Weather Records on 30 May 1921

392 weather records were set or tied worldwide on 30 May 1921. Highest significance: Tenterden, AU.

Key Facts for 30 May 1921

On 30 May 1921, 392 weather records were set or tied at long-record stations worldwide.
26 were record highs and 5 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 378 daily.
Tenterden set a monthly record daily precipitation of 109.7 mm (4.3 in) on 30 May 1921.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 439 records.

Record Map

392 stations

392 station records on 30 May 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tenterden	Australia	Record daily precipitation	109.7 mm (4.3 in)	60 of 100 (Major)
Sedan	Australia	Record daily precipitation	35.6 mm (1.4 in)	52 of 100 (Notable)
Currawinya	Australia	Record daily precipitation	43.9 mm (1.7 in)	51 of 100 (Notable)
Inverell Comparison	Australia	Record daily precipitation	38.6 mm (1.5 in)	51 of 100 (Notable)
Hoyleton	Australia	Record daily precipitation	35.6 mm (1.4 in)	48 of 100 (Notable)
Cooke Plains	Australia	Record daily precipitation	28.7 mm (1.1 in)	48 of 100 (Notable)
Boomanoomana	Australia	Record daily precipitation	50.8 mm (2.0 in)	48 of 100 (Notable)
Zagreb-Gric	Croatia	Record daily precipitation	67.5 mm (2.7 in)	48 of 100 (Notable)
Coromandel Valley (Branden)	Australia	Record daily precipitation	55.6 mm (2.2 in)	47 of 100 (Notable)
Echunga Golf Course	Australia	Record daily precipitation	41.9 mm (1.6 in)	47 of 100 (Notable)
Windorah Post Office	Australia	Record daily precipitation	85.9 mm (3.4 in)	47 of 100 (Notable)
Tenterfield (Federation Park)	Australia	Record daily precipitation	44.5 mm (1.8 in)	47 of 100 (Notable)
Hillgrove (Hillview)	Australia	Record daily precipitation	47.8 mm (1.9 in)	46 of 100 (Notable)
Crowlands (Woodlands)	Australia	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Carrieton (Pamatta)	Australia	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Cape Jervis Lighthouse	Australia	Record daily precipitation	26.4 mm (1.0 in)	44 of 100 (Notable)
Port Pirie Nyrstar Comparison	Australia	Record daily precipitation	43.7 mm (1.7 in)	43 of 100 (Notable)
Koolunga	Australia	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Belair (State Flora Nursery)	Australia	Record daily precipitation	36.1 mm (1.4 in)	41 of 100 (Notable)
Wallangarra Post Office	Australia	Record daily precipitation	54.1 mm (2.1 in)	40 of 100 (Notable)
Cunnamulla Post Office	Australia	Record daily precipitation	31.8 mm (1.3 in)	40 of 100 (Notable)
Stonehenge	Australia	Record daily precipitation	54.6 mm (2.1 in)	40 of 100 (Notable)
Balmoral (Post Office)	Australia	Record daily precipitation	30.2 mm (1.2 in)	40 of 100 (Notable)
Waukaringa	Australia	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Uraidla	Australia	Record daily precipitation	47.5 mm (1.9 in)	39 of 100 (Notable)
Truro	Australia	Record daily precipitation	28.7 mm (1.1 in)	39 of 100 (Notable)
Bingara (Keera)	Australia	Record daily precipitation	43.2 mm (1.7 in)	39 of 100 (Notable)
Adelong Post Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	39 of 100 (Notable)
Nhill (Woorak)	Australia	Record daily precipitation	33.3 mm (1.3 in)	39 of 100 (Notable)
Guyra Post Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	38 of 100 (Notable)
Jung Jung	Australia	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Harrow (Pine Hills)	Australia	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Angaston	Australia	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Collingrove	Australia	Record daily precipitation	37.6 mm (1.5 in)	37 of 100 (Notable)
Marrabel	Australia	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Gumeracha	Australia	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Longerenong	Australia	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Virginia Sheedy Road	Australia	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
Birdwood	Australia	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Wangamana	Australia	Record daily precipitation	45.0 mm (1.8 in)	34 of 100 (Routine)
Laen	Australia	Record daily precipitation	27.4 mm (1.1 in)	34 of 100 (Routine)
Runnymede	Australia	Record daily precipitation	26.7 mm (1.1 in)	34 of 100 (Routine)
Hawker (Wilson)	Australia	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Williamstown	Australia	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Gunnee	Australia	Record daily precipitation	63.5 mm (2.5 in)	33 of 100 (Routine)
Lorquon	Australia	Record daily precipitation	31.0 mm (1.2 in)	33 of 100 (Routine)
Warracknabeal Post Office	Australia	Record daily precipitation	27.4 mm (1.1 in)	33 of 100 (Routine)
Echuca Aerodrome	Australia	Record daily precipitation	29.7 mm (1.2 in)	33 of 100 (Routine)
Adelaide (Glen Osmond)	Australia	Record daily precipitation	36.1 mm (1.4 in)	32 of 100 (Routine)
Two Wells	Australia	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Hahndorf	Australia	Record daily precipitation	30.7 mm (1.2 in)	31 of 100 (Routine)
Adelaide (Tea Tree Gully Counc	Australia	Record daily precipitation	31.8 mm (1.3 in)	31 of 100 (Routine)
Millie	Australia	Record daily precipitation	26.7 mm (1.1 in)	31 of 100 (Routine)
Saddleworth	Australia	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Bridgewater	Australia	Record daily precipitation	45.0 mm (1.8 in)	30 of 100 (Routine)
Woolerina	Australia	Record daily precipitation	35.1 mm (1.4 in)	30 of 100 (Routine)
Ararat Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	30 of 100 (Routine)
Murtoa	Australia	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)
Wallaloo	Australia	Record daily precipitation	27.4 mm (1.1 in)	29 of 100 (Routine)

Counts by Type and Timescale

392 records

Records set or tied on 30 May 1921 by type: Highest daily maximum 7, Lowest daily maximum 4, Highest daily minimum 19, Lowest daily minimum 1, Heaviest daily rainfall 361.

Records on 30 May 1921 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	4
Highest daily minimum	19
Lowest daily minimum	1
Heaviest daily rainfall	361
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 May 1921 by timescale: all-time 0, monthly 14, daily 378.

How Much Records Were Beaten By

378 broken records

Margins by which the 378 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 56.4. Ties are not counted.

Top 20 by Significance

30 May 1921

Top 20 records on 30 May 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1921	Tenterden, AU	monthly rain	109.7 mm (4.3 in)	56.4 mm (2.2 in)	21 years	60 of 100 (Major)
30 May 1921	Sedan, AU	daily rain	35.6 mm (1.4 in)	32.3 mm (1.3 in)	27 years	52 of 100 (Notable)
30 May 1921	Currawinya, AU	daily rain	43.9 mm (1.7 in)	36.3 mm (1.4 in)	38 years	51 of 100 (Notable)
30 May 1921	Inverell Comparison, AU	daily rain	38.6 mm (1.5 in)	33.5 mm (1.3 in)	40 years	51 of 100 (Notable)
30 May 1921	Hoyleton, AU	daily rain	35.6 mm (1.4 in)	25.2 mm (1.0 in)	16 years	48 of 100 (Notable)
30 May 1921	Cooke Plains, AU	daily rain	28.7 mm (1.1 in)	21.6 mm (0.9 in)	16 years	48 of 100 (Notable)
30 May 1921	Boomanoomana, AU	daily rain	50.8 mm (2.0 in)	32.3 mm (1.3 in)	38 years	48 of 100 (Notable)
30 May 1921	Zagreb-Gric, HR	monthly rain	67.5 mm (2.7 in)	16.4 mm (0.6 in)	38 years	48 of 100 (Notable)
30 May 1921	Coromandel Valley (Branden), AU	daily rain	55.6 mm (2.2 in)	44.9 mm (1.8 in)	15 years	47 of 100 (Notable)
30 May 1921	Echunga Golf Course, AU	daily rain	41.9 mm (1.6 in)	32.8 mm (1.3 in)	27 years	47 of 100 (Notable)
30 May 1921	Windorah Post Office, AU	monthly rain	85.9 mm (3.4 in)	30.8 mm (1.2 in)	33 years	47 of 100 (Notable)
30 May 1921	Tenterfield (Federation Park), AU	daily rain	44.5 mm (1.8 in)	33.6 mm (1.3 in)	16 years	47 of 100 (Notable)
30 May 1921	Hillgrove (Hillview), AU	daily rain	47.8 mm (1.9 in)	32.6 mm (1.3 in)	20 years	46 of 100 (Notable)
30 May 1921	Crowlands (Woodlands), AU	daily rain	33.5 mm (1.3 in)	26.6 mm (1.0 in)	19 years	46 of 100 (Notable)
30 May 1921	Carrieton (Pamatta), AU	daily rain	34.3 mm (1.4 in)	25.4 mm (1.0 in)	27 years	44 of 100 (Notable)
30 May 1921	Cape Jervis Lighthouse, AU	daily rain	26.4 mm (1.0 in)	20.6 mm (0.8 in)	16 years	44 of 100 (Notable)
30 May 1921	Port Pirie Nyrstar Comparison, AU	daily rain	43.7 mm (1.7 in)	26.9 mm (1.1 in)	27 years	43 of 100 (Notable)
30 May 1921	Koolunga, AU	daily rain	25.4 mm (1.0 in)	17.8 mm (0.7 in)	27 years	42 of 100 (Notable)
30 May 1921	Belair (State Flora Nursery), AU	daily rain	36.1 mm (1.4 in)	22.1 mm (0.9 in)	27 years	41 of 100 (Notable)
30 May 1921	Wallangarra Post Office, AU	monthly rain	54.1 mm (2.1 in)	15.5 mm (0.6 in)	27 years	40 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

1818 to 1921

Records set or tied on this calendar date in each year from 1818 to 1921. 1921 had 392 records.

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

Records on 05-30 in each year
Year	Records
1818	3
1844	1
1847	1
1848	1
1852	1
1853	1
1855	1
1856	1
1858	1
1860	2
1863	1
1864	1
1865	4
1867	1
1868	4
1870	1
1871	2
1873	4
1878	1
1879	1
1880	2
1881	1
1882	2
1883	1
1884	2
1885	1
1886	1
1887	1
1889	3
1890	1
1891	1
1892	2
1893	7
1894	2
1895	5
1896	1
1897	1
1898	2
1899	4
1900	1
1901	4
1902	9
1903	12
1904	7
1905	20
1906	8
1907	20
1908	32
1909	6
1910	22
1911	22
1912	26
1913	89
1914	25
1915	32
1916	41
1917	42
1918	31
1919	90
1920	28
1921	392
1922	72
1923	121
1924	187
1925	190
1926	201
1927	177
1928	86
1929	368
1930	530
1931	316
1932	256
1933	250
1934	731
1935	88
1936	579
1937	440
1938	309
1939	336
1940	289
1941	518
1942	500
1943	444
1944	325
1945	383
1946	310
1947	880
1948	386
1949	318
1950	376
1951	448
1952	295
1953	622
1954	271
1955	377
1956	466
1957	267
1958	480
1959	419
1960	274
1961	657
1962	454
1963	245
1964	709
1965	454
1966	326
1967	859
1968	357
1969	1,092
1970	483
1971	1,044
1972	721
1973	391
1974	631
1975	776
1976	499
1977	444
1978	888
1979	1,185
1980	650
1981	1,001
1982	981
1983	1,310
1984	2,543
1985	772
1986	1,264
1987	1,021
1988	1,371
1989	1,021
1990	983
1991	1,264
1992	1,413
1993	690
1994	834
1995	777
1996	893
1997	936
1998	1,190
1999	1,113
2000	1,391
2001	854
2002	940
2003	1,110
2004	1,219
2005	737
2006	1,179
2007	1,128
2008	829
2009	480
2010	771
2011	1,914
2012	720
2013	821
2014	551
2015	699
2016	540
2017	657
2018	1,319
2019	706
2020	920
2021	841
2022	1,034
2023	344
2024	600
2025	828
2026	525

Download the Data

Data for records on 1921-05-30: 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 30 May 1921
Margin	Records
0 to 10	237
10 to 20	99
20 to 30	29
30 to 40	11
40 to 50	1
50 to 60	1