |
|
| Cavalier Airport (270 m, North Dakota) |
0 |
|
| Roberval Airport (187 m, Quebec) |
1 |
600-1000m |
| Tioga Airport (684 m, North Dakota) |
0 |
|
| Hastings Airport (596 m, Nebraska) |
0 |
|
| Crosby Airport (594 m, North Dakota) |
6 |
|
| Knox County Airport (363 m, Ohio) |
0 |
|
| Shepherd Bay AP (45 m, Nunavut) |
4 |
2000-2500m |
| Elkhart (1099 m, Kansas) |
8 |
|
| Livermore Airport (121 m, California) |
0 |
|
| Central Nebraska Regional Airport (566 m, Nebraska) |
0 |
|
| Lethbridge (929 m, Alberta) |
0 |
>2500m |
| Atlanta Airport (315 m, Georgia) |
2 |
|
| Jackson Hole Airport (1964 m, Wyoming) |
0 |
|
| Savannah/Hilton Head Intl. Airport (15 m, Georgia) |
0 |
|
| Coleman A. Young Intl. Airport (191 m, Michigan) |
0 |
|
| North Platte Regional Airport (849 m, Nebraska) |
0 |
>2500m |
| McAllen Miller Intl. Airport (33 m, Texas) |
0 |
|
| Grand Forks Intl. Airport (255 m, North Dakota) |
0 |
|
| Dyess Air Force Base (545 m, Texas) |
4 |
|
| Modesto (30 m, California) |
0 |
|
| McKinnon St. Simons (6 m, Georgia) |
0 |
|
| Park Rapids Municip (437 m, Minnesota) |
0 |
|
| Sable Island (1 m, Nova Scotia) |
0 |
>2500m |
| Kickapoo Downtown Airport (304 m, Texas) |
6 |
|
| Sioux Gateway Airport (336 m, Iowa) |
0 |
|
| Mansfield Lahm Regional Airport (395 m, Ohio) |
0 |
|
| Napa Airport (10 m, California) |
0 |
|
| Needles Airport (302 m, California) |
0 |
|
| Sky Harbor Airport & Seaplane Base (186 m, Minnesota) |
8 |
|
| Malmstrom Air Force Base (1056 m, Montana) |
6 |
|
| Goose (49 m, Newfoundland) |
6 |
|
| Great Falls Intl. Airport (1116 m, Montana) |
2 |
|
| Sidney- Richland Airport (605 m, Montana) |
6 |
|
| North Central State Airport (134 m, Rhode Island) |
0 |
|
| Churchill Falls (440 m, California) |
7 |
1500-2000m |
| La Grande Iv (306 m, California) |
4 |
300-600m |
North - South