St. Johns (Florida)
Historical Light List Characteristics
| 1955 | Fl(4) W 20s. W15. (fl 1, ec 1.5) x 3, fl 1, ec 11.5. Obscured 000°-174°(174°). F. R. aerial obstruction light atop lantern. | USCG Light List - Vol. I-VI: 3725 |
| 1957 | ||
| 1959-1960 | USCG Light List - Vol. I-V: 4336 | |
| 1961 | USCG Light List - Vol. II: 4336 | |
| 1963 | ||
| 1965-1966 | ||
| 1969-1970 | USCG Light List - Vol. II: 42 | |
| 1972 | ||
| 1973-1974 | Fl(4) W 20s. W22. (fl 1, ec 1.5) x 3, fl 1, ec 11.5. Obscured 000°-174°(174°). F. R. aerial obstruction light atop lantern. | |
| 1976 | ||
| 1978 | ||
| 1982 | ||
| 1990 | Fl(4) W 20s. W22. (fl 1, ec 1.5) x 3, fl 1, ec 11.5. Obscured 179°-354°(175°). F R aerial obstruction light atop lantern. | USCG Light List - Vol. III: 570 |
| 1994 | USCG Light List - Vol. III: 330 | |
| 2004 | Fl(4) W 20s. W19. (fl 1, ec 2.3) x 3, fl 1, ec 9.1. Obscured 354°-179°(185°). | USCG Light List - Vol. III: 575 |
Historical Light List Optics and Structures
| 1955 | N/A | N/A | 83 | White square tower. | USCG Light List - Vol. I-VI: 3725 |
| 1957 | |||||
| 1959-1960 | USCG Light List - Vol. I-V: 4336 | ||||
| 1961 | USCG Light List - Vol. II: 4336 | ||||
| 1963 | |||||
| 1965-1966 | |||||
| 1969-1970 | USCG Light List - Vol. II: 42 | ||||
| 1972-1974 | |||||
| 1976 | |||||
| 1978 | |||||
| 1982 | |||||
| 1990 | White square tower on building. | USCG Light List - Vol. III: 570 | |||
| 1994 | USCG Light List - Vol. III: 330 | ||||
| 2004 | USCG Light List - Vol. III: 575 |
Historical Light List Audible Fog Signals
| 1955 | HORN, diaphragm; gp of 2 blasts ev 30s (2sbl-2ssi-2sbl-24ssi) on outer end of south breakwater. | None | USCG Light List - Vol. I-VI: 3725 |
| 1957 | |||
| 1959-1960 | USCG Light List - Vol. I-V: 4336 | ||
| 1961 | USCG Light List - Vol. II: 4336 | ||
| 1963 | |||
| 1965-1966 | None | ||
| 1969-1970 | USCG Light List - Vol. II: 42 | ||
| 1972-1974 | |||
| 1976 | |||
| 1978 | |||
| 1982 | |||
| 1990 | USCG Light List - Vol. III: 570 | ||
| 1994 | USCG Light List - Vol. III: 330 | ||
| 2004 | USCG Light List - Vol. III: 575 |
Historical Light List Other Signals
| 1955 | RADIOBEACON: 306 kc (Code:   ). Antenna 1,210 yards 013° from light tower. |
USCG Light List - Vol. I-VI: 3725 |
| 1957 | RADIOBEACON: 316 kc (Code: ). Antenna 1,210 yards 013° from light tower. |
|
| 1959-1960 | USCG Light List - Vol. I-V: 4336 | |
| 1961 | RADIOBEACON: 316 kc (Code: ). Antenna 60 yards 090° from light tower. |
USCG Light List - Vol. II: 4336 |
| 1963 | RADIOBEACON: Antenna 60 yards 090° from light tower. | |
| 1965-1966 | ||
| 1969-1970 | USCG Light List - Vol. II: 42 | |
| 1972-1974 | ||
| 1976 | RBN: 306 kHz (). Antenna 60 yards 090° from light tower. |
|
| 1978 | ||
| 1982 | RBN: 306 kHz R(). Antenna 60 yards 090° from light tower. |
|
| 1990 | RBN: 306 kHz R (). Antenna 60 yards 090° from light tower. |
USCG Light List - Vol. III: 570 |
| 1994 | FREQ: 306 kHz. R (). Antenna 60 yards, 090° from St. Johns Light tower. |
USCG Light List - Vol. III: 330 |
| 2004 | None | USCG Light List - Vol. III: 575 |
 |
1954 - Present |