Weather Records on 22 September 1940

621 weather records were set or tied worldwide on 22 September 1940. Highest significance: Medicine Hat A, CA.

Key Facts for 22 September 1940

On 22 September 1940, 621 weather records were set or tied at long-record stations worldwide.
195 were record highs and 8 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 8 monthly and 612 daily.
Medicine Hat A set a monthly record daily precipitation of 118.6 mm (4.7 in) on 22 September 1940.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 427 records.

Record Map

621 stations

621 station records on 22 September 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 September 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Medicine Hat A	Canada	Record daily precipitation	118.6 mm (4.7 in)	71 of 100 (Major)
Tumut (Wattle Cres)	Australia	Record daily precipitation	62.7 mm (2.5 in)	61 of 100 (Major)
Queanbeyan (Carwoola)	Australia	Record daily precipitation	37.6 mm (1.5 in)	57 of 100 (Notable)
Moth	India	Record daily precipitation	142.2 mm (5.6 in)	55 of 100 (Notable)
Erambie	Australia	Record daily precipitation	47.0 mm (1.9 in)	53 of 100 (Notable)
Bettowynd (Condry)	Australia	Record daily precipitation	46.2 mm (1.8 in)	53 of 100 (Notable)
Orange (Canobolas Public Schoo	Australia	Record daily precipitation	44.5 mm (1.8 in)	52 of 100 (Notable)
Burrinjuck Dam	Australia	Record daily precipitation	48.3 mm (1.9 in)	51 of 100 (Notable)
Werribee Post Office	Australia	Record daily precipitation	55.1 mm (2.2 in)	51 of 100 (Notable)
Savage	United States	Record daily precipitation	40.4 mm (1.6 in)	51 of 100 (Notable)
Warren (Haddon Rig)	Australia	Record daily precipitation	37.3 mm (1.5 in)	49 of 100 (Notable)
Argalong (the Farm)	Australia	Record daily precipitation	67.1 mm (2.6 in)	49 of 100 (Notable)
Berthong	Australia	Record daily precipitation	44.5 mm (1.8 in)	48 of 100 (Notable)
Geurie Post Office	Australia	Record daily precipitation	35.1 mm (1.4 in)	47 of 100 (Notable)
Sterkspruit	South Africa	Record daily precipitation	29.2 mm (1.1 in)	47 of 100 (Notable)
Bridgeport	United States	Record daily precipitation	65.0 mm (2.6 in)	47 of 100 (Notable)
Michelago (Soglio)	Australia	Record daily precipitation	31.8 mm (1.3 in)	45 of 100 (Notable)
Springvale	Australia	Record daily precipitation	53.8 mm (2.1 in)	45 of 100 (Notable)
Braidwood (Krawarree)	Australia	Record daily precipitation	62.7 mm (2.5 in)	44 of 100 (Notable)
Coolac (Hopewood)	Australia	Record daily precipitation	44.5 mm (1.8 in)	44 of 100 (Notable)
Bowning (Wanganui)	Australia	Record daily precipitation	36.1 mm (1.4 in)	44 of 100 (Notable)
Little River (Mount Rothwell)	Australia	Record daily precipitation	56.9 mm (2.2 in)	44 of 100 (Notable)
Bumberry	Australia	Record daily precipitation	36.8 mm (1.4 in)	43 of 100 (Notable)
Wattle Vale	Australia	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
Dublin 2SE	United States	Record daily precipitation	67.1 mm (2.6 in)	43 of 100 (Notable)
Rowena (Waroonga)	Australia	Record daily precipitation	41.7 mm (1.6 in)	42 of 100 (Notable)
Deer Park	Australia	Record daily precipitation	42.7 mm (1.7 in)	42 of 100 (Notable)
St Albans	Australia	Record daily precipitation	37.6 mm (1.5 in)	42 of 100 (Notable)
Narromine (Alagala Old)	Australia	Record daily precipitation	31.5 mm (1.2 in)	41 of 100 (Notable)
Bingara (Derra Derra)	Australia	Record daily precipitation	35.1 mm (1.4 in)	41 of 100 (Notable)
Borenore Store	Australia	Record daily precipitation	38.6 mm (1.5 in)	41 of 100 (Notable)
Obley	Australia	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Yass (Derringullen)	Australia	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Eden (Caravan Park)	Australia	Record daily precipitation	47.5 mm (1.9 in)	39 of 100 (Notable)
Jeir	Australia	Record daily precipitation	32.5 mm (1.3 in)	39 of 100 (Notable)
Laurel Hill (Kundiewa)	Australia	Record daily precipitation	45.7 mm (1.8 in)	38 of 100 (Notable)
Queanbeyan (Mount Campbell)	Australia	Record daily precipitation	31.2 mm (1.2 in)	37 of 100 (Notable)
Boorowa Post Office	Australia	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Gundagai	Australia	Record daily precipitation	38.4 mm (1.5 in)	37 of 100 (Notable)
Balliang East	Australia	Record daily precipitation	42.4 mm (1.7 in)	37 of 100 (Notable)
Bangarpet	India	Record daily precipitation	66.0 mm (2.6 in)	37 of 100 (Notable)
Blayney (Vittoria)	Australia	Record daily precipitation	28.7 mm (1.1 in)	36 of 100 (Notable)
Manildra (Hazeldale)	Australia	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Burruer (Illaroo)	Australia	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Batemans Bay Post Office	Australia	Record daily precipitation	49.5 mm (1.9 in)	36 of 100 (Notable)
Maragle Station	Australia	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Magdalena	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Jondarayan Station	Australia	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Wyanga (Barcoo)	Australia	Record daily precipitation	29.2 mm (1.1 in)	35 of 100 (Notable)
Gurley (Glenroy)	Australia	Record daily precipitation	28.2 mm (1.1 in)	35 of 100 (Notable)
Cowra Ag Research Station	Australia	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)
Cavan	Australia	Record daily precipitation	41.4 mm (1.6 in)	35 of 100 (Notable)
Steveston	Canada	Record high maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Maple Creek	Canada	Record daily precipitation	45.2 mm (1.8 in)	35 of 100 (Notable)
Perthville	Australia	Record daily precipitation	25.1 mm (1.0 in)	34 of 100 (Routine)
Wellington (Springfield)	Australia	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Barletta	South Africa	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Canning Downs	Australia	Record daily precipitation	26.9 mm (1.1 in)	33 of 100 (Routine)
Sutton Forest (Uralba)	Australia	Record daily precipitation	31.0 mm (1.2 in)	33 of 100 (Routine)
Queanbeyan Bowling Club	Australia	Record daily precipitation	32.3 mm (1.3 in)	33 of 100 (Routine)

Counts by Type and Timescale

621 records

Records set or tied on 22 September 1940 by type: Highest daily maximum 77, Lowest daily maximum 3, Highest daily minimum 118, Lowest daily minimum 5, Heaviest daily rainfall 418.

Records on 22 September 1940 by type
Record type	Records
Highest daily maximum	77
Lowest daily maximum	3
Highest daily minimum	118
Lowest daily minimum	5
Heaviest daily rainfall	418
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 22 September 1940 by timescale: all-time 1, monthly 8, daily 612.

How Much Records Were Beaten By

546 broken records

Margins by which the 546 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 124.7. Ties are not counted.

Top 20 by Significance

22 September 1940

Top 20 records on 22 September 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 September 1940	Medicine Hat A, CA	monthly rain	118.6 mm (4.7 in)	74.1 mm (2.9 in)	56 years	71 of 100 (Major)
22 September 1940	Tumut (Wattle Cres), AU	daily rain	62.7 mm (2.5 in)	44.7 mm (1.8 in)	53 years	61 of 100 (Major)
22 September 1940	Queanbeyan (Carwoola), AU	daily rain	37.6 mm (1.5 in)	32.0 mm (1.3 in)	42 years	57 of 100 (Notable)
22 September 1940	Moth, IN	daily rain	142.2 mm (5.6 in)	124.7 mm (4.9 in)	39 years	55 of 100 (Notable)
22 September 1940	Erambie, AU	daily rain	47.0 mm (1.9 in)	25.7 mm (1.0 in)	42 years	53 of 100 (Notable)
22 September 1940	Bettowynd (Condry), AU	daily rain	46.2 mm (1.8 in)	36.8 mm (1.4 in)	38 years	53 of 100 (Notable)
22 September 1940	Orange (Canobolas Public Schoo, AU	daily rain	44.5 mm (1.8 in)	35.6 mm (1.4 in)	31 years	52 of 100 (Notable)
22 September 1940	Burrinjuck Dam, AU	daily rain	48.3 mm (1.9 in)	37.1 mm (1.5 in)	29 years	51 of 100 (Notable)
22 September 1940	Werribee Post Office, AU	daily rain	55.1 mm (2.2 in)	28.9 mm (1.1 in)	24 years	51 of 100 (Notable)
22 September 1940	Savage, US	daily rain	40.4 mm (1.6 in)	37.6 mm (1.5 in)	29 years	51 of 100 (Notable)
22 September 1940	Warren (Haddon Rig), AU	daily rain	37.3 mm (1.5 in)	27.1 mm (1.1 in)	40 years	49 of 100 (Notable)
22 September 1940	Argalong (the Farm), AU	daily rain	67.1 mm (2.6 in)	59.5 mm (2.3 in)	17 years	49 of 100 (Notable)
22 September 1940	Berthong, AU	daily rain	44.5 mm (1.8 in)	27.5 mm (1.1 in)	29 years	48 of 100 (Notable)
22 September 1940	Geurie Post Office, AU	daily rain	35.1 mm (1.4 in)	29.5 mm (1.2 in)	16 years	47 of 100 (Notable)
22 September 1940	Sterkspruit, ZA	daily rain	29.2 mm (1.1 in)	26.4 mm (1.0 in)	32 years	47 of 100 (Notable)
22 September 1940	Bridgeport, US	daily rain	65.0 mm (2.6 in)	56.1 mm (2.2 in)	16 years	47 of 100 (Notable)
22 September 1940	Michelago (Soglio), AU	daily rain	31.8 mm (1.3 in)	19.9 mm (0.8 in)	49 years	45 of 100 (Notable)
22 September 1940	Springvale, AU	daily rain	53.8 mm (2.1 in)	36.5 mm (1.4 in)	23 years	45 of 100 (Notable)
22 September 1940	Braidwood (Krawarree), AU	daily rain	62.7 mm (2.5 in)	52.3 mm (2.1 in)	2 years	44 of 100 (Notable)
22 September 1940	Coolac (Hopewood), AU	daily rain	44.5 mm (1.8 in)	36.4 mm (1.4 in)	6 years	44 of 100 (Notable)

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 1940

Records set or tied on this calendar date in each year from 1793 to 1940. 1940 had 621 records.

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

Records on 09-22 in each year
Year	Records
1793	1
1796	1
1824	1
1825	1
1827	1
1830	1
1835	1
1838	1
1840	1
1842	2
1845	1
1846	1
1848	1
1851	3
1855	1
1856	1
1858	1
1863	1
1865	1
1868	1
1872	1
1874	1
1875	1
1877	4
1878	1
1881	2
1882	3
1885	1
1886	1
1888	1
1889	2
1890	2
1892	3
1893	1
1894	1
1895	7
1896	2
1897	3
1898	8
1899	12
1900	3
1901	3
1902	7
1903	4
1904	34
1905	5
1906	16
1907	12
1908	10
1909	6
1910	18
1911	17
1912	17
1913	43
1914	48
1915	23
1916	236
1917	128
1918	25
1919	64
1920	35
1921	44
1922	27
1923	118
1924	132
1925	265
1926	214
1927	160
1928	119
1929	166
1930	231
1931	732
1932	189
1933	230
1934	348
1935	231
1936	448
1937	507
1938	394
1939	266
1940	621
1941	424
1942	323
1943	266
1944	299
1945	739
1946	288
1947	583
1948	345
1949	385
1950	394
1951	419
1952	383
1953	253
1954	359
1955	584
1956	490
1957	580
1958	633
1959	416
1960	360
1961	555
1962	732
1963	351
1964	249
1965	841
1966	595
1967	507
1968	526
1969	488
1970	1,197
1971	500
1972	448
1973	509
1974	1,075
1975	591
1976	538
1977	632
1978	620
1979	991
1980	1,199
1981	754
1982	1,122
1983	2,060
1984	614
1985	820
1986	729
1987	1,300
1988	665
1989	1,155
1990	795
1991	758
1992	1,011
1993	1,448
1994	941
1995	2,498
1996	916
1997	851
1998	1,251
1999	1,172
2000	1,508
2001	604
2002	718
2003	1,472
2004	948
2005	1,155
2006	1,260
2007	896
2008	830
2009	985
2010	1,217
2011	611
2012	568
2013	673
2014	812
2015	666
2016	1,096
2017	1,272
2018	574
2019	651
2020	687
2021	432
2022	985
2023	905
2024	502
2025	387
2026	309

Download the Data

Data for records on 1940-09-22: 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 20	472
20 to 40	59
40 to 60	12
60 to 80	2
80 to 100	0
100 to 120	0
120 to 140	1