Weather Records on 21 April 1921

59 weather records were set or tied worldwide on 21 April 1921. Highest significance: Minnedosa, CA.

Key Facts for 21 April 1921

On 21 April 1921, 59 weather records were set or tied at long-record stations worldwide.
20 were record highs and 8 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 59 daily.
Minnedosa set a daily record snowfall of 17.8 cm (7.0 in) on 21 April 1921.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

59 stations

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

Weather records on 21 April 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Minnedosa	Canada	Record daily snowfall	17.8 cm (7.0 in)	49 of 100 (Notable)
Somerset East	South Africa	Record daily precipitation	35.6 mm (1.4 in)	37 of 100 (Notable)
Brandon Cda	Canada	Record daily snowfall	15.2 cm (6.0 in)	31 of 100 (Routine)
Owen Sound	Canada	Record daily precipitation	25.1 mm (1.0 in)	31 of 100 (Routine)
Astoria	United States	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Qu'appelle	Canada	Record daily snowfall	11.7 cm (4.6 in)	26 of 100 (Routine)
Battleford	Canada	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Minnedosa	Canada	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Beaufort West (Met)	South Africa	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Brandon Cda	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Aberdeen (Tnk)	South Africa	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Winterhoek	South Africa	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Qu'appelle	Canada	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Hopetown (Tnk)	South Africa	Record daily precipitation	8.9 mm (0.35 in)	18 of 100 (Routine)
Stuttgart	United States	Record daily precipitation	33.3 mm (1.3 in)	18 of 100 (Routine)
Setauket Strong	United States	Record high minimum temperature	11.1 C (52.0 F)	17 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	8.9 C (48.0 F)	16 of 100 (Routine)
Alicedale	South Africa	Record daily precipitation	9.4 mm (0.37 in)	16 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	8.9 C (48.0 F)	15 of 100 (Routine)
Kendrew Estates	South Africa	Record daily precipitation	10.9 mm (0.4 in)	15 of 100 (Routine)
Bakensrug	South Africa	Record daily precipitation	10.2 mm (0.4 in)	15 of 100 (Routine)
Roodebloem	South Africa	Record daily precipitation	9.1 mm (0.36 in)	15 of 100 (Routine)
Prescott 2 NNW	United States	Record daily precipitation	33.0 mm (1.3 in)	15 of 100 (Routine)
St Albans	Canada	Record low maximum temperature	0.0 C (32.0 F)	14 of 100 (Routine)
Brandon Cda	Canada	Record low maximum temperature	0.6 C (33.1 F)	13 of 100 (Routine)
Paris	Canada	Record high minimum temperature	14.4 C (57.9 F)	13 of 100 (Routine)
Biskra	Algeria	Record daily precipitation	14.3 mm (0.6 in)	12 of 100 (Routine)
Cottbus	Germany	Record low minimum temperature	-2.5 C (27.5 F)	12 of 100 (Routine)
Syktyvkar	Russia	Record high minimum temperature	5.3 C (41.5 F)	12 of 100 (Routine)
Jakutsk	Russia	Record high minimum temperature	-2.8 C (27.0 F)	12 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	13.3 C (55.9 F)	12 of 100 (Routine)
Burlington	United States	Record daily precipitation	21.1 mm (0.8 in)	12 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record low maximum temperature	14.0 C (57.2 F)	11 of 100 (Routine)
Biskra	Algeria	Record low maximum temperature	17.0 C (62.6 F)	11 of 100 (Routine)
Moose Factory	Canada	Record low maximum temperature	-3.3 C (26.1 F)	11 of 100 (Routine)
London South	Canada	Record daily precipitation	26.2 mm (1.0 in)	11 of 100 (Routine)
Emerald Post Office	Australia	Record high maximum temperature	32.2 C (90.0 F)	10 of 100 (Routine)
Nieu-Bethesda (Pol)	South Africa	Record daily precipitation	11.4 mm (0.4 in)	10 of 100 (Routine)
Alma	United States	Record high minimum temperature	10.6 C (51.1 F)	10 of 100 (Routine)
Kirov	Russia	Record high minimum temperature	6.5 C (43.7 F)	9 of 100 (Routine)
Walsingham 1	South Africa	Record daily precipitation	11.4 mm (0.4 in)	9 of 100 (Routine)
Berlin-Dahlem	Germany	Record low minimum temperature	-1.0 C (30.2 F)	8 of 100 (Routine)
Ekaterinburg	Russia	Record high maximum temperature	19.9 C (67.8 F)	8 of 100 (Routine)
Arhangelsk	Russia	Record high minimum temperature	5.7 C (42.3 F)	6 of 100 (Routine)
Kargopol	Russia	Record high minimum temperature	8.7 C (47.7 F)	6 of 100 (Routine)
Tobolsk	Russia	Record high minimum temperature	5.8 C (42.4 F)	6 of 100 (Routine)
Britstown (Pol)	South Africa	Record daily precipitation	9.4 mm (0.37 in)	6 of 100 (Routine)
Orleansville (Chlef)	Algeria	Record low maximum temperature	18.0 C (64.4 F)	3 of 100 (Routine)
Lindsay	Canada	Record high minimum temperature	7.2 C (45.0 F)	3 of 100 (Routine)
Buffelsfontein 14	South Africa	Record daily precipitation	11.4 mm (0.4 in)	3 of 100 (Routine)
Blue Hill Coop	United States	Record high minimum temperature	10.6 C (51.1 F)	3 of 100 (Routine)
Ny City Cntrl Park	United States	Record high maximum temperature	25.6 C (78.1 F)	3 of 100 (Routine)
Prince Albert	Canada	Record daily precipitation	10.2 mm (0.4 in)	2 of 100 (Routine)
Prince Albert	Canada	Record daily snowfall	10.2 cm (4.0 in)	2 of 100 (Routine)
Nicosia	Cyprus	Record high minimum temperature	14.4 C (57.9 F)	2 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	4.4 C (39.9 F)	2 of 100 (Routine)
Cape Norman	Canada	Record daily snowfall	2.5 cm (1.0 in)	1 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	29.4 C (84.9 F)	1 of 100 (Routine)
Columbia Wb City	United States	Record daily precipitation	18.5 mm (0.7 in)	1 of 100 (Routine)

Counts by Type and Timescale

59 records

Records set or tied on 21 April 1921 by type: Highest daily maximum 4, Lowest daily maximum 6, Highest daily minimum 16, Lowest daily minimum 2, Heaviest daily rainfall 26, Heaviest daily snowfall 5.

Records on 21 April 1921 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	6
Highest daily minimum	16
Lowest daily minimum	2
Heaviest daily rainfall	26
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 21 April 1921 by timescale: all-time 0, monthly 0, daily 59.

How Much Records Were Beaten By

48 broken records

Margins by which the 48 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.0. Ties are not counted.

Top 20 by Significance

21 April 1921

Top 20 records on 21 April 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1921	Minnedosa, CA	daily snowfall	17.8 cm (7.0 in)	15.3 cm (6.0 in)	35 years	49 of 100 (Notable)
21 April 1921	Somerset East, ZA	daily rain	35.6 mm (1.4 in)	21.9 mm (0.9 in)	33 years	37 of 100 (Notable)
21 April 1921	Brandon Cda, CA	daily snowfall	15.2 cm (6.0 in)	13.9 cm (5.5 in)	0 years	31 of 100 (Routine)
21 April 1921	Owen Sound, CA	daily rain	25.1 mm (1.0 in)	11.9 mm (0.5 in)	26 years	31 of 100 (Routine)
21 April 1921	Astoria, US	daily rain	50.8 mm (2.0 in)	20.3 mm (0.8 in)	18 years	27 of 100 (Routine)
21 April 1921	Qu'appelle, CA	daily snowfall	11.7 cm (4.6 in)	11.4 cm (4.5 in)	19 years	26 of 100 (Routine)
21 April 1921	Battleford, CA	daily rain	8.6 mm (0.34 in)	7.1 mm (0.28 in)	3 years	20 of 100 (Routine)
21 April 1921	Minnedosa, CA	daily rain	17.8 mm (0.7 in)	8.7 mm (0.34 in)	29 years	20 of 100 (Routine)
21 April 1921	Beaufort West (Met), ZA	daily rain	13.5 mm (0.5 in)	8.9 mm (0.35 in)	33 years	20 of 100 (Routine)
21 April 1921	Brandon Cda, CA	daily rain	15.2 mm (0.6 in)	7.6 mm (0.30 in)	29 years	20 of 100 (Routine)
21 April 1921	Aberdeen (Tnk), ZA	daily rain	20.3 mm (0.8 in)	10.4 mm (0.4 in)	29 years	20 of 100 (Routine)
21 April 1921	Winterhoek, ZA	daily rain	8.9 mm (0.35 in)	8.9 mm (0.35 in)	29 years	20 of 100 (Routine)
21 April 1921	Qu'appelle, CA	daily rain	13.2 mm (0.5 in)	4.1 mm (0.16 in)	30 years	20 of 100 (Routine)
21 April 1921	Hopetown (Tnk), ZA	daily rain	8.9 mm (0.35 in)	3.8 mm (0.15 in)	34 years	18 of 100 (Routine)
21 April 1921	Stuttgart, US	daily rain	33.3 mm (1.3 in)	18.1 mm (0.7 in)	15 years	18 of 100 (Routine)
21 April 1921	Setauket Strong, US	daily high min	11.1 C (52.0 F)	1.7 C (3.1 F)	31 years	17 of 100 (Routine)
21 April 1921	Woodstock, CA	daily high min	8.9 C (48.0 F)	0.6 C (1.1 F)	35 years	16 of 100 (Routine)
21 April 1921	Alicedale, ZA	daily rain	9.4 mm (0.37 in)	2.3 mm (0.09 in)	33 years	16 of 100 (Routine)
21 April 1921	Guelph Oac, CA	daily high min	8.9 C (48.0 F)	0.6 C (1.1 F)	35 years	15 of 100 (Routine)
21 April 1921	Kendrew Estates, ZA	daily rain	10.9 mm (0.4 in)	6.1 mm (0.24 in)	11 years	15 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 1921

Records set or tied on this calendar date in each year from 1793 to 1921. 1921 had 59 records.

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

Records on 04-21 in each year
Year	Records
1793	1
1814	1
1820	1
1838	1
1849	2
1851	1
1852	3
1854	1
1858	3
1861	2
1865	3
1866	1
1868	1
1870	1
1875	4
1876	2
1877	1
1879	3
1880	1
1881	1
1882	1
1884	1
1885	2
1888	1
1890	1
1891	1
1892	1
1893	2
1894	4
1895	1
1897	1
1898	2
1899	2
1900	7
1901	17
1902	7
1903	3
1904	10
1905	18
1906	5
1907	17
1908	25
1909	20
1910	33
1911	9
1912	22
1913	14
1914	220
1915	24
1916	64
1917	48
1918	84
1919	31
1920	85
1921	59
1922	70
1923	223
1924	119
1925	295
1926	148
1927	284
1928	269
1929	193
1930	127
1931	358
1932	304
1933	201
1934	497
1935	266
1936	277
1937	416
1938	295
1939	110
1940	462
1941	306
1942	285
1943	481
1944	261
1945	367
1946	448
1947	459
1948	365
1949	448
1950	529
1951	884
1952	665
1953	640
1954	527
1955	607
1956	497
1957	824
1958	329
1959	505
1960	889
1961	647
1962	319
1963	778
1964	1,125
1965	658
1966	756
1967	903
1968	655
1969	388
1970	728
1971	546
1972	593
1973	1,163
1974	528
1975	360
1976	452
1977	854
1978	735
1979	449
1980	1,934
1981	944
1982	1,075
1983	1,366
1984	1,231
1985	1,245
1986	977
1987	1,290
1988	898
1989	1,557
1990	1,463
1991	1,291
1992	1,763
1993	847
1994	859
1995	1,476
1996	788
1997	964
1998	876
1999	752
2000	921
2001	967
2002	1,312
2003	607
2004	586
2005	693
2006	761
2007	480
2008	1,327
2009	983
2010	805
2011	1,053
2012	687
2013	1,015
2014	393
2015	621
2016	587
2017	797
2018	862
2019	731
2020	397
2021	1,608
2022	433
2023	887
2024	754
2025	506
2026	853

Download the Data

Data for records on 1921-04-21: 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).

Margin	Records
0 to 20	43
20 to 40	2
40 to 60	0
60 to 80	0
80 to 100	0
100 to 120	1
120 to 140	1
140 to 160	1