| Station | Elevation | Latitude (DD) | Longitude (DD) |
| Lancaster gen wm fox field | 7129 | +34733 | -118217 |
| Lancasterfairfiel | 2640 | +39750 | -082650 |
| Lanchow china | 15430 | +36000 | +103750 |
| Lander hunt field | 16938 | +42817 | -108733 |
| Langley afb | 30 | +37083 | -076350 |
| Langley afb/hampton | 30 | +37083 | -076367 |
| Lansing capital city arpt | 2563 | +42783 | -084583 |
| Laohokow china | 1100 | +32416 | +111500 |
| Laramie general brees field | 22147 | +41317 | -105683 |
| Laredo air force base | 1524 | +27533 | -099467 |
| Laredo intl | 1640 | +27617 | -099517 |
| Laredo intl airport | 1550 | +27550 | -099467 |
| Laredo intl ap | 1506 | +27533 | -099467 |
| Las cruces intl | 13580 | +32283 | -106917 |
| Las vegas mccarran intl ap | 6483 | +36083 | -115150 |
| Las vegas municipal arpt | 20928 | +35650 | -105150 |
| Las vegas nexrad | 15090 | +35717 | -114900 |
| Las vegas radar stn | 8000 | +36317 | -115567 |
| Las vegas wb ap | 5739 | +36233 | -115033 |
| Latrobe/westmorland | 3610 | +40283 | -079400 |
| Laughlin afb | 3271 | +29367 | -100783 |
| Laurel/noble field | 730 | +31667 | -089167 |
| Laurinburg aab | 631 | +34783 | -079383 |
| Lawerenceville il | 1310 | +38766 | -087600 |
| Lawrence muni arpt | 2540 | +39000 | -095217 |
| Lawrence municipal | 450 | +42717 | -071117 |
| Lawrenceville | 3230 | +33983 | -083967 |
| Lawrencevillevin. | 1310 | +38767 | -087600 |
| Lawton municipal | 3380 | +34567 | -098417 |
| Lazy mtn/wolverine | 2360 | +61633 | -149033 |
| Le khroub algeria | 5590 | +36300 | +006700 |
| Le mars | 3650 | +42783 | -096200 |
| Leadville/lake co. | 30960 | +39250 | -106300 |
| Lebanon awo | 3386 | +43533 | -072267 |
| Lebanon municipal | 1820 | +43633 | -072300 |
| Lebanon municipal ap | 1811 | +43633 | -072300 |
| Lebanon tennessee aab | 1590 | +36183 | -086300 |
| Lebo caa airport | 3520 | +38433 | -095800 |
| Leeds | 7750 | +48550 | -109683 |
| Leesburg florida aaf | 230 | +28800 | -081800 |
| Leesburg muni arpt | 1250 | +28817 | -081800 |
| Leesburg/godfrey | 1190 | +39083 | -077567 |
| Leeville | 20 | +29217 | -090233 |
| Leghorn italy/mu 7 | 0 | -43533 | +010250 |
| Lemmon | 7910 | +45933 | -102167 |
| Lemoore reeves nas | 732 | +36333 | -119950 |
| Leone bay samoa airstrip/flt | 210 | -14366 | -170783 |
| Level island | 90 | +56467 | -133100 |
| Lewisburg/greenbrie | 7020 | +37867 | -080400 |
| Lewiston naaf | 829 | +44050 | -070250 |
| Lewiston nez perce cnty ap | 4377 | +46367 | -117017 |
| Lewiston nez perce county arp | 4331 | +46383 | -117017 |
| Lewistown municipal arpt | 12634 | +47050 | -109450 |
| Lexington | 7340 | +40783 | -099767 |
| Lexington bluegrass ap | 2941 | +38033 | -084600 |
| Lexington bluegrass field | 2990 | +38033 | -084600 |
| Lexington/creech | 2990 | +38033 | -084617 |
| Lexingtonjim kell | 7360 | +40783 | -099767 |
| Liangshan china aab | 5010 | +30583 | +107833 |
| Libby island light s | 9 | +44567 | -067367 |
| Liberal muni (awos) | 8790 | +37050 | -100967 |
| Lidgerwood (ramos) | 3510 | +46100 | -097150 |
| Lihue airport | 314 | +21983 | -159333 |
| Lihue kauai isl | 310 | +21983 | -159333 |
| Lima allen co arpt | 2960 | +40400 | -084017 |
| Limon | 16953 | +39183 | -103717 |
| Limon municipal | 16953 | +39267 | -103667 |
| Lincoln | 1780 | +40150 | -089333 |
| Lincoln afb | 3560 | +40850 | -096767 |
| Lincoln air base | 3609 | +40850 | -096750 |
| Lincoln municipal arpt | 3566 | +40833 | -096767 |
| Lincoln nexrad | 2120 | +40150 | -089350 |
| Lincoln upper-air | 1780 | +40150 | -089333 |
| Litchfield muni | 3470 | +45100 | -094500 |
| Litchfield park naf | 2920 | +33433 | -112367 |
| Little falls (awos) | 3420 | +45950 | -094350 |
| Little gulf isl(ls) | 60 | +41200 | -072100 |
| Little rock adams field | 783 | +34733 | -092233 |
| Little rock afb | 1030 | +34917 | -092150 |
| Little smokey alberta | 6100 | +55316 | -116983 |
| Livermore municipal | 1210 | +37700 | -121817 |
| Livermore nas | 1969 | +37683 | -121700 |
| Livingston mission field | 14182 | +45700 | -110450 |
| Lockbourne | 2301 | +39817 | -082933 |
| Log cabin b c dot | 8840 | +59766 | -134983 |
| Logan-cache airport | 13580 | +41783 | -111850 |
| Lometa texas | 4110 | +31249 | -098500 |
| Lompoc (awos) | 270 | +34667 | -120467 |
| London-corbin ap | 3621 | +37083 | -084067 |
| Lone rock faa ap | 2192 | +43200 | -090183 |
| Lone rock regional | 2192 | +43217 | -090183 |
| Lonely | 91 | +70917 | -153250 |
| Long beach | 30 | +33767 | -118167 |
| Long beach daugherty fld | 76 | +33833 | -118167 |
| Long beach naval stn | 43 | +33750 | -118233 |
| Long beach ns | 43 | +33750 | -118233 |
| Long giao vietnam ab | 2500 | +10816 | +107216 |
| Long key | 60 | +24833 | -080867 |
| Longbeach radio | 49 | +33750 | -118333 |
| Longview gregg county ap | 1088 | +32383 | -094717 |
| Longview/gregg co. | 1240 | +32350 | -094650 |
| Longville | 4070 | +47000 | -094200 |
| Longville muni airp | 4070 | +46983 | -094200 |
| Loping china aaf | 15500 | +24950 | +104350 |
| Lorain (cgs) | 1760 | +41467 | -082183 |
| Loring afb | 2210 | +46950 | -067883 |
| Loring afb/limeston | 2270 | +46950 | -067883 |
| Los alamitos | 110 | +33783 | -118050 |
| Los alamitos aaf | 110 | +33783 | -118050 |
| Los alamos | 21790 | +35883 | -106283 |
| Los angeles downtown usc camp | 823 | +34050 | -118233 |
| Los angeles intl arpt | 305 | +33933 | -118400 |
| Los angeles municipal arpt | 381 | +33933 | -118383 |
| Los angeles nexrad | 9430 | +33817 | -117633 |
| Los negros admiralty is/moker | 40 | -02000 | +147450 |
| Los negros admrty is/momote s | 80 | -02050 | +147433 |
| Louisa | 1500 | +38017 | -077967 |
| Louisville bowman field | 1646 | +38233 | -085667 |
| Louisville nexrad | 2540 | +37983 | -085933 |
| Louisville standiford field | 1466 | +38183 | -085733 |
United states of america (US)