Weather Records on 21 September 2020

580 weather records were set or tied worldwide on 21 September 2020. Highest significance: Honavar, IN.

Key Facts for 21 September 2020

On 21 September 2020, 580 weather records were set or tied at long-record stations worldwide.
241 were record highs and 225 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 566 daily.
Honavar set a daily record precipitation of 119.6 mm (4.7 in) on 21 September 2020.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 450 records.

Record Map

580 stations

580 station records on 21 September 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Honavar	India	Record daily precipitation	119.6 mm (4.7 in)	60 of 100 (Major)
Poplarville Exp STN	United States	Record low maximum temperature	18.9 C (66.0 F)	54 of 100 (Notable)
Sugar Land	United States	Record daily precipitation	88.4 mm (3.5 in)	52 of 100 (Notable)
Tromso	Norway	Record daily precipitation	40.3 mm (1.6 in)	51 of 100 (Notable)
Mierkenis_A	Sweden	Record daily precipitation	31.2 mm (1.2 in)	50 of 100 (Notable)
Caroda (Roseberry Park)	Australia	Record daily precipitation	49.0 mm (1.9 in)	49 of 100 (Notable)
Texarkana Webb Fld	United States	Record daily precipitation	58.2 mm (2.3 in)	49 of 100 (Notable)
Enontekio Kilpisjarvi Kylakesk	Finland	Record daily precipitation	29.7 mm (1.2 in)	48 of 100 (Notable)
Bjorkasen	Norway	Record daily precipitation	52.8 mm (2.1 in)	47 of 100 (Notable)
Solomons	United States	Record low maximum temperature	15.0 C (59.0 F)	47 of 100 (Notable)
Niceville	United States	Record low maximum temperature	19.4 C (66.9 F)	46 of 100 (Notable)
Biloxi	United States	Record low maximum temperature	20.6 C (69.1 F)	46 of 100 (Notable)
Wilmington	Australia	Record daily precipitation	43.0 mm (1.7 in)	45 of 100 (Notable)
Middleboro	United States	Record low minimum temperature	-1.7 C (28.9 F)	45 of 100 (Notable)
Erinair	Australia	Record daily precipitation	25.6 mm (1.0 in)	44 of 100 (Notable)
Franklin 3 NW	United States	Record low maximum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Eastbourne	United Kingdom	Record high maximum temperature	23.2 C (73.8 F)	43 of 100 (Notable)
Tifton	United States	Record low maximum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Donaldsonville 4 SW	United States	Record low maximum temperature	22.2 C (72.0 F)	43 of 100 (Notable)
Lake Arthur 7 SW	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Mocksville 5SE	United States	Record low maximum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
New Orleans Audubon	United States	Record low maximum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Atmore	United States	Record low maximum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Hattiesburg 5SW	United States	Record low maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Beaumont City	United States	Record low maximum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Key West NAS	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Mobile Dwtn AP	United States	Record low maximum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Tamaru	Australia	Record daily precipitation	35.0 mm (1.4 in)	40 of 100 (Notable)
Wisley	United Kingdom	Record high maximum temperature	24.5 C (76.1 F)	40 of 100 (Notable)
Quemado	United States	Record high minimum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Denbarker	Australia	Record daily precipitation	32.8 mm (1.3 in)	39 of 100 (Notable)
Carville 2 SW	United States	Record low maximum temperature	22.8 C (73.0 F)	39 of 100 (Notable)
Angelica	United States	Record low minimum temperature	-3.9 C (25.0 F)	39 of 100 (Notable)
Rutland	United States	Record low minimum temperature	-3.3 C (26.1 F)	39 of 100 (Notable)
Houston William P Hobby AP	United States	Record daily precipitation	97.0 mm (3.8 in)	39 of 100 (Notable)
Sanford	United States	Record daily precipitation	101.6 mm (4.0 in)	38 of 100 (Notable)
Cairo 1SW	United States	Record low maximum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Cockburn	Australia	Record daily precipitation	37.0 mm (1.5 in)	35 of 100 (Notable)
Andoya	Norway	Record daily precipitation	32.3 mm (1.3 in)	35 of 100 (Notable)
Norwich	United States	Record low minimum temperature	-2.8 C (27.0 F)	35 of 100 (Notable)
Jormlien	Sweden	Record daily precipitation	25.1 mm (1.0 in)	34 of 100 (Routine)
Clarksburg Benedum AP	United States	Record low minimum temperature	2.8 C (37.0 F)	34 of 100 (Routine)
Pensacola Rgnl AP	United States	Record low maximum temperature	21.7 C (71.1 F)	34 of 100 (Routine)
Charleville Aero	Australia	Record high minimum temperature	21.6 C (70.9 F)	33 of 100 (Routine)
Leting	China	Record low minimum temperature	0.0 C (32.0 F)	33 of 100 (Routine)
Suhana	Russia	Record high maximum temperature	15.2 C (59.4 F)	33 of 100 (Routine)
Isparta	Turkey	Record high minimum temperature	17.0 C (62.6 F)	33 of 100 (Routine)
Ndjamena	Chad	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Venice	United States	Record low maximum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Bartow 1S	United States	Record low minimum temperature	-1.1 C (30.0 F)	32 of 100 (Routine)
Nymagee (Balowra)	Australia	Record daily precipitation	29.4 mm (1.2 in)	31 of 100 (Routine)
Tengchong	China	Record high maximum temperature	28.9 C (84.0 F)	31 of 100 (Routine)
Guilin	China	Record daily precipitation	67.1 mm (2.6 in)	31 of 100 (Routine)
Sheffield	United Kingdom	Record high maximum temperature	23.5 C (74.3 F)	31 of 100 (Routine)
Brewton 3 ENE	United States	Record low maximum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Cross City 1 E	United States	Record low maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Brassua Dam	United States	Record low minimum temperature	-2.8 C (27.0 F)	31 of 100 (Routine)
Jackman	United States	Record low minimum temperature	-6.1 C (21.0 F)	31 of 100 (Routine)
Elmira Corning Rgnl AP	United States	Record low minimum temperature	-2.7 C (27.1 F)	31 of 100 (Routine)
Wereroa	Australia	Record daily precipitation	47.2 mm (1.9 in)	30 of 100 (Routine)

Counts by Type and Timescale

580 records

Records set or tied on 21 September 2020 by type: Highest daily maximum 120, Lowest daily maximum 93, Highest daily minimum 121, Lowest daily minimum 132, Heaviest daily rainfall 114.

Records on 21 September 2020 by type
Record type	Records
Highest daily maximum	120
Lowest daily maximum	93
Highest daily minimum	121
Lowest daily minimum	132
Heaviest daily rainfall	114
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 2020 by timescale: all-time 0, monthly 14, daily 566.

How Much Records Were Beaten By

460 broken records

Margins by which the 460 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 82.8. Ties are not counted.

Top 20 by Significance

21 September 2020

Top 20 records on 21 September 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 2020	Honavar, IN	daily rain	119.6 mm (4.7 in)	82.8 mm (3.3 in)	60 years	60 of 100 (Major)
21 September 2020	Poplarville Exp STN, US	daily low max	18.9 C (66.0 F)	5.0 C (9.0 F)	94 years	54 of 100 (Notable)
21 September 2020	Sugar Land, US	daily rain	88.4 mm (3.5 in)	47.8 mm (1.9 in)	65 years	52 of 100 (Notable)
21 September 2020	Tromso, NO	daily rain	40.3 mm (1.6 in)	15.2 mm (0.6 in)	54 years	51 of 100 (Notable)
21 September 2020	Mierkenis_A, SE	daily rain	31.2 mm (1.2 in)	22.3 mm (0.9 in)	2 years	50 of 100 (Notable)
21 September 2020	Caroda (Roseberry Park), AU	daily rain	49.0 mm (1.9 in)	35.5 mm (1.4 in)	49 years	49 of 100 (Notable)
21 September 2020	Texarkana Webb Fld, US	daily rain	58.2 mm (2.3 in)	17.6 mm (0.7 in)	101 years	49 of 100 (Notable)
21 September 2020	Enontekio Kilpisjarvi Kylakesk, FI	monthly rain	29.7 mm (1.2 in)	7.3 mm (0.29 in)	41 years	48 of 100 (Notable)
21 September 2020	Bjorkasen, NO	daily rain	52.8 mm (2.1 in)	27.8 mm (1.1 in)	31 years	47 of 100 (Notable)
21 September 2020	Solomons, US	daily low max	15.0 C (59.0 F)	2.8 C (5.0 F)	122 years	47 of 100 (Notable)
21 September 2020	Niceville, US	daily low max	19.4 C (66.9 F)	6.2 C (11.2 F)	51 years	46 of 100 (Notable)
21 September 2020	Biloxi, US	daily low max	20.6 C (69.1 F)	1.6 C (2.9 F)	120 years	46 of 100 (Notable)
21 September 2020	Wilmington, AU	daily rain	43.0 mm (1.7 in)	25.4 mm (1.0 in)	4 years	45 of 100 (Notable)
21 September 2020	Middleboro, US	daily low min	-1.7 C (28.9 F)	2.8 C (5.0 F)	121 years	45 of 100 (Notable)
21 September 2020	Erinair, AU	daily rain	25.6 mm (1.0 in)	17.8 mm (0.7 in)	21 years	44 of 100 (Notable)
21 September 2020	Franklin 3 NW, US	daily low max	22.2 C (72.0 F)	1.1 C (2.0 F)	102 years	44 of 100 (Notable)
21 September 2020	Eastbourne, GB	daily high max	23.2 C (73.8 F)	1.0 C (1.8 F)	99 years	43 of 100 (Notable)
21 September 2020	Tifton, US	daily low max	20.6 C (69.1 F)	2.2 C (4.0 F)	91 years	43 of 100 (Notable)
21 September 2020	Donaldsonville 4 SW, US	daily low max	22.2 C (72.0 F)	1.1 C (2.0 F)	102 years	43 of 100 (Notable)
21 September 2020	Lake Arthur 7 SW, US	daily low max	23.3 C (73.9 F)	0.6 C (1.1 F)	107 years	42 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

1805 to 2020

Records set or tied on this calendar date in each year from 1805 to 2020. 2020 had 580 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	588
2026	469

Download the Data

Data for records on 2020-09-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Margin	Records
0 to 20	446
20 to 40	11
40 to 60	2
60 to 80	0
80 to 100	1