| Stations: 474
|
Humidity |
| Zephyrhills Airport (27 m, Florida) |
55 % |
| York Airport (509 m, Nebraska) |
50 % |
| Yarmouth Airport (46 m, Nova Scotia) |
95 % |
| Wood County Airport (132 m, Texas) |
40 % |
| Winona-Montgomery County Airport (111 m, Mississippi) |
30 % |
| Wings Field (92 m, Pennsylvania) |
85 % |
| Windham Airport (76 m, Connecticut) |
85 % |
| Wilmington Intl. Airport (10 m, North Carolina) |
95 % |
| Willoughby (191 m, Ohio) |
45 % |
| Williamsburg Intl. Airport (13 m, Virginia) |
95 % |
| Wilkes County Airport (396 m, North Carolina) |
25 % |
| Wheeler-Sack Army Airfield (207 m, New York) |
50 % |
| Westover Metropolitan Airport (75 m, Massachusetts) |
85 % |
| Westfield-Barnes Regional Airport (83 m, Massachusetts) |
80 % |
| Western Carolina Regional Airport (517 m, North Carolina) |
20 % |
| Westerly State Airport (25 m, Rhode Island) |
95 % |
| Webster City (342 m, Iowa) |
50 % |
| Wayne Executive Jetport (41 m, North Carolina) |
95 % |
| Waycross (46 m, Georgia) |
70 % |
| Waupaca Airport (252 m, Wisconsin) |
30 % |
| Watsonville Airport (48 m, California) |
85 % |
| Watonga Regional Airport (472 m, Oklahoma) |
50 % |
| Watertown Airport (254 m, Wisconsin) |
60 % |
| Washington Airport (197 m, Georgia) |
35 % |
| Warsaw Airport (259 m, Indiana) |
45 % |
| Warroad International Memorial Airport (327 m, Minnesota) |
55 % |
| Warren Airport (12 m, North Carolina) |
95 % |
| Wallops Flight Facility Airport (12 m, Virginia) |
95 % |
| Wabush Airport (551 m, Newfoundland) |
75 % |
| W. H. 'Bud' Barron Airport (94 m, Georgia) |
45 % |
| Vidalia Regional Airport (84 m, Georgia) |
60 % |
| Vernon (386 m, Texas) |
50 % |
| Vandenberg Space Force Base (112 m, California) |
80 % |
| Val-d'Or (345 m, Quebec) |
55 % |
| Val-d'Or (337 m, California) |
55 % |
| Triangle North Executive Airport (113 m, North Carolina) |
85 % |
| Tri-County Airport (21 m, North Carolina) |
95 % |
| Tomahawk Airport (453 m, Wisconsin) |
45 % |
| Toccoa Airport (304 m, Georgia) |
15 % |
| Tipton Airport (46 m, Maryland) |
60 % |
| Tillamook Airport (11 m, Oregon) |
95 % |
| Thomson Airport (152 m, Georgia) |
45 % |
| Thomasville Regional Airport (80 m, Georgia) |
50 % |
| Thedford Airport (892 m, Nebraska) |
20 % |
| Teterboro Airport (3 m, New Jersey) |
85 % |
| Taylorville Airport (190 m, Illinois) |
45 % |
| Taunton Airport (13 m, Massachusetts) |
85 % |
| Tarboro Airport (16 m, North Carolina) |
95 % |
| Talladega Airport (161 m, Alabama) |
20 % |
| Tahlequah Airport (266 m, Oklahoma) |
35 % |
| Sylvania Airport (57 m, Georgia) |
65 % |
| Susanville Airport (1263 m, California) |
55 % |
| Sulphur Springs Airport (149 m, Texas) |
40 % |
| Stuart Powell Field (312 m, Kentucky) |
40 % |
| Storm Lake Airport (454 m, Iowa) |
70 % |
| Stigler Regional Airport (183 m, Oklahoma) |
45 % |
| Stevens Field (2334 m, Colorado) |
35 % |
| Steamboat Springs Airport (2096 m, Colorado) |
55 % |
| Statesville Muni Ai (294 m, North Carolina) |
20 % |
| Statesboro- Bulloch County Airport (57 m, Georgia) |
65 % |
| Stanly County Airport (186 m, North Carolina) |
50 % |
| Stan Stamper Airport (174 m, Oklahoma) |
40 % |
| Stampede (1206 m, Washington) |
95 % |
| St. George Island Airport (38 m, Alaska) |
95 % |
| Springbank (1201 m, Alberta) |
75 % |
| Southport Airport (8 m, North Carolina) |
95 % |
| South Texas International Airport at Edinburg (24 m, Texas) |
40 % |
| South County Arpt Of Santa Clara County (86 m, California) |
70 % |
| Solon Springs Muni (336 m, Wisconsin) |
45 % |
| Slave Lake Airport (583 m, Alberta) |
60 % |
| Slave Lake (583 m, Alberta) |
60 % |
| Skagit Regional Airport (44 m, Washington) |
65 % |
| Simmons Army Airfield (74 m, North Carolina) |
75 % |
| Siler City Muni (187 m, North Carolina) |
70 % |
| Sikorsky Memorial Airport (5 m, Connecticut) |
95 % |
| Sierra Vista Airport (1421 m, Arizona) |
20 % |
| Shuttle Landing Facility (3 m, Florida) |
70 % |
| Shively Field Airport (2138 m, Wyoming) |
25 % |
| Shenandoah Muni (296 m, Iowa) |
40 % |
| Sheldon (432 m, Iowa) |
60 % |
| Shelby Airport (258 m, North Carolina) |
25 % |
| Shawnee Regional Airport (327 m, Oklahoma) |
30 % |
| Seymour Johnson Air Force Base (33 m, North Carolina) |
95 % |
| Seminole Airport (1010 m, Texas) |
10 % |
| Selawik Airport (8 m, Alaska) |
90 % |
| Savannah-hardin County (144 m, Tennessee) |
35 % |
| Savanna Airport (188 m, Illinois) |
50 % |
| Santa Ynez Airport (205 m, California) |
70 % |
| Sandpoint Airport (648 m, Idaho) |
65 % |
| Sandersville Airport (134 m, Georgia) |
45 % |
| Sanderson Field Airport (85 m, Washington) |
85 % |
| Sand Point Airport (7 m, Alaska) |
80 % |
| Salt Lake City Intl. Airport (1288 m, Utah) |
55 % |
| Salluit Airport (226 m, Quebec) |
80 % |
| Salisbury (16 m, Maryland) |
95 % |
| Salem-Leckrone (174 m, Illinois) |
35 % |
| Saint-Pierre (24 m, Saint Pierre and Miquelon) |
100 % |
| Rutherfordton (329 m, North Carolina) |
20 % |
| Ruston Regional Airport (95 m, Louisiana) |
30 % |
| Ross County Airport (221 m, Ohio) |
40 % |
| Rocky Mountain Metropolitan Airport (1724 m, Colorado) |
15 % |
| Rocky Mount- Wilson Regional Airport (48 m, North Carolina) |
85 % |
| Rocksprings Airport (723 m, Texas) |
25 % |
| Robstown Airport (24 m, Texas) |
45 % |
| Richmond Intl. Airport (54 m, Virginia) |
70 % |
| Richmond County Airport (109 m, North Carolina) |
70 % |
| Rhode (19 m, Rhode Island) |
95 % |
| Rexburg (1481 m, Idaho) |
85 % |
| Revelstoke Airport (443 m, British Columbia) |
70 % |
| Republic Airport (25 m, New York) |
95 % |
| Reedsburg Airport (276 m, Wisconsin) |
40 % |
| Redding Airport (153 m, California) |
60 % |
| Red Oak Airport (318 m, Iowa) |
55 % |
| Red Deer Regional Airport (904 m, Alberta) |
85 % |
| Rantoul National Aviation Center (225 m, Illinois) |
35 % |
| Ralph Wien Memorial Airport (5 m, Alaska) |
100 % |
| Ralph Wenz Field (2160 m, Wyoming) |
100 % |
| Raleigh Executive Jetport (75 m, North Carolina) |
80 % |
| Quesnel Airport (545 m, British Columbia) |
85 % |
| Quesnal (545 m, British Columbia) |
85 % |
| Presque Isle Intl. Airport (146 m, Maine) |
95 % |
| Pratt Regional Airport (595 m, Kansas) |
30 % |
| Powell Airport (1552 m, Wyoming) |
35 % |
| Port Aransas Airport (2 m, Texas) |
60 % |
| Pope Field (61 m, North Carolina) |
75 % |
| Pontiac Airport (201 m, Illinois) |
35 % |
| Pompano Beach Airport (7 m, Florida) |
60 % |
| Point Hope Airport (4 m, Alaska) |
90 % |
| Pocono Mountains Airport (584 m, Pennsylvania) |
85 % |
| Pleasanton Airport (131 m, Texas) |
45 % |
| Plattsmouth Airport (366 m, Nebraska) |
45 % |
| Platteville Airport (312 m, Wisconsin) |
40 % |
| Platinum Airport (5 m, Alaska) |
85 % |
| Placerville Airport (788 m, California) |
70 % |
| Pitt- Greenville Airport (8 m, North Carolina) |
95 % |
| Pickle Lake(Man) (386 m, Ontario) |
75 % |
| Pickle Lake Airport (391 m, Ontario) |
75 % |
| Person County Airport (186 m, North Carolina) |
85 % |
| Perry-Houston County Airport (127 m, Georgia) |
35 % |
| Penticton Airport (344 m, British Columbia) |
75 % |
| Pella Airport (270 m, Iowa) |
45 % |
| Pecos Airport (796 m, Texas) |
10 % |
| Paulding Northwest Atlanta Airport (393 m, Georgia) |
25 % |
| Pampa (989 m, Texas) |
30 % |
| Palestine Airport (129 m, Texas) |
40 % |
| Ozona Airport (726 m, Texas) |
20 % |
| Oskaloosa Airport (256 m, Iowa) |
45 % |
| Osceola Muni (338 m, Iowa) |
50 % |
| Osceola Airport (275 m, Wisconsin) |
45 % |
| Orangeburg Airport (60 m, South Carolina) |
65 % |
| Orange County Airport (4 m, Texas) |
35 % |
| Omak Airport (382 m, Washington) |
75 % |
| Olney-Noble (147 m, Illinois) |
30 % |
| Okmulgee Regional Airport (219 m, Oklahoma) |
40 % |
| Okeechobee Airport (10 m, Florida) |
65 % |
| Ogoki Post Airport (181 m, Ontario) |
75 % |
| Ogdensburg Intl. Airport (91 m, New York) |
45 % |
| Oelwen (328 m, Iowa) |
35 % |
| Oceanside Airport (9 m, California) |
65 % |
| Oakland Intl. Airport (6 m, California) |
80 % |
| O'Neill Airport (619 m, Nebraska) |
75 % |
| Northern Aroostook Regional Airport (301 m, Maine) |
85 % |
| Northeastern Regional Airport (6 m, North Carolina) |
95 % |
| Northeast Philadelphia Airport (37 m, Pennsylvania) |
75 % |
| Northeast Iowa Regional Airport (343 m, Iowa) |
40 % |
| Norfolk Intl. Airport (9 m, Virginia) |
85 % |
| Nikolai Airport (126 m, Alaska) |
85 % |
| Newton Airport (290 m, Iowa) |
55 % |
| Newberry County Airport (173 m, South Carolina) |
35 % |
| New Richmond Regional Airport (304 m, Wisconsin) |
45 % |
| New Bedford Regional Airport (23 m, Massachusetts) |
85 % |
| Nebraska City Airport (354 m, Nebraska) |
35 % |
| Naval Station Norfolk (5 m, Virginia) |
95 % |
| Naval Air Station Key West (2 m, Florida) |
75 % |
| Muscatine Airport (167 m, Iowa) |
40 % |
| Mullan Pass (1829 m, Idaho) |
85 % |
| Mount Shasta (1077 m, California) |
85 % |
| Mount Pleasant Airport (224 m, Iowa) |
45 % |
| Mount Pleasant Airport (111 m, Texas) |
40 % |
| Mount Airy/Surry (380 m, North Carolina) |
25 % |
| Morrisville- Stowe State Airport (223 m, Vermont) |
70 % |
| Moosonee Airport (9 m, Quebec) |
85 % |
| Moosonee (9 m, Ontario) |
85 % |
| Moore County Airport (1129 m, Texas) |
20 % |
| Moody Air Force Base (71 m, Georgia) |
65 % |
| Monticello Regional Airport (259 m, Iowa) |
40 % |
| Mont-Joli Airport (54 m, Quebec) |
100 % |
| Moncton Airport (71 m, New Brunswick) |
95 % |
| Mojave Air and Space Port Airport (849 m, California) |
50 % |
| Minden (85 m, Louisiana) |
25 % |
| Millville Executive Airport (25 m, New Jersey) |
85 % |
| Millinocket Airport (124 m, Maine) |
100 % |
| Miller Air Park (25 m, New Jersey) |
95 % |
| Millard Airport (320 m, Nebraska) |
50 % |
| Miley Memorial Field Airport (2124 m, Wyoming) |
95 % |
| Midway Atoll (7 m, Hawaii) |
95 % |
| Midlothian Airport (217 m, Texas) |
60 % |
| Midland Airpark Airport (854 m, Texas) |
10 % |
| Middleton Muni - Morey Field (283 m, Wisconsin) |
50 % |
| Mid-Carolina Regional Airport (236 m, North Carolina) |
30 % |
| Michigan City Airport (200 m, Indiana) |
45 % |
| Michel-Pouliot Gaspé Airport (35 m, Quebec) |
100 % |
| Meriden Markham Airport (31 m, Connecticut) |
80 % |
| Mekoryuk Airport (15 m, Alaska) |
95 % |
| Medford Airport (397 m, Oregon) |
70 % |
| Meadow Lake Airport (480 m, Saskatchewan) |
55 % |
| McKinnon St. Simons (6 m, Georgia) |
75 % |
| McHenry Airport (894 m, Maryland) |
40 % |
| McGuire Air Force Base (41 m, New Jersey) |
95 % |
| McClellan- Palomar Airport (100 m, California) |
70 % |
| McCall Airport (1530 m, Idaho) |
95 % |
| Maury County Airport (208 m, Tennessee) |
30 % |
| Matagami Airport (280 m, Quebec) |
55 % |
| Matagami (280 m, California) |
55 % |
| Marysville Airport (391 m, Kansas) |
35 % |
| Marion Airport (262 m, Indiana) |
45 % |
| Marine Corps Auxiliary Landing Field Bogue (7 m, North Carolina) |
95 % |
| Marine Corps Air Station Cherry Point (11 m, North Carolina) |
95 % |
| Marin (1 m, California) |
60 % |
| Marco Island Airport (2 m, Florida) |
75 % |
| Manitowish Waters Airport (491 m, Wisconsin) |
55 % |
| Majors Airport (163 m, Texas) |
50 % |
| Magdalen Islands Airport (18 m, Quebec) |
95 % |
| Los Alamos Airport (2186 m, New Mexico) |
25 % |
| Lompoc Airport (27 m, California) |
75 % |
| Logansport Airport (225 m, Indiana) |
50 % |
| Logan County Airport (178 m, Illinois) |
35 % |
| Lloydminster Airport (669 m, Alberta) |
80 % |
| Llano Airport (336 m, Texas) |
45 % |
| Lincolnton Airport (267 m, North Carolina) |
20 % |
| Lethbridge (929 m, Alberta) |
85 % |
| Leonardtown Airport (43 m, Maryland) |
85 % |
| Lebanon Airport (182 m, New Hampshire) |
95 % |
| Le Mars Airport (365 m, Iowa) |
50 % |
| Laughlin Air Force Base (327 m, Texas) |
25 % |
| Langlade (464 m, Wisconsin) |
55 % |
| Lancaster Airport (123 m, Pennsylvania) |
70 % |
| Lampasas Airport (370 m, Texas) |
40 % |
| Lake Havasu City Airport (238 m, Arizona) |
15 % |
| Lake Cumberland Regional Airport (283 m, Kentucky) |
30 % |
| Lake City Gateway AP (61 m, Florida) |
45 % |
| Ladd Army Airfield (137 m, Alaska) |
95 % |
| LaGrange Callaway Airport (211 m, Georgia) |
20 % |
| La Porte Airport (248 m, Indiana) |
35 % |
| La Grande/Union County Airport (826 m, Oregon) |
85 % |
| La Grande-4 Airport (306 m, Quebec) |
80 % |
| La Grande Iv (306 m, California) |
80 % |
| Knox County Regional Airport (17 m, Maine) |
95 % |
| Kivalina Airport (3 m, Alaska) |
80 % |
| Kings Land o' Lakes Airport (520 m, Wisconsin) |
55 % |
| Kimball Airport (1501 m, Nebraska) |
20 % |
| Key West Airport (5 m, Florida) |
70 % |
| Keokuk Airport (205 m, Iowa) |
35 % |
| Kapuskasing (227 m, Ontario) |
80 % |
| Johnston County Airport (50 m, North Carolina) |
85 % |
| Jim Kelly Field (736 m, Nebraska) |
35 % |
| Jesup Airport (33 m, Georgia) |
60 % |
| Jerome (1233 m, Idaho) |
75 % |
| Jasper Airport (65 m, Texas) |
35 % |
| Jaffrey Airport (317 m, New Hampshire) |
85 % |
| Jacksonville Airport (190 m, Illinois) |
35 % |
| Inukjuak (25 m, Quebec) |
75 % |
| Independence Airport (298 m, Iowa) |
40 % |
| Independence Airport (251 m, Kansas) |
40 % |
| Illinois Valley Regional Airport (199 m, Illinois) |
55 % |
| Idaho Falls Regional Airport (1441 m, Idaho) |
80 % |
| Idaho County Airport (1010 m, Idaho) |
70 % |
| Hurlburt Field (11 m, Florida) |
15 % |
| Huntsville Executive Airport (230 m, Alabama) |
35 % |
| Hunter Army Airfield (13 m, Georgia) |
65 % |
| Hudson Valley Regional Airport (51 m, New York) |
70 % |
| Houston County Airport (106 m, Texas) |
45 % |
| Houlton Intl. Airport (150 m, Maine) |
100 % |
| Houghton (327 m, Michigan) |
65 % |
| Homestead Air Reserve Base (2 m, Florida) |
60 % |
| Holyoke Airport (1137 m, Colorado) |
15 % |
| Hilo Intl. Airport (10 m, Hawaii) |
95 % |
| Hill Air Force Base (1459 m, Utah) |
75 % |
| High Level Airport (338 m, Alberta) |
65 % |
| Hickory Regional Airport (348 m, North Carolina) |
45 % |
| Hereford Airport (1154 m, Texas) |
15 % |
| Henderson- Oxford Airport (161 m, North Carolina) |
80 % |
| Hebron Airport (447 m, Nebraska) |
35 % |
| Hebbronville Airport (202 m, Texas) |
40 % |
| Hazlehurst Airport (78 m, Georgia) |
55 % |
| Harriet Alexander Field (2293 m, Colorado) |
30 % |
| Harnett Regional Jetport Airport (60 m, North Carolina) |
85 % |
| Harlan Airport (375 m, Iowa) |
50 % |
| Harlan Airport (473 m, Kentucky) |
35 % |
| Harbor Springs Airport (209 m, Michigan) |
50 % |
| Hanksville Airport (1355 m, Utah) |
20 % |
| Hampton Roads Executive Airport (7 m, Virginia) |
95 % |
| Halliburton Field (339 m, Oklahoma) |
45 % |
| Halifax Airport (145 m, Nova Scotia) |
95 % |
| Hale County Airport (1028 m, Texas) |
15 % |
| Grove Airport (254 m, Oklahoma) |
35 % |
| Greater Sudbury (190 m, Ontario) |
80 % |
| Greater Cumberland Regional Airport (236 m, Maryland) |
25 % |
| Greater Cumberland Regional Airport (236 m, West-Virginia) |
25 % |
| Grant County Regional Airport (1127 m, Oregon) |
55 % |
| Grant County Airport (1638 m, New Mexico) |
25 % |
| Graham Airport (342 m, Texas) |
40 % |
| Gordon K. Bush Airport (234 m, Ohio) |
30 % |
| Gonzales Airport (108 m, Texas) |
55 % |
| Glasgow Airport (218 m, Kentucky) |
40 % |
| Gillespie Field Airport (117 m, California) |
75 % |
| Gatesville Airport (276 m, Texas) |
60 % |
| Galliano Airport (0 m, Louisiana) |
25 % |
| Galesburg Airport (233 m, Illinois) |
45 % |
| Gainesville Airport (256 m, Texas) |
45 % |
| Fulton County Airport (241 m, Indiana) |
45 % |
| Friday Harbor Airport (33 m, Washington) |
60 % |
| Fremont Airport (379 m, Nebraska) |
55 % |
| Fredericton Intl. Airport (31 m, New Brunswick) |
95 % |
| Franklin Airport (616 m, Tennessee) |
25 % |
| Fort Morgan Airport (1393 m, Colorado) |
25 % |
| Fort Chipewyan (232 m, Alberta) |
70 % |
| Fort Carson (1789 m, Colorado) |
10 % |
| Forest City Airport (375 m, Iowa) |
45 % |
| Foothills Regional Airport (387 m, North Carolina) |
25 % |
| Floyd Bennett Memorial Airport (100 m, New York) |
95 % |
| Florence Airport (1658 m, Colorado) |
15 % |
| Florence Airport (44 m, South Carolina) |
65 % |
| Florala Airport (96 m, Alabama) |
20 % |
| Flora (144 m, Illinois) |
40 % |
| Fitchburg Airport (106 m, Massachusetts) |
80 % |
| First Flight Airport (4 m, North Carolina) |
95 % |
| Fernandina Beach Airport (5 m, Florida) |
75 % |
| Fayetteville Regional Airport (58 m, North Carolina) |
80 % |
| Fallbrook Airport (216 m, California) |
65 % |
| Evanston Airport (2177 m, Wyoming) |
75 % |
| Essex (53 m, New Jersey) |
85 % |
| Esquimalt (3 m, British Columbia) |
70 % |
| Erie Airport (1564 m, Colorado) |
20 % |
| Elko Regional Airport (1565 m, Nevada) |
60 % |
| Elkhart (1099 m, Kansas) |
25 % |
| Elizabeth City Regional Airport (4 m, North Carolina) |
95 % |
| El Reno (432 m, Oklahoma) |
55 % |
| Eielson Air Force Base (167 m, Alaska) |
80 % |
| Edmonton (IAP) (707 m, Alberta) |
85 % |
| Eastern Slopes Regional Airport (137 m, Maine) |
95 % |
| Eagle Lake Airport (56 m, Texas) |
55 % |
| Eagle Airport (268 m, Alaska) |
65 % |
| Duplin (42 m, North Carolina) |
95 % |
| Dubois Airport (2224 m, Wyoming) |
50 % |
| Dryden Airport (413 m, Ontario) |
70 % |
| Driggs Airport (1898 m, Idaho) |
85 % |
| Doylestown Airport (120 m, Pennsylvania) |
75 % |
| Dover Air Force Base (9 m, Delaware) |
85 % |
| Douglas Airport (78 m, Georgia) |
60 % |
| Dillant (149 m, New Hampshire) |
95 % |
| Denison (388 m, Iowa) |
70 % |
| Decorah Airport (353 m, Iowa) |
45 % |
| Decatur (43 m, Georgia) |
45 % |
| DeKalb Airport (279 m, Illinois) |
50 % |
| Daviess County Airport (144 m, Indiana) |
30 % |
| Davidson County Airport (223 m, North Carolina) |
35 % |
| Darke County Airport (307 m, Ohio) |
45 % |
| Dare (4 m, North Carolina) |
95 % |
| Cushing Airport (279 m, Oklahoma) |
35 % |
| Curtis L. Brown Jr. Field (40 m, North Carolina) |
95 % |
| Curtis Field (557 m, Texas) |
25 % |
| Currituck County Regional Airport (5 m, North Carolina) |
95 % |
| Cumberland Airport (378 m, Wisconsin) |
45 % |
| Cross City Airport (13 m, Florida) |
35 % |
| Crookston Airport (273 m, Minnesota) |
35 % |
| Crisp County (95 m, Georgia) |
45 % |
| Creston (394 m, Iowa) |
60 % |
| Craig Field / Selma (51 m, Alabama) |
25 % |
| Council Bluffs Airport (382 m, Iowa) |
55 % |
| Corvallis Airport (75 m, Oregon) |
85 % |
| Conway Airport (10 m, South Carolina) |
95 % |
| Concord Airport (105 m, New Hampshire) |
95 % |
| Comanche Airport (423 m, Texas) |
45 % |
| Columbus County Airport (30 m, North Carolina) |
95 % |
| Columbus Air Force Base (67 m, Mississippi) |
25 % |
| Colorado City (1486 m, Arizona) |
25 % |
| Coleman Airport (517 m, Texas) |
25 % |
| Cold Lake Airport (541 m, Alberta) |
80 % |
| Colby Airport (971 m, Kansas) |
20 % |
| Coeur d'Alene Airport (707 m, Idaho) |
80 % |
| Clintonville Airport (251 m, Wisconsin) |
40 % |
| Clinton Airport (45 m, North Carolina) |
95 % |
| Clinton Airport (251 m, Missouri) |
35 % |
| Clarion Airport (354 m, Iowa) |
55 % |
| Clarinda (303 m, Iowa) |
70 % |
| Claremore Regional Airport (221 m, Oklahoma) |
40 % |
| Chugiak Airport (29 m, Alaska) |
95 % |
| Chickasha Airport (351 m, Oklahoma) |
40 % |
| Chevak Airport (23 m, Alaska) |
95 % |
| Chetek Airport (322 m, Wisconsin) |
40 % |
| Cherokee County Regional Airport (372 m, Georgia) |
20 % |
| Charlottetown Airport (79 m, Prince Edward Island) |
95 % |
| Chandler Regional Airport (300 m, Oklahoma) |
40 % |
| Chamberlain (530 m, South Dakota) |
65 % |
| Centralia (163 m, Illinois) |
40 % |
| Centerville Airport (313 m, Iowa) |
35 % |
| Catalina Airport (488 m, California) |
75 % |
| Castroville Airport (235 m, Texas) |
40 % |
| Cartersville Airport (229 m, Georgia) |
20 % |
| Carrizo Hill Airport (183 m, Texas) |
30 % |
| Carmi Airport (118 m, Illinois) |
35 % |
| Cape Romanzof LRRS Airport (123 m, Alaska) |
95 % |
| Cape Lisburne LRRS Airport (3 m, Alaska) |
95 % |
| Cape Canaveral Space Force Station (3 m, Florida) |
75 % |
| Canadian Airport (730 m, Texas) |
30 % |
| Cameron Airport (123 m, Texas) |
50 % |
| Cambridge- Dorchester Airport (6 m, Maryland) |
95 % |
| Caldwell Airport (119 m, Texas) |
45 % |
| Cairns Army Airfield (91 m, Florida) |
20 % |
| Burnett County Airport (301 m, Wisconsin) |
45 % |
| Burlington Airport (237 m, Wisconsin) |
45 % |
| Buffalo Narrows Airport (440 m, Saskatchewan) |
80 % |
| Buckland Airport (9 m, Alaska) |
85 % |
| Buckhannon Airport (498 m, West-Virginia) |
30 % |
| Brunswick Golden Isles Airport (8 m, Georgia) |
65 % |
| Brownwood Regional Airport (422 m, Texas) |
40 % |
| Brookings Airport (140 m, Oregon) |
95 % |
| Bridgeport Airport (260 m, Texas) |
50 % |
| Brewster Field Arpt (704 m, Nebraska) |
50 % |
| Bozeman Yellowstone Intl. Airport (1349 m, Montana) |
95 % |
| Bowerman Airport (3 m, Washington) |
85 % |
| Boulder Airport (1612 m, Colorado) |
25 % |
| Boone Airport (354 m, Iowa) |
55 % |
| Boerne Stage Field (422 m, Texas) |
45 % |
| Bob Baker Memorial Airport (46 m, Alaska) |
85 % |
| Blue River (683 m, British Columbia) |
95 % |
| Blue Canyon (1611 m, California) |
85 % |
| Block (33 m, Rhode Island) |
95 % |
| Blakely Airport (65 m, Georgia) |
40 % |
| Black River Falls Area Airport (255 m, Wisconsin) |
35 % |
| Big Trout Lake (222 m, Ontario) |
80 % |
| Big Spring Airport (784 m, Texas) |
10 % |
| Big Sandy Regional Airport (372 m, Kentucky) |
30 % |
| Bert Mooney Airport (1688 m, Montana) |
95 % |
| Beresford Airport (59 m, New Brunswick) |
95 % |
| Beaumont Airport (10 m, Texas) |
40 % |
| Beatrice Municipal (403 m, Nebraska) |
30 % |
| Bay Bridge Airport (15 m, Maryland) |
95 % |
| Baxley Airport (61 m, Georgia) |
55 % |
| Bathurst Arpt(Awrs) (59 m, New Brunswick) |
95 % |
| Bastrop Airport (51 m, Louisiana) |
35 % |
| Barrow (287 m, Georgia) |
15 % |
| Baldwin County Airport (117 m, Georgia) |
40 % |
| Baker Lake Airport (18 m, Nunavut) |
70 % |
| Avenger Field (725 m, Texas) |
15 % |
| Aurora Airport (548 m, Nebraska) |
50 % |
| Augusta State Airport (107 m, Maine) |
95 % |
| Audubon County Airport (392 m, Iowa) |
50 % |
| Auburn Airport (467 m, California) |
75 % |
| Atlantic Airport (360 m, Iowa) |
60 % |
| Asheboro Airport (205 m, North Carolina) |
60 % |
| Ashe County Airport (969 m, North Carolina) |
30 % |
| Arthur N. Neu Airport (375 m, Iowa) |
65 % |
| Anson County Airport (91 m, North Carolina) |
65 % |
| Ankeny Regional Airport (275 m, Iowa) |
50 % |
| Angel Fire Airport (2554 m, New Mexico) |
35 % |
| Andrews Airport (967 m, Texas) |
10 % |
| Anaktuvuk Pass Airport (643 m, Alaska) |
95 % |
| Ambler Airport (88 m, Alaska) |
85 % |
| Alva Regional Airport (449 m, Oklahoma) |
40 % |
| Altus/Quartz Mountain Regional Airport (437 m, Oklahoma) |
50 % |
| Alpine- Casparis Airport (1376 m, Texas) |
10 % |
| Allentown Queen City Airport (122 m, Pennsylvania) |
80 % |
| Algona Airport (372 m, Iowa) |
50 % |
| Albion Airport (550 m, Nebraska) |
60 % |
| Ainsworth Regional Airport (789 m, Nebraska) |
45 % |
| Afton Airport (1896 m, Wyoming) |
30 % |
| Ada Airport (310 m, Oklahoma) |
40 % |
North - South