| Stations: 849
|
Cloud Cover |
Cloud Base |
| Will Rogers World Airport (398 m, Oklahoma) |
4 |
>2500m |
| Magdalen Islands Airport (18 m, Quebec) |
0 |
300-600m |
| Resolute AP (67 m, Nunavut) |
3 |
200-300m |
| La Grande Iv (306 m, California) |
8 |
1000-1500m |
| Hector Intl. Airport (274 m, North Dakota) |
0 |
>2500m |
| Mary’s Harbour (11 m, Newfoundland) |
0 |
>2500m |
| Baie-Comeau Airport (22 m, Quebec) |
0 |
>2500m |
| Havre-Saint-Pierre (37 m, Quebec) |
2 |
>2500m |
| SwiftCurrent (820 m, Saskatchewan) |
8 |
100-200m |
| Wabush Airport (551 m, Newfoundland) |
8 |
1000-1500m |
| Alpena (211 m, Michigan) |
8 |
1000-1500m |
| Dryden Airport (413 m, Ontario) |
7 |
600-1000m |
| Brandon Airport (416 m, Manitoba) |
8 |
600-1000m |
| Saint-Hubert Airport (28 m, Quebec) |
0 |
>2500m |
| Rapid City Airport (965 m, South Dakota) |
6 |
>2500m |
| Kansas City Intl. Airport (313 m, Missouri) |
6 |
>2500m |
| Fort Simpson Airport (169 m, Northwest Territories) |
7 |
1500-2000m |
| Gander Airport (151 m, Newfoundland) |
7 |
1000-1500m |
| Saint John's AP (135 m, Newfoundland) |
7 |
1000-1500m |
| Coral Harbour Airport (64 m, Nunavut) |
7 |
300-600m |
| Jacksonville Intl. Airport (11 m, Florida) |
6 |
1000-1500m |
| Kuujjuaq Airport (44 m, Quebec) |
8 |
600-1000m |
| Cambridge Bay Airport (23 m, Nunavut) |
7 |
100-200m |
| Churchill Falls (440 m, California) |
7 |
1000-1500m |
| Englehart Airport (243 m, Ontario) |
2 |
600-1000m |
| Lethbridge (929 m, California) |
0 |
>2500m |
| Blanc-Sablon Airport (32 m, Quebec) |
7 |
200-300m |
| London Airport (278 m, Ontario) |
5 |
1000-1500m |
| Sanirajak (8 m, California) |
8 |
1000-1500m |
| Schefferville (517 m, Quebec) |
8 |
300-600m |
| Dallas Fort Worth Intl. Airport (182 m, Texas) |
4 |
300-600m |
| Saint-Pierre (24 m, Saint Pierre and Miquelon) |
6 |
2000-2500m |
| Sarnia Chris Hadfield Airport (181 m, Ontario) |
0 |
>2500m |
| Stephenville Intl. Airport (9 m, Newfoundland) |
7 |
300-600m |
| Kugluktuk Airport (23 m, Northwest Territories) |
8 |
300-600m |
| Cartwright Airport (15 m, Newfoundland) |
6 |
600-1000m |
| Columbia Regional Airport (274 m, Missouri) |
2 |
600-1000m |
| Hamilton Airport (238 m, Ontario) |
5 |
600-1000m |
| Windsor Airport (190 m, Ontario) |
5 |
>2500m |
| Sudbury Airport (348 m, Ontario) |
7 |
1000-1500m |
| Sydney Airport (72 m, Nova Scotia) |
4 |
2000-2500m |
| Halifax Airport (145 m, Nova Scotia) |
0 |
1000-1500m |
| Geraldton AP (349 m, Ontario) |
6 |
600-1000m |
| Cleveland Hopkins Intl. Airport (245 m, Ohio) |
4 |
>2500m |
| Detroit Metropolitan Airport (202 m, Michigan) |
4 |
>2500m |
| Indianapolis Intl. Airport (246 m, Indiana) |
6 |
1000-1500m |
| Fort Wayne Intl. Airport (252 m, Indiana) |
8 |
600-1000m |
| Peoria Airport (202 m, Illinois) |
2 |
600-1000m |
| Attawapiskat First Nation Airport (9 m, Ontario) |
7 |
>2500m |
| Fort Nelson Airport (389 m, British Columbia) |
3 |
>2500m |
| Vancouver Airport (4 m, British Columbia) |
1 |
>2500m |
| Terrace Airport (217 m, British Columbia) |
5 |
>2500m |
| Natashquan Airport (11 m, Quebec) |
4 |
50-100m |
| Nipawin Airport (374 m, Saskatchewan) |
8 |
1500-2000m |
| Yorkton Airport (498 m, Saskatchewan) |
8 |
200-300m |
| Kindersley Regional Airport (698 m, Saskatchewan) |
8 |
1000-1500m |
| Estevan Airport (584 m, Saskatchewan) |
8 |
200-300m |
| Sandspit (6 m, British Columbia) |
0 |
>2500m |
| Roberval Airport (187 m, Quebec) |
6 |
300-600m |
| Montreal Airport Trudeau (34 m, Quebec) |
6 |
600-1000m |
| La Grande Rivière Airport (195 m, Quebec) |
4 |
300-600m |
| Manhattan (48 m, New York) |
0 |
>2500m |
| Ronald Reagan Washington National Airpo (20 m, Virginia) |
4 |
1500-2000m |
| Michel-Pouliot Gaspé Airport (35 m, Quebec) |
4 |
1000-1500m |
| Burlington Intl. Airport (104 m, Vermont) |
4 |
>2500m |
| Milford Municipal (1536 m, Utah) |
0 |
>2500m |
| Deer Lake Airport (29 m, Newfoundland) |
7 |
600-1000m |
| San Antonio Intl. Airport (242 m, Texas) |
6 |
300-600m |
| Huron Airport (393 m, South Dakota) |
0 |
>2500m |
| Kapuskasing (227 m, Ontario) |
8 |
600-1000m |
| North Bay (370 m, Ontario) |
0 |
>2500m |
| Sandy Lake (289 m, Ontario) |
8 |
1000-1500m |
| Charleston Intl. Airport (15 m, South Carolina) |
2 |
1000-1500m |
| The Pas Airport (270 m, Manitoba) |
7 |
1000-1500m |
| Churchill Airport (29 m, Manitoba) |
0 |
>2500m |
| Island Lake Airport (235 m, Manitoba) |
7 |
2000-2500m |
| Sherbrooke Airport (242 m, Quebec) |
0 |
>2500m |
| Ottawa Int AP (114 m, Ontario) |
4 |
>2500m |
| Toronto/Pearson AP (173 m, Ontario) |
5 |
600-1000m |
| Val-d'Or (337 m, California) |
4 |
600-1000m |
| Matagami (280 m, California) |
4 |
300-600m |
| Fort Smith Regional Airport (141 m, Arkansas) |
0 |
>2500m |
| Wiarton Airport (223 m, Ontario) |
5 |
>2500m |
| Key West Airport (5 m, Florida) |
6 |
600-1000m |
| Muskrat Dam Airport (278 m, Ontario) |
8 |
1500-2000m |
| Gerald R. Ford Intl. Airport (245 m, Michigan) |
8 |
300-600m |
| Buffalo Niagara Intl. Airport (219 m, New York) |
6 |
>2500m |
| Charlotte Douglas Intl. Airport (234 m, North Carolina) |
6 |
1000-1500m |
| Wilmington Intl. Airport (10 m, North Carolina) |
0 |
>2500m |
| Sable Island (1 m, Nova Scotia) |
0 |
>2500m |
| Arviat (10 m, Nunavut) |
0 |
>2500m |
| Medicine Hat (717 m, Alberta) |
8 |
1500-2000m |
| North Battleford Airport (548 m, Saskatchewan) |
8 |
2000-2500m |
| CFB Borden (224 m, Ontario) |
7 |
600-1000m |
| Fredericton Intl. Airport (31 m, New Brunswick) |
0 |
>2500m |
| Moncton Airport (71 m, New Brunswick) |
4 |
600-1000m |
| Wawa (287 m, Ontario) |
8 |
1000-1500m |
| Kinngait Airport (50 m, Nunavut) |
8 |
300-600m |
| Rankin Inlet Airport (29 m, Nunavut) |
1 |
300-600m |
| Prince Rupert (35 m, British Columbia) |
0 |
>2500m |
| Waterloo Well AP (315 m, Ontario) |
0 |
>2500m |
| Tadoule Lake (281 m, Manitoba) |
0 |
>2500m |
| Villeneuve Airport (270 m, Alberta) |
0 |
>2500m |
| Lloydminster Airport (669 m, Alberta) |
2 |
>2500m |
| Edmonton Namao (685 m, Alberta) |
4 |
2000-2500m |
| Penticton Airport (344 m, British Columbia) |
0 |
>2500m |
| Hope Aerodrome (39 m, British Columbia) |
0 |
>2500m |
| Norway House Airport (223 m, Manitoba) |
7 |
>2500m |
| Thompson Airport (216 m, Manitoba) |
7 |
300-600m |
| Dauphin Airport (305 m, Manitoba) |
8 |
300-600m |
| Nain (12 m, Newfoundland) |
6 |
600-1000m |
| Yarmouth Airport (46 m, Nova Scotia) |
7 |
>2500m |
| Port Hawkesbury Airport (114 m, Nova Scotia) |
2 |
1000-1500m |
| Eureka Airport (11 m, Nunavut) |
0 |
300-600m |
| Gjoa Haven Airport (46 m, Nunavut) |
7 |
2000-2500m |
| Kenora Airport (406 m, Ontario) |
7 |
300-600m |
| Timmins Victor M. Power Airport (295 m, Ontario) |
8 |
>2500m |
| Toronto Islands Airport (77 m, Ontario) |
0 |
>2500m |
| Moosonee (9 m, Ontario) |
8 |
200-300m |
| Chapleau Airport (447 m, Ontario) |
8 |
300-600m |
| Peterborough (191 m, Ontario) |
0 |
>2500m |
| District (281 m, Ontario) |
0 |
>2500m |
| Charlottetown Airport (79 m, Prince Edward Island) |
4 |
600-1000m |
| Mont-Joli Airport (54 m, Quebec) |
7 |
600-1000m |
| CFB Valcartier Airport (168 m, Quebec) |
4 |
300-600m |
| Prince Albert Airport (428 m, Saskatchewan) |
8 |
2000-2500m |
| Jimmy Lake (636 m, Saskatchewan) |
7 |
2000-2500m |
| Burwash Landing Airport (807 m, Yukon) |
0 |
>2500m |
| Beresford Airport (59 m, New Brunswick) |
7 |
600-1000m |
North - South