Weather Records on 21 May 1919

170 weather records were set or tied worldwide on 21 May 1919. Highest significance: Bukalong Station, AU.

Key Facts for 21 May 1919

On 21 May 1919, 170 weather records were set or tied at long-record stations worldwide.
15 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 164 daily.
Bukalong Station set a daily record precipitation of 34.8 mm (1.4 in) on 21 May 1919.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

170 stations

170 station records on 21 May 1919 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1919: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bukalong Station	Australia	Record daily precipitation	34.8 mm (1.4 in)	40 of 100 (Notable)
Brewarrina (Talawanta)	Australia	Record daily precipitation	40.6 mm (1.6 in)	39 of 100 (Notable)
Walgett (Euroka)	Australia	Record daily precipitation	72.4 mm (2.9 in)	36 of 100 (Notable)
Dinby	Australia	Record daily precipitation	53.3 mm (2.1 in)	36 of 100 (Notable)
Dirranbandi High School	Australia	Record daily precipitation	39.1 mm (1.5 in)	35 of 100 (Notable)
Cobar (Tindarey)	Australia	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Toulby	Australia	Record daily precipitation	44.2 mm (1.7 in)	34 of 100 (Routine)
Mount McDonald	Australia	Record daily precipitation	38.1 mm (1.5 in)	34 of 100 (Routine)
Nelgowrie	Australia	Record daily precipitation	64.8 mm (2.6 in)	33 of 100 (Routine)
Broken Hill (Patton Street)	Australia	Record daily precipitation	26.4 mm (1.0 in)	32 of 100 (Routine)
Cobar (Lerida)	Australia	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Narrandera (Brewarrana)	Australia	Record daily precipitation	46.7 mm (1.8 in)	30 of 100 (Routine)
Springfield 3	Australia	Record daily precipitation	29.7 mm (1.2 in)	30 of 100 (Routine)
Mount Macedon	Australia	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Bollon Mary St	Australia	Record daily precipitation	71.1 mm (2.8 in)	28 of 100 (Routine)
M.R.A.	Australia	Record daily precipitation	35.6 mm (1.4 in)	28 of 100 (Routine)
Shearleys Tank	Australia	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Warren (Haddon Rig)	Australia	Record daily precipitation	36.8 mm (1.4 in)	26 of 100 (Routine)
Bourke (Beemery)	Australia	Record daily precipitation	42.7 mm (1.7 in)	25 of 100 (Routine)
Emu Park Hill St	Australia	Record daily precipitation	49.0 mm (1.9 in)	24 of 100 (Routine)
Mitchell Post Office	Australia	Record daily precipitation	49.5 mm (1.9 in)	24 of 100 (Routine)
Morven Post Office	Australia	Record daily precipitation	66.0 mm (2.6 in)	24 of 100 (Routine)
Marra Creek (Womboin)	Australia	Record daily precipitation	35.6 mm (1.4 in)	24 of 100 (Routine)
Walma	Australia	Record daily precipitation	27.4 mm (1.1 in)	24 of 100 (Routine)
Eden (Caravan Park)	Australia	Record daily precipitation	36.3 mm (1.4 in)	24 of 100 (Routine)
Kingston Queens U	Canada	Record daily precipitation	26.2 mm (1.0 in)	24 of 100 (Routine)
Goodooga (Brenda)	Australia	Record daily precipitation	33.8 mm (1.3 in)	23 of 100 (Routine)
Quabathoo	Australia	Record daily precipitation	45.2 mm (1.8 in)	23 of 100 (Routine)
Roma Post Office	Australia	Record daily precipitation	34.3 mm (1.4 in)	21 of 100 (Routine)
St George Post Office	Australia	Record daily precipitation	34.8 mm (1.4 in)	21 of 100 (Routine)
Surat	Australia	Record daily precipitation	38.1 mm (1.5 in)	21 of 100 (Routine)
Cockburn (Burta)	Australia	Record daily precipitation	29.2 mm (1.1 in)	21 of 100 (Routine)
Conoble	Australia	Record daily precipitation	32.3 mm (1.3 in)	21 of 100 (Routine)
Gnalta	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Ottawa	Canada	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Cultowa	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Poolamacca	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Gilbert River Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Broken Hill (Nuntherungie)	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Milparinka (Yandama Downs)	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Cannonbar	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Hungerford	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Cobar Post Office	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
East Toorale (Toorale Station)	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Outalpa	Australia	Record daily precipitation	9.4 mm (0.37 in)	20 of 100 (Routine)
Georgetown Post Office	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Goorimpa	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Talyealye	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Milparinka Hotel	Australia	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Manfred	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
White Cliffs (Tongo)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Marfield	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Bungonia (Inverary Park)	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Cunnamulla Post Office	Australia	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Woolerina	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Netley	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Hatfield (Clare)	Australia	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Collerina (Corrella)	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Coronga Peak	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Combogolong	Australia	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

170 records

Records set or tied on 21 May 1919 by type: Highest daily maximum 8, Highest daily minimum 7, Lowest daily minimum 3, Heaviest daily rainfall 152.

Records on 21 May 1919 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	0
Highest daily minimum	7
Lowest daily minimum	3
Heaviest daily rainfall	152
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 May 1919 by timescale: all-time 0, monthly 6, daily 164.

How Much Records Were Beaten By

159 broken records

Margins by which the 159 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 38.8. Ties are not counted.

Top 20 by Significance

21 May 1919

Top 20 records on 21 May 1919 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1919	Bukalong Station, AU	daily rain	34.8 mm (1.4 in)	31.5 mm (1.2 in)	10 years	40 of 100 (Notable)
21 May 1919	Brewarrina (Talawanta), AU	daily rain	40.6 mm (1.6 in)	31.2 mm (1.2 in)	22 years	39 of 100 (Notable)
21 May 1919	Walgett (Euroka), AU	monthly rain	72.4 mm (2.9 in)	21.9 mm (0.9 in)	16 years	36 of 100 (Notable)
21 May 1919	Dinby, AU	daily rain	53.3 mm (2.1 in)	38.8 mm (1.5 in)	22 years	36 of 100 (Notable)
21 May 1919	Dirranbandi High School, AU	daily rain	39.1 mm (1.5 in)	26.4 mm (1.0 in)	29 years	35 of 100 (Notable)
21 May 1919	Cobar (Tindarey), AU	daily rain	27.9 mm (1.1 in)	23.8 mm (0.9 in)	22 years	35 of 100 (Notable)
21 May 1919	Toulby, AU	daily rain	44.2 mm (1.7 in)	27.4 mm (1.1 in)	22 years	34 of 100 (Routine)
21 May 1919	Mount McDonald, AU	daily rain	38.1 mm (1.5 in)	19.8 mm (0.8 in)	29 years	34 of 100 (Routine)
21 May 1919	Nelgowrie, AU	monthly rain	64.8 mm (2.6 in)	14.3 mm (0.6 in)	22 years	33 of 100 (Routine)
21 May 1919	Broken Hill (Patton Street), AU	daily rain	26.4 mm (1.0 in)	23.9 mm (0.9 in)	16 years	32 of 100 (Routine)
21 May 1919	Cobar (Lerida), AU	daily rain	28.2 mm (1.1 in)	19.6 mm (0.8 in)	22 years	32 of 100 (Routine)
21 May 1919	Narrandera (Brewarrana), AU	daily rain	46.7 mm (1.8 in)	16.2 mm (0.6 in)	29 years	30 of 100 (Routine)
21 May 1919	Springfield 3, AU	daily rain	29.7 mm (1.2 in)	26.1 mm (1.0 in)	16 years	30 of 100 (Routine)
21 May 1919	Mount Macedon, AU	daily rain	31.8 mm (1.3 in)	18.3 mm (0.7 in)	29 years	30 of 100 (Routine)
21 May 1919	Bollon Mary St, AU	monthly rain	71.1 mm (2.8 in)	15.2 mm (0.6 in)	5 years	28 of 100 (Routine)
21 May 1919	M.R.A., AU	daily rain	35.6 mm (1.4 in)	21.6 mm (0.9 in)	16 years	28 of 100 (Routine)
21 May 1919	Shearleys Tank, AU	daily rain	25.4 mm (1.0 in)	14.5 mm (0.6 in)	22 years	28 of 100 (Routine)
21 May 1919	Warren (Haddon Rig), AU	daily rain	36.8 mm (1.4 in)	15.2 mm (0.6 in)	29 years	26 of 100 (Routine)
21 May 1919	Bourke (Beemery), AU	daily rain	42.7 mm (1.7 in)	15.8 mm (0.6 in)	22 years	25 of 100 (Routine)
21 May 1919	Emu Park Hill St, AU	daily rain	49.0 mm (1.9 in)	29.9 mm (1.2 in)	26 years	24 of 100 (Routine)

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

1793 to 1919

Records set or tied on this calendar date in each year from 1793 to 1919. 1919 had 170 records.

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

Records on 05-21 in each year
Year	Records
1793	1
1795	1
1811	1
1837	2
1842	1
1847	2
1854	1
1857	1
1858	1
1865	1
1866	1
1870	2
1875	1
1876	1
1880	2
1882	1
1885	1
1886	2
1887	3
1889	5
1890	3
1891	6
1892	1
1893	1
1894	4
1895	4
1896	5
1897	2
1898	1
1899	5
1900	1
1901	3
1902	4
1903	26
1904	8
1905	7
1906	12
1907	36
1908	13
1909	13
1910	14
1911	87
1912	24
1913	13
1914	26
1915	24
1916	13
1917	76
1918	51
1919	170
1920	39
1921	158
1922	39
1923	125
1924	148
1925	250
1926	221
1927	207
1928	173
1929	247
1930	133
1931	488
1932	343
1933	290
1934	590
1935	190
1936	328
1937	227
1938	348
1939	355
1940	456
1941	525
1942	482
1943	463
1944	310
1945	515
1946	324
1947	485
1948	312
1949	593
1950	403
1951	271
1952	385
1953	501
1954	961
1955	507
1956	409
1957	709
1958	511
1959	684
1960	615
1961	306
1962	553
1963	598
1964	788
1965	238
1966	296
1967	1,022
1968	549
1969	832
1970	449
1971	536
1972	557
1973	493
1974	847
1975	1,160
1976	393
1977	756
1978	575
1979	787
1980	857
1981	1,550
1982	599
1983	1,106
1984	950
1985	610
1986	908
1987	1,242
1988	819
1989	671
1990	947
1991	1,065
1992	1,143
1993	1,197
1994	656
1995	749
1996	1,461
1997	953
1998	1,200
1999	544
2000	897
2001	1,187
2002	2,048
2003	807
2004	898
2005	1,020
2006	810
2007	894
2008	740
2009	1,315
2010	962
2011	959
2012	848
2013	884
2014	522
2015	956
2016	567
2017	780
2018	525
2019	1,668
2020	707
2021	1,131
2022	1,512
2023	794
2024	751
2025	776
2026	356

Download the Data

Data for records on 1919-05-21: 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 5	62
5 to 10	31
10 to 15	30
15 to 20	19
20 to 25	10
25 to 30	4
30 to 35	2
35 to 40	1