Weather Records on 21 August 1951

699 weather records were set or tied worldwide on 21 August 1951. Highest significance: Durdidwarrah, AU.

Key Facts for 21 August 1951

On 21 August 1951, 699 weather records were set or tied at long-record stations worldwide.
129 were record highs and 150 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 23 monthly and 675 daily.
Durdidwarrah set a monthly record daily precipitation of 61.0 mm (2.4 in) on 21 August 1951.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 448 records.

Record Map

699 stations

699 station records on 21 August 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Durdidwarrah	Australia	Record daily precipitation	61.0 mm (2.4 in)	69 of 100 (Major)
Gabo Island Lighthouse	Australia	Record daily precipitation	64.8 mm (2.6 in)	63 of 100 (Major)
Maffra Shire Hall	Australia	Record daily precipitation	52.8 mm (2.1 in)	63 of 100 (Major)
Lakes Entrance Post Office	Australia	Record daily precipitation	64.0 mm (2.5 in)	62 of 100 (Major)
Geelong Sec	Australia	Record daily precipitation	26.9 mm (1.1 in)	61 of 100 (Major)
Orbost (Comparison)	Australia	Record daily precipitation	56.6 mm (2.2 in)	60 of 100 (Major)
Bairnsdale Post Office	Australia	Record daily precipitation	46.2 mm (1.8 in)	60 of 100 (Major)
Beenak	Australia	Record daily precipitation	59.4 mm (2.3 in)	60 of 100 (Major)
Bairnsdale 1	Australia	Record daily precipitation	46.2 mm (1.8 in)	59 of 100 (Notable)
Clydebank	Australia	Record daily precipitation	61.2 mm (2.4 in)	59 of 100 (Notable)
Blackwarry	Australia	Record daily precipitation	82.0 mm (3.2 in)	58 of 100 (Notable)
Rosedale	Australia	Record daily precipitation	37.6 mm (1.5 in)	58 of 100 (Notable)
Yarram	Australia	Record daily precipitation	47.0 mm (1.9 in)	58 of 100 (Notable)
Weeaproinah	Australia	Record daily precipitation	78.5 mm (3.1 in)	58 of 100 (Notable)
Bruthen (Post Office)	Australia	Record daily precipitation	48.8 mm (1.9 in)	57 of 100 (Notable)
Alberton Post Office	Australia	Record daily precipitation	38.6 mm (1.5 in)	57 of 100 (Notable)
Jindivick	Australia	Record daily precipitation	48.3 mm (1.9 in)	57 of 100 (Notable)
Madalya	Australia	Record daily precipitation	72.4 mm (2.9 in)	57 of 100 (Notable)
Gembrook	Australia	Record daily precipitation	39.9 mm (1.6 in)	57 of 100 (Notable)
Omeo Comparison	Australia	Record daily precipitation	30.0 mm (1.2 in)	56 of 100 (Notable)
Budgeree East (Claremont)	Australia	Record daily precipitation	71.1 mm (2.8 in)	56 of 100 (Notable)
Fernbank	Australia	Record daily precipitation	59.7 mm (2.4 in)	56 of 100 (Notable)
Giffard	Australia	Record daily precipitation	35.3 mm (1.4 in)	56 of 100 (Notable)
Narre Warren North (Narre Warr	Australia	Record daily precipitation	35.1 mm (1.4 in)	56 of 100 (Notable)
Meredith (Darra)	Australia	Record daily precipitation	54.6 mm (2.1 in)	56 of 100 (Notable)
Carrajung Post Office	Australia	Record daily precipitation	64.3 mm (2.5 in)	55 of 100 (Notable)
Macedon Forestry	Australia	Record daily precipitation	41.7 mm (1.6 in)	55 of 100 (Notable)
Dargo	Australia	Record daily precipitation	60.2 mm (2.4 in)	52 of 100 (Notable)
Brodribb River	Australia	Record daily precipitation	47.2 mm (1.9 in)	52 of 100 (Notable)
Stratford	Australia	Record daily precipitation	49.8 mm (2.0 in)	52 of 100 (Notable)
Welshpool	Australia	Record daily precipitation	48.5 mm (1.9 in)	52 of 100 (Notable)
Dutson	Australia	Record daily precipitation	66.0 mm (2.6 in)	51 of 100 (Notable)
Lindenow	Australia	Record daily precipitation	44.2 mm (1.7 in)	51 of 100 (Notable)
Moormurang the Ridge	Australia	Record daily precipitation	41.1 mm (1.6 in)	51 of 100 (Notable)
Bacchus Marsh	Australia	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Little River (Mount Rothwell)	Australia	Record daily precipitation	32.8 mm (1.3 in)	51 of 100 (Notable)
Barrage A Lac Kempt	Canada	Record daily precipitation	44.5 mm (1.8 in)	51 of 100 (Notable)
Dadupur	India	Record daily precipitation	198.1 mm (7.8 in)	51 of 100 (Notable)
Nicholson (Yendalock)	Australia	Record daily precipitation	61.5 mm (2.4 in)	50 of 100 (Notable)
Nowa Nowa (Wairewa)	Australia	Record daily precipitation	63.5 mm (2.5 in)	50 of 100 (Notable)
Sarsfield	Australia	Record daily precipitation	64.3 mm (2.5 in)	50 of 100 (Notable)
Paynesville (Banksia)	Australia	Record daily precipitation	40.9 mm (1.6 in)	50 of 100 (Notable)
Meredith	Australia	Record daily precipitation	46.5 mm (1.8 in)	50 of 100 (Notable)
Myrniong	Australia	Record daily precipitation	45.7 mm (1.8 in)	50 of 100 (Notable)
Vishakhapatnam	India	Record daily precipitation	77.5 mm (3.1 in)	50 of 100 (Notable)
Skukuza	South Africa	Record daily precipitation	39.0 mm (1.5 in)	50 of 100 (Notable)
Pennyroyal Creek	Australia	Record daily precipitation	64.5 mm (2.5 in)	49 of 100 (Notable)
Winchelsea (Post Office)	Australia	Record daily precipitation	44.5 mm (1.8 in)	49 of 100 (Notable)
Balliang East (Chesney)	Australia	Record daily precipitation	29.2 mm (1.1 in)	48 of 100 (Notable)
Balliang East	Australia	Record daily precipitation	26.9 mm (1.1 in)	48 of 100 (Notable)
Lavers Hill	Australia	Record daily precipitation	58.2 mm (2.3 in)	48 of 100 (Notable)
Union	United States	Record daily precipitation	98.0 mm (3.9 in)	48 of 100 (Notable)
Manouan Sanmaur	Canada	Record daily precipitation	44.7 mm (1.8 in)	47 of 100 (Notable)
Buchan (Gillingall)	Australia	Record daily precipitation	43.7 mm (1.7 in)	46 of 100 (Notable)
Paynesville	Australia	Record daily precipitation	35.6 mm (1.4 in)	46 of 100 (Notable)
Stradbroke West (Inglenook)	Australia	Record daily precipitation	71.4 mm (2.8 in)	46 of 100 (Notable)
Tadoussac	Canada	Record daily precipitation	40.6 mm (1.6 in)	46 of 100 (Notable)
Genoa	Australia	Record daily precipitation	75.7 mm (3.0 in)	45 of 100 (Notable)
Murrungowar	Australia	Record daily precipitation	68.6 mm (2.7 in)	45 of 100 (Notable)
Balook	Australia	Record daily precipitation	106.2 mm (4.2 in)	44 of 100 (Notable)

Counts by Type and Timescale

699 records

Records set or tied on 21 August 1951 by type: Highest daily maximum 82, Lowest daily maximum 116, Highest daily minimum 47, Lowest daily minimum 34, Heaviest daily rainfall 420.

Records on 21 August 1951 by type
Record type	Records
Highest daily maximum	82
Lowest daily maximum	116
Highest daily minimum	47
Lowest daily minimum	34
Heaviest daily rainfall	420
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1951 by timescale: all-time 1, monthly 23, daily 675.

How Much Records Were Beaten By

585 broken records

Margins by which the 585 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 170.2. Ties are not counted.

Top 20 by Significance

21 August 1951

Top 20 records on 21 August 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1951	Durdidwarrah, AU	monthly rain	61.0 mm (2.4 in)	15.8 mm (0.6 in)	44 years	69 of 100 (Major)
21 August 1951	Gabo Island Lighthouse, AU	daily rain	64.8 mm (2.6 in)	51.1 mm (2.0 in)	51 years	63 of 100 (Major)
21 August 1951	Maffra Shire Hall, AU	daily rain	52.8 mm (2.1 in)	40.4 mm (1.6 in)	55 years	63 of 100 (Major)
21 August 1951	Lakes Entrance Post Office, AU	daily rain	64.0 mm (2.5 in)	50.0 mm (2.0 in)	51 years	62 of 100 (Major)
21 August 1951	Geelong Sec, AU	daily rain	26.9 mm (1.1 in)	12.9 mm (0.5 in)	70 years	61 of 100 (Major)
21 August 1951	Orbost (Comparison), AU	daily rain	56.6 mm (2.2 in)	38.8 mm (1.5 in)	55 years	60 of 100 (Major)
21 August 1951	Bairnsdale Post Office, AU	daily rain	46.2 mm (1.8 in)	34.5 mm (1.4 in)	51 years	60 of 100 (Major)
21 August 1951	Beenak, AU	daily rain	59.4 mm (2.3 in)	40.3 mm (1.6 in)	44 years	60 of 100 (Major)
21 August 1951	Bairnsdale 1, AU	daily rain	46.2 mm (1.8 in)	23.3 mm (0.9 in)	70 years	59 of 100 (Notable)
21 August 1951	Clydebank, AU	daily rain	61.2 mm (2.4 in)	53.1 mm (2.1 in)	44 years	59 of 100 (Notable)
21 August 1951	Blackwarry, AU	daily rain	82.0 mm (3.2 in)	58.1 mm (2.3 in)	40 years	58 of 100 (Notable)
21 August 1951	Rosedale, AU	daily rain	37.6 mm (1.5 in)	22.9 mm (0.9 in)	40 years	58 of 100 (Notable)
21 August 1951	Yarram, AU	daily rain	47.0 mm (1.9 in)	28.7 mm (1.1 in)	40 years	58 of 100 (Notable)
21 August 1951	Weeaproinah, AU	daily rain	78.5 mm (3.1 in)	46.5 mm (1.8 in)	45 years	58 of 100 (Notable)
21 August 1951	Bruthen (Post Office), AU	daily rain	48.8 mm (1.9 in)	29.7 mm (1.2 in)	64 years	57 of 100 (Notable)
21 August 1951	Alberton Post Office, AU	daily rain	38.6 mm (1.5 in)	21.8 mm (0.9 in)	40 years	57 of 100 (Notable)
21 August 1951	Jindivick, AU	daily rain	48.3 mm (1.9 in)	31.0 mm (1.2 in)	40 years	57 of 100 (Notable)
21 August 1951	Madalya, AU	daily rain	72.4 mm (2.9 in)	46.2 mm (1.8 in)	41 years	57 of 100 (Notable)
21 August 1951	Gembrook, AU	daily rain	39.9 mm (1.6 in)	26.2 mm (1.0 in)	40 years	57 of 100 (Notable)
21 August 1951	Omeo Comparison, AU	daily rain	30.0 mm (1.2 in)	17.8 mm (0.7 in)	55 years	56 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

1800 to 1951

Records set or tied on this calendar date in each year from 1800 to 1951. 1951 had 699 records.

Counts for years before the ledger starts come from the same station rules.

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 1951-08-21: CSV or JSON. Field meanings are on the data page.

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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 25	506
25 to 50	59
50 to 75	17
75 to 100	2
100 to 125	0
125 to 150	0
150 to 175	1