Weather Records on 18 August 1923

90 weather records were set or tied worldwide on 18 August 1923. Highest significance: Robben Island (Vrt), ZA.

Key Facts for 18 August 1923

On 18 August 1923, 90 weather records were set or tied at long-record stations worldwide.
18 were record highs and 44 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 4 monthly and 85 daily.
Robben Island (Vrt) set a daily record precipitation of 41.4 mm (1.6 in) on 18 August 1923.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 443 records.

Record Map

90 stations

90 station records on 18 August 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Robben Island (Vrt)	South Africa	Record daily precipitation	41.4 mm (1.6 in)	50 of 100 (Notable)
Kalmar_D	Sweden	Record daily precipitation	30.8 mm (1.2 in)	39 of 100 (Notable)
Pine Hill Railway Station	Australia	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Gospic	Croatia	Record daily precipitation	83.0 mm (3.3 in)	32 of 100 (Routine)
Middletown 4 W	United States	Record low minimum temperature	3.9 C (39.0 F)	22 of 100 (Routine)
Setauket Strong	United States	Record low minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Euston Station	Australia	Record daily precipitation	3.0 mm (0.12 in)	20 of 100 (Routine)
Storrs	United States	Record low minimum temperature	6.1 C (43.0 F)	20 of 100 (Routine)
Spokane Intl AP	United States	Record high minimum temperature	21.7 C (71.1 F)	20 of 100 (Routine)
Low Isles Lighthouse	Australia	Record daily precipitation	10.2 mm (0.4 in)	19 of 100 (Routine)
Townsville Pilot Station	Australia	Record daily precipitation	0.5 mm (0.02 in)	19 of 100 (Routine)
Lakefield	Canada	Record low minimum temperature	6.7 C (44.1 F)	19 of 100 (Routine)
Robertson	South Africa	Record daily precipitation	2.5 mm (0.10 in)	19 of 100 (Routine)
Springbok	South Africa	Record daily precipitation	15.7 mm (0.6 in)	19 of 100 (Routine)
Macksville 8 NNE	United States	Record low minimum temperature	11.1 C (52.0 F)	19 of 100 (Routine)
State UNIV	United States	Record high minimum temperature	27.2 C (81.0 F)	19 of 100 (Routine)
Innisfail	Australia	Record daily precipitation	67.3 mm (2.6 in)	18 of 100 (Routine)
Eersterivier (Bos)	South Africa	Record daily precipitation	24.1 mm (0.9 in)	18 of 100 (Routine)
Halmstad	Sweden	Record low maximum temperature	15.0 C (59.0 F)	18 of 100 (Routine)
Earlington	United States	Record daily precipitation	29.2 mm (1.1 in)	18 of 100 (Routine)
Blackall Township	Australia	Record daily precipitation	2.0 mm (0.08 in)	17 of 100 (Routine)
Ter Apel	Netherlands	Record daily precipitation	13.9 mm (0.5 in)	16 of 100 (Routine)
Bartow 1SE	United States	Record high maximum temperature	37.2 C (99.0 F)	16 of 100 (Routine)
McPherson	United States	Record low minimum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Tarboro 1 S	United States	Record low maximum temperature	23.9 C (75.0 F)	16 of 100 (Routine)
Waverly	United States	Record low maximum temperature	21.7 C (71.1 F)	16 of 100 (Routine)
Schriever	United States	Record daily precipitation	50.8 mm (2.0 in)	15 of 100 (Routine)
Pendleton Dwtn	United States	Record high minimum temperature	18.9 C (66.0 F)	15 of 100 (Routine)
Alpha Post Office	Australia	Record daily precipitation	1.5 mm (0.06 in)	14 of 100 (Routine)
Paris	Canada	Record daily precipitation	25.4 mm (1.0 in)	14 of 100 (Routine)
Tbilisi	Georgia	Record low minimum temperature	10.3 C (50.5 F)	14 of 100 (Routine)
The Dalles	United States	Record high minimum temperature	18.3 C (64.9 F)	14 of 100 (Routine)
Pentland Post Office	Australia	Record daily precipitation	5.6 mm (0.22 in)	13 of 100 (Routine)
Mexico	United States	Record low maximum temperature	22.2 C (72.0 F)	13 of 100 (Routine)
Sloan 3 S	United States	Record high maximum temperature	36.7 C (98.1 F)	13 of 100 (Routine)
Vestervig	Denmark	Record low maximum temperature	14.2 C (57.6 F)	12 of 100 (Routine)
Lake Cochituate	United States	Record low minimum temperature	3.9 C (39.0 F)	12 of 100 (Routine)
Alexandria 4 WSW	United States	Record low minimum temperature	8.9 C (48.0 F)	12 of 100 (Routine)
Rosalia	United States	Record high maximum temperature	37.8 C (100.0 F)	12 of 100 (Routine)
Spring Hill	Australia	Record daily precipitation	24.1 mm (0.9 in)	11 of 100 (Routine)
Bamberg (Sternwarte)	Germany	Record daily precipitation	14.4 mm (0.6 in)	11 of 100 (Routine)
Canon City	United States	Record low maximum temperature	25.0 C (77.0 F)	11 of 100 (Routine)
Dahlonega 4WSW	United States	Record high minimum temperature	21.1 C (70.0 F)	11 of 100 (Routine)
Palestine	United States	Record low minimum temperature	12.8 C (55.0 F)	11 of 100 (Routine)
Calhoun 2 N	United States	Record low minimum temperature	17.8 C (64.0 F)	11 of 100 (Routine)
Appleton	United States	Record low minimum temperature	8.3 C (46.9 F)	11 of 100 (Routine)
Vanrhysdorp	South Africa	Record daily precipitation	9.4 mm (0.37 in)	10 of 100 (Routine)
Kiev	Ukraine	Record low maximum temperature	17.6 C (63.7 F)	9 of 100 (Routine)
Paterson	United States	Record low minimum temperature	10.6 C (51.1 F)	9 of 100 (Routine)
Cooperstown	United States	Record low minimum temperature	3.9 C (39.0 F)	9 of 100 (Routine)
Tarboro 1 S	United States	Record daily precipitation	29.7 mm (1.2 in)	9 of 100 (Routine)
Newberry	United States	Record daily precipitation	21.6 mm (0.9 in)	9 of 100 (Routine)
Marshallville 6 S	United States	Record high maximum temperature	37.2 C (99.0 F)	8 of 100 (Routine)
Eastport	United States	Record low minimum temperature	7.2 C (45.0 F)	8 of 100 (Routine)
Raleigh State UNIV	United States	Record low maximum temperature	22.8 C (73.0 F)	8 of 100 (Routine)
Granville	United States	Record low minimum temperature	7.8 C (46.0 F)	8 of 100 (Routine)
Orlando Executive AP	United States	Record daily precipitation	39.4 mm (1.6 in)	8 of 100 (Routine)
Gorlitz	Germany	Record daily precipitation	18.2 mm (0.7 in)	7 of 100 (Routine)
Hutchinson River	United States	Record low minimum temperature	12.2 C (54.0 F)	7 of 100 (Routine)
Paducah River	United States	Record daily precipitation	15.2 mm (0.6 in)	7 of 100 (Routine)

Counts by Type and Timescale

90 records

Records set or tied on 18 August 1923 by type: Highest daily maximum 7, Lowest daily maximum 12, Highest daily minimum 11, Lowest daily minimum 32, Heaviest daily rainfall 28.

Records on 18 August 1923 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	12
Highest daily minimum	11
Lowest daily minimum	32
Heaviest daily rainfall	28
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 1923 by timescale: all-time 1, monthly 4, daily 85.

How Much Records Were Beaten By

70 broken records

Margins by which the 70 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 43.2. Ties are not counted.

Top 20 by Significance

18 August 1923

Top 20 records on 18 August 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1923	Robben Island (Vrt), ZA	daily rain	41.4 mm (1.6 in)	30.7 mm (1.2 in)	25 years	50 of 100 (Notable)
18 August 1923	Kalmar_D, SE	daily rain	30.8 mm (1.2 in)	16.6 mm (0.7 in)	18 years	39 of 100 (Notable)
18 August 1923	Pine Hill Railway Station, AU	daily rain	27.9 mm (1.1 in)	27.9 mm (1.1 in)	32 years	33 of 100 (Routine)
18 August 1923	Gospic, HR	daily rain	83.0 mm (3.3 in)	43.2 mm (1.7 in)	6 years	32 of 100 (Routine)
18 August 1923	Middletown 4 W, US	daily low min	3.9 C (39.0 F)	4.4 C (7.9 F)	23 years	22 of 100 (Routine)
18 August 1923	Setauket Strong, US	monthly low min	8.9 C (48.0 F)	1.1 C (2.0 F)	17 years	22 of 100 (Routine)
18 August 1923	Euston Station, AU	daily rain	3.0 mm (0.12 in)	3.0 mm (0.12 in)	40 years	20 of 100 (Routine)
18 August 1923	Storrs, US	daily low min	6.1 C (43.0 F)	3.3 C (5.9 F)	26 years	20 of 100 (Routine)
18 August 1923	Spokane Intl AP, US	monthly high min	21.7 C (71.1 F)	0.6 C (1.1 F)	22 years	20 of 100 (Routine)
18 August 1923	Low Isles Lighthouse, AU	daily rain	10.2 mm (0.4 in)	5.1 mm (0.20 in)	18 years	19 of 100 (Routine)
18 August 1923	Townsville Pilot Station, AU	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	47 years	19 of 100 (Routine)
18 August 1923	Lakefield, CA	daily low min	6.7 C (44.1 F)	1.6 C (2.9 F)	36 years	19 of 100 (Routine)
18 August 1923	Robertson, ZA	daily rain	2.5 mm (0.10 in)	1.2 mm (0.05 in)	43 years	19 of 100 (Routine)
18 August 1923	Springbok, ZA	daily rain	15.7 mm (0.6 in)	4.3 mm (0.17 in)	35 years	19 of 100 (Routine)
18 August 1923	Macksville 8 NNE, US	daily low min	11.1 C (52.0 F)	2.8 C (5.0 F)	29 years	19 of 100 (Routine)
18 August 1923	State UNIV, US	daily high min	27.2 C (81.0 F)	3.3 C (5.9 F)	4 years	19 of 100 (Routine)
18 August 1923	Innisfail, AU	daily rain	67.3 mm (2.6 in)	15.2 mm (0.6 in)	28 years	18 of 100 (Routine)
18 August 1923	Eersterivier (Bos), ZA	daily rain	24.1 mm (0.9 in)	11.7 mm (0.5 in)	6 years	18 of 100 (Routine)
18 August 1923	Halmstad, SE	daily low max	15.0 C (59.0 F)	1.0 C (1.8 F)	37 years	18 of 100 (Routine)
18 August 1923	Earlington, US	daily rain	29.2 mm (1.1 in)	11.9 mm (0.5 in)	20 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 90 records.

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

Records on 08-18 in each year
Year	Records
1797	2
1805	1
1816	1
1827	1
1829	1
1830	1
1833	1
1841	1
1844	1
1845	3
1846	1
1847	1
1849	1
1851	1
1852	1
1853	1
1854	2
1855	1
1856	1
1861	1
1864	2
1866	1
1868	2
1869	1
1870	2
1872	1
1873	1
1875	3
1876	1
1878	1
1879	2
1883	3
1885	3
1886	3
1887	3
1888	2
1889	1
1890	1
1891	2
1892	6
1893	4
1894	4
1895	1
1898	4
1899	6
1900	2
1901	10
1902	8
1903	6
1904	8
1905	10
1906	40
1907	7
1908	21
1909	24
1910	16
1911	11
1912	21
1913	43
1914	37
1915	60
1916	71
1917	70
1918	53
1919	34
1920	51
1921	39
1922	129
1923	90
1924	225
1925	300
1926	168
1927	269
1928	141
1929	181
1930	150
1931	241
1932	382
1933	431
1934	638
1935	424
1936	766
1937	308
1938	243
1939	381
1940	434
1941	467
1942	333
1943	738
1944	325
1945	400
1946	416
1947	958
1948	315
1949	393
1950	683
1951	355
1952	405
1953	323
1954	622
1955	795
1956	580
1957	380
1958	580
1959	537
1960	599
1961	415
1962	428
1963	760
1964	443
1965	525
1966	573
1967	623
1968	795
1969	530
1970	597
1971	381
1972	493
1973	734
1974	639
1975	844
1976	917
1977	1,112
1978	854
1979	1,309
1980	771
1981	1,386
1982	563
1983	1,420
1984	600
1985	765
1986	861
1987	1,609
1988	1,351
1989	952
1990	920
1991	533
1992	1,497
1993	706
1994	1,027
1995	1,882
1996	760
1997	1,191
1998	923
1999	888
2000	1,183
2001	1,036
2002	1,306
2003	860
2004	1,050
2005	865
2006	842
2007	1,116
2008	1,265
2009	839
2010	1,167
2011	1,239
2012	1,247
2013	752
2014	751
2015	880
2016	704
2017	565
2018	462
2019	615
2020	1,541
2021	1,118
2022	1,237
2023	1,094
2024	696
2025	455
2026	545

Download the Data

Data for records on 1923-08-18: 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).

Histogram of margins by which records were beaten on 18 August 1923
Margin	Records
0 to 10	62
10 to 20	5
20 to 30	1
30 to 40	1
40 to 50	1