Weather Records on 15 August 1923

116 weather records were set or tied worldwide on 15 August 1923. Highest significance: Wangerooge, DE.

Key Facts for 15 August 1923

On 15 August 1923, 116 weather records were set or tied at long-record stations worldwide.
52 were record highs and 29 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 1 monthly and 114 daily.
Wangerooge set a daily record precipitation of 35.5 mm (1.4 in) on 15 August 1923.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

116 stations

116 station records on 15 August 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 August 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wangerooge	Germany	Record daily precipitation	35.5 mm (1.4 in)	47 of 100 (Notable)
Putten (Gld)	Netherlands	Record daily precipitation	27.0 mm (1.1 in)	42 of 100 (Notable)
New Smyrna Beach	United States	Record high maximum temperature	38.9 C (102.0 F)	34 of 100 (Routine)
Tallinn	Estonia	Record daily precipitation	49.0 mm (1.9 in)	33 of 100 (Routine)
Husum	Germany	Record daily precipitation	28.8 mm (1.1 in)	33 of 100 (Routine)
Kirchdorf/Poel	Germany	Record daily precipitation	28.7 mm (1.1 in)	33 of 100 (Routine)
Geneva	United States	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Madrid	United States	Record daily precipitation	34.8 mm (1.4 in)	27 of 100 (Routine)
Halifax	Canada	Record low maximum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Heerde	Netherlands	Record daily precipitation	26.5 mm (1.0 in)	25 of 100 (Routine)
Innsbruck	Austria	Record high maximum temperature	33.4 C (92.1 F)	24 of 100 (Routine)
Weissenburg	Germany	Record high maximum temperature	34.1 C (93.4 F)	24 of 100 (Routine)
Atlantic City Marina	United States	Record high maximum temperature	32.2 C (90.0 F)	24 of 100 (Routine)
Yarmouth	Canada	Record low maximum temperature	14.4 C (57.9 F)	23 of 100 (Routine)
Baltimore Customs House	United States	Record high maximum temperature	33.3 C (91.9 F)	23 of 100 (Routine)
Karlsruhe	Germany	Record high maximum temperature	33.8 C (92.8 F)	22 of 100 (Routine)
Miles City	United States	Record low maximum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record low maximum temperature	8.7 C (47.7 F)	21 of 100 (Routine)
Saint John	Canada	Record low maximum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
Winterswijk	Netherlands	Record daily precipitation	23.7 mm (0.9 in)	20 of 100 (Routine)
Port Lincoln (Woolga)	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Newport	United States	Record high minimum temperature	26.1 C (79.0 F)	20 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	8.9 C (48.0 F)	19 of 100 (Routine)
Scottsbluff W B Heilig Fld AP	United States	Record daily precipitation	26.9 mm (1.1 in)	19 of 100 (Routine)
Bass (Kilcunda)	Australia	Record daily precipitation	21.1 mm (0.8 in)	18 of 100 (Routine)
Hohenpeissenberg	Germany	Record high maximum temperature	28.3 C (82.9 F)	18 of 100 (Routine)
Macksville 8 NNE	United States	Record high maximum temperature	42.8 C (109.0 F)	18 of 100 (Routine)
Cooperstown	United States	Record low minimum temperature	3.3 C (37.9 F)	18 of 100 (Routine)
Neerim	Australia	Record daily precipitation	15.2 mm (0.6 in)	17 of 100 (Routine)
Stoney Creek	Canada	Record low maximum temperature	20.0 C (68.0 F)	17 of 100 (Routine)
Fredericton Unb	Canada	Record low maximum temperature	16.7 C (62.1 F)	17 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record daily precipitation	14.6 mm (0.6 in)	17 of 100 (Routine)
Schwerin	Germany	Record daily precipitation	20.0 mm (0.8 in)	17 of 100 (Routine)
Cape May 2 NW	United States	Record high maximum temperature	33.9 C (93.0 F)	17 of 100 (Routine)
Marshall	United States	Record daily precipitation	25.4 mm (1.0 in)	17 of 100 (Routine)
Anticosti Heath Point	Canada	Record daily precipitation	25.4 mm (1.0 in)	16 of 100 (Routine)
Ulan-Ude	Russia	Record daily precipitation	18.9 mm (0.7 in)	16 of 100 (Routine)
Eastport	United States	Record low maximum temperature	13.9 C (57.0 F)	16 of 100 (Routine)
Leongatha Sth Gippsland Water	Australia	Record daily precipitation	16.3 mm (0.6 in)	15 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high maximum temperature	31.5 C (88.7 F)	15 of 100 (Routine)
Atyrau	Kazakhstan	Record daily precipitation	4.3 mm (0.17 in)	15 of 100 (Routine)
Gainesville UNIV of Fl	United States	Record daily precipitation	39.6 mm (1.6 in)	15 of 100 (Routine)
Sonnblick	Austria	Record high maximum temperature	8.4 C (47.1 F)	14 of 100 (Routine)
Lucknow	Canada	Record low maximum temperature	17.8 C (64.0 F)	14 of 100 (Routine)
Chatham	Canada	Record low maximum temperature	16.1 C (61.0 F)	14 of 100 (Routine)
Mena	United States	Record high maximum temperature	40.6 C (105.1 F)	14 of 100 (Routine)
Hutchinson River	United States	Record high maximum temperature	42.2 C (108.0 F)	14 of 100 (Routine)
Sedan	United States	Record high maximum temperature	42.8 C (109.0 F)	14 of 100 (Routine)
Elizabeth	United States	Record high maximum temperature	33.3 C (91.9 F)	14 of 100 (Routine)
Ottawa Cda	Canada	Record low maximum temperature	18.9 C (66.0 F)	13 of 100 (Routine)
Wrixum/Fohr	Germany	Record daily precipitation	14.6 mm (0.6 in)	13 of 100 (Routine)
Goldberg	Germany	Record daily precipitation	18.8 mm (0.7 in)	13 of 100 (Routine)
Rogers	United States	Record high maximum temperature	39.4 C (102.9 F)	13 of 100 (Routine)
Genoa 2 W	United States	Record daily precipitation	12.7 mm (0.5 in)	13 of 100 (Routine)
Florence	United States	Record low minimum temperature	1.7 C (35.1 F)	13 of 100 (Routine)
Ulmarra (Newsagency)	Australia	Record daily precipitation	9.1 mm (0.36 in)	12 of 100 (Routine)
Sandvig	Denmark	Record daily precipitation	16.6 mm (0.7 in)	12 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high maximum temperature	32.7 C (90.9 F)	12 of 100 (Routine)
Leroy 5 WSW	United States	Record daily precipitation	16.0 mm (0.6 in)	12 of 100 (Routine)
Darlington	United States	Record high maximum temperature	34.4 C (93.9 F)	12 of 100 (Routine)

Counts by Type and Timescale

116 records

Records set or tied on 15 August 1923 by type: Highest daily maximum 34, Lowest daily maximum 19, Highest daily minimum 18, Lowest daily minimum 10, Heaviest daily rainfall 35.

Records on 15 August 1923 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	19
Highest daily minimum	18
Lowest daily minimum	10
Heaviest daily rainfall	35
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 August 1923 by timescale: all-time 1, monthly 1, daily 114.

How Much Records Were Beaten By

89 broken records

Margins by which the 89 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 31.5. Ties are not counted.

Top 20 by Significance

15 August 1923

Top 20 records on 15 August 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 1923	Wangerooge, DE	daily rain	35.5 mm (1.4 in)	25.0 mm (1.0 in)	16 years	47 of 100 (Notable)
15 August 1923	Putten (Gld), NL	daily rain	27.0 mm (1.1 in)	14.8 mm (0.6 in)	49 years	42 of 100 (Notable)
15 August 1923	New Smyrna Beach, US	all-time high max	38.9 C (102.0 F)	1.1 C (2.0 F)	22 years	34 of 100 (Routine)
15 August 1923	Tallinn, EE	monthly rain	49.0 mm (1.9 in)	4.4 mm (0.17 in)	37 years	33 of 100 (Routine)
15 August 1923	Husum, DE	daily rain	28.8 mm (1.1 in)	14.2 mm (0.6 in)	31 years	33 of 100 (Routine)
15 August 1923	Kirchdorf/Poel, DE	daily rain	28.7 mm (1.1 in)	12.5 mm (0.5 in)	8 years	33 of 100 (Routine)
15 August 1923	Geneva, US	daily rain	47.0 mm (1.9 in)	31.5 mm (1.2 in)	24 years	30 of 100 (Routine)
15 August 1923	Madrid, US	daily rain	34.8 mm (1.4 in)	21.6 mm (0.9 in)	10 years	27 of 100 (Routine)
15 August 1923	Halifax, CA	daily low max	16.1 C (61.0 F)	1.7 C (3.1 F)	50 years	25 of 100 (Routine)
15 August 1923	Heerde, NL	daily rain	26.5 mm (1.0 in)	10.8 mm (0.4 in)	21 years	25 of 100 (Routine)
15 August 1923	Innsbruck, AT	daily high max	33.4 C (92.1 F)	4.4 C (7.9 F)	34 years	24 of 100 (Routine)
15 August 1923	Weissenburg, DE	daily high max	34.1 C (93.4 F)	4.5 C (8.1 F)	30 years	24 of 100 (Routine)
15 August 1923	Atlantic City Marina, US	daily high max	32.2 C (90.0 F)	1.6 C (2.9 F)	46 years	24 of 100 (Routine)
15 August 1923	Yarmouth, CA	daily low max	14.4 C (57.9 F)	1.7 C (3.1 F)	36 years	23 of 100 (Routine)
15 August 1923	Baltimore Customs House, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	50 years	23 of 100 (Routine)
15 August 1923	Karlsruhe, DE	daily high max	33.8 C (92.8 F)	1.8 C (3.2 F)	46 years	22 of 100 (Routine)
15 August 1923	Miles City, US	daily low max	18.9 C (66.0 F)	5.5 C (9.9 F)	29 years	22 of 100 (Routine)
15 August 1923	Hobart (Ellerslie Road), AU	daily low max	8.7 C (47.7 F)	1.7 C (3.1 F)	37 years	21 of 100 (Routine)
15 August 1923	Saint John, CA	daily low max	15.0 C (59.0 F)	1.1 C (2.0 F)	45 years	21 of 100 (Routine)
15 August 1923	Winterswijk, NL	daily rain	23.7 mm (0.9 in)	11.7 mm (0.5 in)	41 years	20 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

1793 to 1923

Records set or tied on this calendar date in each year from 1793 to 1923. 1923 had 116 records.

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

Records on 08-15 in each year
Year	Records
1793	2
1802	1
1805	1
1812	1
1821	1
1838	2
1839	1
1841	1
1844	1
1845	3
1852	1
1854	1
1856	1
1858	1
1861	3
1867	1
1868	2
1869	1
1873	2
1875	1
1876	2
1877	1
1878	1
1879	1
1880	3
1881	2
1882	2
1883	1
1884	2
1885	3
1886	1
1887	1
1888	3
1890	2
1891	2
1892	3
1893	3
1895	1
1896	9
1897	3
1898	1
1899	2
1900	6
1901	5
1902	10
1903	5
1904	17
1905	26
1906	8
1907	14
1908	15
1909	30
1910	16
1911	26
1912	34
1913	42
1914	11
1915	26
1916	223
1917	32
1918	23
1919	22
1920	59
1921	55
1922	86
1923	116
1924	220
1925	91
1926	115
1927	223
1928	271
1929	586
1930	274
1931	351
1932	368
1933	268
1934	992
1935	414
1936	867
1937	574
1938	681
1939	450
1940	372
1941	289
1942	377
1943	426
1944	610
1945	433
1946	285
1947	559
1948	366
1949	559
1950	317
1951	597
1952	596
1953	449
1954	481
1955	539
1956	390
1957	355
1958	1,092
1959	515
1960	417
1961	704
1962	1,052
1963	972
1964	1,185
1965	535
1966	340
1967	687
1968	1,002
1969	583
1970	382
1971	899
1972	613
1973	499
1974	512
1975	490
1976	1,345
1977	550
1978	841
1979	1,788
1980	745
1981	588
1982	479
1983	955
1984	622
1985	915
1986	1,283
1987	1,098
1988	1,479
1989	495
1990	758
1991	778
1992	1,638
1993	831
1994	1,073
1995	1,298
1996	929
1997	927
1998	861
1999	956
2000	932
2001	1,254
2002	1,307
2003	1,248
2004	1,424
2005	1,067
2006	923
2007	1,317
2008	964
2009	1,038
2010	1,622
2011	770
2012	654
2013	711
2014	583
2015	759
2016	707
2017	532
2018	328
2019	435
2020	1,327
2021	900
2022	692
2023	1,414
2024	729
2025	772
2026	975

Download the Data

Data for records on 1923-08-15: 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	69
5 to 10	10
10 to 15	6
15 to 20	1
20 to 25	1
25 to 30	1
30 to 35	1