Weather Records on 21 October 1912

18 weather records were set or tied worldwide on 21 October 1912. Highest significance: Brisbane Regional Office, AU.

Key Facts for 21 October 1912

On 21 October 1912, 18 weather records were set or tied at long-record stations worldwide.
3 were record highs and 2 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 18 daily.
Brisbane Regional Office set a daily record precipitation of 38.1 mm (1.5 in) on 21 October 1912.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 422 records.

Record Map

18 stations

18 station records on 21 October 1912 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1912: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brisbane Regional Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Tulbagh (Pol)	South Africa	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Port Augusta Post Office	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Bedooba	Australia	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Yalta	Ukraine	Record daily precipitation	22.3 mm (0.9 in)	20 of 100 (Routine)
Stellenbosch (Tnk)	South Africa	Record daily precipitation	12.2 mm (0.5 in)	19 of 100 (Routine)
Portland Rfc City	United States	Record low maximum temperature	8.3 C (46.9 F)	18 of 100 (Routine)
Pooncarie (Tarcoola)	Australia	Record daily precipitation	10.2 mm (0.4 in)	17 of 100 (Routine)
Dubuque River	United States	Record daily precipitation	18.5 mm (0.7 in)	17 of 100 (Routine)
Streaky Bay	Australia	Record daily precipitation	6.1 mm (0.24 in)	14 of 100 (Routine)
Turkestan	Kazakhstan	Record daily precipitation	0.7 mm (0.03 in)	14 of 100 (Routine)
Boolcoomatta	Australia	Record daily precipitation	1.8 mm (0.07 in)	12 of 100 (Routine)
Haparanda	Sweden	Record low maximum temperature	-4.6 C (23.7 F)	12 of 100 (Routine)
Maly Uzen'	Russia	Record daily precipitation	11.0 mm (0.4 in)	11 of 100 (Routine)
Table.Mtn Platteklip	South Africa	Record daily precipitation	10.7 mm (0.4 in)	10 of 100 (Routine)
Brantford	Canada	Record high minimum temperature	10.6 C (51.1 F)	9 of 100 (Routine)
Trenton 2	United States	Record high maximum temperature	21.1 C (70.0 F)	4 of 100 (Routine)
Chattanooga Wb City	United States	Record high minimum temperature	15.0 C (59.0 F)	0 of 100 (Routine)

Counts by Type and Timescale

18 records

Records set or tied on 21 October 1912 by type: Highest daily maximum 1, Lowest daily maximum 2, Highest daily minimum 2, Heaviest daily rainfall 13.

Records on 21 October 1912 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	2
Highest daily minimum	2
Lowest daily minimum	0
Heaviest daily rainfall	13
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 October 1912 by timescale: all-time 0, monthly 0, daily 18.

How Much Records Were Beaten By

16 broken records

Margins by which the 16 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 14.9. Ties are not counted.

Top 20 by Significance

21 October 1912

Top 18 records on 21 October 1912 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1912	Brisbane Regional Office, AU	daily rain	38.1 mm (1.5 in)	13.2 mm (0.5 in)	38 years	30 of 100 (Routine)
21 October 1912	Tulbagh (Pol), ZA	daily rain	18.5 mm (0.7 in)	14.9 mm (0.6 in)	20 years	20 of 100 (Routine)
21 October 1912	Port Augusta Post Office, AU	daily rain	15.7 mm (0.6 in)	12.7 mm (0.5 in)	4 years	20 of 100 (Routine)
21 October 1912	Bedooba, AU	daily rain	20.1 mm (0.8 in)	10.4 mm (0.4 in)	28 years	20 of 100 (Routine)
21 October 1912	Yalta, UA	daily rain	22.3 mm (0.9 in)	10.4 mm (0.4 in)	23 years	20 of 100 (Routine)
21 October 1912	Stellenbosch (Tnk), ZA	daily rain	12.2 mm (0.5 in)	7.4 mm (0.29 in)	26 years	19 of 100 (Routine)
21 October 1912	Portland Rfc City, US	daily low max	8.3 C (46.9 F)	2.8 C (5.0 F)	28 years	18 of 100 (Routine)
21 October 1912	Pooncarie (Tarcoola), AU	daily rain	10.2 mm (0.4 in)	6.9 mm (0.27 in)	21 years	17 of 100 (Routine)
21 October 1912	Dubuque River, US	daily rain	18.5 mm (0.7 in)	8.1 mm (0.32 in)	17 years	17 of 100 (Routine)
21 October 1912	Streaky Bay, AU	daily rain	6.1 mm (0.24 in)	2.3 mm (0.09 in)	21 years	14 of 100 (Routine)
21 October 1912	Turkestan, KZ	daily rain	0.7 mm (0.03 in)	0.7 mm (0.03 in)	29 years	14 of 100 (Routine)
21 October 1912	Boolcoomatta, AU	daily rain	1.8 mm (0.07 in)	1.8 mm (0.07 in)	29 years	12 of 100 (Routine)
21 October 1912	Haparanda, SE	daily low max	-4.6 C (23.7 F)	0.6 C (1.1 F)	26 years	12 of 100 (Routine)
21 October 1912	Maly Uzen', RU	daily rain	11.0 mm (0.4 in)	2.1 mm (0.08 in)	10 years	11 of 100 (Routine)
21 October 1912	Table.Mtn Platteklip, ZA	daily rain	10.7 mm (0.4 in)	2.6 mm (0.10 in)	16 years	10 of 100 (Routine)
21 October 1912	Brantford, CA	daily high min	10.6 C (51.1 F)	1.2 C (2.2 F)	13 years	9 of 100 (Routine)
21 October 1912	Trenton 2, US	daily high max (Tie)	21.1 C (70.0 F)	tie	45 years	4 of 100 (Routine)
21 October 1912	Chattanooga Wb City, US	daily high min (Tie)	15.0 C (59.0 F)	tie	1 year	0 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 1912

Records set or tied on this calendar date in each year from 1795 to 1912. 1912 had 18 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	436
2019	755
2020	1,131
2021	572
2022	626
2023	881
2024	1,140
2025	365

Download the Data

Data for records on 1912-10-21: 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Margin	Records
0 to 2	4
2 to 4	4
4 to 6	0
6 to 8	2
8 to 10	1
10 to 12	2
12 to 14	2
14 to 16	1