Weather Records on 21 September 1924

291 weather records were set or tied worldwide on 21 September 1924. Highest significance: Uccle, BE.

Key Facts for 21 September 1924

On 21 September 1924, 291 weather records were set or tied at long-record stations worldwide.
107 were record highs and 19 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 283 daily.
Uccle set a daily record precipitation of 30.1 mm (1.2 in) on 21 September 1924.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 452 records.

Record Map

291 stations

291 station records on 21 September 1924 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1924: highest significance records shown on the map
Station	Country	Type	Value	Significance
Uccle	Belgium	Record daily precipitation	30.1 mm (1.2 in)	45 of 100 (Notable)
Alberni Beaver Creek	Canada	Record daily precipitation	81.3 mm (3.2 in)	45 of 100 (Notable)
Gum Lake (Albemarle)	Australia	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Storlien	Sweden	Record daily precipitation	26.0 mm (1.0 in)	40 of 100 (Notable)
Greenethorpe (Iandra)	Australia	Record daily precipitation	30.0 mm (1.2 in)	36 of 100 (Notable)
Milan 1NW	United States	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Kennebec	United States	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Tumut (Wattle Cres)	Australia	Record daily precipitation	29.7 mm (1.2 in)	35 of 100 (Notable)
Morris W Cntrl Rsch & Outreach	United States	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
Two Harbors	United States	Record daily precipitation	58.4 mm (2.3 in)	33 of 100 (Routine)
Yellowin	Australia	Record daily precipitation	31.0 mm (1.2 in)	30 of 100 (Routine)
Mandamar	Australia	Record daily precipitation	27.2 mm (1.1 in)	30 of 100 (Routine)
Greensburg	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Toledo Blade	United States	Record daily precipitation	45.2 mm (1.8 in)	30 of 100 (Routine)
Huron Rgnl AP	United States	Record daily precipitation	29.2 mm (1.1 in)	30 of 100 (Routine)
Fergus Falls	United States	Record daily precipitation	32.3 mm (1.3 in)	27 of 100 (Routine)
Howard	United States	Record daily precipitation	35.8 mm (1.4 in)	27 of 100 (Routine)
Clinton	United States	Record daily precipitation	101.6 mm (4.0 in)	27 of 100 (Routine)
Escanaba	United States	Record daily precipitation	32.8 mm (1.3 in)	27 of 100 (Routine)
Weissenburg	Germany	Record high minimum temperature	16.9 C (62.4 F)	26 of 100 (Routine)
Mellette 4 W	United States	Record daily precipitation	28.7 mm (1.1 in)	26 of 100 (Routine)
Montevideo 1SW	United States	Record daily precipitation	41.9 mm (1.6 in)	25 of 100 (Routine)
Putten (Gld)	Netherlands	Record daily precipitation	30.0 mm (1.2 in)	24 of 100 (Routine)
Beechworth Composite	Australia	Record daily precipitation	32.5 mm (1.3 in)	23 of 100 (Routine)
Bird Island	United States	Record daily precipitation	41.4 mm (1.6 in)	23 of 100 (Routine)
Collegeville St John's	United States	Record daily precipitation	37.8 mm (1.5 in)	23 of 100 (Routine)
Hernando	United States	Record high minimum temperature	25.6 C (78.1 F)	23 of 100 (Routine)
Aberdeen	United States	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high minimum temperature	16.7 C (62.1 F)	22 of 100 (Routine)
Salzburg	Austria	Record high maximum temperature	27.6 C (81.7 F)	22 of 100 (Routine)
Lynd #2	United States	Record daily precipitation	32.8 mm (1.3 in)	22 of 100 (Routine)
Mackay Post Office	Australia	Record high maximum temperature	32.0 C (89.6 F)	21 of 100 (Routine)
Berlin-Dahlem	Germany	Record high minimum temperature	16.9 C (62.4 F)	21 of 100 (Routine)
Plauen	Germany	Record high minimum temperature	15.8 C (60.4 F)	21 of 100 (Routine)
Visby_Flygplats	Sweden	Record high minimum temperature	12.8 C (55.0 F)	21 of 100 (Routine)
Woodville 4 ESE	United States	Record high maximum temperature	37.2 C (99.0 F)	21 of 100 (Routine)
Flandreau	United States	Record daily precipitation	26.9 mm (1.1 in)	21 of 100 (Routine)
Wantiool (Caithness)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Cobar (Kergunyah)	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Curraweena	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Barmedman Post Office	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Maragle Station	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
West Wyalong (Tallimbalong)	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Ter Apel	Netherlands	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Pitea	Sweden	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Condobolin Station	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Jingellic	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Maseskar	Sweden	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Lake Cargelligo Airport	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Urambie	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Chiltern (Post Office)	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Hay (Toogimbie)	Australia	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Pooncarie (Karpa Kora Station)	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Tottenham (Woodlands 1)	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Netley	Australia	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Broken Hill (Stephens Creek Re	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Forbes (Camp Street)	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Hay (Illilawa)	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Big Hill Reservoir	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

291 records

Records set or tied on 21 September 1924 by type: Highest daily maximum 32, Lowest daily maximum 3, Highest daily minimum 75, Lowest daily minimum 16, Heaviest daily rainfall 165.

Records on 21 September 1924 by type
Record type	Records
Highest daily maximum	32
Lowest daily maximum	3
Highest daily minimum	75
Lowest daily minimum	16
Heaviest daily rainfall	165
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 1924 by timescale: all-time 0, monthly 8, daily 283.

How Much Records Were Beaten By

244 broken records

Margins by which the 244 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 32.3. Ties are not counted.

Top 20 by Significance

21 September 1924

Top 20 records on 21 September 1924 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1924	Uccle, BE	daily rain	30.1 mm (1.2 in)	18.8 mm (0.7 in)	42 years	45 of 100 (Notable)
21 September 1924	Alberni Beaver Creek, CA	monthly rain	81.3 mm (3.2 in)	27.7 mm (1.1 in)	10 years	45 of 100 (Notable)
21 September 1924	Gum Lake (Albemarle), AU	daily rain	27.9 mm (1.1 in)	20.3 mm (0.8 in)	23 years	42 of 100 (Notable)
21 September 1924	Storlien, SE	daily rain	26.0 mm (1.0 in)	18.9 mm (0.7 in)	22 years	40 of 100 (Notable)
21 September 1924	Greenethorpe (Iandra), AU	daily rain	30.0 mm (1.2 in)	17.3 mm (0.7 in)	31 years	36 of 100 (Notable)
21 September 1924	Milan 1NW, US	daily rain	38.4 mm (1.5 in)	28.7 mm (1.1 in)	15 years	36 of 100 (Notable)
21 September 1924	Kennebec, US	daily rain	32.3 mm (1.3 in)	24.2 mm (1.0 in)	15 years	36 of 100 (Notable)
21 September 1924	Tumut (Wattle Cres), AU	daily rain	29.7 mm (1.2 in)	17.0 mm (0.7 in)	37 years	35 of 100 (Notable)
21 September 1924	Morris W Cntrl Rsch & Outreach, US	daily rain	50.8 mm (2.0 in)	27.9 mm (1.1 in)	15 years	34 of 100 (Routine)
21 September 1924	Two Harbors, US	daily rain	58.4 mm (2.3 in)	30.5 mm (1.2 in)	15 years	33 of 100 (Routine)
21 September 1924	Yellowin, AU	daily rain	31.0 mm (1.2 in)	14.2 mm (0.6 in)	37 years	30 of 100 (Routine)
21 September 1924	Mandamar, AU	daily rain	27.2 mm (1.1 in)	11.5 mm (0.5 in)	37 years	30 of 100 (Routine)
21 September 1924	Greensburg, US	daily rain	50.8 mm (2.0 in)	32.3 mm (1.3 in)	1 year	30 of 100 (Routine)
21 September 1924	Toledo Blade, US	daily rain	45.2 mm (1.8 in)	27.7 mm (1.1 in)	5 years	30 of 100 (Routine)
21 September 1924	Huron Rgnl AP, US	daily rain	29.2 mm (1.1 in)	12.7 mm (0.5 in)	40 years	30 of 100 (Routine)
21 September 1924	Fergus Falls, US	daily rain	32.3 mm (1.3 in)	21.1 mm (0.8 in)	15 years	27 of 100 (Routine)
21 September 1924	Howard, US	daily rain	35.8 mm (1.4 in)	22.6 mm (0.9 in)	15 years	27 of 100 (Routine)
21 September 1924	Clinton, US	monthly rain	101.6 mm (4.0 in)	8.6 mm (0.34 in)	26 years	27 of 100 (Routine)
21 September 1924	Escanaba, US	daily rain	32.8 mm (1.3 in)	19.1 mm (0.8 in)	12 years	27 of 100 (Routine)
21 September 1924	Weissenburg, DE	daily high min	16.9 C (62.4 F)	3.4 C (6.1 F)	44 years	26 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

1805 to 1924

Records set or tied on this calendar date in each year from 1805 to 1924. 1924 had 291 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	591
2026	478

Download the Data

Data for records on 1924-09-21: 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 2026-10-15 (15 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	148
5 to 10	55
10 to 15	15
15 to 20	13
20 to 25	7
25 to 30	4
30 to 35	2