Weather Records on 21 August 1923

111 weather records were set or tied worldwide on 21 August 1923. Highest significance: Mauzy, US.

Key Facts for 21 August 1923

On 21 August 1923, 111 weather records were set or tied at long-record stations worldwide.
9 were record highs and 52 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 4 monthly and 106 daily.
Mauzy set a daily record precipitation of 63.8 mm (2.5 in) on 21 August 1923.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 452 records.

Record Map

111 stations

111 station records on 21 August 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mauzy	United States	Record daily precipitation	63.8 mm (2.5 in)	35 of 100 (Notable)
Cape Moreton Lighthouse	Australia	Record daily precipitation	81.0 mm (3.2 in)	34 of 100 (Routine)
Dunwich Post Office	Australia	Record daily precipitation	48.5 mm (1.9 in)	31 of 100 (Routine)
Quesnel	Canada	Record high minimum temperature	21.7 C (71.1 F)	31 of 100 (Routine)
Alma	United States	Record daily precipitation	55.4 mm (2.2 in)	31 of 100 (Routine)
Lucknow	Canada	Record daily precipitation	44.5 mm (1.8 in)	30 of 100 (Routine)
Millington 3 SE	United States	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Moose Factory	Canada	Record low maximum temperature	9.4 C (48.9 F)	26 of 100 (Routine)
Vinga	Sweden	Record daily precipitation	26.2 mm (1.0 in)	22 of 100 (Routine)
La Crosse River	United States	Record daily precipitation	27.2 mm (1.1 in)	21 of 100 (Routine)
Lusk 2 SW	United States	Record low maximum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
The Dalles	United States	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Tranebjerg	Denmark	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Astoria	United States	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Syfergat (Sar)	South Africa	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Bathurst	Canada	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Yardley Chase	South Africa	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
White River	Canada	Record low maximum temperature	10.0 C (50.0 F)	20 of 100 (Routine)
Sandy Cape Lighthouse	Australia	Record daily precipitation	17.8 mm (0.7 in)	19 of 100 (Routine)
Ida	South Africa	Record daily precipitation	13.0 mm (0.5 in)	19 of 100 (Routine)
Medford	United States	Record daily precipitation	35.6 mm (1.4 in)	19 of 100 (Routine)
Parry Sound	Canada	Record daily precipitation	36.1 mm (1.4 in)	18 of 100 (Routine)
Paris	Canada	Record daily precipitation	34.3 mm (1.4 in)	18 of 100 (Routine)
Quebec	Canada	Record daily precipitation	36.8 mm (1.4 in)	18 of 100 (Routine)
Guy Fawkes 2	Australia	Record daily precipitation	29.7 mm (1.2 in)	17 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record low minimum temperature	3.5 C (38.3 F)	17 of 100 (Routine)
Las Animas	United States	Record low minimum temperature	4.4 C (39.9 F)	17 of 100 (Routine)
Oconto 4 W	United States	Record low maximum temperature	18.9 C (66.0 F)	17 of 100 (Routine)
Asheville	United States	Record high maximum temperature	31.1 C (88.0 F)	17 of 100 (Routine)
St Helena Island	Australia	Record daily precipitation	14.5 mm (0.6 in)	16 of 100 (Routine)
Port Arthur	Canada	Record low maximum temperature	15.0 C (59.0 F)	16 of 100 (Routine)
Moose Factory	Canada	Record daily precipitation	24.1 mm (0.9 in)	16 of 100 (Routine)
Tranebjerg	Denmark	Record low minimum temperature	5.7 C (42.3 F)	16 of 100 (Routine)
Oksoey Fyr	Norway	Record daily precipitation	18.9 mm (0.7 in)	16 of 100 (Routine)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	11.9 mm (0.5 in)	16 of 100 (Routine)
Montevideo 1SW	United States	Record low maximum temperature	20.0 C (68.0 F)	16 of 100 (Routine)
Norfolk	United States	Record low maximum temperature	21.1 C (70.0 F)	16 of 100 (Routine)
Mt Angel	United States	Record daily precipitation	5.1 mm (0.20 in)	16 of 100 (Routine)
Bancroft	Canada	Record low maximum temperature	13.3 C (55.9 F)	15 of 100 (Routine)
Independence	United States	Record daily precipitation	13.7 mm (0.5 in)	15 of 100 (Routine)
Geneva	United States	Record low maximum temperature	22.2 C (72.0 F)	15 of 100 (Routine)
Neillsville 3ESE	United States	Record low maximum temperature	17.2 C (63.0 F)	15 of 100 (Routine)
Lismore (Centre Street)	Australia	Record daily precipitation	29.0 mm (1.1 in)	14 of 100 (Routine)
Mnt Fletcher (Tnk)	South Africa	Record daily precipitation	3.8 mm (0.15 in)	14 of 100 (Routine)
Great Falls 16St	United States	Record daily precipitation	9.9 mm (0.39 in)	14 of 100 (Routine)
Cooperstown	United States	Record low minimum temperature	2.2 C (36.0 F)	14 of 100 (Routine)
Temple	United States	Record high minimum temperature	25.6 C (78.1 F)	14 of 100 (Routine)
Tsomo (Pol)	South Africa	Record daily precipitation	0.8 mm (0.03 in)	13 of 100 (Routine)
Buffelsfontein 14	South Africa	Record daily precipitation	3.8 mm (0.15 in)	13 of 100 (Routine)
Alta	United States	Record low minimum temperature	6.7 C (44.1 F)	13 of 100 (Routine)
Neillsville 3ESE	United States	Record daily precipitation	23.4 mm (0.9 in)	13 of 100 (Routine)
Stroud Post Office	Australia	Record daily precipitation	15.5 mm (0.6 in)	12 of 100 (Routine)
Ravenna	United States	Record low maximum temperature	25.6 C (78.1 F)	12 of 100 (Routine)
Anacortes	United States	Record daily precipitation	18.8 mm (0.7 in)	12 of 100 (Routine)
Brisbane Regional Office	Australia	Record low maximum temperature	17.4 C (63.3 F)	11 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record low maximum temperature	5.0 C (41.0 F)	11 of 100 (Routine)
Grand Meadow	United States	Record daily precipitation	54.6 mm (2.1 in)	11 of 100 (Routine)
Grants Pass	United States	Record high minimum temperature	15.0 C (59.0 F)	11 of 100 (Routine)
Prairie du Chien	United States	Record daily precipitation	48.3 mm (1.9 in)	11 of 100 (Routine)

Counts by Type and Timescale

111 records

Records set or tied on 21 August 1923 by type: Highest daily maximum 1, Lowest daily maximum 39, Highest daily minimum 8, Lowest daily minimum 13, Heaviest daily rainfall 50.

Records on 21 August 1923 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	39
Highest daily minimum	8
Lowest daily minimum	13
Heaviest daily rainfall	50
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1923 by timescale: all-time 1, monthly 4, daily 106.

How Much Records Were Beaten By

91 broken records

Margins by which the 91 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 40.9. Ties are not counted.

Top 20 by Significance

21 August 1923

Top 20 records on 21 August 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1923	Mauzy, US	daily rain	63.8 mm (2.5 in)	40.9 mm (1.6 in)	12 years	35 of 100 (Notable)
21 August 1923	Cape Moreton Lighthouse, AU	monthly rain	81.0 mm (3.2 in)	13.2 mm (0.5 in)	36 years	34 of 100 (Routine)
21 August 1923	Dunwich Post Office, AU	daily rain	48.5 mm (1.9 in)	28.9 mm (1.1 in)	1 year	31 of 100 (Routine)
21 August 1923	Quesnel, CA	all-time high min	21.7 C (71.1 F)	2.3 C (4.1 F)	5 years	31 of 100 (Routine)
21 August 1923	Alma, US	daily rain	55.4 mm (2.2 in)	33.6 mm (1.3 in)	2 years	31 of 100 (Routine)
21 August 1923	Lucknow, CA	daily rain	44.5 mm (1.8 in)	15.3 mm (0.6 in)	31 years	30 of 100 (Routine)
21 August 1923	Millington 3 SE, US	daily rain	50.8 mm (2.0 in)	26.9 mm (1.1 in)	8 years	27 of 100 (Routine)
21 August 1923	Moose Factory, CA	daily low max	9.4 C (48.9 F)	5.0 C (9.0 F)	42 years	26 of 100 (Routine)
21 August 1923	Vinga, SE	daily rain	26.2 mm (1.0 in)	5.2 mm (0.20 in)	37 years	22 of 100 (Routine)
21 August 1923	La Crosse River, US	daily rain	27.2 mm (1.1 in)	9.2 mm (0.36 in)	36 years	21 of 100 (Routine)
21 August 1923	Lusk 2 SW, US	daily low max	15.0 C (59.0 F)	7.2 C (13.0 F)	8 years	21 of 100 (Routine)
21 August 1923	The Dalles, US	monthly rain	17.3 mm (0.7 in)	3.3 mm (0.13 in)	23 years	20 of 100 (Routine)
21 August 1923	Tranebjerg, DK	daily rain	17.0 mm (0.7 in)	5.7 mm (0.22 in)	45 years	20 of 100 (Routine)
21 August 1923	Astoria, US	daily rain	17.5 mm (0.7 in)	10.4 mm (0.4 in)	32 years	20 of 100 (Routine)
21 August 1923	Syfergat (Sar), ZA	daily rain	11.7 mm (0.5 in)	10.7 mm (0.4 in)	25 years	20 of 100 (Routine)
21 August 1923	Bathurst, CA	daily rain	15.7 mm (0.6 in)	10.6 mm (0.4 in)	31 years	20 of 100 (Routine)
21 August 1923	Koebenhavn: Landbohojskolen-1, DK	daily rain	18.8 mm (0.7 in)	2.2 mm (0.09 in)	45 years	20 of 100 (Routine)
21 August 1923	Yardley Chase, ZA	daily rain	9.7 mm (0.38 in)	6.9 mm (0.27 in)	17 years	20 of 100 (Routine)
21 August 1923	White River, CA	daily low max	10.0 C (50.0 F)	4.4 C (7.9 F)	25 years	20 of 100 (Routine)
21 August 1923	Sandy Cape Lighthouse, AU	daily rain	17.8 mm (0.7 in)	13.5 mm (0.5 in)	16 years	19 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

1800 to 1923

Records set or tied on this calendar date in each year from 1800 to 1923. 1923 had 111 records.

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

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 1923-08-21: 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).

Histogram of margins by which records were beaten on 21 August 1923
Margin	Records
0 to 10	75
10 to 20	12
20 to 30	2
30 to 40	1
40 to 50	1