Weather Records on 20 August 1923

83 weather records were set or tied worldwide on 20 August 1923. Highest significance: Dunwich Post Office, AU.

Key Facts for 20 August 1923

On 20 August 1923, 83 weather records were set or tied at long-record stations worldwide.
6 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 79 daily.
Dunwich Post Office set a daily record precipitation of 45.0 mm (1.8 in) on 20 August 1923.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 457 records.

Record Map

83 stations

83 station records on 20 August 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dunwich Post Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	38 of 100 (Notable)
Wiarton	Canada	Record daily precipitation	31.0 mm (1.2 in)	29 of 100 (Routine)
Spokane Intl AP	United States	Record daily precipitation	36.6 mm (1.4 in)	29 of 100 (Routine)
Malin Head	Ireland	Record daily precipitation	27.5 mm (1.1 in)	26 of 100 (Routine)
Duaringa Post Office	Australia	Record daily precipitation	66.3 mm (2.6 in)	24 of 100 (Routine)
Woodburn Post Office	Australia	Record daily precipitation	50.3 mm (2.0 in)	23 of 100 (Routine)
Pointe Au Pere	Canada	Record low maximum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Ellensburg	United States	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Moxee	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Przhevalsk	Kyrgyzstan	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
St Helena Island	Australia	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
Chaplin	Canada	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Rosalia	United States	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Havre Wb City	United States	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Southport Ridgeway Ave	Australia	Record daily precipitation	31.0 mm (1.2 in)	20 of 100 (Routine)
Welland	Canada	Record low minimum temperature	6.1 C (43.0 F)	20 of 100 (Routine)
Covington 8 WNW	United States	Record daily precipitation	55.9 mm (2.2 in)	20 of 100 (Routine)
Bundaberg Post Office	Australia	Record low maximum temperature	18.2 C (64.8 F)	19 of 100 (Routine)
Scottsboro	United States	Record low minimum temperature	13.3 C (55.9 F)	18 of 100 (Routine)
Calhoun 2 N	United States	Record low minimum temperature	15.0 C (59.0 F)	18 of 100 (Routine)
Darwin Post Office	Australia	Record low maximum temperature	28.4 C (83.1 F)	17 of 100 (Routine)
Thornborough	Australia	Record daily precipitation	1.3 mm (0.05 in)	17 of 100 (Routine)
Ottawa	Canada	Record low minimum temperature	5.6 C (42.1 F)	17 of 100 (Routine)
Ottawa Cda	Canada	Record low minimum temperature	5.6 C (42.1 F)	17 of 100 (Routine)
Lakefield	Canada	Record low minimum temperature	5.6 C (42.1 F)	17 of 100 (Routine)
Vastervik	Sweden	Record low maximum temperature	15.0 C (59.0 F)	17 of 100 (Routine)
Jakutsk	Russia	Record daily precipitation	15.2 mm (0.6 in)	16 of 100 (Routine)
Oregon	United States	Record high minimum temperature	26.1 C (79.0 F)	16 of 100 (Routine)
Helena Wb City	United States	Record daily precipitation	23.4 mm (0.9 in)	16 of 100 (Routine)
Richmond Post Office	Australia	Record low maximum temperature	23.9 C (75.0 F)	15 of 100 (Routine)
Umea	Sweden	Record low minimum temperature	0.5 C (32.9 F)	15 of 100 (Routine)
Franklin 3 NW	United States	Record daily precipitation	46.5 mm (1.8 in)	15 of 100 (Routine)
Maclean (McLachlan Street)	Australia	Record daily precipitation	21.6 mm (0.9 in)	14 of 100 (Routine)
Spring Hill	Australia	Record daily precipitation	41.9 mm (1.6 in)	14 of 100 (Routine)
Tabl.Mtn Molteno Rsv	South Africa	Record daily precipitation	14.0 mm (0.6 in)	14 of 100 (Routine)
Lakeside	United States	Record daily precipitation	3.6 mm (0.14 in)	14 of 100 (Routine)
Newport	United States	Record high minimum temperature	13.9 C (57.0 F)	14 of 100 (Routine)
Darwin Post Office	Australia	Record low minimum temperature	16.9 C (62.4 F)	13 of 100 (Routine)
Bancroft	Canada	Record low maximum temperature	15.6 C (60.1 F)	13 of 100 (Routine)
Petoskey	United States	Record low minimum temperature	4.4 C (39.9 F)	13 of 100 (Routine)
Agricultural College	United States	Record daily precipitation	16.5 mm (0.6 in)	13 of 100 (Routine)
Springsure Comet St	Australia	Record daily precipitation	24.1 mm (0.9 in)	12 of 100 (Routine)
Lawrence Post Office	Australia	Record daily precipitation	25.4 mm (1.0 in)	12 of 100 (Routine)
Agassiz Cda	Canada	Record low maximum temperature	16.7 C (62.1 F)	12 of 100 (Routine)
Weissenburg	Germany	Record low maximum temperature	15.0 C (59.0 F)	12 of 100 (Routine)
Tot-Ma	Russia	Record daily precipitation	21.0 mm (0.8 in)	12 of 100 (Routine)
Agricultural College	United States	Record low maximum temperature	27.2 C (81.0 F)	12 of 100 (Routine)
Santa Fe	United States	Record low maximum temperature	20.0 C (68.0 F)	12 of 100 (Routine)
Grantsburg	United States	Record low minimum temperature	4.4 C (39.9 F)	12 of 100 (Routine)
Landsborough Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	11 of 100 (Routine)
Atlantic 1 NE	United States	Record high minimum temperature	24.4 C (75.9 F)	11 of 100 (Routine)
Oberlin	United States	Record low minimum temperature	7.2 C (45.0 F)	11 of 100 (Routine)
Northfield	United States	Record low minimum temperature	0.0 C (32.0 F)	11 of 100 (Routine)
Manitowoc	United States	Record daily precipitation	35.6 mm (1.4 in)	11 of 100 (Routine)
Woody Island	Australia	Record daily precipitation	31.5 mm (1.2 in)	10 of 100 (Routine)
Karlshamn	Sweden	Record low maximum temperature	15.5 C (59.9 F)	10 of 100 (Routine)
Charlevoix	United States	Record daily precipitation	2.0 mm (0.08 in)	10 of 100 (Routine)
Bird Island	United States	Record daily precipitation	14.5 mm (0.6 in)	10 of 100 (Routine)
Newport	United States	Record high maximum temperature	23.9 C (75.0 F)	10 of 100 (Routine)
Brisbane Regional Office	Australia	Record low maximum temperature	17.6 C (63.7 F)	9 of 100 (Routine)

Counts by Type and Timescale

83 records

Records set or tied on 20 August 1923 by type: Highest daily maximum 2, Lowest daily maximum 21, Highest daily minimum 4, Lowest daily minimum 21, Heaviest daily rainfall 35.

Records on 20 August 1923 by type
Record type	Records
Highest daily maximum	2
Lowest daily maximum	21
Highest daily minimum	4
Lowest daily minimum	21
Heaviest daily rainfall	35
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1923 by timescale: all-time 0, monthly 4, daily 79.

How Much Records Were Beaten By

69 broken records

Margins by which the 69 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 34.3. Ties are not counted.

Top 20 by Significance

20 August 1923

Top 20 records on 20 August 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1923	Dunwich Post Office, AU	daily rain	45.0 mm (1.8 in)	34.3 mm (1.4 in)	6 years	38 of 100 (Notable)
20 August 1923	Wiarton, CA	daily rain	31.0 mm (1.2 in)	20.6 mm (0.8 in)	31 years	29 of 100 (Routine)
20 August 1923	Spokane Intl AP, US	monthly rain	36.6 mm (1.4 in)	7.1 mm (0.28 in)	10 years	29 of 100 (Routine)
20 August 1923	Malin Head, IE	daily rain	27.5 mm (1.1 in)	11.0 mm (0.4 in)	12 years	26 of 100 (Routine)
20 August 1923	Duaringa Post Office, AU	daily rain	66.3 mm (2.6 in)	23.9 mm (0.9 in)	29 years	24 of 100 (Routine)
20 August 1923	Woodburn Post Office, AU	daily rain	50.3 mm (2.0 in)	27.9 mm (1.1 in)	21 years	23 of 100 (Routine)
20 August 1923	Pointe Au Pere, CA	daily low max	11.1 C (52.0 F)	1.7 C (3.1 F)	43 years	22 of 100 (Routine)
20 August 1923	Ellensburg, US	daily rain	9.1 mm (0.36 in)	9.1 mm (0.36 in)	29 years	20 of 100 (Routine)
20 August 1923	Moxee, US	monthly rain	15.2 mm (0.6 in)	4.0 mm (0.16 in)	16 years	20 of 100 (Routine)
20 August 1923	Przhevalsk, KG	daily rain	14.5 mm (0.6 in)	10.7 mm (0.4 in)	34 years	20 of 100 (Routine)
20 August 1923	St Helena Island, AU	daily rain	22.1 mm (0.9 in)	10.7 mm (0.4 in)	28 years	20 of 100 (Routine)
20 August 1923	Chaplin, CA	daily rain	20.3 mm (0.8 in)	12.7 mm (0.5 in)	12 years	20 of 100 (Routine)
20 August 1923	Rosalia, US	daily rain	14.0 mm (0.6 in)	9.7 mm (0.38 in)	4 years	20 of 100 (Routine)
20 August 1923	Havre Wb City, US	daily rain	17.3 mm (0.7 in)	7.9 mm (0.31 in)	18 years	20 of 100 (Routine)
20 August 1923	Southport Ridgeway Ave, AU	daily rain	31.0 mm (1.2 in)	15.8 mm (0.6 in)	21 years	20 of 100 (Routine)
20 August 1923	Welland, CA	daily low min	6.1 C (43.0 F)	1.7 C (3.1 F)	37 years	20 of 100 (Routine)
20 August 1923	Covington 8 WNW, US	daily rain	55.9 mm (2.2 in)	20.3 mm (0.8 in)	12 years	20 of 100 (Routine)
20 August 1923	Bundaberg Post Office, AU	daily low max	18.2 C (64.8 F)	1.9 C (3.4 F)	20 years	19 of 100 (Routine)
20 August 1923	Scottsboro, US	daily low min	13.3 C (55.9 F)	2.8 C (5.0 F)	13 years	18 of 100 (Routine)
20 August 1923	Calhoun 2 N, US	daily low min	15.0 C (59.0 F)	3.3 C (5.9 F)	4 years	18 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

1797 to 1923

Records set or tied on this calendar date in each year from 1797 to 1923. 1923 had 83 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 1923-08-20: 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	47
5 to 10	11
10 to 15	4
15 to 20	2
20 to 25	3
25 to 30	1
30 to 35	1