Return to Table of Data Coverage
| STATION | YEAR | DATE of UPDATING |
|---|---|---|
| CHICAG | 1971 | 05 December 1990 |
| CHICAG | 1971 | 27 December 1984 |
| CHICAG | 1971 | 26 November 1976 |
| CHICAG | 1970 | 05 December 1990 |
| CHICAG | 1970 | |
| CHICAG | 1969 | 05 December 1990 |
| CHICAG | 1969 | |
| CHICAG | 1968 | 05 December 1990 |
| CHICAG | 1968 | |
| CHICAG | 1967 | |
| CHICAG | 1966 | 05 December 1990 |
| CHICAG | 1966 | |
| CHICAG | 1965 | 05 December 1990 |
| CHICAG | 1965 | |
| CHICAG | 1964 | 05 December 1990 |
| CHICAG | 1964 | 22 January 1980 |
| CHICAG | 1964 | |
| CHICAG | 1963 | 18 April 1989 |
| CHICAG | 1962 | 05 December 1990 |
| CHICAG | 1962 | 18 April 1989 |
| CHICAG | 1961 | 18 April 1989 |
| CHICAG | 1960 | 05 December 1990 |
| CHICAG | 1960 | 18 April 1989 |
| CHICAG | 1959 | 05 December 1990 |
| CHICAG | 1959 | 18 April 1989 |
| CHICAG | 1958 | 05 December 1990 |
| CHICAG | 1958 | 18 April 1989 |
| CHICAG | 1957 | 05 December 1990 |
| CHICAG | 1957 | 18 April 1989 |