San Luis Obispo Light (CA)
Historical Light List Characteristics
| Year | Characteristic | Reference Number |
| Missing light lists prior to 1892 | ||
| 1892 | AlFl RW 60s. W17.5, R17.5. | LHB Light List (Dist. 12-13): 833 |
| 1893 | LHB Light List (Dist. 12-13): 857 | |
| 1894 | LHB Light List (Dist. 12-13): 874 | |
| 1895 | LHB Light List (Dist. 12-13): 890 | |
| 1896 | LHB Light List (Dist. 12-13): 991 | |
| Missing light lists for 1897-1899 | ||
| 1900 | AlFl RW 60s. W17.5, R17.5. | LHB Light List (Dist. 12-13): 13 |
| Missing light lists for 1901-1905 | ||
| 1906 | AlFl RW 60s. W17.5, R17.5. | LHB Light List (Dist. 12-13): 17 |
| Missing light lists for 1907-1910 | ||
| 1911 | AlFl RW 60s. W17, R17. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | ||
| 1914 | Fl W 20s. W17. fl 4. | USLHS Light List (Pacific): 24 |
| Missing light lists for 1915-1929 | ||
| 1930-1933 | Fl W 20s. W17. fl 4. | USLHS Light List (Pacific): 68 |
| Missing light lists for 1934-1944 | ||
| 1945 | Fl W 20s. W17. fl 3. | USCG Light List (Pacific): 192 |
| Missing light lists for 1946-1949 | ||
| 1950-1951 | Fl W 20s. W17. fl 3. | USCG Light List (Pacific): 192 |
| 1952-1959 | USCG Light List - Vol. I-V: 201 | |
| 1960 | Fl W 20s. W17. fl 1.6. | |
| 1961-1963 | USCG Light List - Vol. III: 201 | |
| 1964-1965 | USCG Light List - Vol. III: 27 | |
| 1966-1972 | Fl W 20s. W17. fl 0.8. | |
| 1973-1974 | Fl W 20s. W21. fl 0.8. | |
| 1975-1984 | Fl W 5s. W24. | USCG Light List - Vol. III: 32 |
| 1985 | USCG Light List - Vol. VI: 32 | |
| 1986 | USCG Light List - Vol. VI: 225 | |
| 1988 | ||
| 1990 | ||
| Missing light lists for 1991-2003 | ||
| 2004 | Fl W 5s. W20. | USCG Light List - Vol. VI: 225 |
Historical Light List Optics and Structures
| Year | Optic | Tower Height | Focal Plane | Description | Reference Number |
| Missing light lists prior to 1892 | |||||
| 1892 | 4th | 30 | NA | Square, white, frame tower attached to SW corner of a one-and-one-half story white frame dwelling with lead-colored trimmings, green blinds, and brown roof; lantern, black. | LHB Light List (Dist. 12-13): 833 |
| 1893 | 133 | LHB Light List (Dist. 12-13): 857 | |||
| 1894 | LHB Light List (Dist. 12-13): 874 | ||||
| 1895 | LHB Light List (Dist. 12-13): 890 | ||||
| 1896 | LHB Light List (Dist. 12-13): 991 | ||||
| Missing light lists for 1897-1899 | |||||
| 1900 | 4th | 30 | 130 | Square, white, frame tower attached to SW corner of a one-and-one-half story white frame dwelling with lead-colored trimmings, green blinds, and brown roof; lantern, black. | LHB Light List (Dist. 12-13): 13 |
| Missing light lists for 1901-1905 | |||||
| 1906 | 4th | 30 | 130 | Square, white, frame tower attached to southwesterly corner of a one-and-one-half story white frame dwelling with lead-colored trimmings, green blinds, and brown roof; lantern, black. | LHB Light List (Dist. 12-13): 17 |
| Missing light lists for 1907-1910 | |||||
| 1911 | 4th | NA | NA | White. Square tower attached to dwelling. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | |||||
| 1914 | NA | 30 | 130 | White; square wooden tower on dwelling. | USLHS Light List (Pacific): 24 |
| Missing light lists for 1915-1929 | |||||
| 1930 | 4 iov | 30 | 130 | White square wooden tower on dwelling. | USLHS Light List (Pacific): 68 |
| 1931-1933 | 40 | ||||
| Missing light lists for 1934-1944 | |||||
| 1945 | 4 e | 40 | 130 | White square wooden tower on dwelling. | USCG Light List (Pacific): 192 |
| Missing light lists for 1946-1949 | |||||
| 1950-1951 | 4 e | 40 | 130 | White square wooden tower on dwelling. | USCG Light List (Pacific): 192 |
| 1952-1960 | NA | White square tower on dwelling. | USCG Light List - Vol. I-V: 201 | ||
| 1961-1963 | USCG Light List - Vol. III: 201 | ||||
| 1964-1974 | USCG Light List - Vol. III: 27 | ||||
| 1975-1982 | NA | 116 | On pole. | USCG Light List - Vol. III: 32 | |
| 1983-1984 | On cylindrical structure. | ||||
| 1985 | USCG Light List - Vol. VI: 32 | ||||
| 1986 | USCG Light List - Vol. VI: 225 | ||||
| 1988 | |||||
| 1990 | |||||
| Missing light lists for 1991-2003 | |||||
| 2004 | NA | NA | 116 | NA | USCG Light List - Vol. VI: 225 |
 |
1890-Present |