Weather Records on 10 August 1921

66 weather records were set or tied worldwide on 10 August 1921. Highest significance: Howlong Post Office, AU.

Key Facts for 10 August 1921

On 10 August 1921, 66 weather records were set or tied at long-record stations worldwide.
9 were record highs and 12 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 65 daily.
Howlong Post Office set a daily record precipitation of 34.5 mm (1.4 in) on 10 August 1921.
Across 160 earlier years (1814 to 2026) the same calendar date averaged 471 records.

Record Map

66 stations

66 station records on 10 August 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 August 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Howlong Post Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	45 of 100 (Notable)
Green Bay	United States	Record daily precipitation	47.0 mm (1.9 in)	29 of 100 (Routine)
Bass (Kilcunda)	Australia	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	23.2 C (73.8 F)	25 of 100 (Routine)
Melbourne Regional Office	Australia	Record high minimum temperature	13.1 C (55.6 F)	21 of 100 (Routine)
Port Germein (Telowie)	Australia	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)
Hillston Airport	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Willaura (Yarram Park)	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Cape Borda Comparison	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Coulta	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Urana (Cocketgedong)	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Cultowa	Australia	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Weissenburg	Germany	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Enngonia (Morton Plains)	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Merungle	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Second Valley (Spring Grove)	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Matjiesfontein (Sar)	South Africa	Record daily precipitation	15.2 mm (0.6 in)	19 of 100 (Routine)
Beeac (Eurack)	Australia	Record daily precipitation	12.7 mm (0.5 in)	18 of 100 (Routine)
Walsingham 1	South Africa	Record daily precipitation	3.8 mm (0.15 in)	18 of 100 (Routine)
Port Lincoln (Woolga)	Australia	Record daily precipitation	14.2 mm (0.6 in)	17 of 100 (Routine)
Fort Bourke	Australia	Record daily precipitation	3.0 mm (0.12 in)	17 of 100 (Routine)
Jumping Sand Hill Well	Australia	Record daily precipitation	10.4 mm (0.4 in)	17 of 100 (Routine)
Kargopol	Russia	Record daily precipitation	21.6 mm (0.9 in)	17 of 100 (Routine)
Aberdeen (Tnk)	South Africa	Record daily precipitation	2.5 mm (0.10 in)	17 of 100 (Routine)
Barraba (Mount Lindsay)	Australia	Record daily precipitation	25.4 mm (1.0 in)	16 of 100 (Routine)
Plauen	Germany	Record high maximum temperature	30.3 C (86.5 F)	16 of 100 (Routine)
Constantine	Algeria	Record high maximum temperature	39.0 C (102.2 F)	15 of 100 (Routine)
Currawinya	Australia	Record daily precipitation	2.5 mm (0.10 in)	15 of 100 (Routine)
Urana (Butherwah)	Australia	Record daily precipitation	16.0 mm (0.6 in)	15 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record high minimum temperature	11.7 C (53.1 F)	15 of 100 (Routine)
Weissenburg	Germany	Record high maximum temperature	30.6 C (87.1 F)	15 of 100 (Routine)
Zagreb-Gric	Croatia	Record high minimum temperature	21.7 C (71.1 F)	15 of 100 (Routine)
Kendrew Estates	South Africa	Record daily precipitation	2.8 mm (0.11 in)	15 of 100 (Routine)
Waverley	South Africa	Record daily precipitation	1.3 mm (0.05 in)	15 of 100 (Routine)
Cullendale	South Africa	Record daily precipitation	2.5 mm (0.10 in)	14 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record daily precipitation	18.8 mm (0.7 in)	14 of 100 (Routine)
Warooka	Australia	Record daily precipitation	10.2 mm (0.4 in)	13 of 100 (Routine)
The Olives	Australia	Record daily precipitation	24.1 mm (0.9 in)	13 of 100 (Routine)
Schwerin	Germany	Record low minimum temperature	7.8 C (46.0 F)	12 of 100 (Routine)
Cottbus	Germany	Record low minimum temperature	8.1 C (46.6 F)	12 of 100 (Routine)
Batesville	United States	Record low minimum temperature	15.0 C (59.0 F)	12 of 100 (Routine)
Moonaree	Australia	Record daily precipitation	6.9 mm (0.27 in)	11 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record low minimum temperature	9.2 C (48.6 F)	11 of 100 (Routine)
Arnsberg	Germany	Record low minimum temperature	7.0 C (44.6 F)	11 of 100 (Routine)
Woodstock West	Australia	Record daily precipitation	4.8 mm (0.19 in)	10 of 100 (Routine)
Magdeburg	Germany	Record low minimum temperature	9.3 C (48.7 F)	10 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record low minimum temperature	7.8 C (46.0 F)	10 of 100 (Routine)
Brinkley	United States	Record low minimum temperature	17.2 C (63.0 F)	10 of 100 (Routine)
Elliston	Australia	Record daily precipitation	12.7 mm (0.5 in)	9 of 100 (Routine)
Charleville Post Office	Australia	Record high minimum temperature	13.2 C (55.8 F)	9 of 100 (Routine)
Fulham Park	Australia	Record daily precipitation	15.2 mm (0.6 in)	9 of 100 (Routine)
Yallook	Australia	Record daily precipitation	4.3 mm (0.17 in)	9 of 100 (Routine)
Oudtshoorn	South Africa	Record daily precipitation	12.2 mm (0.5 in)	9 of 100 (Routine)
Stokes	Australia	Record daily precipitation	10.9 mm (0.4 in)	8 of 100 (Routine)
Glenlee	Australia	Record daily precipitation	8.1 mm (0.32 in)	8 of 100 (Routine)
Beaufort (Stoneleigh)	Australia	Record daily precipitation	5.8 mm (0.23 in)	8 of 100 (Routine)
Sedan (Sandleton)	Australia	Record daily precipitation	2.5 mm (0.10 in)	7 of 100 (Routine)
Bowen Post Office	Australia	Record daily precipitation	4.8 mm (0.19 in)	7 of 100 (Routine)
Innsbruck	Austria	Record high maximum temperature	30.8 C (87.4 F)	7 of 100 (Routine)
Gudgenby	Australia	Record daily precipitation	7.6 mm (0.30 in)	5 of 100 (Routine)

Counts by Type and Timescale

66 records

Records set or tied on 10 August 1921 by type: Highest daily maximum 5, Lowest daily maximum 1, Highest daily minimum 4, Lowest daily minimum 11, Heaviest daily rainfall 45.

Records on 10 August 1921 by type
Record type	Records
Highest daily maximum	5
Lowest daily maximum	1
Highest daily minimum	4
Lowest daily minimum	11
Heaviest daily rainfall	45
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 10 August 1921 by timescale: all-time 0, monthly 1, daily 65.

How Much Records Were Beaten By

62 broken records

Margins by which the 62 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.8. Ties are not counted.

Top 20 by Significance

10 August 1921

Top 20 records on 10 August 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 August 1921	Howlong Post Office, AU	daily rain	34.5 mm (1.4 in)	23.8 mm (0.9 in)	15 years	45 of 100 (Notable)
10 August 1921	Green Bay, US	daily rain	47.0 mm (1.9 in)	19.3 mm (0.8 in)	28 years	29 of 100 (Routine)
10 August 1921	Bass (Kilcunda), AU	monthly rain	40.6 mm (1.6 in)	2.5 mm (0.10 in)	30 years	26 of 100 (Routine)
10 August 1921	Sydney (Observatory Hill), AU	daily high max	23.2 C (73.8 F)	1.9 C (3.4 F)	43 years	25 of 100 (Routine)
10 August 1921	Melbourne Regional Office, AU	daily high min	13.1 C (55.6 F)	2.1 C (3.8 F)	26 years	21 of 100 (Routine)
10 August 1921	Port Germein (Telowie), AU	daily rain	12.4 mm (0.5 in)	9.4 mm (0.37 in)	36 years	20 of 100 (Routine)
10 August 1921	Hillston Airport, AU	daily rain	20.6 mm (0.8 in)	16.5 mm (0.6 in)	15 years	20 of 100 (Routine)
10 August 1921	Willaura (Yarram Park), AU	daily rain	18.3 mm (0.7 in)	10.7 mm (0.4 in)	26 years	20 of 100 (Routine)
10 August 1921	Cape Borda Comparison, AU	daily rain	21.6 mm (0.9 in)	6.4 mm (0.25 in)	50 years	20 of 100 (Routine)
10 August 1921	Coulta, AU	daily rain	18.0 mm (0.7 in)	10.4 mm (0.4 in)	14 years	20 of 100 (Routine)
10 August 1921	Urana (Cocketgedong), AU	daily rain	15.2 mm (0.6 in)	10.4 mm (0.4 in)	15 years	20 of 100 (Routine)
10 August 1921	Cultowa, AU	daily rain	7.6 mm (0.30 in)	7.6 mm (0.30 in)	38 years	20 of 100 (Routine)
10 August 1921	Weissenburg, DE	daily rain	23.6 mm (0.9 in)	8.1 mm (0.32 in)	26 years	20 of 100 (Routine)
10 August 1921	Enngonia (Morton Plains), AU	daily rain	11.2 mm (0.4 in)	11.2 mm (0.4 in)	35 years	20 of 100 (Routine)
10 August 1921	Merungle, AU	daily rain	16.5 mm (0.6 in)	8.9 mm (0.35 in)	29 years	20 of 100 (Routine)
10 August 1921	Second Valley (Spring Grove), AU	daily rain	15.7 mm (0.6 in)	5.0 mm (0.20 in)	35 years	20 of 100 (Routine)
10 August 1921	Matjiesfontein (Sar), ZA	daily rain	15.2 mm (0.6 in)	8.3 mm (0.33 in)	8 years	19 of 100 (Routine)
10 August 1921	Beeac (Eurack), AU	daily rain	12.7 mm (0.5 in)	3.0 mm (0.12 in)	30 years	18 of 100 (Routine)
10 August 1921	Walsingham 1, ZA	daily rain	3.8 mm (0.15 in)	3.8 mm (0.15 in)	35 years	18 of 100 (Routine)
10 August 1921	Port Lincoln (Woolga), AU	daily rain	14.2 mm (0.6 in)	3.5 mm (0.14 in)	26 years	17 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

1814 to 1921

Records set or tied on this calendar date in each year from 1814 to 1921. 1921 had 66 records.

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

Records on 08-10 in each year
Year	Records
1814	1
1815	1
1838	1
1845	2
1847	1
1849	1
1852	1
1853	1
1857	2
1859	1
1861	2
1862	2
1863	1
1864	1
1869	2
1871	1
1877	1
1879	4
1881	2
1884	2
1885	1
1886	1
1887	1
1888	1
1890	2
1891	6
1892	1
1893	1
1894	5
1895	1
1896	5
1897	7
1898	4
1899	6
1900	6
1901	5
1902	7
1903	8
1904	12
1905	5
1906	16
1907	9
1908	7
1909	33
1910	10
1911	40
1912	39
1913	44
1914	27
1915	26
1916	88
1917	51
1918	43
1919	51
1920	101
1921	66
1922	78
1923	175
1924	245
1925	430
1926	80
1927	294
1928	160
1929	264
1930	299
1931	424
1932	251
1933	305
1934	662
1935	480
1936	487
1937	399
1938	382
1939	593
1940	386
1941	459
1942	420
1943	304
1944	1,006
1945	360
1946	303
1947	766
1948	339
1949	586
1950	324
1951	425
1952	395
1953	431
1954	372
1955	309
1956	522
1957	322
1958	443
1959	528
1960	470
1961	640
1962	761
1963	479
1964	553
1965	700
1966	1,231
1967	766
1968	784
1969	588
1970	702
1971	760
1972	1,175
1973	597
1974	719
1975	664
1976	855
1977	786
1978	495
1979	700
1980	849
1981	857
1982	1,070
1983	915
1984	956
1985	918
1986	535
1987	896
1988	792
1989	1,291
1990	736
1991	819
1992	1,051
1993	774
1994	1,338
1995	1,119
1996	1,027
1997	1,504
1998	1,112
1999	945
2000	990
2001	1,192
2002	1,080
2003	1,556
2004	976
2005	1,225
2006	980
2007	1,476
2008	871
2009	869
2010	1,704
2011	1,247
2012	995
2013	599
2014	516
2015	583
2016	893
2017	636
2018	1,018
2019	754
2020	816
2021	553
2022	687
2023	782
2024	882
2025	659
2026	1,149

Download the Data

Data for records on 1921-08-10: 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 2026-10-17 (17 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 5	45
5 to 10	9
10 to 15	5
15 to 20	2
20 to 25	1