Weather Records on 30 September 1923

183 weather records were set or tied worldwide on 30 September 1923. Highest significance: Algona, US.

Key Facts for 30 September 1923

On 30 September 1923, 183 weather records were set or tied at long-record stations worldwide.
43 were record highs and 10 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 182 daily.
Algona set a daily record precipitation of 87.6 mm (3.4 in) on 30 September 1923.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 441 records.

Record Map

183 stations

183 station records on 30 September 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Algona	United States	Record daily precipitation	87.6 mm (3.4 in)	50 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	53.3 mm (2.1 in)	47 of 100 (Notable)
Mount Pleasant	Australia	Record daily precipitation	30.2 mm (1.2 in)	38 of 100 (Notable)
Kansas City	United States	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Milan	Italy	Record high maximum temperature	26.0 C (78.8 F)	24 of 100 (Routine)
Stillwater 2 W	United States	Record daily precipitation	51.3 mm (2.0 in)	21 of 100 (Routine)
Adelaide (Salisbury Bowling Cl	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Minlaton	Australia	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Adelaide (Tea Tree Gully Counc	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Willunga	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Edithburgh Post Office	Australia	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Meningie	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Bordertown	Australia	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Dingo Vale	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Gumeracha	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Cape Jervis Lighthouse	Australia	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Carapook (the Gums)	Australia	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Beachport	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Beaufort (Wongan)	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Port Victoria	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
North Adelaide	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Sedan	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Coonalpyn	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Streatham (Pretty Tower)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Casterton (Roseneath)	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Warooka	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Two Wells	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Macclesfield	Australia	Record daily precipitation	26.4 mm (1.0 in)	20 of 100 (Routine)
Meadows	Australia	Record daily precipitation	27.9 mm (1.1 in)	20 of 100 (Routine)
Cooke Plains	Australia	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Sevastopol',Mgs	Ukraine	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)
Port Lincoln (Woolga)	Australia	Record daily precipitation	19.8 mm (0.8 in)	19 of 100 (Routine)
Gawler (Loos)	Australia	Record daily precipitation	7.1 mm (0.28 in)	19 of 100 (Routine)
Gawler Council Depot	Australia	Record daily precipitation	8.6 mm (0.34 in)	19 of 100 (Routine)
Lobethal	Australia	Record daily precipitation	22.4 mm (0.9 in)	19 of 100 (Routine)
Frances	Australia	Record daily precipitation	11.7 mm (0.5 in)	19 of 100 (Routine)
Pyramid Hill	Australia	Record daily precipitation	14.5 mm (0.6 in)	19 of 100 (Routine)
Benwerrin	Australia	Record daily precipitation	33.0 mm (1.3 in)	19 of 100 (Routine)
Steffenville	United States	Record daily precipitation	36.8 mm (1.4 in)	19 of 100 (Routine)
Coulta	Australia	Record daily precipitation	7.9 mm (0.31 in)	18 of 100 (Routine)
Farrell Flat	Australia	Record daily precipitation	9.1 mm (0.36 in)	18 of 100 (Routine)
Kanmantoo	Australia	Record daily precipitation	14.0 mm (0.6 in)	18 of 100 (Routine)
Mount Barker	Australia	Record daily precipitation	19.8 mm (0.8 in)	18 of 100 (Routine)
Yankalilla (Woodvale)	Australia	Record daily precipitation	11.9 mm (0.5 in)	18 of 100 (Routine)
Gredgwin (Barraport North)	Australia	Record daily precipitation	9.1 mm (0.36 in)	18 of 100 (Routine)
Halls Gap	Australia	Record daily precipitation	19.1 mm (0.8 in)	18 of 100 (Routine)
Wartook Reservoir	Australia	Record daily precipitation	22.4 mm (0.9 in)	18 of 100 (Routine)
Neerim	Australia	Record daily precipitation	35.6 mm (1.4 in)	18 of 100 (Routine)
Oregon	United States	Record daily precipitation	133.6 mm (5.3 in)	18 of 100 (Routine)
Mount Wedge	Australia	Record daily precipitation	11.2 mm (0.4 in)	17 of 100 (Routine)
Melrose (Para Gums)	Australia	Record daily precipitation	8.1 mm (0.32 in)	17 of 100 (Routine)
Mundoora	Australia	Record daily precipitation	14.2 mm (0.6 in)	17 of 100 (Routine)
Mallala	Australia	Record daily precipitation	8.9 mm (0.35 in)	17 of 100 (Routine)
Adelaide (Pooraka)	Australia	Record daily precipitation	8.9 mm (0.35 in)	17 of 100 (Routine)
Virginia Sheedy Road	Australia	Record daily precipitation	14.0 mm (0.6 in)	17 of 100 (Routine)
Bridgewater	Australia	Record daily precipitation	24.9 mm (1.0 in)	17 of 100 (Routine)
Clarendon	Australia	Record daily precipitation	15.7 mm (0.6 in)	17 of 100 (Routine)
Yankalilla	Australia	Record daily precipitation	10.7 mm (0.4 in)	17 of 100 (Routine)
Cantara	Australia	Record daily precipitation	13.7 mm (0.5 in)	17 of 100 (Routine)
Bartow 1SE	United States	Record low minimum temperature	16.7 C (62.1 F)	17 of 100 (Routine)

Counts by Type and Timescale

183 records

Records set or tied on 30 September 1923 by type: Highest daily maximum 19, Lowest daily maximum 2, Highest daily minimum 24, Lowest daily minimum 8, Heaviest daily rainfall 130.

Records on 30 September 1923 by type
Record type	Records
Highest daily maximum	19
Lowest daily maximum	2
Highest daily minimum	24
Lowest daily minimum	8
Heaviest daily rainfall	130
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 September 1923 by timescale: all-time 0, monthly 1, daily 182.

How Much Records Were Beaten By

154 broken records

Margins by which the 154 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 57.1. Ties are not counted.

Top 20 by Significance

30 September 1923

Top 20 records on 30 September 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1923	Algona, US	daily rain	87.6 mm (3.4 in)	57.1 mm (2.2 in)	29 years	50 of 100 (Notable)
30 September 1923	Aberdeen, US	daily rain	53.3 mm (2.1 in)	41.9 mm (1.6 in)	17 years	47 of 100 (Notable)
30 September 1923	Mount Pleasant, AU	daily rain	30.2 mm (1.2 in)	19.3 mm (0.8 in)	32 years	38 of 100 (Notable)
30 September 1923	Kansas City, US	daily rain	64.0 mm (2.5 in)	50.8 mm (2.0 in)	17 years	34 of 100 (Routine)
30 September 1923	Milan, IT	daily high max	26.0 C (78.8 F)	0.3 C (0.5 F)	48 years	24 of 100 (Routine)
30 September 1923	Stillwater 2 W, US	daily rain	51.3 mm (2.0 in)	37.3 mm (1.5 in)	0 years	21 of 100 (Routine)
30 September 1923	Adelaide (Salisbury Bowling Cl, AU	daily rain	14.7 mm (0.6 in)	10.9 mm (0.4 in)	32 years	20 of 100 (Routine)
30 September 1923	Minlaton, AU	daily rain	13.0 mm (0.5 in)	6.9 mm (0.27 in)	36 years	20 of 100 (Routine)
30 September 1923	Adelaide (Tea Tree Gully Counc, AU	daily rain	19.6 mm (0.8 in)	14.3 mm (0.6 in)	8 years	20 of 100 (Routine)
30 September 1923	Willunga, AU	daily rain	21.8 mm (0.9 in)	12.7 mm (0.5 in)	8 years	20 of 100 (Routine)
30 September 1923	Edithburgh Post Office, AU	daily rain	13.0 mm (0.5 in)	6.1 mm (0.24 in)	32 years	20 of 100 (Routine)
30 September 1923	Meningie, AU	daily rain	13.5 mm (0.5 in)	5.1 mm (0.20 in)	38 years	20 of 100 (Routine)
30 September 1923	Bordertown, AU	daily rain	14.2 mm (0.6 in)	6.6 mm (0.26 in)	33 years	20 of 100 (Routine)
30 September 1923	Dingo Vale, AU	daily rain	22.9 mm (0.9 in)	10.2 mm (0.4 in)	32 years	20 of 100 (Routine)
30 September 1923	Gumeracha, AU	daily rain	24.4 mm (1.0 in)	8.4 mm (0.33 in)	32 years	20 of 100 (Routine)
30 September 1923	Cape Jervis Lighthouse, AU	daily rain	8.9 mm (0.35 in)	5.6 mm (0.22 in)	32 years	20 of 100 (Routine)
30 September 1923	Carapook (the Gums), AU	daily rain	17.5 mm (0.7 in)	7.1 mm (0.28 in)	23 years	20 of 100 (Routine)
30 September 1923	Beachport, AU	daily rain	15.2 mm (0.6 in)	4.8 mm (0.19 in)	32 years	20 of 100 (Routine)
30 September 1923	Beaufort (Wongan), AU	daily rain	14.7 mm (0.6 in)	6.3 mm (0.25 in)	29 years	20 of 100 (Routine)
30 September 1923	Port Victoria, AU	daily rain	14.0 mm (0.6 in)	8.7 mm (0.34 in)	0 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

1806 to 1923

Records set or tied on this calendar date in each year from 1806 to 1923. 1923 had 183 records.

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

Records on 09-30 in each year
Year	Records
1806	1
1813	1
1817	1
1819	2
1834	1
1841	1
1842	1
1847	1
1853	1
1854	1
1855	1
1861	1
1862	1
1866	1
1868	2
1869	3
1870	1
1874	1
1877	1
1878	1
1881	5
1883	2
1885	1
1886	3
1887	1
1888	4
1889	1
1892	2
1893	3
1894	8
1895	5
1896	2
1897	3
1898	3
1899	12
1900	4
1901	11
1902	7
1903	9
1904	14
1905	25
1906	14
1907	16
1908	18
1909	10
1910	5
1911	47
1912	47
1913	10
1914	33
1915	84
1916	209
1917	19
1918	45
1919	28
1920	71
1921	61
1922	71
1923	183
1924	243
1925	211
1926	194
1927	486
1928	560
1929	181
1930	110
1931	225
1932	363
1933	437
1934	398
1935	209
1936	432
1937	417
1938	428
1939	371
1940	316
1941	482
1942	405
1943	404
1944	369
1945	889
1946	320
1947	433
1948	267
1949	366
1950	731
1951	597
1952	504
1953	1,136
1954	1,059
1955	406
1956	350
1957	663
1958	442
1959	1,159
1960	161
1961	618
1962	202
1963	818
1964	332
1965	459
1966	592
1967	859
1968	449
1969	465
1970	334
1971	1,359
1972	676
1973	407
1974	742
1975	686
1976	775
1977	870
1978	399
1979	479
1980	832
1981	688
1982	806
1983	1,102
1984	1,267
1985	1,892
1986	1,805
1987	649
1988	453
1989	713
1990	665
1991	949
1992	980
1993	988
1994	816
1995	1,061
1996	1,396
1997	729
1998	1,206
1999	1,144
2000	887
2001	699
2002	677
2003	1,079
2004	573
2005	761
2006	617
2007	841
2008	585
2009	826
2010	1,059
2011	1,258
2012	637
2013	634
2014	529
2015	997
2016	746
2017	404
2018	717
2019	2,192
2020	554
2021	823
2022	563
2023	1,012
2024	948
2025	559
2026	523

Download the Data

Data for records on 1923-09-30: 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 10	138
10 to 20	11
20 to 30	1
30 to 40	1
40 to 50	1
50 to 60	2