Weather Records on 18 August 2011
1,239 weather records were set or tied worldwide on 18 August 2011. Highest significance: St Marys (Cullenswood), AU.
Key Facts for 18 August 2011
- On 18 August 2011, 1,239 weather records were set or tied at long-record stations worldwide.
- 598 were record highs and 141 were record lows, counting maximum and minimum temperature.
- By timescale, 5 were all-time records, 40 monthly and 1,194 daily.
- St Marys (Cullenswood) set a daily record precipitation of 124.2 mm (4.9 in) on 18 August 2011.
- Across 171 earlier years (1797 to 2026) the same calendar date averaged 436 records.
Record Map
1,239 stations| Station | Country | Type | Value | Significance |
|---|---|---|---|---|
| St Marys (Cullenswood) | Australia | Record daily precipitation | 124.2 mm (4.9 in) | 77 of 100 (Major) |
| Lorinna | Australia | Record daily precipitation | 91.6 mm (3.6 in) | 73 of 100 (Major) |
| Koorawatha (Boorowa Street) | Australia | Record daily precipitation | 37.0 mm (1.5 in) | 72 of 100 (Major) |
| Oatlands Post Office | Australia | Record daily precipitation | 30.0 mm (1.2 in) | 68 of 100 (Major) |
| Wantabadgery | Australia | Record daily precipitation | 36.5 mm (1.4 in) | 67 of 100 (Major) |
| Wellington (Agrowplow) | Australia | Record daily precipitation | 45.6 mm (1.8 in) | 66 of 100 (Major) |
| Yalgogrin North (Roloma) | Australia | Record daily precipitation | 34.2 mm (1.3 in) | 65 of 100 (Major) |
| Culcairn Bowling Club | Australia | Record daily precipitation | 35.4 mm (1.4 in) | 65 of 100 (Major) |
| Caragabal Post Office | Australia | Record daily precipitation | 30.0 mm (1.2 in) | 64 of 100 (Major) |
| Roermond | Netherlands | Record daily precipitation | 43.2 mm (1.7 in) | 64 of 100 (Major) |
| Colbinabbin | Australia | Record daily precipitation | 26.0 mm (1.0 in) | 62 of 100 (Major) |
| Lockhart Bowling Club | Australia | Record daily precipitation | 35.0 mm (1.4 in) | 61 of 100 (Major) |
| Junee Treatment Works | Australia | Record daily precipitation | 28.4 mm (1.1 in) | 60 of 100 (Major) |
| Wymah (Gwandallen) | Australia | Record daily precipitation | 42.6 mm (1.7 in) | 59 of 100 (Notable) |
| Greenethorpe (Iandra) | Australia | Record daily precipitation | 36.0 mm (1.4 in) | 59 of 100 (Notable) |
| Leckford | United Kingdom | Record daily precipitation | 54.0 mm (2.1 in) | 59 of 100 (Notable) |
| Geurie Post Office | Australia | Record daily precipitation | 44.4 mm (1.7 in) | 58 of 100 (Notable) |
| Tarcutta (Wollumbi) | Australia | Record daily precipitation | 34.0 mm (1.3 in) | 58 of 100 (Notable) |
| Quandialla Post Office | Australia | Record daily precipitation | 30.0 mm (1.2 in) | 58 of 100 (Notable) |
| Chiltern (Post Office) | Australia | Record daily precipitation | 32.8 mm (1.3 in) | 58 of 100 (Notable) |
| Eddystone Point | Australia | Record daily precipitation | 32.4 mm (1.3 in) | 58 of 100 (Notable) |
| Bumbaldry (Gold 'N' Grove) | Australia | Record daily precipitation | 47.0 mm (1.9 in) | 57 of 100 (Notable) |
| Mole Creek | Australia | Record daily precipitation | 64.8 mm (2.6 in) | 57 of 100 (Notable) |
| Manildra (George St) | Australia | Record daily precipitation | 30.6 mm (1.2 in) | 56 of 100 (Notable) |
| Tarcutta Post Office | Australia | Record daily precipitation | 41.4 mm (1.6 in) | 56 of 100 (Notable) |
| Hargraves (the Elders) | Australia | Record daily precipitation | 78.1 mm (3.1 in) | 55 of 100 (Notable) |
| Golspie (Ayrston) | Australia | Record daily precipitation | 29.0 mm (1.1 in) | 55 of 100 (Notable) |
| Cudal Post Office | Australia | Record daily precipitation | 31.0 mm (1.2 in) | 55 of 100 (Notable) |
| Cumnock (Willow Park) | Australia | Record daily precipitation | 36.0 mm (1.4 in) | 55 of 100 (Notable) |
| Hume Reservoir | Australia | Record daily precipitation | 27.6 mm (1.1 in) | 55 of 100 (Notable) |
| Junee Reefs (Clear Hills) | Australia | Record daily precipitation | 30.0 mm (1.2 in) | 55 of 100 (Notable) |
| Eldorado | Australia | Record daily precipitation | 30.6 mm (1.2 in) | 55 of 100 (Notable) |
| Dederang | Australia | Record daily precipitation | 57.0 mm (2.2 in) | 55 of 100 (Notable) |
| Yolla (Sea View) | Australia | Record daily precipitation | 54.8 mm (2.2 in) | 55 of 100 (Notable) |
| Wagga Wagga AMO | Australia | Record daily precipitation | 25.6 mm (1.0 in) | 54 of 100 (Notable) |
| Yackandandah | Australia | Record daily precipitation | 50.6 mm (2.0 in) | 54 of 100 (Notable) |
| Anvil Rch | United States | Record daily precipitation | 47.0 mm (1.9 in) | 54 of 100 (Notable) |
| Hill End Post Office | Australia | Record daily precipitation | 46.8 mm (1.8 in) | 53 of 100 (Notable) |
| Cobbora (Ellismayne) | Australia | Record daily precipitation | 43.0 mm (1.7 in) | 53 of 100 (Notable) |
| Pyengana (Forest Lodge Road) | Australia | Record daily precipitation | 87.6 mm (3.4 in) | 53 of 100 (Notable) |
| Gladstone (Old Post Office) | Australia | Record daily precipitation | 33.4 mm (1.3 in) | 52 of 100 (Notable) |
| Murrumburrah Old Post Office | Australia | Record daily precipitation | 49.2 mm (1.9 in) | 51 of 100 (Notable) |
| Murringo (Windermere) | Australia | Record daily precipitation | 39.0 mm (1.5 in) | 51 of 100 (Notable) |
| Henty Post Office | Australia | Record daily precipitation | 36.4 mm (1.4 in) | 51 of 100 (Notable) |
| Stromlo Forest | Australia | Record daily precipitation | 45.0 mm (1.8 in) | 50 of 100 (Notable) |
| Canberra (Australian National | Australia | Record daily precipitation | 43.0 mm (1.7 in) | 50 of 100 (Notable) |
| Murringo (Yallambee) | Australia | Record daily precipitation | 43.2 mm (1.7 in) | 50 of 100 (Notable) |
| Huejuquilla El Alto (Dge) | Mexico | Record low minimum temperature | 2.8 C (37.0 F) | 49 of 100 (Notable) |
| Running Stream (Brooklyn) | Australia | Record daily precipitation | 30.2 mm (1.2 in) | 48 of 100 (Notable) |
| Burrinjuck Dam | Australia | Record daily precipitation | 56.8 mm (2.2 in) | 48 of 100 (Notable) |
| Essen-Bredeney | Germany | Record daily precipitation | 49.1 mm (1.9 in) | 48 of 100 (Notable) |
| Ijsselsteyn (L) | Netherlands | Record daily precipitation | 41.8 mm (1.6 in) | 48 of 100 (Notable) |
| Noorbeek | Netherlands | Record daily precipitation | 55.2 mm (2.2 in) | 48 of 100 (Notable) |
| Toropec | Russia | Record daily precipitation | 46.6 mm (1.8 in) | 48 of 100 (Notable) |
| Gulgong Post Office | Australia | Record daily precipitation | 31.2 mm (1.2 in) | 47 of 100 (Notable) |
| Trunkey Creek (Trunkey (Black | Australia | Record daily precipitation | 33.0 mm (1.3 in) | 47 of 100 (Notable) |
| Dubbo (Mentone) | Australia | Record daily precipitation | 38.0 mm (1.5 in) | 47 of 100 (Notable) |
| Holbrook (Rsl) | Australia | Record daily precipitation | 27.8 mm (1.1 in) | 47 of 100 (Notable) |
| Narrandera (Top Reeds) | Australia | Record daily precipitation | 28.0 mm (1.1 in) | 47 of 100 (Notable) |
| The Rock (Miarb) | Australia | Record daily precipitation | 29.2 mm (1.1 in) | 47 of 100 (Notable) |
Counts by Type and Timescale
1,239 records| Record type | Records |
|---|---|
| Highest daily maximum | 351 |
| Lowest daily maximum | 61 |
| Highest daily minimum | 247 |
| Lowest daily minimum | 80 |
| Heaviest daily rainfall | 500 |
| Heaviest daily snowfall | 0 |
| Deepest snow cover | 0 |
| Timescale | Records |
|---|---|
| all-time | 5 |
| monthly | 40 |
| daily | 1,194 |
How Much Records Were Beaten By
956 broken records| Margin | Records |
|---|---|
| 0 to 10 | 750 |
| 10 to 20 | 153 |
| 20 to 30 | 32 |
| 30 to 40 | 14 |
| 40 to 50 | 3 |
| 50 to 60 | 0 |
| 60 to 70 | 3 |
| 70 to 80 | 1 |
Top 20 by Significance
18 August 2011| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 18 August 2011 | St Marys (Cullenswood), AU | daily rain | 124.2 mm (4.9 in) | 75.9 mm (3.0 in) | 90 years | 77 of 100 (Major) |
| 18 August 2011 | Lorinna, AU | daily rain | 91.6 mm (3.6 in) | 44.6 mm (1.8 in) | 85 years | 73 of 100 (Major) |
| 18 August 2011 | Koorawatha (Boorowa Street), AU | daily rain | 37.0 mm (1.5 in) | 23.5 mm (0.9 in) | 104 years | 72 of 100 (Major) |
| 18 August 2011 | Oatlands Post Office, AU | daily rain | 30.0 mm (1.2 in) | 19.1 mm (0.8 in) | 60 years | 68 of 100 (Major) |
| 18 August 2011 | Wantabadgery, AU | daily rain | 36.5 mm (1.4 in) | 18.7 mm (0.7 in) | 85 years | 67 of 100 (Major) |
| 18 August 2011 | Wellington (Agrowplow), AU | daily rain | 45.6 mm (1.8 in) | 19.9 mm (0.8 in) | 104 years | 66 of 100 (Major) |
| 18 August 2011 | Yalgogrin North (Roloma), AU | daily rain | 34.2 mm (1.3 in) | 18.5 mm (0.7 in) | 85 years | 65 of 100 (Major) |
| 18 August 2011 | Culcairn Bowling Club, AU | daily rain | 35.4 mm (1.4 in) | 18.9 mm (0.7 in) | 85 years | 65 of 100 (Major) |
| 18 August 2011 | Caragabal Post Office, AU | daily rain | 30.0 mm (1.2 in) | 26.2 mm (1.0 in) | 60 years | 64 of 100 (Major) |
| 18 August 2011 | Roermond, NL | daily rain | 43.2 mm (1.7 in) | 15.2 mm (0.6 in) | 135 years | 64 of 100 (Major) |
| 18 August 2011 | Colbinabbin, AU | daily rain | 26.0 mm (1.0 in) | 14.3 mm (0.6 in) | 88 years | 62 of 100 (Major) |
| 18 August 2011 | Lockhart Bowling Club, AU | daily rain | 35.0 mm (1.4 in) | 16.7 mm (0.7 in) | 85 years | 61 of 100 (Major) |
| 18 August 2011 | Junee Treatment Works, AU | daily rain | 28.4 mm (1.1 in) | 20.3 mm (0.8 in) | 40 years | 60 of 100 (Major) |
| 18 August 2011 | Wymah (Gwandallen), AU | daily rain | 42.6 mm (1.7 in) | 25.6 mm (1.0 in) | 52 years | 59 of 100 (Notable) |
| 18 August 2011 | Greenethorpe (Iandra), AU | daily rain | 36.0 mm (1.4 in) | 16.9 mm (0.7 in) | 85 years | 59 of 100 (Notable) |
| 18 August 2011 | Leckford, GB | daily rain | 54.0 mm (2.1 in) | 33.4 mm (1.3 in) | 46 years | 59 of 100 (Notable) |
| 18 August 2011 | Geurie Post Office, AU | daily rain | 44.4 mm (1.7 in) | 31.6 mm (1.2 in) | 28 years | 58 of 100 (Notable) |
| 18 August 2011 | Tarcutta (Wollumbi), AU | daily rain | 34.0 mm (1.3 in) | 23.8 mm (0.9 in) | 40 years | 58 of 100 (Notable) |
| 18 August 2011 | Quandialla Post Office, AU | daily rain | 30.0 mm (1.2 in) | 15.0 mm (0.6 in) | 85 years | 58 of 100 (Notable) |
| 18 August 2011 | Chiltern (Post Office), AU | daily rain | 32.8 mm (1.3 in) | 15.5 mm (0.6 in) | 85 years | 58 of 100 (Notable) |
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
1797 to 2011Counts for years before the ledger starts come from the same station rules.
| Year | Records |
|---|---|
| 1797 | 2 |
| 1805 | 1 |
| 1816 | 1 |
| 1827 | 1 |
| 1829 | 1 |
| 1830 | 1 |
| 1833 | 1 |
| 1841 | 1 |
| 1844 | 1 |
| 1845 | 3 |
| 1846 | 1 |
| 1847 | 1 |
| 1849 | 1 |
| 1851 | 1 |
| 1852 | 1 |
| 1853 | 1 |
| 1854 | 2 |
| 1855 | 1 |
| 1856 | 1 |
| 1861 | 1 |
| 1864 | 2 |
| 1866 | 1 |
| 1868 | 2 |
| 1869 | 1 |
| 1870 | 2 |
| 1872 | 1 |
| 1873 | 1 |
| 1875 | 3 |
| 1876 | 1 |
| 1878 | 1 |
| 1879 | 2 |
| 1883 | 3 |
| 1885 | 3 |
| 1886 | 3 |
| 1887 | 3 |
| 1888 | 2 |
| 1889 | 1 |
| 1890 | 1 |
| 1891 | 2 |
| 1892 | 6 |
| 1893 | 4 |
| 1894 | 4 |
| 1895 | 1 |
| 1898 | 4 |
| 1899 | 6 |
| 1900 | 2 |
| 1901 | 10 |
| 1902 | 8 |
| 1903 | 6 |
| 1904 | 8 |
| 1905 | 10 |
| 1906 | 40 |
| 1907 | 7 |
| 1908 | 21 |
| 1909 | 24 |
| 1910 | 16 |
| 1911 | 11 |
| 1912 | 21 |
| 1913 | 43 |
| 1914 | 37 |
| 1915 | 60 |
| 1916 | 71 |
| 1917 | 70 |
| 1918 | 53 |
| 1919 | 34 |
| 1920 | 51 |
| 1921 | 39 |
| 1922 | 129 |
| 1923 | 90 |
| 1924 | 225 |
| 1925 | 300 |
| 1926 | 168 |
| 1927 | 269 |
| 1928 | 141 |
| 1929 | 181 |
| 1930 | 150 |
| 1931 | 241 |
| 1932 | 382 |
| 1933 | 431 |
| 1934 | 638 |
| 1935 | 424 |
| 1936 | 766 |
| 1937 | 308 |
| 1938 | 243 |
| 1939 | 381 |
| 1940 | 434 |
| 1941 | 467 |
| 1942 | 333 |
| 1943 | 738 |
| 1944 | 325 |
| 1945 | 400 |
| 1946 | 416 |
| 1947 | 958 |
| 1948 | 315 |
| 1949 | 393 |
| 1950 | 683 |
| 1951 | 355 |
| 1952 | 405 |
| 1953 | 323 |
| 1954 | 622 |
| 1955 | 795 |
| 1956 | 580 |
| 1957 | 380 |
| 1958 | 580 |
| 1959 | 537 |
| 1960 | 599 |
| 1961 | 415 |
| 1962 | 428 |
| 1963 | 760 |
| 1964 | 443 |
| 1965 | 525 |
| 1966 | 573 |
| 1967 | 623 |
| 1968 | 795 |
| 1969 | 530 |
| 1970 | 597 |
| 1971 | 381 |
| 1972 | 493 |
| 1973 | 734 |
| 1974 | 639 |
| 1975 | 844 |
| 1976 | 917 |
| 1977 | 1,112 |
| 1978 | 854 |
| 1979 | 1,309 |
| 1980 | 771 |
| 1981 | 1,386 |
| 1982 | 563 |
| 1983 | 1,420 |
| 1984 | 600 |
| 1985 | 765 |
| 1986 | 861 |
| 1987 | 1,609 |
| 1988 | 1,351 |
| 1989 | 952 |
| 1990 | 920 |
| 1991 | 533 |
| 1992 | 1,497 |
| 1993 | 706 |
| 1994 | 1,027 |
| 1995 | 1,882 |
| 1996 | 760 |
| 1997 | 1,191 |
| 1998 | 923 |
| 1999 | 888 |
| 2000 | 1,183 |
| 2001 | 1,036 |
| 2002 | 1,306 |
| 2003 | 860 |
| 2004 | 1,050 |
| 2005 | 865 |
| 2006 | 842 |
| 2007 | 1,116 |
| 2008 | 1,265 |
| 2009 | 839 |
| 2010 | 1,167 |
| 2011 | 1,239 |
| 2012 | 1,247 |
| 2013 | 752 |
| 2014 | 751 |
| 2015 | 880 |
| 2016 | 704 |
| 2017 | 565 |
| 2018 | 462 |
| 2019 | 615 |
| 2020 | 1,541 |
| 2021 | 1,118 |
| 2022 | 1,237 |
| 2023 | 1,094 |
| 2024 | 696 |
| 2025 | 455 |
| 2026 | 545 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).