Weather Records on 20 September 2020

630 weather records were set or tied worldwide on 20 September 2020. Highest significance: Wilcannia (Mount Murchison), AU.

Key Facts for 20 September 2020

On 20 September 2020, 630 weather records were set or tied at long-record stations worldwide.
204 were record highs and 269 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 16 monthly and 614 daily.
Wilcannia (Mount Murchison) set a daily record precipitation of 39.4 mm (1.6 in) on 20 September 2020.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 441 records.

Record Map

630 stations

630 station records on 20 September 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wilcannia (Mount Murchison)	Australia	Record daily precipitation	39.4 mm (1.6 in)	76 of 100 (Major)
Ivanhoe (Baden Park)	Australia	Record daily precipitation	42.0 mm (1.7 in)	75 of 100 (Major)
Broken Hill (Langawirra)	Australia	Record daily precipitation	43.4 mm (1.7 in)	72 of 100 (Major)
Sunnyside	Australia	Record daily precipitation	39.0 mm (1.5 in)	71 of 100 (Major)
Youngs Siding	Australia	Record daily precipitation	39.6 mm (1.6 in)	70 of 100 (Major)
Euston (Sunnyside)	Australia	Record daily precipitation	30.0 mm (1.2 in)	64 of 100 (Major)
Mangalore/Bajpe	India	Record daily precipitation	217.4 mm (8.6 in)	64 of 100 (Major)
Boolcoomatta	Australia	Record daily precipitation	51.4 mm (2.0 in)	62 of 100 (Major)
Barcaldine Downs	Australia	Record daily precipitation	44.0 mm (1.7 in)	59 of 100 (Notable)
Hatfield (Benilkie)	Australia	Record daily precipitation	38.0 mm (1.5 in)	58 of 100 (Notable)
Little Grove	Australia	Record daily precipitation	50.4 mm (2.0 in)	57 of 100 (Notable)
Mooleulooloo	Australia	Record daily precipitation	77.2 mm (3.0 in)	57 of 100 (Notable)
Seaside	United States	Record daily precipitation	69.9 mm (2.8 in)	57 of 100 (Notable)
Springleigh	Australia	Record daily precipitation	41.0 mm (1.6 in)	55 of 100 (Notable)
Broken Hill (Waterbag)	Australia	Record daily precipitation	28.4 mm (1.1 in)	53 of 100 (Notable)
Live Oak	United States	Record low maximum temperature	22.8 C (73.0 F)	53 of 100 (Notable)
Bobadah (Pretty View)	Australia	Record daily precipitation	31.6 mm (1.2 in)	52 of 100 (Notable)
Laghouat	Algeria	Record high minimum temperature	25.7 C (78.3 F)	51 of 100 (Notable)
Kozhikode	India	Record daily precipitation	94.0 mm (3.7 in)	51 of 100 (Notable)
Franklin 3 NW	United States	Record low maximum temperature	22.2 C (72.0 F)	50 of 100 (Notable)
Biloxi	United States	Record low maximum temperature	20.6 C (69.1 F)	50 of 100 (Notable)
Hillston Airport	Australia	Record daily precipitation	34.0 mm (1.3 in)	49 of 100 (Notable)
Scipio	United States	Record high minimum temperature	20.6 C (69.1 F)	48 of 100 (Notable)
Darwin Airport	Australia	Record daily precipitation	50.6 mm (2.0 in)	47 of 100 (Notable)
Middle Point	Australia	Record daily precipitation	38.6 mm (1.5 in)	47 of 100 (Notable)
Donaldsonville 4 SW	United States	Record low maximum temperature	21.7 C (71.1 F)	47 of 100 (Notable)
Heraklion	Greece	Record daily precipitation	54.1 mm (2.1 in)	46 of 100 (Notable)
New Orleans Audubon	United States	Record low maximum temperature	23.3 C (73.9 F)	46 of 100 (Notable)
Fayetteville (Pwc)	United States	Record low maximum temperature	17.2 C (63.0 F)	45 of 100 (Notable)
Lafayette Rgnl AP	United States	Record low maximum temperature	22.8 C (73.0 F)	45 of 100 (Notable)
Cairo 3N	United States	Record low minimum temperature	2.8 C (37.0 F)	45 of 100 (Notable)
Aibonito 1 S	Puerto Rico [United States]	Record daily precipitation	48.5 mm (1.9 in)	44 of 100 (Notable)
Lake City Exp Farm	United States	Record low minimum temperature	-3.3 C (26.1 F)	44 of 100 (Notable)
Tarboro 1 S	United States	Record low maximum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Bimbowrie	Australia	Record daily precipitation	38.2 mm (1.5 in)	43 of 100 (Notable)
Mount Victor (Mt Victor)	Australia	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
Porthill	United States	Record high minimum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
Romney 1 SW	United States	Record low minimum temperature	-0.6 C (30.9 F)	43 of 100 (Notable)
Tilpa (Trevallyn)	Australia	Record daily precipitation	25.5 mm (1.0 in)	42 of 100 (Notable)
Stevensville 2SW	United States	Record low maximum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Chapel Hill 2 W	United States	Record low maximum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Louisburg	United States	Record low maximum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Batesburg	United States	Record low maximum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Purcellville	United States	Record low minimum temperature	2.2 C (36.0 F)	42 of 100 (Notable)
Saltville 1N	United States	Record low minimum temperature	4.4 C (39.9 F)	42 of 100 (Notable)
Yunta (Panaramitee)	Australia	Record daily precipitation	28.4 mm (1.1 in)	41 of 100 (Notable)
Hagerstown 1E	United States	Record low minimum temperature	1.1 C (34.0 F)	41 of 100 (Notable)
Ann Arbor U of Mich	United States	Record low minimum temperature	1.1 C (34.0 F)	41 of 100 (Notable)
Crestview FAA/AP	United States	Record low maximum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Wilcannia (Reid St)	Australia	Record daily precipitation	32.6 mm (1.3 in)	40 of 100 (Notable)
Ostrov Kotelnyj	Russia	Record high maximum temperature	7.7 C (45.9 F)	40 of 100 (Notable)
Winchester 7 SE	United States	Record low minimum temperature	0.6 C (33.1 F)	40 of 100 (Notable)
Deaver	United States	Record high minimum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Mobile	United States	Record low maximum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Carrieton (Eurelia)	Australia	Record daily precipitation	28.6 mm (1.1 in)	39 of 100 (Notable)
Ivanhoe (Mt Manara)	Australia	Record daily precipitation	32.4 mm (1.3 in)	39 of 100 (Notable)
Hatfield (Clare)	Australia	Record daily precipitation	34.0 mm (1.3 in)	39 of 100 (Notable)
Leirfjord	Norway	Record daily precipitation	55.4 mm (2.2 in)	39 of 100 (Notable)
Norwich	United States	Record low minimum temperature	-2.8 C (27.0 F)	39 of 100 (Notable)
Cornwall	United States	Record low minimum temperature	-2.2 C (28.0 F)	39 of 100 (Notable)

Counts by Type and Timescale

630 records

Records set or tied on 20 September 2020 by type: Highest daily maximum 57, Lowest daily maximum 132, Highest daily minimum 147, Lowest daily minimum 137, Heaviest daily rainfall 157.

Records on 20 September 2020 by type
Record type	Records
Highest daily maximum	57
Lowest daily maximum	132
Highest daily minimum	147
Lowest daily minimum	137
Heaviest daily rainfall	157
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 September 2020 by timescale: all-time 0, monthly 16, daily 614.

How Much Records Were Beaten By

516 broken records

Margins by which the 516 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 147.8. Ties are not counted.

Top 20 by Significance

20 September 2020

Top 20 records on 20 September 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 2020	Wilcannia (Mount Murchison), AU	daily rain	39.4 mm (1.6 in)	25.4 mm (1.0 in)	133 years	76 of 100 (Major)
20 September 2020	Ivanhoe (Baden Park), AU	daily rain	42.0 mm (1.7 in)	37.4 mm (1.5 in)	124 years	75 of 100 (Major)
20 September 2020	Broken Hill (Langawirra), AU	daily rain	43.4 mm (1.7 in)	36.5 mm (1.4 in)	74 years	72 of 100 (Major)
20 September 2020	Sunnyside, AU	daily rain	39.0 mm (1.5 in)	39.0 mm (1.5 in)	90 years	71 of 100 (Major)
20 September 2020	Youngs Siding, AU	daily rain	39.6 mm (1.6 in)	19.8 mm (0.8 in)	113 years	70 of 100 (Major)
20 September 2020	Euston (Sunnyside), AU	daily rain	30.0 mm (1.2 in)	24.9 mm (1.0 in)	61 years	64 of 100 (Major)
20 September 2020	Mangalore/Bajpe, IN	daily rain	217.4 mm (8.6 in)	147.8 mm (5.8 in)	60 years	64 of 100 (Major)
20 September 2020	Boolcoomatta, AU	monthly rain	51.4 mm (2.0 in)	9.5 mm (0.37 in)	105 years	62 of 100 (Major)
20 September 2020	Barcaldine Downs, AU	monthly rain	44.0 mm (1.7 in)	16.3 mm (0.6 in)	47 years	59 of 100 (Notable)
20 September 2020	Hatfield (Benilkie), AU	daily rain	38.0 mm (1.5 in)	13.6 mm (0.5 in)	131 years	58 of 100 (Notable)
20 September 2020	Little Grove, AU	daily rain	50.4 mm (2.0 in)	38.8 mm (1.5 in)	42 years	57 of 100 (Notable)
20 September 2020	Mooleulooloo, AU	monthly rain	77.2 mm (3.0 in)	20.6 mm (0.8 in)	40 years	57 of 100 (Notable)
20 September 2020	Seaside, US	daily rain	69.9 mm (2.8 in)	36.9 mm (1.5 in)	40 years	57 of 100 (Notable)
20 September 2020	Springleigh, AU	daily rain	41.0 mm (1.6 in)	36.5 mm (1.4 in)	24 years	55 of 100 (Notable)
20 September 2020	Broken Hill (Waterbag), AU	daily rain	28.4 mm (1.1 in)	19.5 mm (0.8 in)	74 years	53 of 100 (Notable)
20 September 2020	Live Oak, US	daily low max	22.8 C (73.0 F)	3.3 C (5.9 F)	107 years	53 of 100 (Notable)
20 September 2020	Bobadah (Pretty View), AU	daily rain	31.6 mm (1.2 in)	22.5 mm (0.9 in)	64 years	52 of 100 (Notable)
20 September 2020	Laghouat, DZ	daily high min	25.7 C (78.3 F)	3.7 C (6.7 F)	114 years	51 of 100 (Notable)
20 September 2020	Kozhikode, IN	daily rain	94.0 mm (3.7 in)	22.6 mm (0.9 in)	119 years	51 of 100 (Notable)
20 September 2020	Franklin 3 NW, US	daily low max	22.2 C (72.0 F)	2.8 C (5.0 F)	120 years	50 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 2020

Records set or tied on this calendar date in each year from 1812 to 2020. 2020 had 630 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 2020-09-20: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	493
20 to 40	21
40 to 60	1
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1