Weather Records on 21 April 1964
1,125 weather records were set or tied worldwide on 21 April 1964. Highest significance: The Rock (Bullenbong), AU.
Key Facts for 21 April 1964
- On 21 April 1964, 1,125 weather records were set or tied at long-record stations worldwide.
- 209 were record highs and 83 were record lows, counting maximum and minimum temperature.
- By timescale, 1 were all-time records, 48 monthly and 1,076 daily.
- The Rock (Bullenbong) set a daily record precipitation of 59.2 mm (2.3 in) on 21 April 1964.
- Across 159 earlier years (1793 to 2026) the same calendar date averaged 458 records.
Record Map
1,125 stations| Station | Country | Type | Value | Significance |
|---|---|---|---|---|
| The Rock (Bullenbong) | Australia | Record daily precipitation | 59.2 mm (2.3 in) | 69 of 100 (Major) |
| Adelaide (Pooraka) | Australia | Record daily precipitation | 45.0 mm (1.8 in) | 68 of 100 (Major) |
| Jamberoo (Lorna) | Australia | Record daily precipitation | 143.5 mm (5.6 in) | 68 of 100 (Major) |
| Rocky Hall Post Office | Australia | Record daily precipitation | 76.7 mm (3.0 in) | 68 of 100 (Major) |
| Coromandel Valley (Branden) | Australia | Record daily precipitation | 55.4 mm (2.2 in) | 66 of 100 (Major) |
| Bowral Post Office | Australia | Record daily precipitation | 81.0 mm (3.2 in) | 66 of 100 (Major) |
| Booligal (Mycumbene) | Australia | Record daily precipitation | 61.0 mm (2.4 in) | 65 of 100 (Major) |
| Milparinka (Mount Arrowsmith) | Australia | Record daily precipitation | 52.6 mm (2.1 in) | 64 of 100 (Major) |
| Tallangatta Dcnr | Australia | Record daily precipitation | 71.4 mm (2.8 in) | 63 of 100 (Major) |
| Ada | United States | Record daily precipitation | 61.2 mm (2.4 in) | 63 of 100 (Major) |
| Adelaide (Glen Osmond) | Australia | Record daily precipitation | 43.9 mm (1.7 in) | 62 of 100 (Major) |
| Oberon (Jenolan Caves) | Australia | Record daily precipitation | 71.1 mm (2.8 in) | 62 of 100 (Major) |
| Wyndham Post Office | Australia | Record daily precipitation | 157.5 mm (6.2 in) | 62 of 100 (Major) |
| Barmedman Post Office | Australia | Record daily precipitation | 46.7 mm (1.8 in) | 62 of 100 (Major) |
| Marrar (Centenary Drive) | Australia | Record daily precipitation | 53.3 mm (2.1 in) | 62 of 100 (Major) |
| Cobram Post Office | Australia | Record daily precipitation | 49.3 mm (1.9 in) | 62 of 100 (Major) |
| Bethanga Lower | Australia | Record daily precipitation | 91.7 mm (3.6 in) | 62 of 100 (Major) |
| Swan Reach | Australia | Record daily precipitation | 30.5 mm (1.2 in) | 60 of 100 (Major) |
| West Wyalong (Tallimbalong) | Australia | Record daily precipitation | 40.1 mm (1.6 in) | 60 of 100 (Major) |
| Clarington Lock 14 | United States | Record daily precipitation | 49.0 mm (1.9 in) | 60 of 100 (Major) |
| Wagga Wagga (Kooringal) | Australia | Record daily precipitation | 47.0 mm (1.9 in) | 59 of 100 (Notable) |
| Everett | United States | Record daily precipitation | 83.8 mm (3.3 in) | 59 of 100 (Notable) |
| Olinda (Springdale) | Australia | Record daily precipitation | 63.5 mm (2.5 in) | 58 of 100 (Notable) |
| Candelo Post Office | Australia | Record daily precipitation | 160.0 mm (6.3 in) | 58 of 100 (Notable) |
| Delegate (Weewalla) | Australia | Record daily precipitation | 43.2 mm (1.7 in) | 58 of 100 (Notable) |
| Jindera (Wadilock) | Australia | Record daily precipitation | 41.9 mm (1.6 in) | 58 of 100 (Notable) |
| Mindarie | Australia | Record daily precipitation | 27.9 mm (1.1 in) | 57 of 100 (Notable) |
| Coolamon Post Office | Australia | Record daily precipitation | 88.9 mm (3.5 in) | 57 of 100 (Notable) |
| Jerilderie Treatment Works | Australia | Record daily precipitation | 40.1 mm (1.6 in) | 57 of 100 (Notable) |
| Yalgogrin North (Roloma) | Australia | Record daily precipitation | 55.4 mm (2.2 in) | 56 of 100 (Notable) |
| Cubbaroo | Australia | Record daily precipitation | 59.2 mm (2.3 in) | 56 of 100 (Notable) |
| Merriwa (Terragong) | Australia | Record daily precipitation | 83.1 mm (3.3 in) | 55 of 100 (Notable) |
| Finley Post Office | Australia | Record daily precipitation | 37.1 mm (1.5 in) | 55 of 100 (Notable) |
| Narooma Rvcp | Australia | Record daily precipitation | 92.7 mm (3.6 in) | 54 of 100 (Notable) |
| Temora Ambulance Station | Australia | Record daily precipitation | 36.8 mm (1.4 in) | 54 of 100 (Notable) |
| Tootool (Bryntirion) | Australia | Record daily precipitation | 55.9 mm (2.2 in) | 54 of 100 (Notable) |
| Mossgiel (Moolbong) | Australia | Record daily precipitation | 41.1 mm (1.6 in) | 53 of 100 (Notable) |
| Ashley (the Prairies) | Australia | Record daily precipitation | 44.5 mm (1.8 in) | 53 of 100 (Notable) |
| Mullaley (Bando) | Australia | Record daily precipitation | 63.5 mm (2.5 in) | 52 of 100 (Notable) |
| Murrabit R.W.C. | Australia | Record daily precipitation | 36.6 mm (1.4 in) | 52 of 100 (Notable) |
| Narrewilock | Australia | Record daily precipitation | 55.4 mm (2.2 in) | 52 of 100 (Notable) |
| Tangambalanga NE Dairy | Australia | Record daily precipitation | 64.3 mm (2.5 in) | 52 of 100 (Notable) |
| Versailles | United States | Record daily precipitation | 96.5 mm (3.8 in) | 52 of 100 (Notable) |
| Roto (Merimerriwa Tank) | Australia | Record daily precipitation | 32.3 mm (1.3 in) | 51 of 100 (Notable) |
| Bombala (Therry Street) | Australia | Record daily precipitation | 38.1 mm (1.5 in) | 51 of 100 (Notable) |
| Holbrook (Annandayle) | Australia | Record daily precipitation | 47.5 mm (1.9 in) | 51 of 100 (Notable) |
| Charleroi Lock 4 | United States | Record daily precipitation | 49.5 mm (1.9 in) | 51 of 100 (Notable) |
| Curlewis (Pine Cliff) | Australia | Record daily precipitation | 77.5 mm (3.1 in) | 50 of 100 (Notable) |
| Broke (Harrowby) | Australia | Record daily precipitation | 42.4 mm (1.7 in) | 50 of 100 (Notable) |
| Uppsala_Aut | Sweden | Record high minimum temperature | 8.9 C (48.0 F) | 50 of 100 (Notable) |
| Britton | United States | Record daily precipitation | 36.6 mm (1.4 in) | 50 of 100 (Notable) |
| Mitcham Post Office | Australia | Record daily precipitation | 51.8 mm (2.0 in) | 49 of 100 (Notable) |
| Belair (State Flora Nursery) | Australia | Record daily precipitation | 54.6 mm (2.1 in) | 49 of 100 (Notable) |
| Bermagui South (Young Street) | Australia | Record daily precipitation | 104.1 mm (4.1 in) | 49 of 100 (Notable) |
| Tocumwal Airport | Australia | Record daily precipitation | 30.5 mm (1.2 in) | 49 of 100 (Notable) |
| Mc Connellsville Lk 7 | United States | Record daily precipitation | 60.2 mm (2.4 in) | 49 of 100 (Notable) |
| Walla Walla Post Office | Australia | Record daily precipitation | 44.7 mm (1.8 in) | 48 of 100 (Notable) |
| Ellendale | United States | Record daily precipitation | 40.6 mm (1.6 in) | 48 of 100 (Notable) |
| Dalmorton Homestead | Australia | Record daily precipitation | 63.5 mm (2.5 in) | 47 of 100 (Notable) |
| Cobargo Post Office | Australia | Record daily precipitation | 89.4 mm (3.5 in) | 47 of 100 (Notable) |
Counts by Type and Timescale
1,125 records| Record type | Records |
|---|---|
| Highest daily maximum | 37 |
| Lowest daily maximum | 46 |
| Highest daily minimum | 172 |
| Lowest daily minimum | 37 |
| Heaviest daily rainfall | 824 |
| Heaviest daily snowfall | 9 |
| Deepest snow cover | 0 |
| Timescale | Records |
|---|---|
| all-time | 1 |
| monthly | 48 |
| daily | 1,076 |
How Much Records Were Beaten By
1,014 broken records| Margin | Records |
|---|---|
| 0 to 20 | 828 |
| 20 to 40 | 153 |
| 40 to 60 | 22 |
| 60 to 80 | 6 |
| 80 to 100 | 2 |
| 100 to 120 | 3 |
Top 20 by Significance
21 April 1964| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 21 April 1964 | The Rock (Bullenbong), AU | daily rain | 59.2 mm (2.3 in) | 38.6 mm (1.5 in) | 72 years | 69 of 100 (Major) |
| 21 April 1964 | Adelaide (Pooraka), AU | daily rain | 45.0 mm (1.8 in) | 34.1 mm (1.3 in) | 68 years | 68 of 100 (Major) |
| 21 April 1964 | Jamberoo (Lorna), AU | daily rain | 143.5 mm (5.6 in) | 105.1 mm (4.1 in) | 72 years | 68 of 100 (Major) |
| 21 April 1964 | Rocky Hall Post Office, AU | daily rain | 76.7 mm (3.0 in) | 71.4 mm (2.8 in) | 72 years | 68 of 100 (Major) |
| 21 April 1964 | Coromandel Valley (Branden), AU | daily rain | 55.4 mm (2.2 in) | 30.5 mm (1.2 in) | 68 years | 66 of 100 (Major) |
| 21 April 1964 | Bowral Post Office, AU | daily rain | 81.0 mm (3.2 in) | 58.1 mm (2.3 in) | 63 years | 66 of 100 (Major) |
| 21 April 1964 | Booligal (Mycumbene), AU | monthly rain | 61.0 mm (2.4 in) | 25.9 mm (1.0 in) | 35 years | 65 of 100 (Major) |
| 21 April 1964 | Milparinka (Mount Arrowsmith), AU | monthly rain | 52.6 mm (2.1 in) | 28.5 mm (1.1 in) | 25 years | 64 of 100 (Major) |
| 21 April 1964 | Tallangatta Dcnr, AU | monthly rain | 71.4 mm (2.8 in) | 22.1 mm (0.9 in) | 70 years | 63 of 100 (Major) |
| 21 April 1964 | Ada, US | monthly rain | 61.2 mm (2.4 in) | 24.4 mm (1.0 in) | 39 years | 63 of 100 (Major) |
| 21 April 1964 | Adelaide (Glen Osmond), AU | daily rain | 43.9 mm (1.7 in) | 32.5 mm (1.3 in) | 63 years | 62 of 100 (Major) |
| 21 April 1964 | Oberon (Jenolan Caves), AU | daily rain | 71.1 mm (2.8 in) | 38.1 mm (1.5 in) | 63 years | 62 of 100 (Major) |
| 21 April 1964 | Wyndham Post Office, AU | daily rain | 157.5 mm (6.2 in) | 114.8 mm (4.5 in) | 51 years | 62 of 100 (Major) |
| 21 April 1964 | Barmedman Post Office, AU | daily rain | 46.7 mm (1.8 in) | 32.5 mm (1.3 in) | 72 years | 62 of 100 (Major) |
| 21 April 1964 | Marrar (Centenary Drive), AU | daily rain | 53.3 mm (2.1 in) | 34.2 mm (1.3 in) | 71 years | 62 of 100 (Major) |
| 21 April 1964 | Cobram Post Office, AU | daily rain | 49.3 mm (1.9 in) | 38.4 mm (1.5 in) | 50 years | 62 of 100 (Major) |
| 21 April 1964 | Bethanga Lower, AU | monthly rain | 91.7 mm (3.6 in) | 40.9 mm (1.6 in) | 25 years | 62 of 100 (Major) |
| 21 April 1964 | Swan Reach, AU | daily rain | 30.5 mm (1.2 in) | 27.2 mm (1.1 in) | 48 years | 60 of 100 (Major) |
| 21 April 1964 | West Wyalong (Tallimbalong), AU | daily rain | 40.1 mm (1.6 in) | 24.6 mm (1.0 in) | 83 years | 60 of 100 (Major) |
| 21 April 1964 | Clarington Lock 14, US | daily rain | 49.0 mm (1.9 in) | 33.5 mm (1.3 in) | 48 years | 60 of 100 (Major) |
Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.
The Same Date in Other Years
1793 to 1964Counts for years before the ledger starts come from the same station rules.
| Year | Records |
|---|---|
| 1793 | 1 |
| 1814 | 1 |
| 1820 | 1 |
| 1838 | 1 |
| 1849 | 2 |
| 1851 | 1 |
| 1852 | 3 |
| 1854 | 1 |
| 1858 | 3 |
| 1861 | 2 |
| 1865 | 3 |
| 1866 | 1 |
| 1868 | 1 |
| 1870 | 1 |
| 1875 | 4 |
| 1876 | 2 |
| 1877 | 1 |
| 1879 | 3 |
| 1880 | 1 |
| 1881 | 1 |
| 1882 | 1 |
| 1884 | 1 |
| 1885 | 2 |
| 1888 | 1 |
| 1890 | 1 |
| 1891 | 1 |
| 1892 | 1 |
| 1893 | 2 |
| 1894 | 4 |
| 1895 | 1 |
| 1897 | 1 |
| 1898 | 2 |
| 1899 | 2 |
| 1900 | 7 |
| 1901 | 17 |
| 1902 | 7 |
| 1903 | 3 |
| 1904 | 10 |
| 1905 | 18 |
| 1906 | 5 |
| 1907 | 17 |
| 1908 | 25 |
| 1909 | 20 |
| 1910 | 33 |
| 1911 | 9 |
| 1912 | 22 |
| 1913 | 14 |
| 1914 | 220 |
| 1915 | 24 |
| 1916 | 64 |
| 1917 | 48 |
| 1918 | 84 |
| 1919 | 31 |
| 1920 | 85 |
| 1921 | 59 |
| 1922 | 70 |
| 1923 | 223 |
| 1924 | 119 |
| 1925 | 295 |
| 1926 | 148 |
| 1927 | 284 |
| 1928 | 269 |
| 1929 | 193 |
| 1930 | 127 |
| 1931 | 358 |
| 1932 | 304 |
| 1933 | 201 |
| 1934 | 497 |
| 1935 | 266 |
| 1936 | 277 |
| 1937 | 416 |
| 1938 | 295 |
| 1939 | 110 |
| 1940 | 462 |
| 1941 | 306 |
| 1942 | 285 |
| 1943 | 481 |
| 1944 | 261 |
| 1945 | 367 |
| 1946 | 448 |
| 1947 | 459 |
| 1948 | 365 |
| 1949 | 448 |
| 1950 | 529 |
| 1951 | 884 |
| 1952 | 665 |
| 1953 | 640 |
| 1954 | 527 |
| 1955 | 607 |
| 1956 | 497 |
| 1957 | 824 |
| 1958 | 329 |
| 1959 | 505 |
| 1960 | 889 |
| 1961 | 647 |
| 1962 | 319 |
| 1963 | 778 |
| 1964 | 1,125 |
| 1965 | 658 |
| 1966 | 756 |
| 1967 | 903 |
| 1968 | 655 |
| 1969 | 388 |
| 1970 | 728 |
| 1971 | 546 |
| 1972 | 593 |
| 1973 | 1,163 |
| 1974 | 528 |
| 1975 | 360 |
| 1976 | 452 |
| 1977 | 854 |
| 1978 | 735 |
| 1979 | 449 |
| 1980 | 1,934 |
| 1981 | 944 |
| 1982 | 1,075 |
| 1983 | 1,366 |
| 1984 | 1,231 |
| 1985 | 1,245 |
| 1986 | 977 |
| 1987 | 1,290 |
| 1988 | 898 |
| 1989 | 1,557 |
| 1990 | 1,463 |
| 1991 | 1,291 |
| 1992 | 1,763 |
| 1993 | 847 |
| 1994 | 859 |
| 1995 | 1,476 |
| 1996 | 788 |
| 1997 | 964 |
| 1998 | 876 |
| 1999 | 752 |
| 2000 | 921 |
| 2001 | 967 |
| 2002 | 1,312 |
| 2003 | 607 |
| 2004 | 586 |
| 2005 | 693 |
| 2006 | 761 |
| 2007 | 480 |
| 2008 | 1,327 |
| 2009 | 983 |
| 2010 | 805 |
| 2011 | 1,053 |
| 2012 | 687 |
| 2013 | 1,015 |
| 2014 | 393 |
| 2015 | 621 |
| 2016 | 587 |
| 2017 | 797 |
| 2018 | 862 |
| 2019 | 731 |
| 2020 | 397 |
| 2021 | 1,608 |
| 2022 | 433 |
| 2023 | 886 |
| 2024 | 754 |
| 2025 | 506 |
| 2026 | 853 |
Download the Data
Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).