Weather Records on 21 October 1920

149 weather records were set or tied worldwide on 21 October 1920. Highest significance: Isisford Post Office, AU.

Key Facts for 21 October 1920

On 21 October 1920, 149 weather records were set or tied at long-record stations worldwide.
94 were record highs and 10 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 144 daily.
Isisford Post Office set a monthly record daily precipitation of 123.2 mm (4.9 in) on 21 October 1920.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 421 records.

Record Map

149 stations

149 station records on 21 October 1920 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1920: highest significance records shown on the map
Station	Country	Type	Value	Significance
Isisford Post Office	Australia	Record daily precipitation	123.2 mm (4.9 in)	57 of 100 (Notable)
Springsure Comet St	Australia	Record daily precipitation	57.7 mm (2.3 in)	49 of 100 (Notable)
Blackall Township	Australia	Record daily precipitation	120.9 mm (4.8 in)	46 of 100 (Notable)
Camboon Station	Australia	Record daily precipitation	51.6 mm (2.0 in)	45 of 100 (Notable)
Alpha Post Office	Australia	Record daily precipitation	51.1 mm (2.0 in)	43 of 100 (Notable)
Alice Post Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	43 of 100 (Notable)
Taroom Post Office	Australia	Record daily precipitation	49.5 mm (1.9 in)	38 of 100 (Notable)
Bauhinia Downs Store	Australia	Record daily precipitation	40.6 mm (1.6 in)	37 of 100 (Notable)
Augathella Post Office	Australia	Record daily precipitation	59.7 mm (2.4 in)	37 of 100 (Notable)
Roma Post Office	Australia	Record daily precipitation	37.1 mm (1.5 in)	35 of 100 (Notable)
Fulham Park	Australia	Record daily precipitation	33.5 mm (1.3 in)	32 of 100 (Routine)
Newark Liberty Intl AP	United States	Record high maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Stratford	Canada	Record high maximum temperature	25.6 C (78.1 F)	26 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Mount Macedon	Australia	Record daily precipitation	59.7 mm (2.4 in)	23 of 100 (Routine)
Milwaukee Wb City	United States	Record high maximum temperature	27.2 C (81.0 F)	22 of 100 (Routine)
Maneroo	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Turkestan	Kazakhstan	Record daily precipitation	5.9 mm (0.23 in)	20 of 100 (Routine)
Montreal McGill	Canada	Record high maximum temperature	21.7 C (71.1 F)	20 of 100 (Routine)
World Trade Ctr	United States	Record high maximum temperature	26.7 C (80.1 F)	20 of 100 (Routine)
Emerald Post Office	Australia	Record daily precipitation	15.5 mm (0.6 in)	19 of 100 (Routine)
Yanco Glen (Corona Homestead)	Australia	Record daily precipitation	28.4 mm (1.1 in)	19 of 100 (Routine)
Owen Sound	Canada	Record high minimum temperature	15.0 C (59.0 F)	19 of 100 (Routine)
Concord	United States	Record high maximum temperature	27.2 C (81.0 F)	19 of 100 (Routine)
Barcaldine Post Office	Australia	Record daily precipitation	9.1 mm (0.36 in)	18 of 100 (Routine)
Gravenhurst	Canada	Record high maximum temperature	20.6 C (69.1 F)	18 of 100 (Routine)
Gravenhurst	Canada	Record high minimum temperature	12.8 C (55.0 F)	18 of 100 (Routine)
San Diego Wbo	United States	Record low minimum temperature	7.2 C (45.0 F)	18 of 100 (Routine)
State College	United States	Record high maximum temperature	26.1 C (79.0 F)	18 of 100 (Routine)
Lexington Bluegrass AP	United States	Record high minimum temperature	18.3 C (64.9 F)	18 of 100 (Routine)
Beltana	Australia	Record daily precipitation	4.6 mm (0.18 in)	17 of 100 (Routine)
Burra (Poonunda)	Australia	Record daily precipitation	15.7 mm (0.6 in)	17 of 100 (Routine)
Moose Factory	Canada	Record high minimum temperature	12.8 C (55.0 F)	17 of 100 (Routine)
Hamilton	Canada	Record high maximum temperature	26.7 C (80.1 F)	17 of 100 (Routine)
Alma	United States	Record high maximum temperature	28.3 C (82.9 F)	17 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	16.7 C (62.1 F)	17 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	21.1 C (70.0 F)	16 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	14.4 C (57.9 F)	16 of 100 (Routine)
Quebec	Canada	Record daily precipitation	26.4 mm (1.0 in)	16 of 100 (Routine)
Tranebjerg	Denmark	Record low minimum temperature	-2.0 C (28.4 F)	16 of 100 (Routine)
Caledon (Pol)	South Africa	Record daily precipitation	5.6 mm (0.22 in)	16 of 100 (Routine)
Kiev	Ukraine	Record low minimum temperature	-5.8 C (21.6 F)	16 of 100 (Routine)
Uman	Ukraine	Record low minimum temperature	-9.4 C (15.1 F)	16 of 100 (Routine)
Simferopol	Ukraine	Record low minimum temperature	-6.4 C (20.5 F)	16 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	16.7 C (62.1 F)	16 of 100 (Routine)
Madison Wb City	United States	Record high minimum temperature	16.1 C (61.0 F)	16 of 100 (Routine)
Fort National	Algeria	Record daily precipitation	17.0 mm (0.7 in)	15 of 100 (Routine)
Aramac Post Office	Australia	Record daily precipitation	14.2 mm (0.6 in)	15 of 100 (Routine)
Muttaburra	Australia	Record daily precipitation	9.7 mm (0.38 in)	15 of 100 (Routine)
White Cliffs (Tarella)	Australia	Record daily precipitation	17.8 mm (0.7 in)	15 of 100 (Routine)
Lucknow	Canada	Record high minimum temperature	12.8 C (55.0 F)	15 of 100 (Routine)
Guelph Oac	Canada	Record high maximum temperature	23.9 C (75.0 F)	15 of 100 (Routine)
Portland	United States	Record high minimum temperature	12.8 C (55.0 F)	15 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	15.6 C (60.1 F)	15 of 100 (Routine)
Tashkent	Uzbekistan	Record high minimum temperature	11.9 C (53.4 F)	15 of 100 (Routine)
Mitchell Post Office	Australia	Record daily precipitation	18.5 mm (0.7 in)	14 of 100 (Routine)
Beatrice	Canada	Record high minimum temperature	10.6 C (51.1 F)	14 of 100 (Routine)
Halmstad	Sweden	Record low minimum temperature	-4.5 C (23.9 F)	14 of 100 (Routine)
Hawkwood Station	Australia	Record daily precipitation	9.1 mm (0.36 in)	13 of 100 (Routine)

Counts by Type and Timescale

149 records

Records set or tied on 21 October 1920 by type: Highest daily maximum 47, Lowest daily maximum 1, Highest daily minimum 47, Lowest daily minimum 9, Heaviest daily rainfall 45.

Records on 21 October 1920 by type
Record type	Records
Highest daily maximum	47
Lowest daily maximum	1
Highest daily minimum	47
Lowest daily minimum	9
Heaviest daily rainfall	45
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 October 1920 by timescale: all-time 0, monthly 5, daily 144.

How Much Records Were Beaten By

134 broken records

Margins by which the 134 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.9. Ties are not counted.

Top 20 by Significance

21 October 1920

Top 20 records on 21 October 1920 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1920	Isisford Post Office, AU	monthly rain	123.2 mm (4.9 in)	70.9 mm (2.8 in)	16 years	57 of 100 (Notable)
21 October 1920	Springsure Comet St, AU	daily rain	57.7 mm (2.3 in)	50.1 mm (2.0 in)	16 years	49 of 100 (Notable)
21 October 1920	Blackall Township, AU	monthly rain	120.9 mm (4.8 in)	36.1 mm (1.4 in)	14 years	46 of 100 (Notable)
21 October 1920	Camboon Station, AU	daily rain	51.6 mm (2.0 in)	48.6 mm (1.9 in)	13 years	45 of 100 (Notable)
21 October 1920	Alpha Post Office, AU	daily rain	51.1 mm (2.0 in)	45.0 mm (1.8 in)	29 years	43 of 100 (Notable)
21 October 1920	Alice Post Office, AU	daily rain	38.1 mm (1.5 in)	37.1 mm (1.5 in)	21 years	43 of 100 (Notable)
21 October 1920	Taroom Post Office, AU	daily rain	49.5 mm (1.9 in)	28.7 mm (1.1 in)	16 years	38 of 100 (Notable)
21 October 1920	Bauhinia Downs Store, AU	daily rain	40.6 mm (1.6 in)	29.9 mm (1.2 in)	16 years	37 of 100 (Notable)
21 October 1920	Augathella Post Office, AU	monthly rain	59.7 mm (2.4 in)	16.5 mm (0.6 in)	27 years	37 of 100 (Notable)
21 October 1920	Roma Post Office, AU	daily rain	37.1 mm (1.5 in)	26.4 mm (1.0 in)	10 years	35 of 100 (Notable)
21 October 1920	Fulham Park, AU	daily rain	33.5 mm (1.3 in)	25.9 mm (1.0 in)	8 years	32 of 100 (Routine)
21 October 1920	Newark Liberty Intl AP, US	daily high max	27.2 C (81.0 F)	2.8 C (5.0 F)	68 years	32 of 100 (Routine)
21 October 1920	Stratford, CA	daily high max	25.6 C (78.1 F)	3.9 C (7.0 F)	52 years	26 of 100 (Routine)
21 October 1920	Guelph Oac, CA	daily high min	14.4 C (57.9 F)	5.0 C (9.0 F)	35 years	24 of 100 (Routine)
21 October 1920	Mount Macedon, AU	monthly rain	59.7 mm (2.4 in)	2.3 mm (0.09 in)	27 years	23 of 100 (Routine)
21 October 1920	Milwaukee Wb City, US	daily high max	27.2 C (81.0 F)	2.8 C (5.0 F)	44 years	22 of 100 (Routine)
21 October 1920	Maneroo, AU	daily rain	11.2 mm (0.4 in)	11.2 mm (0.4 in)	35 years	20 of 100 (Routine)
21 October 1920	Morris W Cntrl Rsch & Outreach, US	daily rain	15.7 mm (0.6 in)	11.6 mm (0.5 in)	14 years	20 of 100 (Routine)
21 October 1920	Turkestan, KZ	daily rain	5.9 mm (0.23 in)	4.1 mm (0.16 in)	3 years	20 of 100 (Routine)
21 October 1920	Montreal McGill, CA	daily high max	21.7 C (71.1 F)	0.6 C (1.1 F)	46 years	20 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 1920

Records set or tied on this calendar date in each year from 1795 to 1920. 1920 had 149 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 1920-10-21: 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 2026-10-14 (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 10	117
10 to 20	7
20 to 30	4
30 to 40	2
40 to 50	2
50 to 60	1
60 to 70	0
70 to 80	1