| Classification of Days | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Quietest Days | Most Disturbed Days | |||||||||||||
| Q1 | Q2 | Q3 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | Q10 | D1 | D2 | D3 | D4 | D5 | |
| Jan 1950 | 8 | 31 | 17 | 29 | 3 | 23 | 18K | 12 | 5 | 2A | 24 | 25 | 20 | 14 | 21* |
| Feb 1950 | 26 | 17 | 10 | 13 | 18 | 16 | 27 | 11 | 19 | 14 | 21 | 20 | 23 | 24 | 22 |
| Mar 1950 | 11 | 10 | 13 | 18 | 12 | 8 | 4 | 23 | 5 | 17 | 19 | 27 | 21 | 22 | 24 |
| Apr 1950 | 21 | 26 | 27K | 14 | 22K | 11A | 8A | 25A | 9A | 10A | 5 | 1 | 2 | 30 | 24 |
| May 1950 | 9 | 18 | 8 | 19K | 12 | 17 | 31K | 1 | 21A | 20A | 28 | 3 | 27 | 23 | 15 |
| Jun 1950 | 13 | 15 | 19 | 28 | 20 | 7 | 27 | 14 | 16K | 4A | 24 | 30 | 6 | 29 | 9 |
| Jul 1950 | 23 | 19 | 26 | 18 | 2 | 8 | 20 | 17A | 27A | 10A | 12 | 25 | 24 | 11 | 4 |
| Aug 1950 | 26 | 17 | 25 | 24 | 16 | 27 | 5 | 22 | 23A | 31A | 19 | 20 | 8 | 10 | 9 |
| Sep 1950 | 29 | 15 | 14 | 22 | 1 | 2 | 28A | 21A | 12A | 27A | 5 | 3 | 6 | 4 | 8 |
| Oct 1950 | 27 | 21 | 19 | 10 | 11 | 25K | 20 | 26 | 24A | 22A | 28 | 2 | 29 | 1 | 31 |
| Nov 1950 | 7 | 20 | 15 | 6 | 21K | 19K | 9 | 16 | 8A | 23A | 26 | 1 | 25 | 27 | 4 |
| Dec 1950 | 11 | 31 | 4 | 1K | 21K | 17A | 29A | 30A | 3A | 5A | 24 | 13 | 23 | 14 | 25 |
| Jan 1951 | 7 | 6 | 9 | 18 | 4A | 25A | 8A | 20A | 5A | 17A | 22 | 31 | 23 | 28 | 15 |
| Feb 1951 | 16 | 3 | 17 | 15 | 2 | 20 | 7A | 4A | 21A | 19A | 23 | 28 | 27 | 22 | 24 |
| Mar 1951 | 28 | 5 | 2A | 21A | 4A | 31A | 20A | 30A | 19A | 3A | 13 | 22 | 14 | 8 | 10 |
| Apr 1951 | 30 | 1A | 16A | 28A | 15A | 27A | 17A | 11A | 29A | 26A | 3 | 5 | 18 | 6 | 4 |
| May 1951 | 21 | 8 | 13 | 20 | 28 | 22A | 7A | 5A | 19A | 31A | 2 | 1 | 10 | 26 | 3 |
| Jun 1951 | 23K | 10A | 24A | 20A | 4A | 22A | 5A | 30A | 3A | 29A | 18 | 25 | 19 | 15 | 17 |
| Jul 1951 | 14 | 12A | 13A | 24A | 21A | 11A | 10A | 7A | 8A | 6A | 2 | 31 | 28 | 22 | 26 |
| Aug 1951 | 18K | 8A | 3A | 30A | 10A | 14A | 6A | 7A | 9A | 19A | 21 | 20 | 13 | 25 | 26 |
| Sep 1951 | 2 | 1A | 4A | 7A | 3A | 8A | 30A | 28A | 5A | 9A | 25 | 20 | 21 | 22 | 16 |
| Oct 1951 | 25 | 6 | 31 | 4 | 24 | 5K | 1A | 3A | 30A | 27A | 17 | 28 | 8 | 19 | 18 |
| Nov 1951 | 10 | 1 | 19A | 27A | 11A | 18A | 8A | 21A | 26A | 16A | 14 | 13 | 3 | 4 | 15 |
| Dec 1951 | 26 | 24 | 25 | 6K | 21A | 30A | 13A | 29A | 14A | 16A | 28 | 8 | 9 | 31 | 22 |
| Jan 1952 | 18 | 20 | 19 | 26K | 21 | 17A | 2A | 22A | 3A | 31A | 5 | 13 | 14 | 15 | 12 |
| Feb 1952 | 5 | 4 | 21 | 22K | 3 | 15A | 23A | 17A | 20A | 2A | 24 | 16 | 8 | 6 | 27 |
| Mar 1952 | 20 | 28 | 2 | 19A | 29A | 14A | 13A | 18A | 1A | 26A | 5 | 31 | 6 | 4 | 7 |
| Apr 1952 | 27 | 26A | 20A | 25A | 12A | 11A | 14A | 24A | 17A | 18A | 29 | 3 | 2 | 21 | 30 |
| May 1952 | 16 | 9 | 22 | 15 | 17K | 10K | 23A | 14A | 12A | 13A | 27 | 7 | 3 | 2 | 1 |
| Jun 1952 | 7 | 21 | 20 | 13 | 6 | 4K | 19 | 28A | 2A | 12A | 30 | 24 | 9 | 23 | 14 |
| Jul 1952 | 29 | 30 | 28 | 19 | 2A | 18A | 17A | 12A | 27A | 7A | 5 | 21 | 20 | 6 | 9 |
| Aug 1952 | 25 | 14 | 28 | 16K | 26 | 22 | 24 | 21 | 13 | 15K | 18 | 17 | 3 | 30 | 12 |
| Sep 1952 | 19 | 23 | 18 | 13 | 17 | 22A | 16A | 20A | 4A | 24A | 29 | 8 | 1 | 30 | 9 |
| Oct 1952 | 24 | 23 | 22 | 15 | 13A | 20A | 16A | 19A | 14A | 27A | 4 | 5 | 31 | 26 | 30 |
| Nov 1952 | 13 | 10 | 12 | 11 | 4 | 19 | 20 | 5 | 14 | 18A | 27 | 21 | 1 | 26 | 28 |
| Dec 1952 | 9 | 23 | 21 | 20 | 19 | 8 | 14 | 7 | 22A | 6A | 4 | 29 | 13 | 30 | 2 |
| Jan 1953 | 16 | 15 | 17 | 10 | 4 | 12 | 23A | 22A | 7A | 11A | 5 | 26 | 27 | 28 | 19 |
| Feb 1953 | 7 | 13 | 6 | 5 | 1 | 8 | 12 | 18 | 20K | 3 | 24 | 26 | 25 | 23 | 22 |
| Mar 1953 | 18 | 13K | 12 | 17 | 11A | 31A | 6A | 5A | 4A | 20A | 2 | 24 | 25 | 9 | 23 |
| Apr 1953 | 7 | 14 | 5 | 28A | 6A | 9A | 8A | 24A | 29A | 27A | 16 | 20 | 4 | 21 | 23 |
| May 1953 | 13 | 14 | 3 | 2 | 12 | 30 | 1 | 25 | 29 | 4 | 16 | 15 | 6 | 8 | 19 |
| Jun 1953 | 26 | 23 | 27 | 16 | 19 | 28 | 1 | 9 | 8 | 25 | 2 | 29 | 30 | 3 | 4 |
| Jul 1953 | 16 | 17 | 18 | 11K | 21 | 19 | 22K | 10K | 20A | 25A | 27 | 23 | 29 | 2 | 1 |
| Aug 1953 | 20 | 21 | 22 | 19 | 17 | 18 | 5 | 6 | 8 | 3A | 24 | 30 | 27 | 12 | 23 |
| Sep 1953 | 14 | 29 | 9A | 30A | 28A | 10A | 26A | 13A | 8A | 12A | 19 | 4 | 23 | 3 | 20 |
| Oct 1953 | 14 | 5 | 12 | 13 | 6 | 4 | 26 | 2 | 3A | 30A | 19 | 18 | 16 | 15 | 20 |
| Nov 1953 | 10 | 28 | 30 | 2 | 9 | 8 | 4 | 1 | 11 | 7 | 13 | 15 | 19 | 14 | 16 |
| Dec 1953 | 1 | 2 | 31 | 30 | 23 | 21 | 10 | 26 | 3 | 16 | 11 | 12 | 13* | 22* | 4* |
| Jan 1954 | 4 | 29 | 28 | 26 | 10 | 27 | 24 | 1 | 30 | 14 | 19 | 2 | 20* | 21* | 23* |
| Feb 1954 | 6 | 7 | 12 | 5 | 8 | 13A | 20A | 9A | 10A | 14A | 22 | 26 | 27 | 15 | 21 |
| Mar 1954 | 29 | 28 | 1A | 3A | 27A | 10A | 6A | 4A | 31A | 8A | 23 | 14 | 15 | 24 | 22 |
| Apr 1954 | 28 | 29A | 1A | 7A | 25A | 17A | 22A | 16A | 6A | 5A | 12 | 11 | 20* | 15* | 4* |
| May 1954 | 17 | 7 | 30 | 25 | 1 | 22 | 27K | 28 | 26 | 16K | 11* | 4* | 18* | 9* | 21* |
| Jun 1954 | 5 | 8 | 16 | 24 | 11 | 15 | 17 | 6 | 29 | 1 | 10* | 28* | 12* | 13* | 14* |
| Jul 1954 | 4 | 9 | 3 | 10 | 2 | 11 | 22 | 5 | 13 | 8 | 28* | 25* | 14* | 27* | 1* |
| Aug 1954 | 3 | 8 | 5 | 13 | 4K | 12A | 20A | 10A | 15A | 11A | 24 | 6* | 26* | 22* | 29* |
| Sep 1954 | 12 | 23A | 8A | 13A | 19A | 24A | 17A | 10A | 26A | 22A | 20 | 29 | 14 | 1 | 21 |
| Oct 1954 | 12 | 13 | 10 | 9K | 15 | 29K | 21 | 11K | 14K | 28 | 24 | 1 | 18 | 3 | 25 |
| Nov 1954 | 16 | 15 | 10 | 17 | 9 | 13 | 7 | 8 | 11 | 28 | 1 | 2 | 3* | 30* | 20* |
| Dec 1954 | 15 | 11 | 16 | 10 | 14 | 24 | 26 | 23 | 22 | 6 | 27* | 17* | 18* | 20* | 7* |
| Jan 1955 | 15 | 26 | 25 | 10 | 24 | 3 | 31 | 8 | 22 | 5K | 18 | 19 | 17 | 9 | 20* |
| Feb 1955 | 1 | 2 | 27 | 19 | 10 | 16 | 17K | 15A | 20A | 18A | 28 | 23 | 4* | 22* | 5* |
| Mar 1955 | 1 | 29 | 2 | 3 | 4 | 28 | 19 | 25 | 20K | 21A | 31 | 22 | 7 | 9 | 10 |
| Apr 1955 | 18 | 23 | 19 | 16 | 15 | 17 | 9K | 21A | 14A | 22A | 28 | 27 | 29 | 5* | 7* |
| May 1955 | 23 | 19 | 24 | 21 | 17 | 18 | 30 | 22 | 11 | 2 | 26 | 8 | 6 | 25 | 7 |
| Jun 1955 | 30 | 26 | 21 | 5 | 10 | 3 | 20K | 27 | 29 | 11K | 8 | 15* | 23* | 24* | 16* |
| Jul 1955 | 19 | 4 | 5 | 28 | 20 | 21 | 22 | 1 | 25 | 14 | 12 | 11* | 2* | 26* | 15* |
| Aug 1955 | 22 | 23 | 11 | 1 | 25 | 12 | 2 | 20 | 21 | 30 | 6 | 4 | 5* | 28 | 7* |
| Sep 1955 | 26 | 25 | 21 | 11 | 15 | 10 | 14K | 9A | 24A | 8A | 30 | 5 | 13 | 27 | 29 |
| Oct 1955 | 12 | 18 | 24 | 13 | 19 | 15 | 17 | 21 | 14 | 23 | 25 | 26 | 31 | 5 | 6 |
| Nov 1955 | 7 | 6 | 3 | 22 | 23 | 10 | 14 | 26 | 30 | 27 | 19 | 20 | 18 | 16 | 4 |
| Dec 1955 | 29 | 14 | 18 | 23 | 13 | 30 | 17 | 11 | 12 | 15 | 1 | 25* | 26* | 27* | 6* |
| Jan 1956 | 26 | 15 | 20 | 8 | 16K | 17A | 13A | 14A | 21A | 7A | 18 | 11 | 28 | 24 | 19 |
| Feb 1956 | 8 | 9 | 10 | 7 | 14 | 18 | 15 | 17 | 20K | 5 | 25 | 29 | 12 | 28 | 11 |
| Mar 1956 | 9 | 8 | 17 | 7 | 18 | 16 | 15A | 5A | 12A | 13A | 3 | 22 | 29 | 21 | 24 |
| Apr 1956 | 24 | 15A | 14A | 13A | 25A | 20A | 9A | 23A | 8A | 12A | 27 | 22 | 28 | 21 | 30 |
| May 1956 | 10 | 9 | 8 | 2 | 11K | 31 | 27A | 19A | 7A | 18A | 16 | 24 | 25 | 17 | 15 |
| Jun 1956 | 18A | 7A | 20A | 19A | 3A | 22A | 4A | 17A | 12A | 21A | 25 | 24 | 15 | 30 | 1 |
| Jul 1956 | 7 | 21 | 18 | 22 | 17 | 6 | 4A | 15A | 16A | 5A | 26 | 25 | 24 | 28 | 13 |
| Aug 1956 | 19 | 20 | 7 | 18 | 5 | 4 | 15 | 6 | 14 | 16 | 24 | 25 | 26 | 11 | 23 |
| Sep 1956 | 18 | 19 | 14 | 29 | 17 | 15K | 27 | 24 | 30A | 5A | 2 | 8 | 3 | 22 | 21 |
| Oct 1956 | 15 | 14 | 13 | 25 | 17 | 18 | 16 | 12 | 19 | 10 | 20 | 26 | 21 | 27 | 2 |
| Nov 1956 | 19 | 5 | 8 | 26K | 7A | 2A | 4A | 24A | 27A | 6A | 15 | 11 | 14 | 10 | 16 |
| Dec 1956 | 16 | 17 | 15 | 11 | 21 | 23 | 19 | 31 | 20 | 9 | 10 | 28 | 25 | 13* | 30* |
| Jan 1957 | 18 | 14 | 20 | 5 | 13 | 4 | 17 | 6 | 28A | 12A | 21 | 22 | 30 | 10 | 23 |
| Feb 1957 | 28 | 26 | 7 | 10K | 27K | 1A | 9A | 8A | 14A | 16A | 24 | 13 | 5 | 21 | 4 |
| Mar 1957 | 14 | 12A | 11A | 7A | 13A | 19A | 24A | 15A | 26A | 20A | 2 | 29 | 10 | 28 | 27 |
| Apr 1957 | 7 | 14 | 22 | 25A | 13A | 23A | 8A | 12A | 30A | 29A | 19 | 10 | 17 | 18 | 5 |
| May 1957 | 16 | 15 | 29 | 12 | 24K | 14 | 18 | 22 | 28 | 17A | 26 | 30 | 9 | 1* | 20* |
| Jun 1957 | 11 | 10 | 9 | 1 | 2 | 29 | 16 | 12A | 14A | 8A | 30 | 26 | 25 | 4 | 3 |
| Jul 1957 | 13 | 26 | 10 | 15 | 11 | 30 | 14 | 21 | 9 | 28K | 1 | 5 | 2 | 3 | 19 |
| Aug 1957 | 24 | 23 | 17 | 22 | 11 | 16 | 1 | 25A | 18A | 14A | 30 | 13 | 31 | 6 | 3 |
| Sep 1957 | 27 | 19 | 11 | 20 | 8A | 12A | 10A | 26A | 28A | 7A | 23 | 13 | 3 | 29 | 4 |
| Oct 1957 | 6 | 8 | 16 | 7 | 18 | 17A | 9A | 31A | 26A | 25A | 14 | 21 | 13 | 1 | 11* |
| Nov 1957 | 5 | 4 | 21 | 22 | 17K | 23A | 2A | 1A | 19A | 30A | 26 | 27 | 25 | 9 | 28 |
| Dec 1957 | 23 | 28 | 22 | 29K | 27 | 24A | 14A | 4A | 8A | 18A | 31 | 11 | 12 | 6 | 1 |
| Jan 1958 | 4 | 3 | 8 | 7 | 5K | 6A | 28A | 27A | 30A | 31A | 1 | 21 | 18 | 17 | 23 |
| Feb 1958 | 25 | 3K | 26A | 15A | 24A | 2A | 1A | 27A | 16A | 28A | 11 | 12 | 18 | 17 | 6 |
| Mar 1958 | 1K | 2A | 29A | 28A | 16A | 27A | 14A | 10A | 31A | 9A | 12 | 13 | 19 | 5 | 20 |
| Apr 1958 | 10 | 13 | 12 | 22 | 11A | 23A | 9A | 8A | 27A | 25A | 17 | 18 | 4 | 2 | 16 |
| May 1958 | 24 | 23 | 20 | 22 | 7 | 21K | 3A | 6A | 4A | 25A | 31 | 29 | 26 | 14 | 13 |
| Jun 1958 | 17 | 4 | 3 | 18A | 20A | 27A | 26A | 5A | 19A | 30A | 29 | 7 | 21 | 1 | 28 |
| Jul 1958 | 15 | 6 | 23 | 2 | 16A | 29A | 28A | 26A | 5A | 30A | 8 | 9 | 21 | 18 | 27 |
| Aug 1958 | 4 | 6 | 8 | 5 | 20 | 21 | 9A | 14A | 31A | 15A | 24 | 17 | 27 | 22 | 18 |
| Sep 1958 | 13 | 22 | 21 | 18 | 14 | 20 | 19 | 2 | 23 | 12 | 4 | 25 | 5 | 3 | 16 |
| Oct 1958 | 12 | 10 | 9 | 4 | 11 | 20K | 21K | 14A | 13A | 18A | 24 | 23 | 22 | 27 | 28 |
| Nov 1958 | 30 | 5 | 6 | 8 | 22 | 14 | 21 | 20 | 9 | 19 | 11* | 28* | 2* | 10* | 3* |
| Dec 1958 | 1 | 10 | 25 | 7 | 12 | 31A | 3A | 24A | 21A | 11A | 4 | 18 | 13 | 17 | 19 |
| Jan 1959 | 1 | 21 | 2 | 20 | 24 | 3 | 4A | 22A | 14A | 23A | 9 | 10 | 6 | 5 | 18* |
| Feb 1959 | 24 | 20 | 18 | 10 | 21 | 7A | 1A | 8A | 19A | 23A | 25 | 16 | 26 | 28 | 4 |
| Mar 1959 | 10 | 9 | 16 | 11 | 22 | 20 | 17 | 21 | 6K | 19 | 27 | 28 | 26 | 29 | 1 |
| Apr 1959 | 22 | 20 | 19 | 18 | 5 | 6 | 16 | 2 | 4A | 17A | 10 | 9 | 23 | 24 | 29 |
| May 1959 | 29 | 6 | 28 | 27 | 14 | 7K | 30K | 3A | 2A | 26A | 12 | 24 | 8 | 16 | 15 |
| Jun 1959 | 13 | 17K | 12K | 16 | 25K | 1A | 19A | 21A | 20A | 15A | 29 | 30 | 28 | 27 | 4 |
| Jul 1959 | 30 | 3 | 1 | 29A | 13A | 6A | 10A | 23A | 4A | 2A | 15 | 18 | 17 | 16 | 25 |
| Aug 1959 | 28 | 27 | 12 | 13 | 14 | 26A | 11A | 5A | 30A | 31A | 16 | 17 | 20 | 21 | 18 |
| Sep 1959 | 9 | 7A | 10A | 29A | 8A | 30A | 13A | 12A | 11A | 16A | 4 | 21 | 22 | 20 | 25 |
| Oct 1959 | 11 | 13 | 16 | 28 | 10 | 21K | 29K | 9K | 24 | 12A | 4 | 6 | 1 | 3 | 31 |
| Nov 1959 | 15 | 20K | 11 | 12A | 24A | 16A | 9A | 25A | 10A | 7A | 28 | 2 | 1 | 3 | 30 |
| Dec 1959 | 21 | 10 | 11 | 22K | 7K | 20 | 31A | 8A | 17A | 9A | 5 | 3 | 28 | 14 | 27 |
