Weather Records on 20 May 1923

125 weather records were set or tied worldwide on 20 May 1923. Highest significance: Runnymede Spottsville, US.

Key Facts for 20 May 1923

On 20 May 1923, 125 weather records were set or tied at long-record stations worldwide.
27 were record highs and 5 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 122 daily.
Runnymede Spottsville set a daily record precipitation of 50.8 mm (2.0 in) on 20 May 1923.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 458 records.

Record Map

125 stations

125 station records on 20 May 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Runnymede Spottsville	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Alton	Canada	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Franklin 3 NW	United States	Record daily precipitation	74.7 mm (2.9 in)	35 of 100 (Notable)
Cape Northumberland	Australia	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	29.4 C (84.9 F)	33 of 100 (Routine)
Renfrew	Canada	Record daily precipitation	25.7 mm (1.0 in)	29 of 100 (Routine)
Dalby Post Office	Australia	Record high maximum temperature	31.3 C (88.3 F)	23 of 100 (Routine)
Walgett Council Depot	Australia	Record high maximum temperature	30.0 C (86.0 F)	23 of 100 (Routine)
Haliburton A	Canada	Record daily precipitation	40.6 mm (1.6 in)	23 of 100 (Routine)
Brisbane Regional Office	Australia	Record high maximum temperature	28.4 C (83.1 F)	21 of 100 (Routine)
Bathurst Gaol	Australia	Record high minimum temperature	13.3 C (55.9 F)	21 of 100 (Routine)
Yalta	Ukraine	Record daily precipitation	23.0 mm (0.9 in)	20 of 100 (Routine)
Manoora	Australia	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Henichesk	Ukraine	Record daily precipitation	12.1 mm (0.5 in)	20 of 100 (Routine)
Stockport	Australia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Malmsbury Reservoir	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Hastings Post Office	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Expedition Pass Reservoir	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Orleansville (Chlef)	Algeria	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Auburn	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Freeling Railway	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Fryerstown	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Mount Pleasant	Australia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Emu Rail (Dalyenong)	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Maryborough	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Boort	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Gredgwin (Barraport North)	Australia	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Avoca (Post Office)	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Woodstock	Canada	Record daily precipitation	45.5 mm (1.8 in)	20 of 100 (Routine)
Mannum Council Depot	Australia	Record daily precipitation	8.1 mm (0.32 in)	19 of 100 (Routine)
Murray Bridge (Tepko)	Australia	Record daily precipitation	16.5 mm (0.6 in)	19 of 100 (Routine)
Laen	Australia	Record daily precipitation	13.2 mm (0.5 in)	19 of 100 (Routine)
Malvern	United States	Record high maximum temperature	36.7 C (98.1 F)	19 of 100 (Routine)
Roseworthy Agric College	Australia	Record daily precipitation	19.1 mm (0.8 in)	18 of 100 (Routine)
Riverton	Australia	Record daily precipitation	20.6 mm (0.8 in)	18 of 100 (Routine)
Goondiwindi Post Office	Australia	Record high maximum temperature	31.8 C (89.2 F)	18 of 100 (Routine)
Inverell Comparison	Australia	Record high maximum temperature	27.2 C (81.0 F)	18 of 100 (Routine)
Moose Factory	Canada	Record daily precipitation	15.7 mm (0.6 in)	18 of 100 (Routine)
Chattanooga Wb City	United States	Record daily precipitation	30.2 mm (1.2 in)	18 of 100 (Routine)
Marrabel	Australia	Record daily precipitation	20.6 mm (0.8 in)	17 of 100 (Routine)
Stockwell	Australia	Record daily precipitation	19.8 mm (0.8 in)	17 of 100 (Routine)
Avoca	Australia	Record daily precipitation	19.8 mm (0.8 in)	17 of 100 (Routine)
Port Arthur	Canada	Record daily precipitation	15.7 mm (0.6 in)	17 of 100 (Routine)
Waynesboro 2 W	United States	Record daily precipitation	54.9 mm (2.2 in)	17 of 100 (Routine)
Jacksonville Wb City	United States	Record daily precipitation	26.2 mm (1.0 in)	17 of 100 (Routine)
Kapunda Reservoir	Australia	Record daily precipitation	19.8 mm (0.8 in)	16 of 100 (Routine)
Birdwood	Australia	Record daily precipitation	23.6 mm (0.9 in)	16 of 100 (Routine)
Truro	Australia	Record daily precipitation	19.8 mm (0.8 in)	16 of 100 (Routine)
Kalpienung	Australia	Record daily precipitation	9.4 mm (0.37 in)	16 of 100 (Routine)
Laanecoorie Weir	Australia	Record daily precipitation	12.4 mm (0.5 in)	16 of 100 (Routine)
Clydebank	Australia	Record daily precipitation	13.0 mm (0.5 in)	16 of 100 (Routine)
Ninyeunook	Australia	Record daily precipitation	8.1 mm (0.32 in)	15 of 100 (Routine)
London South	Canada	Record daily precipitation	18.8 mm (0.7 in)	15 of 100 (Routine)
Stratford	Canada	Record daily precipitation	38.4 mm (1.5 in)	15 of 100 (Routine)
Blyth	Australia	Record daily precipitation	8.6 mm (0.34 in)	14 of 100 (Routine)
Burra (Kooringa)	Australia	Record daily precipitation	11.4 mm (0.4 in)	14 of 100 (Routine)
Wycheproof (Post Office)	Australia	Record daily precipitation	10.2 mm (0.4 in)	14 of 100 (Routine)
Tullaroop Reservoir	Australia	Record daily precipitation	17.3 mm (0.7 in)	14 of 100 (Routine)
Beech Forest	Australia	Record daily precipitation	27.2 mm (1.1 in)	14 of 100 (Routine)
Grayling	United States	Record daily precipitation	35.8 mm (1.4 in)	14 of 100 (Routine)

Counts by Type and Timescale

125 records

Records set or tied on 20 May 1923 by type: Highest daily maximum 17, Lowest daily maximum 2, Highest daily minimum 10, Lowest daily minimum 3, Heaviest daily rainfall 93.

Records on 20 May 1923 by type
Record type	Records
Highest daily maximum	17
Lowest daily maximum	2
Highest daily minimum	10
Lowest daily minimum	3
Heaviest daily rainfall	93
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 May 1923 by timescale: all-time 0, monthly 3, daily 122.

How Much Records Were Beaten By

116 broken records

Margins by which the 116 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 56.9. Ties are not counted.

Top 20 by Significance

20 May 1923

Top 20 records on 20 May 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1923	Runnymede Spottsville, US	daily rain	50.8 mm (2.0 in)	27.9 mm (1.1 in)	27 years	39 of 100 (Notable)
20 May 1923	Alton, CA	daily rain	48.3 mm (1.9 in)	26.5 mm (1.0 in)	21 years	36 of 100 (Notable)
20 May 1923	Franklin 3 NW, US	daily rain	74.7 mm (2.9 in)	56.9 mm (2.2 in)	21 years	35 of 100 (Notable)
20 May 1923	Cape Northumberland, AU	daily rain	29.0 mm (1.1 in)	11.7 mm (0.5 in)	28 years	33 of 100 (Routine)
20 May 1923	Sydney (Observatory Hill), AU	daily high max	29.4 C (84.9 F)	5.2 C (9.4 F)	21 years	33 of 100 (Routine)
20 May 1923	Renfrew, CA	daily rain	25.7 mm (1.0 in)	14.5 mm (0.6 in)	32 years	29 of 100 (Routine)
20 May 1923	Dalby Post Office, AU	daily high max	31.3 C (88.3 F)	5.2 C (9.4 F)	16 years	23 of 100 (Routine)
20 May 1923	Walgett Council Depot, AU	daily high max	30.0 C (86.0 F)	2.8 C (5.0 F)	40 years	23 of 100 (Routine)
20 May 1923	Haliburton A, CA	daily rain	40.6 mm (1.6 in)	10.1 mm (0.4 in)	25 years	23 of 100 (Routine)
20 May 1923	Brisbane Regional Office, AU	daily high max	28.4 C (83.1 F)	2.9 C (5.2 F)	21 years	21 of 100 (Routine)
20 May 1923	Bathurst Gaol, AU	monthly high min	13.3 C (55.9 F)	0.2 C (0.4 F)	18 years	21 of 100 (Routine)
20 May 1923	Yalta, UA	daily rain	23.0 mm (0.9 in)	13.2 mm (0.5 in)	4 years	20 of 100 (Routine)
20 May 1923	Manoora, AU	daily rain	21.1 mm (0.8 in)	13.5 mm (0.5 in)	20 years	20 of 100 (Routine)
20 May 1923	Henichesk, UA	daily rain	12.1 mm (0.5 in)	8.4 mm (0.33 in)	36 years	20 of 100 (Routine)
20 May 1923	Stockport, AU	daily rain	15.0 mm (0.6 in)	10.9 mm (0.4 in)	20 years	20 of 100 (Routine)
20 May 1923	Malmsbury Reservoir, AU	daily rain	21.8 mm (0.9 in)	8.3 mm (0.33 in)	48 years	20 of 100 (Routine)
20 May 1923	Hastings Post Office, AU	daily rain	22.4 mm (0.9 in)	6.7 mm (0.26 in)	45 years	20 of 100 (Routine)
20 May 1923	Expedition Pass Reservoir, AU	daily rain	19.1 mm (0.8 in)	6.4 mm (0.25 in)	48 years	20 of 100 (Routine)
20 May 1923	Orleansville (Chlef), DZ	daily rain	24.4 mm (1.0 in)	12.7 mm (0.5 in)	22 years	20 of 100 (Routine)
20 May 1923	Auburn, AU	daily rain	22.9 mm (0.9 in)	15.0 mm (0.6 in)	20 years	20 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

1802 to 1923

Records set or tied on this calendar date in each year from 1802 to 1923. 1923 had 125 records.

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

Records on 05-20 in each year
Year	Records
1802	1
1803	1
1804	1
1815	1
1825	1
1837	1
1844	1
1845	3
1847	1
1854	1
1858	3
1861	1
1862	1
1865	1
1867	1
1868	2
1870	3
1871	2
1876	2
1877	3
1879	1
1880	2
1884	2
1885	1
1887	2
1889	3
1890	3
1891	5
1892	3
1893	1
1894	6
1895	3
1896	3
1897	3
1898	4
1899	4
1900	1
1901	5
1902	11
1903	19
1904	4
1905	4
1906	22
1907	35
1908	23
1909	10
1910	20
1911	82
1912	20
1913	10
1914	16
1915	42
1916	29
1917	46
1918	92
1919	56
1920	44
1921	234
1922	40
1923	125
1924	189
1925	251
1926	128
1927	118
1928	138
1929	323
1930	129
1931	451
1932	689
1933	449
1934	582
1935	259
1936	207
1937	270
1938	331
1939	266
1940	337
1941	378
1942	337
1943	802
1944	315
1945	498
1946	339
1947	358
1948	514
1949	586
1950	327
1951	288
1952	615
1953	518
1954	822
1955	421
1956	565
1957	728
1958	378
1959	785
1960	612
1961	333
1962	773
1963	732
1964	517
1965	200
1966	416
1967	587
1968	743
1969	885
1970	310
1971	653
1972	612
1973	419
1974	893
1975	1,332
1976	837
1977	553
1978	534
1979	683
1980	751
1981	1,540
1982	554
1983	1,307
1984	867
1985	426
1986	790
1987	1,036
1988	805
1989	764
1990	722
1991	925
1992	1,200
1993	1,208
1994	778
1995	734
1996	1,749
1997	1,106
1998	1,124
1999	673
2000	991
2001	847
2002	2,299
2003	1,201
2004	746
2005	929
2006	1,006
2007	565
2008	999
2009	1,529
2010	1,011
2011	1,117
2012	604
2013	919
2014	629
2015	1,001
2016	692
2017	1,214
2018	460
2019	1,483
2020	784
2021	904
2022	1,643
2023	1,106
2024	478
2025	969
2026	696

Download the Data

Data for records on 1923-05-20: 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).