Weather Records on 20 August 1930

318 weather records were set or tied worldwide on 20 August 1930. Highest significance: Keilands, ZA.

Key Facts for 20 August 1930

On 20 August 1930, 318 weather records were set or tied at long-record stations worldwide.
67 were record highs and 77 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 9 monthly and 308 daily.
Keilands set a daily record precipitation of 33.0 mm (1.3 in) on 20 August 1930.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 456 records.

Record Map

318 stations

318 station records on 20 August 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Keilands	South Africa	Record daily precipitation	33.0 mm (1.3 in)	55 of 100 (Notable)
Queenstown	South Africa	Record daily precipitation	35.6 mm (1.4 in)	53 of 100 (Notable)
Fort Cunynghame (Bos)	South Africa	Record daily precipitation	31.8 mm (1.3 in)	52 of 100 (Notable)
Crawley	South Africa	Record daily precipitation	28.2 mm (1.1 in)	49 of 100 (Notable)
Yardley Chase	South Africa	Record daily precipitation	29.0 mm (1.1 in)	48 of 100 (Notable)
Steynsburg	South Africa	Record daily precipitation	30.5 mm (1.2 in)	48 of 100 (Notable)
Jamestown	South Africa	Record daily precipitation	51.6 mm (2.0 in)	48 of 100 (Notable)
Tsomo (Pol)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	47 of 100 (Notable)
Dohne (Sar)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Qacu (Bos)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	46 of 100 (Notable)
Contest	South Africa	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Kologha (Bos)	South Africa	Record daily precipitation	33.8 mm (1.3 in)	45 of 100 (Notable)
Elliotdale (Tnk)	South Africa	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Hillmoor	South Africa	Record daily precipitation	33.8 mm (1.3 in)	45 of 100 (Notable)
Waverley	South Africa	Record daily precipitation	26.9 mm (1.1 in)	41 of 100 (Notable)
Exwell Park	South Africa	Record daily precipitation	30.7 mm (1.2 in)	40 of 100 (Notable)
Nqamakwe (Tnk)	South Africa	Record daily precipitation	36.8 mm (1.4 in)	39 of 100 (Notable)
Butterworth (Tnk)	South Africa	Record daily precipitation	29.2 mm (1.1 in)	37 of 100 (Notable)
Minneapolis	United States	Record daily precipitation	66.5 mm (2.6 in)	37 of 100 (Notable)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	55.4 mm (2.2 in)	36 of 100 (Notable)
Canon City	United States	Record high minimum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Sorve	Estonia	Record daily precipitation	25.2 mm (1.0 in)	35 of 100 (Notable)
Lady Frere (Tnk)	South Africa	Record daily precipitation	33.3 mm (1.3 in)	35 of 100 (Notable)
Cofimvaba (Tnk)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Ellesmere	South Africa	Record daily precipitation	28.7 mm (1.1 in)	34 of 100 (Routine)
Komga (Pol)	South Africa	Record daily precipitation	28.2 mm (1.1 in)	33 of 100 (Routine)
Hallett (Lorraine)	Australia	Record daily precipitation	27.7 mm (1.1 in)	32 of 100 (Routine)
Cata (Bos)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	32 of 100 (Routine)
Dontsa	South Africa	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Peddie (Mag)	South Africa	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Pirie (Bos)	South Africa	Record daily precipitation	27.4 mm (1.1 in)	31 of 100 (Routine)
Woomera (South Gap Station)	Australia	Record daily precipitation	27.2 mm (1.1 in)	30 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record high minimum temperature	14.8 C (58.6 F)	30 of 100 (Routine)
Kentani (Bos)	South Africa	Record daily precipitation	32.5 mm (1.3 in)	30 of 100 (Routine)
Willowvale (Tnk)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Spalding (Bundaleer Reservoir)	Australia	Record daily precipitation	28.4 mm (1.1 in)	28 of 100 (Routine)
Molteno (Mun)	South Africa	Record daily precipitation	48.0 mm (1.9 in)	27 of 100 (Routine)
Venterstad	South Africa	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Engcobo (Tnk)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	26 of 100 (Routine)
Buffelsfontein 14	South Africa	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Salina	United States	Record daily precipitation	54.1 mm (2.1 in)	26 of 100 (Routine)
Millaquin Sugar	Australia	Record daily precipitation	45.0 mm (1.8 in)	24 of 100 (Routine)
Mildura Post Office	Australia	Record low maximum temperature	11.1 C (52.0 F)	24 of 100 (Routine)
Bainbridge	United States	Record daily precipitation	39.9 mm (1.6 in)	24 of 100 (Routine)
Hays 1 S	United States	Record daily precipitation	32.0 mm (1.3 in)	23 of 100 (Routine)
Duck Hill	United States	Record low maximum temperature	26.1 C (79.0 F)	23 of 100 (Routine)
St. Petersburg	Russia	Record high minimum temperature	19.3 C (66.7 F)	22 of 100 (Routine)
Bundaberg Post Office	Australia	Record daily precipitation	44.2 mm (1.7 in)	21 of 100 (Routine)
Petrusville (Pol)	South Africa	Record daily precipitation	36.1 mm (1.4 in)	21 of 100 (Routine)
Roswell Muni AP	United States	Record high minimum temperature	20.6 C (69.1 F)	21 of 100 (Routine)
Colesberg (Tnk)	South Africa	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Rocklands	South Africa	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Tarkastad (Pol)	South Africa	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Manor Holme	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Port Pirie (Valencia)	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Chowilla	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Jacobsdal (Pol)	South Africa	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Cathcart	South Africa	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Noupoort	South Africa	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

318 records

Records set or tied on 20 August 1930 by type: Highest daily maximum 23, Lowest daily maximum 51, Highest daily minimum 44, Lowest daily minimum 26, Heaviest daily rainfall 174.

Records on 20 August 1930 by type
Record type	Records
Highest daily maximum	23
Lowest daily maximum	51
Highest daily minimum	44
Lowest daily minimum	26
Heaviest daily rainfall	174
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1930 by timescale: all-time 1, monthly 9, daily 308.

How Much Records Were Beaten By

272 broken records

Margins by which the 272 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 47.3. Ties are not counted.

Top 20 by Significance

20 August 1930

Top 20 records on 20 August 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1930	Keilands, ZA	daily rain	33.0 mm (1.3 in)	30.5 mm (1.2 in)	38 years	55 of 100 (Notable)
20 August 1930	Queenstown, ZA	daily rain	35.6 mm (1.4 in)	30.5 mm (1.2 in)	42 years	53 of 100 (Notable)
20 August 1930	Fort Cunynghame (Bos), ZA	daily rain	31.8 mm (1.3 in)	28.2 mm (1.1 in)	30 years	52 of 100 (Notable)
20 August 1930	Crawley, ZA	daily rain	28.2 mm (1.1 in)	25.2 mm (1.0 in)	30 years	49 of 100 (Notable)
20 August 1930	Yardley Chase, ZA	daily rain	29.0 mm (1.1 in)	22.1 mm (0.9 in)	12 years	48 of 100 (Notable)
20 August 1930	Steynsburg, ZA	daily rain	30.5 mm (1.2 in)	26.7 mm (1.1 in)	12 years	48 of 100 (Notable)
20 August 1930	Jamestown, ZA	daily rain	51.6 mm (2.0 in)	47.3 mm (1.9 in)	12 years	48 of 100 (Notable)
20 August 1930	Tsomo (Pol), ZA	daily rain	33.5 mm (1.3 in)	27.1 mm (1.1 in)	24 years	47 of 100 (Notable)
20 August 1930	Dohne (Sar), ZA	daily rain	34.5 mm (1.4 in)	29.4 mm (1.2 in)	42 years	46 of 100 (Notable)
20 August 1930	Qacu (Bos), ZA	daily rain	33.0 mm (1.3 in)	29.4 mm (1.2 in)	12 years	46 of 100 (Notable)
20 August 1930	Contest, ZA	daily rain	33.5 mm (1.3 in)	24.9 mm (1.0 in)	12 years	46 of 100 (Notable)
20 August 1930	Kologha (Bos), ZA	daily rain	33.8 mm (1.3 in)	22.1 mm (0.9 in)	42 years	45 of 100 (Notable)
20 August 1930	Elliotdale (Tnk), ZA	daily rain	38.1 mm (1.5 in)	32.0 mm (1.3 in)	12 years	45 of 100 (Notable)
20 August 1930	Hillmoor, ZA	monthly rain	33.8 mm (1.3 in)	13.5 mm (0.5 in)	29 years	45 of 100 (Notable)
20 August 1930	Waverley, ZA	daily rain	26.9 mm (1.1 in)	21.3 mm (0.8 in)	7 years	41 of 100 (Notable)
20 August 1930	Exwell Park, ZA	monthly rain	30.7 mm (1.2 in)	9.4 mm (0.37 in)	20 years	40 of 100 (Notable)
20 August 1930	Nqamakwe (Tnk), ZA	daily rain	36.8 mm (1.4 in)	29.9 mm (1.2 in)	12 years	39 of 100 (Notable)
20 August 1930	Butterworth (Tnk), ZA	daily rain	29.2 mm (1.1 in)	22.8 mm (0.9 in)	12 years	37 of 100 (Notable)
20 August 1930	Minneapolis, US	daily rain	66.5 mm (2.6 in)	36.8 mm (1.4 in)	28 years	37 of 100 (Notable)
20 August 1930	Dordrecht - Tnk 14, ZA	monthly rain	55.4 mm (2.2 in)	10.9 mm (0.4 in)	20 years	36 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 1930

Records set or tied on this calendar date in each year from 1797 to 1930. 1930 had 318 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 1930-08-20: 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).

Histogram of margins by which records were beaten on 20 August 1930
Margin	Records
0 to 10	209
10 to 20	38
20 to 30	19
30 to 40	5
40 to 50	1