Weather Records on 21 June 1921

85 weather records were set or tied worldwide on 21 June 1921. Highest significance: Piketberg (Pol), ZA.

Key Facts for 21 June 1921

On 21 June 1921, 85 weather records were set or tied at long-record stations worldwide.
13 were record highs and 46 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 85 daily.
Piketberg (Pol) set a daily record precipitation of 35.3 mm (1.4 in) on 21 June 1921.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 433 records.

Record Map

85 stations

85 station records on 21 June 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 June 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Piketberg (Pol)	South Africa	Record daily precipitation	35.3 mm (1.4 in)	32 of 100 (Routine)
Sonnblick	Austria	Record low minimum temperature	-12.2 C (10.0 F)	25 of 100 (Routine)
Sacramento 5 ESE	United States	Record high minimum temperature	22.2 C (72.0 F)	21 of 100 (Routine)
Oudtshoorn	South Africa	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Karesuando	Sweden	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Berlin-Dahlem	Germany	Record daily precipitation	23.3 mm (0.9 in)	20 of 100 (Routine)
Ladismith (Tnk)	South Africa	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Bakensrug	South Africa	Record daily precipitation	9.4 mm (0.37 in)	20 of 100 (Routine)
Roodebloem	South Africa	Record daily precipitation	5.3 mm (0.21 in)	20 of 100 (Routine)
Riversdale	South Africa	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Halmstad	Sweden	Record low maximum temperature	12.5 C (54.5 F)	20 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	40.0 C (104.0 F)	20 of 100 (Routine)
Welland	Canada	Record high maximum temperature	31.1 C (88.0 F)	19 of 100 (Routine)
Nordby (Fano)	Denmark	Record low minimum temperature	6.2 C (43.2 F)	19 of 100 (Routine)
Knysna (Tnk)	South Africa	Record daily precipitation	25.4 mm (1.0 in)	19 of 100 (Routine)
Beaufort West (Met)	South Africa	Record daily precipitation	8.6 mm (0.34 in)	19 of 100 (Routine)
Kremsmuenster	Austria	Record low minimum temperature	6.8 C (44.2 F)	18 of 100 (Routine)
Berlin-Dahlem	Germany	Record low maximum temperature	13.6 C (56.5 F)	18 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record low minimum temperature	5.0 C (41.0 F)	18 of 100 (Routine)
Hohenpeissenberg	Germany	Record low minimum temperature	0.6 C (33.1 F)	18 of 100 (Routine)
Palermo	Italy	Record daily precipitation	8.9 mm (0.35 in)	18 of 100 (Routine)
Malmesbury	South Africa	Record daily precipitation	27.2 mm (1.1 in)	18 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record low maximum temperature	13.2 C (55.8 F)	17 of 100 (Routine)
Harkerville (Bos)	South Africa	Record daily precipitation	37.6 mm (1.5 in)	17 of 100 (Routine)
Robertson	South Africa	Record daily precipitation	16.5 mm (0.6 in)	17 of 100 (Routine)
Millwood (Bos)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	17 of 100 (Routine)
Saentis	Switzerland	Record low minimum temperature	-6.3 C (20.7 F)	17 of 100 (Routine)
East Toorale (Toorale Station)	Australia	Record daily precipitation	24.4 mm (1.0 in)	16 of 100 (Routine)
Tranebjerg	Denmark	Record low minimum temperature	5.0 C (41.0 F)	16 of 100 (Routine)
Freiburg	Germany	Record low maximum temperature	13.0 C (55.4 F)	16 of 100 (Routine)
Montagu (Pol)	South Africa	Record daily precipitation	20.6 mm (0.8 in)	16 of 100 (Routine)
Santa Fe	United States	Record low minimum temperature	5.6 C (42.1 F)	16 of 100 (Routine)
Paris	Canada	Record high maximum temperature	33.3 C (91.9 F)	15 of 100 (Routine)
Schwerin	Germany	Record low maximum temperature	14.4 C (57.9 F)	14 of 100 (Routine)
Cottbus	Germany	Record low maximum temperature	13.9 C (57.0 F)	14 of 100 (Routine)
Weldon	United States	Record low minimum temperature	10.6 C (51.1 F)	14 of 100 (Routine)
Milwaukee Wb City	United States	Record high minimum temperature	20.6 C (69.1 F)	14 of 100 (Routine)
Salzburg	Austria	Record low minimum temperature	5.0 C (41.0 F)	13 of 100 (Routine)
Husum	Germany	Record low maximum temperature	13.8 C (56.8 F)	13 of 100 (Routine)
Stratford	Canada	Record high maximum temperature	32.2 C (90.0 F)	12 of 100 (Routine)
Steinkopf (Pol)	South Africa	Record daily precipitation	27.4 mm (1.1 in)	12 of 100 (Routine)
Constantine	Algeria	Record low maximum temperature	19.0 C (66.2 F)	11 of 100 (Routine)
Magdeburg	Germany	Record low maximum temperature	14.5 C (58.1 F)	11 of 100 (Routine)
Little Rock St Capitol	United States	Record daily precipitation	14.5 mm (0.6 in)	11 of 100 (Routine)
Green Bay	United States	Record high maximum temperature	32.2 C (90.0 F)	11 of 100 (Routine)
Wien	Austria	Record low minimum temperature	7.0 C (44.6 F)	10 of 100 (Routine)
London South	Canada	Record high maximum temperature	33.9 C (93.0 F)	10 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record low minimum temperature	6.5 C (43.7 F)	10 of 100 (Routine)
Plauen	Germany	Record low maximum temperature	11.7 C (53.1 F)	10 of 100 (Routine)
Tulbagh (Pol)	South Africa	Record daily precipitation	22.1 mm (0.9 in)	10 of 100 (Routine)
Boras	Sweden	Record low maximum temperature	11.0 C (51.8 F)	10 of 100 (Routine)
Muenster	Germany	Record low maximum temperature	14.4 C (57.9 F)	9 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record low maximum temperature	7.8 C (46.0 F)	9 of 100 (Routine)
White River	Canada	Record high maximum temperature	32.2 C (90.0 F)	8 of 100 (Routine)
Ottawa Cda	Canada	Record high maximum temperature	32.2 C (90.0 F)	8 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record low maximum temperature	13.1 C (55.6 F)	8 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record low minimum temperature	6.0 C (42.8 F)	8 of 100 (Routine)
Altastenberg	Germany	Record low maximum temperature	7.3 C (45.1 F)	8 of 100 (Routine)
Altastenberg	Germany	Record low minimum temperature	1.9 C (35.4 F)	8 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record low minimum temperature	3.2 C (37.8 F)	8 of 100 (Routine)

Counts by Type and Timescale

85 records

Records set or tied on 21 June 1921 by type: Highest daily maximum 11, Lowest daily maximum 25, Highest daily minimum 2, Lowest daily minimum 21, Heaviest daily rainfall 26.

Records on 21 June 1921 by type
Record type	Records
Highest daily maximum	11
Lowest daily maximum	25
Highest daily minimum	2
Lowest daily minimum	21
Heaviest daily rainfall	26
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 June 1921 by timescale: all-time 0, monthly 0, daily 85.

How Much Records Were Beaten By

77 broken records

Margins by which the 77 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 21.6. Ties are not counted.

Top 20 by Significance

21 June 1921

Top 20 records on 21 June 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 June 1921	Piketberg (Pol), ZA	daily rain	35.3 mm (1.4 in)	18.0 mm (0.7 in)	28 years	32 of 100 (Routine)
21 June 1921	Sonnblick, AT	daily low min	-12.2 C (10.0 F)	4.4 C (7.9 F)	26 years	25 of 100 (Routine)
21 June 1921	Sacramento 5 ESE, US	daily high min	22.2 C (72.0 F)	3.3 C (5.9 F)	21 years	21 of 100 (Routine)
21 June 1921	Oudtshoorn, ZA	daily rain	23.6 mm (0.9 in)	21.6 mm (0.9 in)	31 years	20 of 100 (Routine)
21 June 1921	Karesuando, SE	daily rain	12.2 mm (0.5 in)	10.3 mm (0.4 in)	6 years	20 of 100 (Routine)
21 June 1921	Berlin-Dahlem, DE	daily rain	23.3 mm (0.9 in)	11.0 mm (0.4 in)	20 years	20 of 100 (Routine)
21 June 1921	Ladismith (Tnk), ZA	daily rain	21.1 mm (0.8 in)	13.0 mm (0.5 in)	15 years	20 of 100 (Routine)
21 June 1921	Bakensrug, ZA	daily rain	9.4 mm (0.37 in)	8.9 mm (0.35 in)	18 years	20 of 100 (Routine)
21 June 1921	Roodebloem, ZA	daily rain	5.3 mm (0.21 in)	5.3 mm (0.21 in)	32 years	20 of 100 (Routine)
21 June 1921	Riversdale, ZA	daily rain	17.8 mm (0.7 in)	8.7 mm (0.34 in)	28 years	20 of 100 (Routine)
21 June 1921	Halmstad, SE	daily low max	12.5 C (54.5 F)	2.5 C (4.5 F)	35 years	20 of 100 (Routine)
21 June 1921	Sacramento 5 ESE, US	daily high max	40.0 C (104.0 F)	3.3 C (5.9 F)	33 years	20 of 100 (Routine)
21 June 1921	Welland, CA	daily high max	31.1 C (88.0 F)	1.1 C (2.0 F)	41 years	19 of 100 (Routine)
21 June 1921	Nordby (Fano), DK	daily low min	6.2 C (43.2 F)	1.2 C (2.2 F)	37 years	19 of 100 (Routine)
21 June 1921	Knysna (Tnk), ZA	daily rain	25.4 mm (1.0 in)	18.0 mm (0.7 in)	3 years	19 of 100 (Routine)
21 June 1921	Beaufort West (Met), ZA	daily rain	8.6 mm (0.34 in)	4.5 mm (0.18 in)	29 years	19 of 100 (Routine)
21 June 1921	Kremsmuenster, AT	daily low min	6.8 C (44.2 F)	0.9 C (1.6 F)	36 years	18 of 100 (Routine)
21 June 1921	Berlin-Dahlem, DE	daily low max	13.6 C (56.5 F)	2.2 C (4.0 F)	33 years	18 of 100 (Routine)
21 June 1921	Munchen-Nymphenburg, DE	daily low min	5.0 C (41.0 F)	1.0 C (1.8 F)	36 years	18 of 100 (Routine)
21 June 1921	Hohenpeissenberg, DE	daily low min	0.6 C (33.1 F)	1.4 C (2.5 F)	36 years	18 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 1921

Records set or tied on this calendar date in each year from 1802 to 1921. 1921 had 85 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 1921-06-21: 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	62
5 to 10	6
10 to 15	5
15 to 20	3
20 to 25	1