Weather Records on 20 September 1946

766 weather records were set or tied worldwide on 20 September 1946. Highest significance: White Cliffs (Tarella), AU.

Key Facts for 20 September 1946

On 20 September 1946, 766 weather records were set or tied at long-record stations worldwide.
151 were record highs and 39 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 64 monthly and 702 daily.
White Cliffs (Tarella) set a daily record precipitation of 25.4 mm (1.0 in) on 20 September 1946.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 440 records.

Record Map

766 stations

766 station records on 20 September 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
White Cliffs (Tarella)	Australia	Record daily precipitation	25.4 mm (1.0 in)	64 of 100 (Major)
Tulloona (Coolanga)	Australia	Record daily precipitation	50.8 mm (2.0 in)	64 of 100 (Major)
Oakhurst 2	Australia	Record daily precipitation	92.2 mm (3.6 in)	63 of 100 (Major)
Maryland	Australia	Record daily precipitation	59.2 mm (2.3 in)	63 of 100 (Major)
Allora Post Office	Australia	Record daily precipitation	64.0 mm (2.5 in)	62 of 100 (Major)
Nevertire (Clyde St)	Australia	Record daily precipitation	33.3 mm (1.3 in)	58 of 100 (Notable)
Mt Crosby	Australia	Record daily precipitation	47.0 mm (1.9 in)	57 of 100 (Notable)
Gayndah Post Office	Australia	Record daily precipitation	45.2 mm (1.8 in)	56 of 100 (Notable)
Enoggera Reservoir	Australia	Record daily precipitation	57.2 mm (2.3 in)	56 of 100 (Notable)
Inglewood Post Office	Australia	Record daily precipitation	61.7 mm (2.4 in)	55 of 100 (Notable)
Yamburgan	Australia	Record daily precipitation	39.1 mm (1.5 in)	55 of 100 (Notable)
Yetman (Warialda Street)	Australia	Record daily precipitation	59.9 mm (2.4 in)	55 of 100 (Notable)
University of Queensland Gatto	Australia	Record daily precipitation	71.4 mm (2.8 in)	54 of 100 (Notable)
Wolston Park Hospital	Australia	Record daily precipitation	54.9 mm (2.2 in)	54 of 100 (Notable)
Cambooya Post Office	Australia	Record daily precipitation	52.3 mm (2.1 in)	54 of 100 (Notable)
Nyngan Airport	Australia	Record daily precipitation	30.5 mm (1.2 in)	54 of 100 (Notable)
Old Koreelah (White Swamp (Ede	Australia	Record daily precipitation	90.2 mm (3.6 in)	54 of 100 (Notable)
Struth	Australia	Record daily precipitation	40.1 mm (1.6 in)	53 of 100 (Notable)
Talwood State School	Australia	Record daily precipitation	79.2 mm (3.1 in)	53 of 100 (Notable)
Quambone Station	Australia	Record daily precipitation	46.0 mm (1.8 in)	53 of 100 (Notable)
Ipswich	Australia	Record daily precipitation	64.3 mm (2.5 in)	52 of 100 (Notable)
Bald Hills Post Office	Australia	Record daily precipitation	49.8 mm (2.0 in)	52 of 100 (Notable)
Gold Creek Reservoir	Australia	Record daily precipitation	60.5 mm (2.4 in)	52 of 100 (Notable)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	49.5 mm (1.9 in)	52 of 100 (Notable)
Tara Shire Council	Australia	Record daily precipitation	42.9 mm (1.7 in)	52 of 100 (Notable)
Thulimbah	Australia	Record daily precipitation	62.7 mm (2.5 in)	52 of 100 (Notable)
Trangie (Old Bundemar)	Australia	Record daily precipitation	35.6 mm (1.4 in)	52 of 100 (Notable)
Warren (Frawley St)	Australia	Record daily precipitation	33.5 mm (1.3 in)	51 of 100 (Notable)
Mt Tamborine Fern St	Australia	Record daily precipitation	64.8 mm (2.6 in)	50 of 100 (Notable)
Warren (Eenaweena)	Australia	Record daily precipitation	46.0 mm (1.8 in)	50 of 100 (Notable)
Warren (Mumblebone)	Australia	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Wellington (Springfield)	Australia	Record daily precipitation	29.7 mm (1.2 in)	50 of 100 (Notable)
Sunnybank Bowls Club	Australia	Record daily precipitation	57.9 mm (2.3 in)	49 of 100 (Notable)
Clifton Post Office	Australia	Record daily precipitation	65.8 mm (2.6 in)	49 of 100 (Notable)
Warren (Haddon Rig)	Australia	Record daily precipitation	47.0 mm (1.9 in)	49 of 100 (Notable)
Nordby (Fano)	Denmark	Record daily precipitation	43.2 mm (1.7 in)	49 of 100 (Notable)
Tustervatnet	Norway	Record daily precipitation	38.7 mm (1.5 in)	49 of 100 (Notable)
Caboolture Post Office	Australia	Record daily precipitation	44.5 mm (1.8 in)	48 of 100 (Notable)
Mount Gravatt	Australia	Record daily precipitation	57.7 mm (2.3 in)	48 of 100 (Notable)
Brisbane Regional Office	Australia	Record daily precipitation	52.3 mm (2.1 in)	48 of 100 (Notable)
Mayne Junction	Australia	Record daily precipitation	52.3 mm (2.1 in)	48 of 100 (Notable)
Morningside	Australia	Record daily precipitation	51.8 mm (2.0 in)	48 of 100 (Notable)
Graceville Bowls Club	Australia	Record daily precipitation	48.5 mm (1.9 in)	48 of 100 (Notable)
Nyngan (Kaluga)	Australia	Record daily precipitation	36.1 mm (1.4 in)	48 of 100 (Notable)
Boonah Stark Ave	Australia	Record daily precipitation	60.7 mm (2.4 in)	47 of 100 (Notable)
Springbrook Forestry	Australia	Record daily precipitation	86.1 mm (3.4 in)	47 of 100 (Notable)
Toombul Bowls Club	Australia	Record daily precipitation	47.0 mm (1.9 in)	47 of 100 (Notable)
West Haldon	Australia	Record daily precipitation	70.1 mm (2.8 in)	47 of 100 (Notable)
Noondoo	Australia	Record daily precipitation	31.5 mm (1.2 in)	47 of 100 (Notable)
Box Cowell	Australia	Record daily precipitation	48.0 mm (1.9 in)	47 of 100 (Notable)
Glen Elgin (Glenbrook)	Australia	Record daily precipitation	42.9 mm (1.7 in)	47 of 100 (Notable)
St Petersburg	United States	Record daily precipitation	126.5 mm (5.0 in)	47 of 100 (Notable)
Woleebee Nevasa	Australia	Record daily precipitation	45.5 mm (1.8 in)	46 of 100 (Notable)
Esk Post Office	Australia	Record daily precipitation	57.2 mm (2.3 in)	46 of 100 (Notable)
Harrisville Post Office	Australia	Record daily precipitation	69.6 mm (2.7 in)	46 of 100 (Notable)
Rosewood Walloon Rd	Australia	Record daily precipitation	70.6 mm (2.8 in)	46 of 100 (Notable)
Murarrie Road Csiro	Australia	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Sandgate Post Office	Australia	Record daily precipitation	50.5 mm (2.0 in)	46 of 100 (Notable)
Dalveen	Australia	Record daily precipitation	70.9 mm (2.8 in)	46 of 100 (Notable)
Garrah (Wirringulla)	Australia	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)

Counts by Type and Timescale

766 records

Records set or tied on 20 September 1946 by type: Highest daily maximum 128, Lowest daily maximum 20, Highest daily minimum 23, Lowest daily minimum 19, Heaviest daily rainfall 575, Heaviest daily snowfall 1.

Records on 20 September 1946 by type
Record type	Records
Highest daily maximum	128
Lowest daily maximum	20
Highest daily minimum	23
Lowest daily minimum	19
Heaviest daily rainfall	575
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 20 September 1946 by timescale: all-time 0, monthly 64, daily 702.

How Much Records Were Beaten By

716 broken records

Margins by which the 716 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.0. Ties are not counted.

Top 20 by Significance

20 September 1946

Top 20 records on 20 September 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1946	White Cliffs (Tarella), AU	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	66 years	64 of 100 (Major)
20 September 1946	Tulloona (Coolanga), AU	daily rain	50.8 mm (2.0 in)	38.1 mm (1.5 in)	62 years	64 of 100 (Major)
20 September 1946	Oakhurst 2, AU	monthly rain	92.2 mm (3.6 in)	41.4 mm (1.6 in)	34 years	63 of 100 (Major)
20 September 1946	Maryland, AU	daily rain	59.2 mm (2.3 in)	50.1 mm (2.0 in)	55 years	63 of 100 (Major)
20 September 1946	Allora Post Office, AU	daily rain	64.0 mm (2.5 in)	39.9 mm (1.6 in)	55 years	62 of 100 (Major)
20 September 1946	Nevertire (Clyde St), AU	daily rain	33.3 mm (1.3 in)	30.8 mm (1.2 in)	43 years	58 of 100 (Notable)
20 September 1946	Mt Crosby, AU	daily rain	47.0 mm (1.9 in)	36.8 mm (1.4 in)	40 years	57 of 100 (Notable)
20 September 1946	Gayndah Post Office, AU	daily rain	45.2 mm (1.8 in)	42.7 mm (1.7 in)	37 years	56 of 100 (Notable)
20 September 1946	Enoggera Reservoir, AU	daily rain	57.2 mm (2.3 in)	47.0 mm (1.9 in)	32 years	56 of 100 (Notable)
20 September 1946	Inglewood Post Office, AU	daily rain	61.7 mm (2.4 in)	43.9 mm (1.7 in)	31 years	55 of 100 (Notable)
20 September 1946	Yamburgan, AU	daily rain	39.1 mm (1.5 in)	39.1 mm (1.5 in)	47 years	55 of 100 (Notable)
20 September 1946	Yetman (Warialda Street), AU	daily rain	59.9 mm (2.4 in)	40.3 mm (1.6 in)	31 years	55 of 100 (Notable)
20 September 1946	University of Queensland Gatto, AU	monthly rain	71.4 mm (2.8 in)	25.2 mm (1.0 in)	28 years	54 of 100 (Notable)
20 September 1946	Wolston Park Hospital, AU	daily rain	54.9 mm (2.2 in)	50.3 mm (2.0 in)	32 years	54 of 100 (Notable)
20 September 1946	Cambooya Post Office, AU	daily rain	52.3 mm (2.1 in)	29.2 mm (1.1 in)	55 years	54 of 100 (Notable)
20 September 1946	Nyngan Airport, AU	daily rain	30.5 mm (1.2 in)	25.4 mm (1.0 in)	53 years	54 of 100 (Notable)
20 September 1946	Old Koreelah (White Swamp (Ede, AU	daily rain	90.2 mm (3.6 in)	78.0 mm (3.1 in)	32 years	54 of 100 (Notable)
20 September 1946	Struth, AU	daily rain	40.1 mm (1.6 in)	31.0 mm (1.2 in)	53 years	53 of 100 (Notable)
20 September 1946	Talwood State School, AU	monthly rain	79.2 mm (3.1 in)	40.3 mm (1.6 in)	0 years	53 of 100 (Notable)
20 September 1946	Quambone Station, AU	daily rain	46.0 mm (1.8 in)	35.1 mm (1.4 in)	31 years	53 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

1812 to 1946

Records set or tied on this calendar date in each year from 1812 to 1946. 1946 had 766 records.

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

Records on 09-20 in each year
Year	Records
1812	1
1837	1
1840	1
1844	1
1848	2
1851	1
1852	1
1854	2
1855	1
1856	2
1859	2
1860	1
1862	1
1870	1
1871	2
1882	2
1883	1
1884	1
1886	2
1887	1
1888	2
1889	8
1891	4
1893	5
1894	1
1895	2
1896	1
1897	16
1898	4
1899	1
1900	2
1901	3
1902	3
1903	3
1904	12
1905	8
1906	22
1907	11
1908	24
1909	10
1910	8
1911	21
1912	34
1913	48
1914	28
1915	239
1916	28
1917	100
1918	59
1919	55
1920	64
1921	40
1922	52
1923	249
1924	329
1925	330
1926	129
1927	169
1928	144
1929	373
1930	102
1931	564
1932	270
1933	223
1934	349
1935	201
1936	133
1937	385
1938	506
1939	312
1940	591
1941	582
1942	436
1943	419
1944	466
1945	406
1946	766
1947	460
1948	454
1949	268
1950	435
1951	267
1952	434
1953	479
1954	628
1955	625
1956	985
1957	514
1958	410
1959	489
1960	352
1961	384
1962	707
1963	290
1964	482
1965	1,180
1966	414
1967	449
1968	617
1969	604
1970	591
1971	884
1972	582
1973	569
1974	771
1975	527
1976	375
1977	776
1978	1,216
1979	767
1980	567
1981	979
1982	911
1983	1,958
1984	895
1985	730
1986	743
1987	856
1988	698
1989	968
1990	743
1991	1,835
1992	718
1993	1,031
1994	788
1995	1,374
1996	1,077
1997	1,282
1998	1,157
1999	923
2000	908
2001	821
2002	845
2003	910
2004	1,156
2005	960
2006	732
2007	645
2008	648
2009	715
2010	1,497
2011	650
2012	549
2013	595
2014	577
2015	439
2016	778
2017	920
2018	1,020
2019	835
2020	630
2021	565
2022	786
2023	482
2024	596
2025	877
2026	682

Download the Data

Data for records on 1946-09-20: 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	540
20 to 40	143
40 to 60	27
60 to 80	4
80 to 100	1
100 to 120	1