Weather Records on 20 May 1915

42 weather records were set or tied worldwide on 20 May 1915. Highest significance: Kew, AU.

Key Facts for 20 May 1915

On 20 May 1915, 42 weather records were set or tied at long-record stations worldwide.
2 were record highs and 24 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 40 daily.
Kew set a daily record precipitation of 25.1 mm (1.0 in) on 20 May 1915.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 458 records.

Record Map

42 stations

42 station records on 20 May 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 1915: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kew	Australia	Record daily precipitation	25.1 mm (1.0 in)	38 of 100 (Notable)
Cradock	South Africa	Record daily precipitation	40.6 mm (1.6 in)	24 of 100 (Routine)
Steynsburg	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Gunnedah Pool	Australia	Record low maximum temperature	11.1 C (52.0 F)	20 of 100 (Routine)
Inverell Comparison	Australia	Record low maximum temperature	8.2 C (46.8 F)	19 of 100 (Routine)
Malin Head	Ireland	Record daily precipitation	11.8 mm (0.5 in)	19 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	13.3 C (55.9 F)	18 of 100 (Routine)
Venterstad	South Africa	Record daily precipitation	21.3 mm (0.8 in)	16 of 100 (Routine)
Queenstown	South Africa	Record daily precipitation	6.9 mm (0.27 in)	15 of 100 (Routine)
Dubuque River	United States	Record low maximum temperature	11.7 C (53.1 F)	14 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low maximum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Herschel	South Africa	Record daily precipitation	17.3 mm (0.7 in)	13 of 100 (Routine)
Washington	United States	Record low minimum temperature	6.1 C (43.0 F)	13 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	9.4 C (48.9 F)	12 of 100 (Routine)
Concordia ASOS	United States	Record low maximum temperature	11.1 C (52.0 F)	12 of 100 (Routine)
Boggabri Post Office	Australia	Record daily precipitation	0.3 mm (0.01 in)	11 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	11.1 C (52.0 F)	11 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record low minimum temperature	7.2 C (45.0 F)	11 of 100 (Routine)
Colesberg (Tnk)	South Africa	Record daily precipitation	14.0 mm (0.6 in)	11 of 100 (Routine)
Aliwal North	South Africa	Record daily precipitation	14.2 mm (0.6 in)	11 of 100 (Routine)
Walgett Council Depot	Australia	Record low maximum temperature	14.1 C (57.4 F)	10 of 100 (Routine)
Portarlington	Australia	Record daily precipitation	5.1 mm (0.20 in)	10 of 100 (Routine)
Southampton	Canada	Record low minimum temperature	0.0 C (32.0 F)	10 of 100 (Routine)
Gavle	Sweden	Record low minimum temperature	-2.5 C (27.5 F)	10 of 100 (Routine)
Concord	United States	Record low minimum temperature	2.2 C (36.0 F)	10 of 100 (Routine)
Baltimore Customs House	United States	Record low minimum temperature	8.3 C (46.9 F)	10 of 100 (Routine)
Sveg	Sweden	Record low minimum temperature	-6.5 C (20.3 F)	9 of 100 (Routine)
Quorn (Olive Grove)	Australia	Record daily precipitation	9.4 mm (0.37 in)	8 of 100 (Routine)
Ellesmere	South Africa	Record daily precipitation	11.2 mm (0.4 in)	8 of 100 (Routine)
Gravenhurst	Canada	Record low minimum temperature	-3.3 C (26.1 F)	7 of 100 (Routine)
Kiev	Ukraine	Record high maximum temperature	30.3 C (86.5 F)	6 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record high minimum temperature	14.2 C (57.6 F)	5 of 100 (Routine)
Warburton	Australia	Record daily precipitation	18.3 mm (0.7 in)	3 of 100 (Routine)
Coranderrk Badger Weir	Australia	Record daily precipitation	7.6 mm (0.30 in)	3 of 100 (Routine)
Cape May 2 NW	United States	Record low minimum temperature	8.9 C (48.0 F)	3 of 100 (Routine)
Huron Rgnl AP	United States	Record low maximum temperature	7.8 C (46.0 F)	3 of 100 (Routine)
Bendemeer (Caroline St)	Australia	Record daily precipitation	1.3 mm (0.05 in)	2 of 100 (Routine)
Windsor Riverside	Canada	Record low maximum temperature	12.8 C (55.0 F)	2 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record low minimum temperature	0.0 C (32.0 F)	2 of 100 (Routine)
Vineland	United States	Record low minimum temperature	4.4 C (39.9 F)	2 of 100 (Routine)
Santa Fe	United States	Record low maximum temperature	11.7 C (53.1 F)	2 of 100 (Routine)
Greenville Dwtn AP	United States	Record low maximum temperature	20.0 C (68.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

42 records

Records set or tied on 20 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 13, Highest daily minimum 1, Lowest daily minimum 11, Heaviest daily rainfall 16.

Records on 20 May 1915 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	13
Highest daily minimum	1
Lowest daily minimum	11
Heaviest daily rainfall	16
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 May 1915 by timescale: all-time 0, monthly 2, daily 40.

How Much Records Were Beaten By

33 broken records

Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 16.0. Ties are not counted.

Top 20 by Significance

20 May 1915

Top 20 records on 20 May 1915 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1915	Kew, AU	daily rain	25.1 mm (1.0 in)	16.0 mm (0.6 in)	15 years	38 of 100 (Notable)
20 May 1915	Cradock, ZA	monthly rain	40.6 mm (1.6 in)	7.3 mm (0.29 in)	4 years	24 of 100 (Routine)
20 May 1915	Steynsburg, ZA	daily rain	19.1 mm (0.8 in)	14.5 mm (0.6 in)	22 years	20 of 100 (Routine)
20 May 1915	Gunnedah Pool, AU	daily low max	11.1 C (52.0 F)	4.5 C (8.1 F)	16 years	20 of 100 (Routine)
20 May 1915	Inverell Comparison, AU	monthly low max	8.2 C (46.8 F)	0.1 C (0.2 F)	19 years	19 of 100 (Routine)
20 May 1915	Malin Head, IE	daily rain	11.8 mm (0.5 in)	3.4 mm (0.13 in)	21 years	19 of 100 (Routine)
20 May 1915	Deniliquin (Wilkinson St), AU	daily low max	13.3 C (55.9 F)	1.1 C (2.0 F)	34 years	18 of 100 (Routine)
20 May 1915	Venterstad, ZA	daily rain	21.3 mm (0.8 in)	10.9 mm (0.4 in)	8 years	16 of 100 (Routine)
20 May 1915	Queenstown, ZA	daily rain	6.9 mm (0.27 in)	2.6 mm (0.10 in)	27 years	15 of 100 (Routine)
20 May 1915	Dubuque River, US	daily low max	11.7 C (53.1 F)	1.1 C (2.0 F)	31 years	14 of 100 (Routine)
20 May 1915	Forbes (Camp Street), AU	daily low max	12.2 C (54.0 F)	0.6 C (1.1 F)	29 years	13 of 100 (Routine)
20 May 1915	Herschel, ZA	daily rain	17.3 mm (0.7 in)	8.7 mm (0.34 in)	4 years	13 of 100 (Routine)
20 May 1915	Washington, US	daily low min	6.1 C (43.0 F)	0.6 C (1.1 F)	21 years	13 of 100 (Routine)
20 May 1915	Hamilton, CA	daily low max	9.4 C (48.9 F)	2.3 C (4.1 F)	13 years	12 of 100 (Routine)
20 May 1915	Concordia ASOS, US	daily low max	11.1 C (52.0 F)	2.2 C (4.0 F)	22 years	12 of 100 (Routine)
20 May 1915	Boggabri Post Office, AU	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	29 years	11 of 100 (Routine)
20 May 1915	Bathurst Gaol, AU	daily low max	11.1 C (52.0 F)	0.7 C (1.3 F)	15 years	11 of 100 (Routine)
20 May 1915	Sydney (Observatory Hill), AU	daily low min	7.2 C (45.0 F)	0.1 C (0.2 F)	21 years	11 of 100 (Routine)
20 May 1915	Colesberg (Tnk), ZA	daily rain	14.0 mm (0.6 in)	1.6 mm (0.06 in)	22 years	11 of 100 (Routine)
20 May 1915	Aliwal North, ZA	daily rain	14.2 mm (0.6 in)	2.8 mm (0.11 in)	22 years	11 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 1915

Records set or tied on this calendar date in each year from 1802 to 1915. 1915 had 42 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 1915-05-20: 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).

Margin	Records
0 to 2	20
2 to 4	7
4 to 6	1
6 to 8	1
8 to 10	1
10 to 12	1
12 to 14	0
14 to 16	2