Weather Records on 21 May 1933

290 weather records were set or tied worldwide on 21 May 1933. Highest significance: Concord Walker Hospital, AU.

Key Facts for 21 May 1933

On 21 May 1933, 290 weather records were set or tied at long-record stations worldwide.
123 were record highs and 28 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 281 daily.
Concord Walker Hospital set a daily record precipitation of 128.0 mm (5.0 in) on 21 May 1933.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

290 stations

290 station records on 21 May 1933 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1933: highest significance records shown on the map
Station	Country	Type	Value	Significance
Concord Walker Hospital	Australia	Record daily precipitation	128.0 mm (5.0 in)	49 of 100 (Notable)
Dharingbadi	India	Record daily precipitation	73.2 mm (2.9 in)	49 of 100 (Notable)
Olathe 3E	United States	Record daily precipitation	66.5 mm (2.6 in)	45 of 100 (Notable)
Boolardy	Australia	Record daily precipitation	80.8 mm (3.2 in)	42 of 100 (Notable)
Gabo Island Lighthouse	Australia	Record daily precipitation	71.4 mm (2.8 in)	39 of 100 (Notable)
Balliguda	India	Record daily precipitation	39.1 mm (1.5 in)	39 of 100 (Notable)
Palestine	United States	Record daily precipitation	44.5 mm (1.8 in)	37 of 100 (Notable)
Portsmouth-Sciotoville	United States	Record daily precipitation	58.2 mm (2.3 in)	37 of 100 (Notable)
Peedamullah	Australia	Record daily precipitation	57.2 mm (2.3 in)	35 of 100 (Notable)
Aska	India	Record daily precipitation	49.5 mm (1.9 in)	35 of 100 (Notable)
Sans Souci (Public School)	Australia	Record daily precipitation	76.2 mm (3.0 in)	33 of 100 (Routine)
Villupuram	India	Record daily precipitation	64.8 mm (2.6 in)	33 of 100 (Routine)
Noorinbee	Australia	Record daily precipitation	71.1 mm (2.8 in)	32 of 100 (Routine)
Narsingpur	India	Record daily precipitation	44.7 mm (1.8 in)	32 of 100 (Routine)
Bhavani	India	Record daily precipitation	64.5 mm (2.5 in)	32 of 100 (Routine)
Farmersburg	United States	Record daily precipitation	50.3 mm (2.0 in)	31 of 100 (Routine)
Mandya	India	Record daily precipitation	63.0 mm (2.5 in)	29 of 100 (Routine)
Rajnandgaon	India	Record daily precipitation	48.3 mm (1.9 in)	29 of 100 (Routine)
Huntington 1	United States	Record daily precipitation	38.9 mm (1.5 in)	29 of 100 (Routine)
Hajo	India	Record daily precipitation	79.2 mm (3.1 in)	28 of 100 (Routine)
Morvi	India	Record daily precipitation	53.8 mm (2.1 in)	27 of 100 (Routine)
Ulundurpet	India	Record daily precipitation	44.2 mm (1.7 in)	27 of 100 (Routine)
Point Amour	Canada	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Chinook	United States	Record daily precipitation	43.9 mm (1.7 in)	26 of 100 (Routine)
Kamalpur	India	Record daily precipitation	63.0 mm (2.5 in)	25 of 100 (Routine)
Perundurai	India	Record daily precipitation	44.7 mm (1.8 in)	25 of 100 (Routine)
Denkanikottah	India	Record daily precipitation	47.0 mm (1.9 in)	25 of 100 (Routine)
Ottawa	United States	Record daily precipitation	47.0 mm (1.9 in)	25 of 100 (Routine)
Pontotoc	United States	Record high minimum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
St Marys Bowling Club	Australia	Record daily precipitation	56.6 mm (2.2 in)	24 of 100 (Routine)
Athens	United States	Record high maximum temperature	36.7 C (98.1 F)	24 of 100 (Routine)
Effingham 3SW	United States	Record daily precipitation	31.0 mm (1.2 in)	24 of 100 (Routine)
Marshall	United States	Record daily precipitation	37.1 mm (1.5 in)	24 of 100 (Routine)
Onslow	Australia	Record daily precipitation	26.9 mm (1.1 in)	23 of 100 (Routine)
Dhakuakhana	India	Record daily precipitation	62.0 mm (2.4 in)	23 of 100 (Routine)
Rajkot	India	Record daily precipitation	27.7 mm (1.1 in)	23 of 100 (Routine)
Tirukoilur	India	Record daily precipitation	56.6 mm (2.2 in)	23 of 100 (Routine)
Kodavasal	India	Record daily precipitation	35.6 mm (1.4 in)	22 of 100 (Routine)
Chhuikhadan	India	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Karratha Station	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Harrai	India	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Kamiesberg	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Poltava	Ukraine	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Jindabyne West (Hiawatha)	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Woodbrook	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Morgantown 1	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Paupong Station	Australia	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Dhoraji	India	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Banki Bankigarh	India	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Rehli	India	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record high minimum temperature	19.0 C (66.2 F)	20 of 100 (Routine)
Belle Isle	Canada	Record low minimum temperature	-5.6 C (21.9 F)	20 of 100 (Routine)
Nalia	India	Record daily precipitation	28.7 mm (1.1 in)	20 of 100 (Routine)
Minden	United States	Record daily precipitation	51.1 mm (2.0 in)	20 of 100 (Routine)
Moncton	Canada	Record low minimum temperature	-4.4 C (24.1 F)	19 of 100 (Routine)
Wilton	India	Record daily precipitation	47.8 mm (1.9 in)	19 of 100 (Routine)
Camp Hill 2NW	United States	Record high maximum temperature	35.0 C (95.0 F)	19 of 100 (Routine)
Scottsboro	United States	Record high maximum temperature	33.9 C (93.0 F)	19 of 100 (Routine)
Granite Reef Dam	United States	Record low minimum temperature	3.3 C (37.9 F)	19 of 100 (Routine)
Markland Dam 39	United States	Record daily precipitation	35.6 mm (1.4 in)	19 of 100 (Routine)

Counts by Type and Timescale

290 records

Records set or tied on 21 May 1933 by type: Highest daily maximum 73, Lowest daily maximum 16, Highest daily minimum 50, Lowest daily minimum 12, Heaviest daily rainfall 137, Heaviest daily snowfall 2.

Records on 21 May 1933 by type
Record type	Records
Highest daily maximum	73
Lowest daily maximum	16
Highest daily minimum	50
Lowest daily minimum	12
Heaviest daily rainfall	137
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 21 May 1933 by timescale: all-time 0, monthly 9, daily 281.

How Much Records Were Beaten By

233 broken records

Margins by which the 233 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

21 May 1933

Top 20 records on 21 May 1933 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1933	Concord Walker Hospital, AU	daily rain	128.0 mm (5.0 in)	97.5 mm (3.8 in)	19 years	49 of 100 (Notable)
21 May 1933	Dharingbadi, IN	daily rain	73.2 mm (2.9 in)	65.6 mm (2.6 in)	20 years	49 of 100 (Notable)
21 May 1933	Olathe 3E, US	daily rain	66.5 mm (2.6 in)	49.2 mm (1.9 in)	16 years	45 of 100 (Notable)
21 May 1933	Boolardy, AU	monthly rain	80.8 mm (3.2 in)	27.5 mm (1.1 in)	4 years	42 of 100 (Notable)
21 May 1933	Gabo Island Lighthouse, AU	daily rain	71.4 mm (2.8 in)	19.8 mm (0.8 in)	61 years	39 of 100 (Notable)
21 May 1933	Balliguda, IN	daily rain	39.1 mm (1.5 in)	33.5 mm (1.3 in)	30 years	39 of 100 (Notable)
21 May 1933	Palestine, US	daily rain	44.5 mm (1.8 in)	34.1 mm (1.3 in)	31 years	37 of 100 (Notable)
21 May 1933	Portsmouth-Sciotoville, US	daily rain	58.2 mm (2.3 in)	22.6 mm (0.9 in)	32 years	37 of 100 (Notable)
21 May 1933	Peedamullah, AU	daily rain	57.2 mm (2.3 in)	47.5 mm (1.9 in)	22 years	35 of 100 (Notable)
21 May 1933	Aska, IN	daily rain	49.5 mm (1.9 in)	34.0 mm (1.3 in)	26 years	35 of 100 (Notable)
21 May 1933	Sans Souci (Public School), AU	daily rain	76.2 mm (3.0 in)	49.8 mm (2.0 in)	19 years	33 of 100 (Routine)
21 May 1933	Villupuram, IN	daily rain	64.8 mm (2.6 in)	51.8 mm (2.0 in)	23 years	33 of 100 (Routine)
21 May 1933	Noorinbee, AU	daily rain	71.1 mm (2.8 in)	33.0 mm (1.3 in)	0 years	32 of 100 (Routine)
21 May 1933	Narsingpur, IN	daily rain	44.7 mm (1.8 in)	40.9 mm (1.6 in)	10 years	32 of 100 (Routine)
21 May 1933	Bhavani, IN	daily rain	64.5 mm (2.5 in)	34.0 mm (1.3 in)	23 years	32 of 100 (Routine)
21 May 1933	Farmersburg, US	daily rain	50.3 mm (2.0 in)	37.9 mm (1.5 in)	8 years	31 of 100 (Routine)
21 May 1933	Mandya, IN	daily rain	63.0 mm (2.5 in)	35.1 mm (1.4 in)	16 years	29 of 100 (Routine)
21 May 1933	Rajnandgaon, IN	monthly rain	48.3 mm (1.9 in)	7.7 mm (0.30 in)	25 years	29 of 100 (Routine)
21 May 1933	Huntington 1, US	daily rain	38.9 mm (1.5 in)	19.1 mm (0.8 in)	20 years	29 of 100 (Routine)
21 May 1933	Hajo, IN	daily rain	79.2 mm (3.1 in)	30.9 mm (1.2 in)	24 years	28 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 1933

Records set or tied on this calendar date in each year from 1793 to 1933. 1933 had 290 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 1933-05-21: 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 2026-10-13 (13 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 20	200
20 to 40	24
40 to 60	6
60 to 80	1
80 to 100	1
100 to 120	1