| Stations: 1993
|
Cloud Cover |
Cloud Base |
| Adak (5 m, Alaska) |
8 |
200-300m |
| Nome Airport (6 m, Alaska) |
8 |
100-200m |
| Cold Bay Airport (31 m, Alaska) |
6 |
600-1000m |
| Ralph Wien Memorial Airport (5 m, Alaska) |
6 |
1000-1500m |
| Bethel Airport (44 m, Alaska) |
8 |
300-600m |
| Aniak Airport (26 m, Alaska) |
8 |
300-600m |
| Lihue Airport (32 m, Hawaii) |
4 |
600-1000m |
| Port Heiden Airport (29 m, Alaska) |
0 |
>2500m |
| Dillingham Airport (29 m, Alaska) |
8 |
300-600m |
| Daniel K. Inouye Intl. Airport (5 m, Hawaii) |
2 |
600-1000m |
| King Salmon Airport (14 m, Alaska) |
6 |
300-600m |
| Kahului Airport (20 m, Hawaii) |
2 |
1000-1500m |
| McGrath Airport (103 m, Alaska) |
8 |
600-1000m |
| Hilo Intl. Airport (10 m, Hawaii) |
6 |
600-1000m |
| Iliamna Airport (49 m, Alaska) |
6 |
200-300m |
| Kodiak Airport (34 m, Alaska) |
0 |
>2500m |
| Bettles Airport (196 m, Alaska) |
4 |
1500-2000m |
| Talkeetna Airport (109 m, Alaska) |
8 |
1000-1500m |
| Ted Stevens Anchorage Intl. Airport (42 m, Alaska) |
8 |
1000-1500m |
| Fairbanks Intl. Airport (135 m, Alaska) |
6 |
>2500m |
| Middleton Island Airport (14 m, Alaska) |
8 |
100-200m |
| Allen Army Airfield (391 m, Alaska) |
6 |
>2500m |
| Gulkana Airport (481 m, Alaska) |
6 |
>2500m |
| Fort Yukon Airport (135 m, Alaska) |
0 |
>2500m |
| Yakutat Airport (13 m, Alaska) |
0 |
>2500m |
| Mayo Airport (504 m, Yukon) |
1 |
>2500m |
| Erik Nielsen Whitehorse Intl. Airport (706 m, Yukon) |
7 |
>2500m |
| Juneau Intl. Airport (7 m, Alaska) |
6 |
>2500m |
| Inuvik (68 m, Northwest Territories) |
4 |
|
| Prince Rupert Airport (36 m, British Columbia) |
0 |
|
| Stewart Airport (7 m, British Columbia) |
0 |
|
| Watson Lake Airport (690 m, Yukon) |
6 |
|
| Terrace Airport (217 m, British Columbia) |
1 |
>2500m |
| Norman Wells (78 m, Northwest Territories) |
6 |
>2500m |
| Bella Coola Airport (35 m, British Columbia) |
2 |
|
| Campbell River Airport (106 m, British Columbia) |
8 |
|
| Comox (26 m, British Columbia) |
8 |
300-600m |
| Quillayute Airport (55 m, Washington) |
8 |
100-200m |
| Arcata (18 m, California) |
6 |
1000-1500m |
| Rohnerville Airport (120 m, California) |
8 |
|
| Newport Airport (37 m, Oregon) |
4 |
|
| Bowerman Airport (3 m, Washington) |
8 |
|
| Astoria Regional Airport (7 m, Oregon) |
6 |
2000-2500m |
| Nanaimo Airport (28 m, British Columbia) |
8 |
|
| Tillamook Airport (11 m, Oregon) |
6 |
|
| Eugene Airport (114 m, Oregon) |
8 |
600-1000m |
| Ukiah Airport (187 m, California) |
8 |
|
| Sanderson Field Airport (85 m, Washington) |
8 |
|
| McNary Field Airport (61 m, Oregon) |
8 |
300-600m |
| Chehalis Airport (54 m, Washington) |
4 |
|
| Whistler Airport (658 m, British Columbia) |
8 |
|
| Weaverville (716 m, California) |
6 |
|
| Olympia Regional Airport (61 m, Washington) |
8 |
200-300m |
| Orcas Island Airport (9 m, Washington) |
6 |
|
| Medford Airport (397 m, Oregon) |
6 |
300-600m |
| Trinity Center (728 m, California) |
6 |
|
| Naval Air Station Whidbey (10 m, Washington) |
6 |
|
| Petaluma Airport (27 m, California) |
8 |
|
| Portland Airport (12 m, Oregon) |
8 |
600-1000m |
| Gray Army Airfield (89 m, Washington) |
8 |
|
| Fort Nelson Airport (389 m, British Columbia) |
1 |
1000-1500m |
| Marin (1 m, California) |
8 |
|
| Quesnel Airport (545 m, British Columbia) |
0 |
|
| Eddie Andreini Sr. Airfield (20 m, California) |
8 |
|
| McChord Field (88 m, Washington) |
8 |
|
| Skagit Regional Airport (44 m, Washington) |
6 |
|
| San Francisco Intl. Airport (5 m, California) |
8 |
300-600m |
| Mount Shasta (1077 m, California) |
8 |
|
| Seattle (137 m, Washington) |
8 |
2000-2500m |
| Redding Airport (153 m, California) |
8 |
600-1000m |
| Puyallup Airport (164 m, Washington) |
8 |
|
| Red Bluff Airport (108 m, California) |
8 |
300-600m |
| Moffett Federal Airfield (12 m, California) |
8 |
|
| Williams Lake Airport (942 m, British Columbia) |
7 |
>2500m |
| Chico Airport (73 m, California) |
8 |
|
| Watsonville Airport (48 m, California) |
4 |
|
| Davis Airport (21 m, California) |
6 |
|
| Chetwynd (609 m, British Columbia) |
8 |
|
| South County Arpt Of Santa Clara County (86 m, California) |
8 |
|
| Sacramento McClellan Airport (23 m, California) |
4 |
|
| Hollister Airport (70 m, California) |
8 |
|
| Lincoln Airport (37 m, California) |
6 |
|
| Stampede (1206 m, Washington) |
8 |
|
| Sacramento Mather Airport (29 m, California) |
0 |
|
| Stockton Metropolitan Airport (8 m, California) |
8 |
1500-2000m |
| Auburn Airport (467 m, California) |
6 |
|
| Nevada (961 m, California) |
8 |
|
| Prineville Airport (991 m, Oregon) |
8 |
|
| Placerville Airport (788 m, California) |
6 |
|
| Blue Canyon (1611 m, California) |
8 |
|
| Susanville Airport (1263 m, California) |
0 |
|
| Yakima Airport (325 m, Washington) |
2 |
>2500m |
| Santa Maria Public Airport (73 m, California) |
4 |
600-1000m |
| Columbia Airport (646 m, California) |
4 |
|
| Santa Ynez Airport (205 m, California) |
0 |
|
| Sunnyside Muni (234 m, Washington) |
0 |
|
| Reno Stead Airport (1539 m, Nevada) |
6 |
|
| Reno (1341 m, Nevada) |
6 |
2000-2500m |
| Fresno Yosemite Intl. Airport (100 m, California) |
6 |
2000-2500m |
| Carson City Airport (1432 m, Nevada) |
4 |
|
| Penticton Airport (344 m, British Columbia) |
8 |
1500-2000m |
| Meadows Field Airport (150 m, California) |
0 |
>2500m |
| Burns Airport (1271 m, Oregon) |
8 |
>2500m |
| Grant County Regional Airport (1127 m, Oregon) |
6 |
|
| Grande Prairie Airport (669 m, Alberta) |
3 |
2000-2500m |
| Eastern Oregon Regional Airport (456 m, Oregon) |
0 |
>2500m |
| Mammoth Yosemite Airport (2173 m, California) |
0 |
|
| Sandberg Airport (1379 m, California) |
0 |
>2500m |
| Hawthorne Industrial Airport (1285 m, Nevada) |
0 |
|
| Tehachapi Airport (1220 m, California) |
0 |
|
| Los Angeles Intl. Airport (30 m, California) |
6 |
300-600m |
| Eastern Sierra Regional Airport (1263 m, California) |
0 |
>2500m |
| Mojave Air and Space Port Airport (849 m, California) |
0 |
|
| Long Beach Airport (12 m, California) |
0 |
>2500m |
| Edwards (701 m, California) |
0 |
|
| Winnemucca Airport (1322 m, Nevada) |
0 |
>2500m |
| Spokane Airport (721 m, Washington) |
8 |
1500-2000m |
| Southern California Logistics Airport (869 m, California) |
0 |
|
| Fallbrook Airport (216 m, California) |
0 |
|
| San Bernardino Intl. Airport (353 m, California) |
4 |
|
| San Diego Intl. Airport (9 m, California) |
6 |
300-600m |
| Murrieta Hot Springs (412 m, California) |
0 |
|
| Lewiston Airport (438 m, Idaho) |
8 |
2000-2500m |
| Golden (785 m, British Columbia) |
6 |
|
| Big Bear Airport (2058 m, California) |
0 |
|
| Bicycle Lake Army Airfield (716 m, California) |
0 |
|
| Sandpoint Airport (648 m, Idaho) |
6 |
|
| Nampa Airport (773 m, Idaho) |
0 |
|
| Palm Springs Intl. Airport (141 m, California) |
0 |
|
| Edson Airport (925 m, Alberta) |
8 |
|
| Boundary County Airport (711 m, Idaho) |
6 |
|
| Boise Airport (872 m, Idaho) |
0 |
>2500m |
| Idaho County Airport (1010 m, Idaho) |
6 |
|
| Mercury/Desert Rock (1006 m, Nevada) |
0 |
>2500m |
| Whitecourt Airport (785 m, Alberta) |
8 |
600-1000m |
| Hay River Airport (170 m, Northwest Territories) |
1 |
0-50m |
| Naval Air Facility El Centro (-13 m, California) |
4 |
|
| Harry Reid Intl. Airport (664 m, Nevada) |
6 |
>2500m |
| Boulder City Airport (671 m, Nevada) |
0 |
|
| Ely Airport (1909 m, Nevada) |
6 |
>2500m |
| Slave Lake Airport (583 m, Alberta) |
8 |
|
| Gooding Airport (1138 m, Idaho) |
4 |
|
| Jerome (1233 m, Idaho) |
8 |
|
| Yellowknife Airport (206 m, Northwest Territories) |
1 |
0-50m |
| Springbank (1201 m, Alberta) |
8 |
|
| Missoula Montana Airport (972 m, Montana) |
8 |
>2500m |
| Wekweètì Airport (368 m, Northwest Territories) |
0 |
|
| Pincher Creek (1190 m, Alberta) |
6 |
|
| Kingman Airport (1033 m, Arizona) |
0 |
>2500m |
North - South