Weather Records on 20 August 1951

824 weather records were set or tied worldwide on 20 August 1951. Highest significance: Madalya, AU.

Key Facts for 20 August 1951

On 20 August 1951, 824 weather records were set or tied at long-record stations worldwide.
96 were record highs and 58 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 42 monthly and 779 daily.
Madalya set a monthly record daily precipitation of 113.0 mm (4.4 in) on 20 August 1951.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 452 records.

Record Map

824 stations

824 station records on 20 August 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Madalya	Australia	Record daily precipitation	113.0 mm (4.4 in)	68 of 100 (Major)
Yarram	Australia	Record daily precipitation	56.4 mm (2.2 in)	60 of 100 (Major)
Keilor (Arundel)	Australia	Record daily precipitation	30.7 mm (1.2 in)	59 of 100 (Notable)
Pomborneit	Australia	Record daily precipitation	43.2 mm (1.7 in)	59 of 100 (Notable)
Warrnambool Shire Office	Australia	Record daily precipitation	34.3 mm (1.4 in)	59 of 100 (Notable)
Dutson	Australia	Record daily precipitation	58.4 mm (2.3 in)	58 of 100 (Notable)
Kulu Halt	South Africa	Record daily precipitation	86.1 mm (3.4 in)	57 of 100 (Notable)
Balook	Australia	Record daily precipitation	76.2 mm (3.0 in)	56 of 100 (Notable)
Skukuza	South Africa	Record daily precipitation	92.0 mm (3.6 in)	56 of 100 (Notable)
Alkmaar	South Africa	Record daily precipitation	49.8 mm (2.0 in)	56 of 100 (Notable)
Mount Gambier Post Office	Australia	Record daily precipitation	45.2 mm (1.8 in)	55 of 100 (Notable)
Portsea Quarantine Station	Australia	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	55 of 100 (Notable)
Port Campbell (Waare)	Australia	Record daily precipitation	49.5 mm (1.9 in)	54 of 100 (Notable)
Kaikalur	India	Record daily precipitation	96.0 mm (3.8 in)	54 of 100 (Notable)
Schoonoord	South Africa	Record daily precipitation	31.8 mm (1.3 in)	54 of 100 (Notable)
Cape Nelson Lighthouse Compari	Australia	Record daily precipitation	38.1 mm (1.5 in)	53 of 100 (Notable)
Blackwarry	Australia	Record daily precipitation	96.5 mm (3.8 in)	52 of 100 (Notable)
Carrajung Post Office	Australia	Record daily precipitation	101.6 mm (4.0 in)	52 of 100 (Notable)
Stradbroke West (Inglenook)	Australia	Record daily precipitation	62.2 mm (2.4 in)	52 of 100 (Notable)
Giffard	Australia	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Paynesville	Australia	Record daily precipitation	40.6 mm (1.6 in)	50 of 100 (Notable)
Gemsbokfontein	South Africa	Record daily precipitation	26.6 mm (1.0 in)	50 of 100 (Notable)
Badplaas (Pol)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	50 of 100 (Notable)
Eden (Caravan Park)	Australia	Record daily precipitation	78.5 mm (3.1 in)	49 of 100 (Notable)
Portland	Australia	Record daily precipitation	50.8 mm (2.0 in)	49 of 100 (Notable)
Lydenburg	South Africa	Record daily precipitation	31.8 mm (1.3 in)	49 of 100 (Notable)
Omeo Valley	Australia	Record daily precipitation	34.3 mm (1.4 in)	48 of 100 (Notable)
Princetown	Australia	Record daily precipitation	47.0 mm (1.9 in)	48 of 100 (Notable)
Durban-Botanical Gardens	South Africa	Record daily precipitation	48.3 mm (1.9 in)	48 of 100 (Notable)
Mahlabatini (Mag)	South Africa	Record daily precipitation	40.6 mm (1.6 in)	48 of 100 (Notable)
Pulletop (Matta Mia)	Australia	Record daily precipitation	33.3 mm (1.3 in)	47 of 100 (Notable)
Streatham	Australia	Record daily precipitation	40.1 mm (1.6 in)	47 of 100 (Notable)
Peterborough	Australia	Record daily precipitation	42.9 mm (1.7 in)	47 of 100 (Notable)
Tirrengower	Australia	Record daily precipitation	53.8 mm (2.1 in)	47 of 100 (Notable)
Plymouth-Kingston	United States	Record daily precipitation	58.2 mm (2.3 in)	46 of 100 (Notable)
Balliang East (Chesney)	Australia	Record daily precipitation	28.4 mm (1.1 in)	45 of 100 (Notable)
Derrinallum (Craigmore)	Australia	Record daily precipitation	31.5 mm (1.2 in)	45 of 100 (Notable)
Hawkesdale (Post Office)	Australia	Record daily precipitation	39.1 mm (1.5 in)	45 of 100 (Notable)
Hawkestone, Howick	South Africa	Record daily precipitation	44.7 mm (1.8 in)	45 of 100 (Notable)
Rietvallei	South Africa	Record daily precipitation	59.2 mm (2.3 in)	45 of 100 (Notable)
Ephrata	United States	Record daily precipitation	62.2 mm (2.4 in)	45 of 100 (Notable)
Junction 4SSW	United States	Record daily precipitation	75.2 mm (3.0 in)	45 of 100 (Notable)
Wee Waa (George St)	Australia	Record daily precipitation	32.3 mm (1.3 in)	44 of 100 (Notable)
Paynesville (Banksia)	Australia	Record daily precipitation	26.4 mm (1.0 in)	44 of 100 (Notable)
Lavers Hill	Australia	Record daily precipitation	65.0 mm (2.6 in)	44 of 100 (Notable)
Barraba Post Office	Australia	Record daily precipitation	27.2 mm (1.1 in)	43 of 100 (Notable)
Werribee Research Farm	Australia	Record daily precipitation	28.2 mm (1.1 in)	43 of 100 (Notable)
Lismore (Post Office)	Australia	Record daily precipitation	29.7 mm (1.2 in)	43 of 100 (Notable)
Mandurama (Gallymont (Homeleig	Australia	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Mount Best (Upper Toora)	Australia	Record daily precipitation	56.1 mm (2.2 in)	42 of 100 (Notable)
Austin Montopolis Brg	United States	Record daily precipitation	48.3 mm (1.9 in)	42 of 100 (Notable)
Mbabane	Swaziland	Record daily precipitation	44.5 mm (1.8 in)	42 of 100 (Notable)
Narrabri Bowling Club	Australia	Record daily precipitation	26.7 mm (1.1 in)	41 of 100 (Notable)
Mickleham	Australia	Record daily precipitation	43.2 mm (1.7 in)	41 of 100 (Notable)
Melton	Australia	Record daily precipitation	30.7 mm (1.2 in)	41 of 100 (Notable)
Nullawarre	Australia	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Bergplaats	South Africa	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Dullstroom (Sar)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Lynch	United States	Record daily precipitation	42.4 mm (1.7 in)	41 of 100 (Notable)

Counts by Type and Timescale

824 records

Records set or tied on 20 August 1951 by type: Highest daily maximum 53, Lowest daily maximum 44, Highest daily minimum 43, Lowest daily minimum 14, Heaviest daily rainfall 670.

Records on 20 August 1951 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	44
Highest daily minimum	43
Lowest daily minimum	14
Heaviest daily rainfall	670
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1951 by timescale: all-time 3, monthly 42, daily 779.

How Much Records Were Beaten By

753 broken records

Margins by which the 753 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.0. Ties are not counted.

Top 20 by Significance

20 August 1951

Top 20 records on 20 August 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1951	Madalya, AU	monthly rain	113.0 mm (4.4 in)	45.9 mm (1.8 in)	44 years	68 of 100 (Major)
20 August 1951	Yarram, AU	daily rain	56.4 mm (2.2 in)	40.4 mm (1.6 in)	48 years	60 of 100 (Major)
20 August 1951	Keilor (Arundel), AU	daily rain	30.7 mm (1.2 in)	25.6 mm (1.0 in)	44 years	59 of 100 (Notable)
20 August 1951	Pomborneit, AU	monthly rain	43.2 mm (1.7 in)	18.6 mm (0.7 in)	33 years	59 of 100 (Notable)
20 August 1951	Warrnambool Shire Office, AU	daily rain	34.3 mm (1.4 in)	18.8 mm (0.7 in)	41 years	59 of 100 (Notable)
20 August 1951	Dutson, AU	daily rain	58.4 mm (2.3 in)	48.2 mm (1.9 in)	44 years	58 of 100 (Notable)
20 August 1951	Kulu Halt, ZA	monthly rain	86.1 mm (3.4 in)	40.1 mm (1.6 in)	16 years	57 of 100 (Notable)
20 August 1951	Balook, AU	daily rain	76.2 mm (3.0 in)	40.6 mm (1.6 in)	40 years	56 of 100 (Notable)
20 August 1951	Skukuza, ZA	monthly rain	92.0 mm (3.6 in)	73.0 mm (2.9 in)	7 years	56 of 100 (Notable)
20 August 1951	Alkmaar, ZA	monthly rain	49.8 mm (2.0 in)	27.2 mm (1.1 in)	7 years	56 of 100 (Notable)
20 August 1951	Mount Gambier Post Office, AU	monthly rain	45.2 mm (1.8 in)	6.3 mm (0.25 in)	85 years	55 of 100 (Notable)
20 August 1951	Portsea Quarantine Station, AU	daily rain	34.0 mm (1.3 in)	23.8 mm (0.9 in)	37 years	55 of 100 (Notable)
20 August 1951	Pilgrims Rest (Pol), ZA	daily rain	30.5 mm (1.2 in)	28.7 mm (1.1 in)	38 years	55 of 100 (Notable)
20 August 1951	Port Campbell (Waare), AU	monthly rain	49.5 mm (1.9 in)	18.3 mm (0.7 in)	18 years	54 of 100 (Notable)
20 August 1951	Kaikalur, IN	daily rain	96.0 mm (3.8 in)	65.5 mm (2.6 in)	34 years	54 of 100 (Notable)
20 August 1951	Schoonoord, ZA	daily rain	31.8 mm (1.3 in)	31.0 mm (1.2 in)	45 years	54 of 100 (Notable)
20 August 1951	Cape Nelson Lighthouse Compari, AU	daily rain	38.1 mm (1.5 in)	19.6 mm (0.8 in)	30 years	53 of 100 (Notable)
20 August 1951	Blackwarry, AU	daily rain	96.5 mm (3.8 in)	66.5 mm (2.6 in)	22 years	52 of 100 (Notable)
20 August 1951	Carrajung Post Office, AU	daily rain	101.6 mm (4.0 in)	78.0 mm (3.1 in)	22 years	52 of 100 (Notable)
20 August 1951	Stradbroke West (Inglenook), AU	daily rain	62.2 mm (2.4 in)	52.5 mm (2.1 in)	20 years	52 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 1951

Records set or tied on this calendar date in each year from 1797 to 1951. 1951 had 824 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 1951-08-20: 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	520
10 to 20	132
20 to 30	62
30 to 40	16
40 to 50	13
50 to 60	5
60 to 70	3
70 to 80	2