Weather Records on 21 May 1924

148 weather records were set or tied worldwide on 21 May 1924. Highest significance: Runnymede Spottsville, US.

Key Facts for 21 May 1924

On 21 May 1924, 148 weather records were set or tied at long-record stations worldwide.
16 were record highs and 93 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 147 daily.
Runnymede Spottsville set a daily record precipitation of 46.2 mm (1.8 in) on 21 May 1924.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

148 stations

148 station records on 21 May 1924 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1924: highest significance records shown on the map
Station	Country	Type	Value	Significance
Runnymede Spottsville	United States	Record daily precipitation	46.2 mm (1.8 in)	36 of 100 (Notable)
Schriever	United States	Record daily precipitation	45.7 mm (1.8 in)	28 of 100 (Routine)
Clarksville	United States	Record daily precipitation	50.0 mm (2.0 in)	26 of 100 (Routine)
Middletown 4 W	United States	Record low maximum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Brandon Cda	Canada	Record daily snowfall	5.1 cm (2.0 in)	23 of 100 (Routine)
Lakefield	Canada	Record low minimum temperature	-2.2 C (28.0 F)	21 of 100 (Routine)
Wrixum/Fohr	Germany	Record daily precipitation	17.9 mm (0.7 in)	20 of 100 (Routine)
Syktyvkar	Russia	Record daily precipitation	16.6 mm (0.7 in)	20 of 100 (Routine)
Kirchdorf/Poel	Germany	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Kunzelsau	Germany	Record daily precipitation	22.2 mm (0.9 in)	20 of 100 (Routine)
Brinkworth (Bungaree)	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Artern	Germany	Record daily precipitation	20.4 mm (0.8 in)	20 of 100 (Routine)
Wanganella (Zara)	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Treherne	Canada	Record daily snowfall	3.0 cm (1.2 in)	20 of 100 (Routine)
Weissenburg	Germany	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Fir Glen	South Africa	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Lubeck-Werft	Germany	Record daily precipitation	11.1 mm (0.4 in)	20 of 100 (Routine)
Astrakan	Russia	Record low minimum temperature	8.0 C (46.4 F)	20 of 100 (Routine)
Kirov	Russia	Record daily precipitation	27.1 mm (1.1 in)	19 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low minimum temperature	-4.4 C (24.1 F)	19 of 100 (Routine)
Murray Town (Doughboy Creek)	Australia	Record daily precipitation	11.4 mm (0.4 in)	18 of 100 (Routine)
Newry	Australia	Record daily precipitation	16.8 mm (0.7 in)	18 of 100 (Routine)
Bathurst	Canada	Record low minimum temperature	-2.8 C (27.0 F)	18 of 100 (Routine)
Bundaberg Post Office	Australia	Record high maximum temperature	28.6 C (83.5 F)	17 of 100 (Routine)
Morden	Canada	Record daily snowfall	1.3 cm (0.5 in)	17 of 100 (Routine)
White River	Canada	Record daily snowfall	2.5 cm (1.0 in)	17 of 100 (Routine)
Peterborough	Canada	Record low minimum temperature	-3.9 C (25.0 F)	17 of 100 (Routine)
Algona	United States	Record low minimum temperature	1.7 C (35.1 F)	17 of 100 (Routine)
New Ulm 2 SE	United States	Record low minimum temperature	-2.8 C (27.0 F)	17 of 100 (Routine)
Milbank 4 NW	United States	Record low minimum temperature	-4.4 C (24.1 F)	17 of 100 (Routine)
St Albans	Canada	Record daily snowfall	1.0 cm (0.4 in)	16 of 100 (Routine)
Guelph Oac	Canada	Record low minimum temperature	-2.2 C (28.0 F)	16 of 100 (Routine)
Santa Cruz	United States	Record low maximum temperature	13.9 C (57.0 F)	16 of 100 (Routine)
Independence	United States	Record low minimum temperature	-1.1 C (30.0 F)	16 of 100 (Routine)
Keosauqua	United States	Record low minimum temperature	2.8 C (37.0 F)	16 of 100 (Routine)
Cooperstown	United States	Record low minimum temperature	-3.9 C (25.0 F)	16 of 100 (Routine)
Lindsay	Canada	Record low minimum temperature	-3.9 C (25.0 F)	15 of 100 (Routine)
Enisejsk	Russia	Record high minimum temperature	11.9 C (53.4 F)	15 of 100 (Routine)
Drift Sands (Bos)	South Africa	Record daily precipitation	21.6 mm (0.9 in)	15 of 100 (Routine)
Crookston NW Exp STN	United States	Record low minimum temperature	-4.4 C (24.1 F)	15 of 100 (Routine)
Fayette	United States	Record low minimum temperature	5.0 C (41.0 F)	15 of 100 (Routine)
Plainfield	United States	Record low maximum temperature	10.6 C (51.1 F)	15 of 100 (Routine)
Somerville 4 NW	United States	Record low maximum temperature	12.8 C (55.0 F)	15 of 100 (Routine)
Michelago (Soglio)	Australia	Record daily precipitation	7.9 mm (0.31 in)	14 of 100 (Routine)
Lakes Entrance Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	14 of 100 (Routine)
Woodstock	Canada	Record low minimum temperature	-2.2 C (28.0 F)	14 of 100 (Routine)
Plauen	Germany	Record high minimum temperature	13.5 C (56.3 F)	14 of 100 (Routine)
Alexandria (Pol)	South Africa	Record daily precipitation	5.1 mm (0.20 in)	14 of 100 (Routine)
Bird Island	United States	Record low minimum temperature	-1.1 C (30.0 F)	14 of 100 (Routine)
Farmington 3NW	United States	Record low minimum temperature	-1.7 C (28.9 F)	14 of 100 (Routine)
Fergus Falls	United States	Record low minimum temperature	-2.2 C (28.0 F)	14 of 100 (Routine)
New London	United States	Record low minimum temperature	-1.7 C (28.9 F)	14 of 100 (Routine)
Pontotoc	United States	Record low minimum temperature	7.8 C (46.0 F)	14 of 100 (Routine)
Paterson	United States	Record low maximum temperature	11.1 C (52.0 F)	14 of 100 (Routine)
Port Jervis	United States	Record low maximum temperature	11.1 C (52.0 F)	14 of 100 (Routine)
Weldon	United States	Record daily precipitation	34.5 mm (1.4 in)	14 of 100 (Routine)
Grand Forks UNIV (NWS)	United States	Record low minimum temperature	-3.9 C (25.0 F)	14 of 100 (Routine)
Minto	United States	Record low minimum temperature	-5.0 C (23.0 F)	14 of 100 (Routine)
Park Rapids Muni AP	United States	Record low minimum temperature	-4.4 C (24.1 F)	14 of 100 (Routine)
Chatham	Canada	Record low minimum temperature	-3.3 C (26.1 F)	13 of 100 (Routine)

Counts by Type and Timescale

148 records

Records set or tied on 21 May 1924 by type: Highest daily maximum 6, Lowest daily maximum 28, Highest daily minimum 10, Lowest daily minimum 65, Heaviest daily rainfall 33, Heaviest daily snowfall 6.

Records on 21 May 1924 by type
Record type	Records
Highest daily maximum	6
Lowest daily maximum	28
Highest daily minimum	10
Lowest daily minimum	65
Heaviest daily rainfall	33
Heaviest daily snowfall	6
Deepest snow cover	0

Records on 21 May 1924 by timescale: all-time 0, monthly 1, daily 147.

How Much Records Were Beaten By

106 broken records

Margins by which the 106 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 51.0. Ties are not counted.

Top 20 by Significance

21 May 1924

Top 20 records on 21 May 1924 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1924	Runnymede Spottsville, US	daily rain	46.2 mm (1.8 in)	25.6 mm (1.0 in)	27 years	36 of 100 (Notable)
21 May 1924	Schriever, US	daily rain	45.7 mm (1.8 in)	31.7 mm (1.2 in)	28 years	28 of 100 (Routine)
21 May 1924	Clarksville, US	daily rain	50.0 mm (2.0 in)	24.6 mm (1.0 in)	5 years	26 of 100 (Routine)
21 May 1924	Middletown 4 W, US	daily low max	8.3 C (46.9 F)	6.7 C (12.1 F)	27 years	25 of 100 (Routine)
21 May 1924	Brandon Cda, CA	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	33 years	23 of 100 (Routine)
21 May 1924	Lakefield, CA	daily low min	-2.2 C (28.0 F)	3.3 C (5.9 F)	33 years	21 of 100 (Routine)
21 May 1924	Wrixum/Fohr, DE	daily rain	17.9 mm (0.7 in)	12.0 mm (0.5 in)	31 years	20 of 100 (Routine)
21 May 1924	Syktyvkar, RU	daily rain	16.6 mm (0.7 in)	9.7 mm (0.38 in)	27 years	20 of 100 (Routine)
21 May 1924	Kirchdorf/Poel, DE	daily rain	16.0 mm (0.6 in)	10.6 mm (0.4 in)	17 years	20 of 100 (Routine)
21 May 1924	Kunzelsau, DE	daily rain	22.2 mm (0.9 in)	12.6 mm (0.5 in)	32 years	20 of 100 (Routine)
21 May 1924	Brinkworth (Bungaree), AU	daily rain	24.4 mm (1.0 in)	10.7 mm (0.4 in)	34 years	20 of 100 (Routine)
21 May 1924	Artern, DE	daily rain	20.4 mm (0.8 in)	11.1 mm (0.4 in)	16 years	20 of 100 (Routine)
21 May 1924	Wanganella (Zara), AU	daily rain	8.6 mm (0.34 in)	1.0 mm (0.04 in)	53 years	20 of 100 (Routine)
21 May 1924	Treherne, CA	daily snowfall	3.0 cm (1.2 in)	3.0 cm (1.2 in)	38 years	20 of 100 (Routine)
21 May 1924	Weissenburg, DE	daily rain	16.5 mm (0.6 in)	5.7 mm (0.22 in)	28 years	20 of 100 (Routine)
21 May 1924	Fir Glen, ZA	daily rain	12.7 mm (0.5 in)	7.9 mm (0.31 in)	41 years	20 of 100 (Routine)
21 May 1924	Lubeck-Werft, DE	daily rain	11.1 mm (0.4 in)	4.4 mm (0.17 in)	27 years	20 of 100 (Routine)
21 May 1924	Astrakan, RU	daily low min	8.0 C (46.4 F)	2.4 C (4.3 F)	33 years	20 of 100 (Routine)
21 May 1924	Kirov, RU	monthly rain	27.1 mm (1.1 in)	1.9 mm (0.07 in)	3 years	19 of 100 (Routine)
21 May 1924	Morris W Cntrl Rsch & Outreach, US	daily low min	-4.4 C (24.1 F)	4.4 C (7.9 F)	28 years	19 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 1924

Records set or tied on this calendar date in each year from 1793 to 1924. 1924 had 148 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 1924-05-21: 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 2026-10-16 (16 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 21 May 1924
Margin	Records
0 to 10	89
10 to 20	12
20 to 30	2
30 to 40	2
40 to 50	0
50 to 60	1