| Station | Elevation | Latitude (DD) | Longitude (DD) |
| Williamsport regional ap | 1585 | +41250 | -076917 |
| Williamsport-lycoming county | 1597 | +41250 | -076917 |
| Willimantic (asos) | 760 | +41733 | -072183 |
| Williston | 5779 | +48150 | -103617 |
| Williston fl/montbrook aaf | 220 | +29350 | -082466 |
| Williston sloulin field intl | 5791 | +48183 | -103633 |
| Williston sloulin intl ap | 5800 | +48200 | -103650 |
| Willmar | 3450 | +45117 | -095083 |
| Willmar/rice (awos) | 3450 | +45117 | -095083 |
| Willoughby | 1910 | +41683 | -081383 |
| Willow airport | 670 | +61750 | -150050 |
| Willow grove nas | 1021 | +40200 | -075150 |
| Willow west | 634 | +61750 | -150050 |
| Wilmette (cgs) | 1830 | +42067 | -087683 |
| Wilmette (marines)& | 2230 | +42067 | -087683 |
| Wilmington | -99999 | -99999 | -999999 |
| Wilmington airborne park | 3283 | +39417 | -083817 |
| Wilmington airpark | 3283 | +39433 | -083800 |
| Wilmington dupont ap | 226 | +39767 | -075600 |
| Wilmington international arpt | 91 | +34267 | -077900 |
| Wilmington new castle cnty ap | 226 | +39667 | -075600 |
| Wilmington new hanover county | 91 | +34267 | -077900 |
| Wilmington nexrad | 440 | +33983 | -078433 |
| Wilmington raob | 3170 | +39417 | -083817 |
| Winchester rgnl | 2220 | +39150 | -078150 |
| Winder | 2870 | +33983 | -083667 |
| Windom | 4100 | +43917 | -095117 |
| Window rock | 20540 | +35650 | -109067 |
| Window rock arpt | 20550 | +35650 | -109067 |
| Winfield ks/strotner fld | 3500 | +37166 | -097033 |
| Winfieldark city | 3530 | +37300 | -097000 |
| Wink winkler county ap | 8556 | +31783 | -103200 |
| Winnemucca municipal arpt | 13097 | +40900 | -117800 |
| Winnemucca wb city | 13091 | +40967 | -117717 |
| Winner | 6220 | +43383 | -099850 |
| Winona muni (awos) | 2000 | +44083 | -091700 |
| Winslow municipal ap | 14905 | +35033 | -110717 |
| Winston-salem reynolds ap | 2935 | +36133 | -080233 |
| Winston-salem/smith | 2957 | +36133 | -080217 |
| Winter haven | 440 | +28050 | -081750 |
| Winter park(resort) | 27710 | +39883 | -105767 |
| Winterhaven | 440 | +28050 | -081750 |
| Wiscasset | 210 | +43967 | -069717 |
| Wisconsin dells | 2980 | +43517 | -089767 |
| Wisconsin rapids | 3080 | +44350 | -089833 |
| Wise/lonesome pine | 8170 | +36983 | -082533 |
| Wiseman alaska wb | 3930 | +67433 | -150216 |
| Wiseman arpt | 3600 | +67400 | -150117 |
| Wolf point intl | 6050 | +48100 | -105583 |
| Wolfeboro | 2192 | +43600 | -071233 |
| Wood island (ls) | 90 | +43450 | -070317 |
| Woodbridge-de bach | 580 | +52133 | +001100 |
| Woodbridge-deenethorpe | 0 | +52499 | -000600 |
| Woodstock australia | 640 | -19599 | +146833 |
| Wooster | 3460 | +40867 | -081883 |
| Worcester municipal arpt | 3005 | +42267 | -071867 |
| Worchester regional arpt | 3005 | +42267 | -071883 |
| Worland municipal | 12940 | +43967 | -107950 |
| Worthington (awos) | 4800 | +43650 | -095583 |
| Wotho marshall islands | 40 | +10166 | +166000 |
| Wrangell | 130 | +56483 | -132367 |
| Wright-paterson afb | 2499 | +39833 | -084050 |
| Wrightsville beach | 30 | +34183 | -077817 |
| Wurtsmith afb | 1881 | +44450 | -083400 |
| Yakataga (cape) | 82 | +60083 | -142500 |
| Yakataga ap | 82 | +60083 | -142500 |
| Yakima air terminal | 3243 | +46567 | -120550 |
| Yakutat state ap | 271 | +59533 | -139733 |
| Yakutat state arpt | 85 | +59517 | -139633 |
| Yanggu korea/team 842 | 1770 | +38100 | +128000 |
| Yangkai china aab | 19550 | +25500 | +103083 |
| Yangyang korea | 60 | +38066 | +128616 |
| Yankton(awos) | 3980 | +42917 | -097383 |
| Yaquina bay (cgs) | 10 | +44617 | -124050 |
| Yenan china | 980 | +36516 | +109449 |
| Yo-do korea | 690 | +39233 | +127616 |
| Yongdung-po korea | 120 | +37516 | +126900 |
| Yonpo korea | 30 | +39783 | +127533 |
| York arpt | 1440 | +39917 | -076867 |
| Youngstown municipal arpt | 3591 | +41250 | -080667 |
| Youngstown regional airport | 3597 | +41250 | -080667 |
| Yucca flats test s t | 11969 | +36950 | -116050 |
| Yuma intl airport | 628 | +32650 | -114600 |
| Yuma intl arpt | 628 | +32667 | -114600 |
| Yuma mcas | 649 | +32650 | -114617 |
| Yuma proving ground | 988 | +32833 | -114400 |
| Yuma prvg grounds | 2310 | +32500 | -114000 |
| Yunnanyi china aab | 19670 | +25416 | +100733 |
| Ywlloestone lake ramos | 23683 | +44550 | -110417 |
| Zanesville municipal ap | 2682 | +39950 | -081900 |
| Zapata-yorktowntlat | 170 | +27417 | -094417 |
| Zuma beach | 60 | +34017 | -118817 |
| Zuni | 19233 | +35067 | -108833 |
| Zuni caa | 19629 | +35100 | -108783 |
United states of america (US)