Weather Records on 21 October 1921

58 weather records were set or tied worldwide on 21 October 1921. Highest significance: Armagh, GB.

Key Facts for 21 October 1921

On 21 October 1921, 58 weather records were set or tied at long-record stations worldwide.
18 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 58 daily.
Armagh set a daily record precipitation of 28.4 mm (1.1 in) on 21 October 1921.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 422 records.

Record Map

58 stations

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

Weather records on 21 October 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Armagh	United Kingdom	Record daily precipitation	28.4 mm (1.1 in)	46 of 100 (Notable)
Coen Post Office	Australia	Record daily precipitation	56.6 mm (2.2 in)	41 of 100 (Notable)
Qu'appelle	Canada	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Musgrave	Australia	Record daily precipitation	40.1 mm (1.6 in)	30 of 100 (Routine)
Jena Sternwarte	Germany	Record high minimum temperature	11.8 C (53.2 F)	26 of 100 (Routine)
Ft Bidwell	United States	Record high maximum temperature	26.1 C (79.0 F)	21 of 100 (Routine)
Chaplin	Canada	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Malin Head	Ireland	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)
Grenfell	Canada	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Cooktown Post Office	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Brinkworth (Bungaree)	Australia	Record daily precipitation	8.1 mm (0.32 in)	18 of 100 (Routine)
Rupanyup (Lallat Plains)	Australia	Record daily precipitation	14.5 mm (0.6 in)	18 of 100 (Routine)
Rokewood (the Meadows)	Australia	Record daily precipitation	12.2 mm (0.5 in)	18 of 100 (Routine)
Indian Head Cda	Canada	Record daily precipitation	21.8 mm (0.9 in)	18 of 100 (Routine)
Tbilisi	Georgia	Record low minimum temperature	0.1 C (32.2 F)	18 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	22.2 C (72.0 F)	18 of 100 (Routine)
Eversley	Australia	Record daily precipitation	10.4 mm (0.4 in)	17 of 100 (Routine)
Beeac (Eurack)	Australia	Record daily precipitation	16.0 mm (0.6 in)	17 of 100 (Routine)
Holmogadd A	Sweden	Record daily precipitation	18.3 mm (0.7 in)	17 of 100 (Routine)
Wartook Post Office	Australia	Record daily precipitation	10.2 mm (0.4 in)	16 of 100 (Routine)
Crowlands (Woodlands)	Australia	Record daily precipitation	6.1 mm (0.24 in)	15 of 100 (Routine)
Warranooke (Glenorchy)	Australia	Record daily precipitation	11.4 mm (0.4 in)	15 of 100 (Routine)
Grenfell	Canada	Record high minimum temperature	4.4 C (39.9 F)	15 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high minimum temperature	9.0 C (48.2 F)	14 of 100 (Routine)
Arnsberg	Germany	Record high minimum temperature	12.8 C (55.0 F)	14 of 100 (Routine)
Plauen	Germany	Record high minimum temperature	11.9 C (53.4 F)	14 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record high maximum temperature	17.0 C (62.6 F)	14 of 100 (Routine)
Karnak (Rosedale)	Australia	Record daily precipitation	7.4 mm (0.29 in)	13 of 100 (Routine)
Doberlug-Kirchhain	Germany	Record daily precipitation	8.8 mm (0.35 in)	13 of 100 (Routine)
Maytown	Australia	Record daily precipitation	4.1 mm (0.16 in)	12 of 100 (Routine)
Jung Jung	Australia	Record daily precipitation	3.6 mm (0.14 in)	12 of 100 (Routine)
Murtoa	Australia	Record daily precipitation	5.8 mm (0.23 in)	12 of 100 (Routine)
Medicine Hat A	Canada	Record daily precipitation	6.1 mm (0.24 in)	12 of 100 (Routine)
Franklin	United States	Record high maximum temperature	29.4 C (84.9 F)	12 of 100 (Routine)
Wooroonook	Australia	Record daily precipitation	6.4 mm (0.25 in)	11 of 100 (Routine)
Willaura (Yarram Park)	Australia	Record daily precipitation	11.4 mm (0.4 in)	11 of 100 (Routine)
Magdeburg	Germany	Record high minimum temperature	12.0 C (53.6 F)	11 of 100 (Routine)
Gardiner	United States	Record low maximum temperature	6.1 C (43.0 F)	11 of 100 (Routine)
Minnedosa	Canada	Record daily precipitation	4.1 mm (0.16 in)	10 of 100 (Routine)
Plauen	Germany	Record daily precipitation	5.8 mm (0.23 in)	10 of 100 (Routine)
Junsele	Sweden	Record daily precipitation	11.0 mm (0.4 in)	10 of 100 (Routine)
Alice Springs Post Office	Australia	Record low maximum temperature	19.4 C (66.9 F)	9 of 100 (Routine)
St Albans	Canada	Record high minimum temperature	6.1 C (43.0 F)	9 of 100 (Routine)
Chicoutimi	Canada	Record daily precipitation	21.3 mm (0.8 in)	9 of 100 (Routine)
Rokewood (Kuruc A Ruc)	Australia	Record daily precipitation	11.7 mm (0.5 in)	8 of 100 (Routine)
Innisfail	Australia	Record daily precipitation	14.5 mm (0.6 in)	7 of 100 (Routine)
Sydney	Canada	Record high minimum temperature	14.4 C (57.9 F)	7 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record high minimum temperature	12.0 C (53.6 F)	7 of 100 (Routine)
Herberton White St	Australia	Record daily precipitation	2.0 mm (0.08 in)	6 of 100 (Routine)
Bass (Kilcunda)	Australia	Record daily precipitation	19.1 mm (0.8 in)	5 of 100 (Routine)
Prince Albert	Canada	Record high minimum temperature	3.3 C (37.9 F)	5 of 100 (Routine)
Point Escuminac	Canada	Record daily precipitation	16.3 mm (0.6 in)	5 of 100 (Routine)
Needles	United States	Record high maximum temperature	33.9 C (93.0 F)	5 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	11.7 C (53.1 F)	4 of 100 (Routine)
Alma	United States	Record high minimum temperature	13.9 C (57.0 F)	4 of 100 (Routine)
Anticosti SW Point	Canada	Record high minimum temperature	6.1 C (43.0 F)	3 of 100 (Routine)
Brandon Cda	Canada	Record high minimum temperature	4.4 C (39.9 F)	2 of 100 (Routine)
Australia Plains	Australia	Record daily precipitation	0.5 mm (0.02 in)	1 of 100 (Routine)

Counts by Type and Timescale

58 records

Records set or tied on 21 October 1921 by type: Highest daily maximum 5, Lowest daily maximum 3, Highest daily minimum 13, Lowest daily minimum 1, Heaviest daily rainfall 36.

Records on 21 October 1921 by type
Record type	Records
Highest daily maximum	5
Lowest daily maximum	3
Highest daily minimum	13
Lowest daily minimum	1
Heaviest daily rainfall	36
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 October 1921 by timescale: all-time 0, monthly 0, daily 58.

How Much Records Were Beaten By

54 broken records

Margins by which the 54 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 43.1. Ties are not counted.

Top 20 by Significance

21 October 1921

Top 20 records on 21 October 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1921	Armagh, GB	daily rain	28.4 mm (1.1 in)	14.2 mm (0.6 in)	42 years	46 of 100 (Notable)
21 October 1921	Coen Post Office, AU	daily rain	56.6 mm (2.2 in)	43.1 mm (1.7 in)	28 years	41 of 100 (Notable)
21 October 1921	Qu'appelle, CA	daily rain	27.4 mm (1.1 in)	22.3 mm (0.9 in)	8 years	41 of 100 (Notable)
21 October 1921	Musgrave, AU	daily rain	40.1 mm (1.6 in)	34.8 mm (1.4 in)	4 years	30 of 100 (Routine)
21 October 1921	Jena Sternwarte, DE	daily high min	11.8 C (53.2 F)	1.4 C (2.5 F)	46 years	26 of 100 (Routine)
21 October 1921	Ft Bidwell, US	daily high max	26.1 C (79.0 F)	2.8 C (5.0 F)	40 years	21 of 100 (Routine)
21 October 1921	Chaplin, CA	daily rain	21.3 mm (0.8 in)	16.2 mm (0.6 in)	27 years	20 of 100 (Routine)
21 October 1921	Malin Head, IE	daily rain	19.0 mm (0.7 in)	13.4 mm (0.5 in)	19 years	20 of 100 (Routine)
21 October 1921	Grenfell, CA	daily rain	21.6 mm (0.9 in)	17.8 mm (0.7 in)	12 years	20 of 100 (Routine)
21 October 1921	Cooktown Post Office, AU	daily rain	14.0 mm (0.6 in)	13.2 mm (0.5 in)	20 years	20 of 100 (Routine)
21 October 1921	Brinkworth (Bungaree), AU	daily rain	8.1 mm (0.32 in)	3.0 mm (0.12 in)	30 years	18 of 100 (Routine)
21 October 1921	Rupanyup (Lallat Plains), AU	daily rain	14.5 mm (0.6 in)	10.7 mm (0.4 in)	2 years	18 of 100 (Routine)
21 October 1921	Rokewood (the Meadows), AU	daily rain	12.2 mm (0.5 in)	1.5 mm (0.06 in)	36 years	18 of 100 (Routine)
21 October 1921	Indian Head Cda, CA	daily rain	21.8 mm (0.9 in)	12.7 mm (0.5 in)	0 years	18 of 100 (Routine)
21 October 1921	Tbilisi, GE	daily low min	0.1 C (32.2 F)	1.2 C (2.2 F)	36 years	18 of 100 (Routine)
21 October 1921	Santa Fe, US	daily high max	22.2 C (72.0 F)	0.5 C (0.9 F)	45 years	18 of 100 (Routine)
21 October 1921	Eversley, AU	daily rain	10.4 mm (0.4 in)	5.1 mm (0.20 in)	23 years	17 of 100 (Routine)
21 October 1921	Beeac (Eurack), AU	daily rain	16.0 mm (0.6 in)	8.1 mm (0.32 in)	4 years	17 of 100 (Routine)
21 October 1921	Holmogadd A, SE	daily rain	18.3 mm (0.7 in)	3.1 mm (0.12 in)	24 years	17 of 100 (Routine)
21 October 1921	Wartook Post Office, AU	daily rain	10.2 mm (0.4 in)	4.6 mm (0.18 in)	23 years	16 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

1795 to 1921

Records set or tied on this calendar date in each year from 1795 to 1921. 1921 had 58 records.

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

Records on 10-21 in each year
Year	Records
1795	1
1802	2
1805	1
1808	1
1810	1
1834	1
1835	1
1840	1
1845	1
1847	1
1850	1
1851	2
1854	1
1859	1
1863	1
1864	1
1866	3
1867	1
1868	3
1869	2
1871	1
1872	1
1873	1
1874	1
1876	4
1877	2
1878	1
1880	3
1881	1
1883	1
1886	1
1888	2
1889	2
1890	3
1891	6
1892	6
1893	1
1894	1
1895	2
1896	5
1898	6
1899	3
1900	2
1901	9
1902	2
1903	3
1904	30
1905	15
1906	11
1907	35
1908	35
1909	19
1910	21
1911	10
1912	18
1913	59
1914	35
1915	43
1916	70
1917	208
1918	18
1919	102
1920	149
1921	58
1922	78
1923	81
1924	389
1925	150
1926	77
1927	187
1928	78
1929	200
1930	492
1931	217
1932	165
1933	733
1934	407
1935	707
1936	407
1937	132
1938	121
1939	491
1940	537
1941	644
1942	258
1943	421
1944	367
1945	538
1946	297
1947	977
1948	266
1949	1,015
1950	438
1951	382
1952	848
1953	1,579
1954	279
1955	481
1956	276
1957	511
1958	322
1959	410
1960	408
1961	553
1962	359
1963	725
1964	457
1965	465
1966	425
1967	472
1968	174
1969	881
1970	548
1971	498
1972	813
1973	464
1974	866
1975	509
1976	1,467
1977	451
1978	616
1979	1,958
1980	378
1981	667
1982	870
1983	786
1984	1,872
1985	776
1986	814
1987	852
1988	696
1989	1,668
1990	807
1991	877
1992	1,095
1993	845
1994	670
1995	1,120
1996	1,581
1997	915
1998	711
1999	688
2000	771
2001	610
2002	1,241
2003	2,066
2004	1,674
2005	949
2006	1,057
2007	916
2008	610
2009	713
2010	710
2011	662
2012	703
2013	440
2014	716
2015	493
2016	734
2017	750
2018	440
2019	757
2020	1,135
2021	574
2022	629
2023	890
2024	1,138
2025	364

Download the Data

Data for records on 1921-10-21: 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 2026-10-15 (15 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).

Histogram of margins by which records were beaten on 21 October 1921
Margin	Records
0 to 10	44
10 to 20	7
20 to 30	1
30 to 40	1
40 to 50	1