| Stations: 2274
|
SLP tendency |
| Aberdeen Airport (397 m, South Dakota) |
+ 1.5 |
| Abilene Airport (546 m, Texas) |
+ 0.4 |
| Adak (5 m, Alaska) |
- 1.0 |
| Akron- Canton Airport (377 m, Ohio) |
+ 0.2 |
| Albany Airport (89 m, New York) |
- 0.4 |
| Albuquerque Airport (1618 m, New Mexico) |
+ 1.2 |
| Allen Army Airfield (391 m, Alaska) |
- 0.5 |
| Alpena (211 m, Michigan) |
- 0.7 |
| Aniak Airport (26 m, Alaska) |
+ 0.4 |
| Apalachicola Airport (6 m, Florida) |
+ 1.9 |
| Arcata (18 m, California) |
- 0.4 |
| Asheville Regional Airport (661 m, North Carolina) |
+ 1.4 |
| Astoria Regional Airport (7 m, Oregon) |
- 0.2 |
| Athens (247 m, Georgia) |
+ 2.3 |
| Atlanta Airport (315 m, Georgia) |
+ 2.3 |
| Atlantic City Airport (20 m, New Jersey) |
+ 0.6 |
| Augusta Regional Airport (45 m, Georgia) |
+ 1.3 |
| Baltimore Airport (47 m, Maryland) |
- 0.2 |
| Barkley Regional Airport (126 m, Kentucky) |
+ 2.6 |
| Bethel Airport (44 m, Alaska) |
+ 0.1 |
| Billings Logan Intl. Airport (1088 m, Montana) |
+ 0.3 |
| Bishop Intl. Airport (233 m, Michigan) |
+ 0.9 |
| Bismarck Airport (505 m, North Dakota) |
+ 1.1 |
| Blosser Airport (452 m, Kansas) |
+ 0.3 |
| Blue Grass Airport (301 m, Kentucky) |
+ 1.1 |
| Boise Airport (872 m, Idaho) |
+ 0.3 |
| Bradley Intl. Airport (55 m, Connecticut) |
+ 0.7 |
| Buffalo Niagara Intl. Airport (219 m, New York) |
- 1.4 |
| Burlington Intl. Airport (104 m, Vermont) |
- 0.6 |
| Burns Airport (1271 m, Oregon) |
- 0.4 |
| Cageri (474 m, Georgia) |
- 1.0 |
| Capital Region Intl. Airport (266 m, Michigan) |
+ 1.8 |
| Caribou Airport (191 m, Maine) |
+ 0.6 |
| Casper (1612 m, Wyoming) |
+ 0.8 |
| Central Nebraska Regional Airport (566 m, Nebraska) |
+ 0.9 |
| Charleston Intl. Airport (15 m, South Carolina) |
+ 0.9 |
| Charlotte Douglas Intl. Airport (234 m, North Carolina) |
+ 1.2 |
| Chattanooga Metropolitan Airport (210 m, Tennessee) |
- 0.7 |
| Cheyenne Regional Airport (1872 m, Wyoming) |
+ 0.2 |
| Clayton Municipal Airpark (1515 m, New Mexico) |
- 0.2 |
| Cleveland Hopkins Intl. Airport (245 m, Ohio) |
+ 1.4 |
| Cold Bay Airport (31 m, Alaska) |
+ 0.4 |
North - South