Weather Records on 21 June 1915

40 weather records were set or tied worldwide on 21 June 1915. Highest significance: Ekaterinburg, RU.

Key Facts for 21 June 1915

On 21 June 1915, 40 weather records were set or tied at long-record stations worldwide.
4 were record highs and 20 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 0 monthly and 39 daily.
Ekaterinburg set a daily record precipitation of 47.0 mm (1.9 in) on 21 June 1915.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 433 records.

Record Map

40 stations

40 station records on 21 June 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 June 1915: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ekaterinburg	Russia	Record daily precipitation	47.0 mm (1.9 in)	51 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record low minimum temperature	6.3 C (43.3 F)	42 of 100 (Notable)
Bird Rocks	Canada	Record daily precipitation	76.2 mm (3.0 in)	34 of 100 (Routine)
Cudal Post Office	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Sydney	Canada	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Sveg	Sweden	Record low maximum temperature	9.0 C (48.2 F)	20 of 100 (Routine)
Peterborough	Canada	Record low minimum temperature	6.1 C (43.0 F)	19 of 100 (Routine)
Jokkmokk	Sweden	Record low minimum temperature	0.3 C (32.5 F)	18 of 100 (Routine)
Arnsberg	Germany	Record low minimum temperature	4.4 C (39.9 F)	17 of 100 (Routine)
Barellan Post Office	Australia	Record daily precipitation	10.7 mm (0.4 in)	16 of 100 (Routine)
Ottawa	Canada	Record low minimum temperature	8.3 C (46.9 F)	16 of 100 (Routine)
Alicedale	South Africa	Record daily precipitation	2.5 mm (0.10 in)	16 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record low maximum temperature	8.8 C (47.8 F)	15 of 100 (Routine)
Round Hill	Australia	Record daily precipitation	29.5 mm (1.2 in)	14 of 100 (Routine)
Victoria Valley	Australia	Record daily precipitation	16.5 mm (0.6 in)	13 of 100 (Routine)
Karlsruhe	Germany	Record low minimum temperature	7.5 C (45.5 F)	13 of 100 (Routine)
Chemnitz	Germany	Record low minimum temperature	4.9 C (40.8 F)	13 of 100 (Routine)
Hogsback (Bos)	South Africa	Record daily precipitation	9.1 mm (0.36 in)	13 of 100 (Routine)
Little Rock St Capitol	United States	Record high maximum temperature	36.7 C (98.1 F)	13 of 100 (Routine)
Cavendish (Post Office)	Australia	Record daily precipitation	15.7 mm (0.6 in)	12 of 100 (Routine)
Pitea	Sweden	Record daily precipitation	4.7 mm (0.19 in)	12 of 100 (Routine)
Karesuando	Sweden	Record low minimum temperature	0.5 C (32.9 F)	12 of 100 (Routine)
Parnu	Estonia	Record low minimum temperature	4.7 C (40.5 F)	11 of 100 (Routine)
Freiburg	Germany	Record low minimum temperature	8.8 C (47.8 F)	11 of 100 (Routine)
Karesuando	Sweden	Record daily precipitation	1.9 mm (0.07 in)	11 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record low minimum temperature	1.7 C (35.1 F)	10 of 100 (Routine)
Kristianstad	Sweden	Record low minimum temperature	6.0 C (42.8 F)	10 of 100 (Routine)
Bjuraker	Sweden	Record low maximum temperature	11.9 C (53.4 F)	9 of 100 (Routine)
Hambantota	Sri Lanka	Record high minimum temperature	25.9 C (78.6 F)	8 of 100 (Routine)
Harnosand	Sweden	Record low maximum temperature	11.0 C (51.8 F)	8 of 100 (Routine)
Harnosand	Sweden	Record low minimum temperature	2.5 C (36.5 F)	8 of 100 (Routine)
Escanaba	United States	Record daily precipitation	14.2 mm (0.6 in)	8 of 100 (Routine)
Bird Rocks	Canada	Record low maximum temperature	8.3 C (46.9 F)	7 of 100 (Routine)
Cullendale	South Africa	Record daily precipitation	2.8 mm (0.11 in)	7 of 100 (Routine)
Wilmington Wb City	United States	Record high maximum temperature	34.4 C (93.9 F)	7 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record low minimum temperature	1.2 C (34.2 F)	6 of 100 (Routine)
Millicent	Australia	Record daily precipitation	20.1 mm (0.8 in)	5 of 100 (Routine)
Magdeburg	Germany	Record low minimum temperature	6.9 C (44.4 F)	5 of 100 (Routine)
Walsingham 1	South Africa	Record daily precipitation	5.3 mm (0.21 in)	4 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high maximum temperature	34.0 C (93.2 F)	2 of 100 (Routine)

Counts by Type and Timescale

40 records

Records set or tied on 21 June 1915 by type: Highest daily maximum 3, Lowest daily maximum 5, Highest daily minimum 1, Lowest daily minimum 15, Heaviest daily rainfall 16.

Records on 21 June 1915 by type
Record type	Records
Highest daily maximum	3
Lowest daily maximum	5
Highest daily minimum	1
Lowest daily minimum	15
Heaviest daily rainfall	16
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 June 1915 by timescale: all-time 1, monthly 0, daily 39.

How Much Records Were Beaten By

39 broken records

Margins by which the 39 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 29.8. Ties are not counted.

Top 20 by Significance

21 June 1915

Top 20 records on 21 June 1915 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 June 1915	Ekaterinburg, RU	daily rain	47.0 mm (1.9 in)	29.8 mm (1.2 in)	28 years	51 of 100 (Notable)
21 June 1915	Praha-Klementinum, CZ	daily low min	6.3 C (43.3 F)	1.2 C (2.2 F)	93 years	42 of 100 (Notable)
21 June 1915	Bird Rocks, CA	all-time rain	76.2 mm (3.0 in)	3.0 mm (0.12 in)	23 years	34 of 100 (Routine)
21 June 1915	Cudal Post Office, AU	daily rain	19.1 mm (0.8 in)	13.0 mm (0.5 in)	13 years	20 of 100 (Routine)
21 June 1915	Sydney, CA	daily rain	17.8 mm (0.7 in)	3.3 mm (0.13 in)	44 years	20 of 100 (Routine)
21 June 1915	Sveg, SE	daily low max	9.0 C (48.2 F)	5.5 C (9.9 F)	21 years	20 of 100 (Routine)
21 June 1915	Peterborough, CA	daily low min	6.1 C (43.0 F)	0.6 C (1.1 F)	43 years	19 of 100 (Routine)
21 June 1915	Jokkmokk, SE	daily low min	0.3 C (32.5 F)	2.7 C (4.9 F)	29 years	18 of 100 (Routine)
21 June 1915	Arnsberg, DE	daily low min	4.4 C (39.9 F)	2.8 C (5.0 F)	17 years	17 of 100 (Routine)
21 June 1915	Barellan Post Office, AU	daily rain	10.7 mm (0.4 in)	3.3 mm (0.13 in)	26 years	16 of 100 (Routine)
21 June 1915	Ottawa, CA	daily low min	8.3 C (46.9 F)	1.7 C (3.1 F)	28 years	16 of 100 (Routine)
21 June 1915	Alicedale, ZA	daily rain	2.5 mm (0.10 in)	2.5 mm (0.10 in)	36 years	16 of 100 (Routine)
21 June 1915	Oestersund-Froesoen, SE	daily low max	8.8 C (47.8 F)	3.7 C (6.7 F)	21 years	15 of 100 (Routine)
21 June 1915	Round Hill, AU	daily rain	29.5 mm (1.2 in)	2.1 mm (0.08 in)	27 years	14 of 100 (Routine)
21 June 1915	Victoria Valley, AU	daily rain	16.5 mm (0.6 in)	3.0 mm (0.12 in)	22 years	13 of 100 (Routine)
21 June 1915	Karlsruhe, DE	daily low min	7.5 C (45.5 F)	0.5 C (0.9 F)	27 years	13 of 100 (Routine)
21 June 1915	Chemnitz, DE	daily low min	4.9 C (40.8 F)	1.7 C (3.1 F)	17 years	13 of 100 (Routine)
21 June 1915	Hogsback (Bos), ZA	daily rain	9.1 mm (0.36 in)	7.8 mm (0.31 in)	12 years	13 of 100 (Routine)
21 June 1915	Little Rock St Capitol, US	daily high max	36.7 C (98.1 F)	0.6 C (1.1 F)	31 years	13 of 100 (Routine)
21 June 1915	Cavendish (Post Office), AU	daily rain	15.7 mm (0.6 in)	5.5 mm (0.22 in)	5 years	12 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 40 records.

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

Records on 06-21 in each year
Year	Records
1802	1
1803	2
1805	1
1814	1
1821	3
1828	1
1831	1
1839	2
1846	1
1853	1
1855	1
1861	3
1865	1
1868	1
1869	4
1870	3
1871	1
1873	1
1874	1
1875	2
1879	1
1880	1
1881	1
1882	1
1883	1
1884	2
1885	1
1886	3
1887	1
1888	3
1889	1
1891	1
1892	2
1893	7
1895	6
1896	3
1897	3
1898	6
1899	6
1900	6
1901	5
1902	20
1903	15
1904	7
1905	14
1906	19
1907	15
1908	20
1909	19
1910	36
1911	12
1912	14
1913	34
1914	24
1915	40
1916	80
1917	97
1918	77
1919	32
1920	42
1921	85
1922	43
1923	229
1924	124
1925	333
1926	162
1927	146
1928	139
1929	84
1930	177
1931	340
1932	180
1933	645
1934	223
1935	247
1936	642
1937	475
1938	396
1939	250
1940	674
1941	401
1942	340
1943	439
1944	426
1945	709
1946	386
1947	637
1948	392
1949	391
1950	329
1951	347
1952	502
1953	761
1954	501
1955	271
1956	534
1957	932
1958	627
1959	356
1960	471
1961	956
1962	176
1963	667
1964	458
1965	400
1966	467
1967	789
1968	654
1969	687
1970	614
1971	394
1972	934
1973	683
1974	598
1975	996
1976	746
1977	476
1978	368
1979	857
1980	677
1981	889
1982	658
1983	752
1984	913
1985	516
1986	601
1987	940
1988	1,834
1989	856
1990	847
1991	1,067
1992	1,679
1993	939
1994	777
1995	978
1996	1,075
1997	1,037
1998	1,746
1999	994
2000	1,212
2001	658
2002	828
2003	1,034
2004	697
2005	1,090
2006	774
2007	1,085
2008	580
2009	1,060
2010	852
2011	1,340
2012	1,151
2013	571
2014	434
2015	707
2016	877
2017	954
2018	577
2019	969
2020	519
2021	1,132
2022	774
2023	987
2024	679
2025	1,536
2026	736

Download the Data

Data for records on 1915-06-21: 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	34
5 to 10	3
10 to 15	1
15 to 20	0
20 to 25	0
25 to 30	1