Weather Records on 12 September 2021

513 weather records were set or tied worldwide on 12 September 2021. Highest significance: Bhaunagar, IN.

Key Facts for 12 September 2021

On 12 September 2021, 513 weather records were set or tied at long-record stations worldwide.
426 were record highs and 25 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 7 monthly and 505 daily.
Bhaunagar set a daily record precipitation of 78.0 mm (3.1 in) on 12 September 2021.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 413 records.

Record Map

513 stations

513 station records on 12 September 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bhaunagar	India	Record daily precipitation	78.0 mm (3.1 in)	59 of 100 (Notable)
Haboro	Japan	Record daily precipitation	108.0 mm (4.3 in)	56 of 100 (Notable)
Taivalkoski Inkee	Finland	Record daily precipitation	29.5 mm (1.2 in)	48 of 100 (Notable)
Sosunovo	Russia	Record daily precipitation	85.1 mm (3.4 in)	48 of 100 (Notable)
Kairouan	Tunisia	Record low minimum temperature	10.8 C (51.4 F)	43 of 100 (Notable)
Canon City	United States	Record high maximum temperature	36.1 C (97.0 F)	43 of 100 (Notable)
Amraoti	India	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Sugarloaf Rsvr	United States	Record high maximum temperature	24.4 C (75.9 F)	42 of 100 (Notable)
Ulysses 3NE	United States	Record high maximum temperature	40.6 C (105.1 F)	42 of 100 (Notable)
Clayton Muni Air Pk	United States	Record high maximum temperature	35.0 C (95.0 F)	42 of 100 (Notable)
Burlington	United States	Record high maximum temperature	37.8 C (100.0 F)	41 of 100 (Notable)
Climax	United States	Record high maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Lamar	United States	Record high maximum temperature	38.9 C (102.0 F)	41 of 100 (Notable)
Liberal	United States	Record high maximum temperature	38.9 C (102.0 F)	41 of 100 (Notable)
Meade	United States	Record high maximum temperature	40.0 C (104.0 F)	41 of 100 (Notable)
Wakeeney	United States	Record high maximum temperature	40.0 C (104.0 F)	41 of 100 (Notable)
Wallace	United States	Record high maximum temperature	38.9 C (102.0 F)	41 of 100 (Notable)
Culbertson	United States	Record high maximum temperature	38.3 C (100.9 F)	40 of 100 (Notable)
Atwood	United States	Record high maximum temperature	39.4 C (102.9 F)	38 of 100 (Notable)
Elkhart	United States	Record high minimum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Plainville 4WNW	United States	Record high maximum temperature	38.9 C (102.0 F)	38 of 100 (Notable)
Memphis	United States	Record high maximum temperature	40.6 C (105.1 F)	38 of 100 (Notable)
Vanersborg	Sweden	Record high minimum temperature	15.9 C (60.6 F)	37 of 100 (Notable)
Leroy 5 WSW	United States	Record high maximum temperature	36.1 C (97.0 F)	37 of 100 (Notable)
Imlay	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Lord Howe Island Aero	Australia	Record high minimum temperature	17.1 C (62.8 F)	34 of 100 (Routine)
Sirte	Libya	Record high minimum temperature	27.0 C (80.6 F)	34 of 100 (Routine)
Landvik	Norway	Record high maximum temperature	26.0 C (78.8 F)	34 of 100 (Routine)
Borzja	Russia	Record daily precipitation	29.5 mm (1.2 in)	34 of 100 (Routine)
Hallands_Vadero	Sweden	Record high minimum temperature	17.3 C (63.1 F)	34 of 100 (Routine)
Lakeside	United States	Record high minimum temperature	23.3 C (73.9 F)	34 of 100 (Routine)
Jinan	China	Record high maximum temperature	34.0 C (93.2 F)	33 of 100 (Routine)
Longzhou	China	Record high maximum temperature	38.2 C (100.8 F)	33 of 100 (Routine)
Kitamiesashi	Japan	Record daily precipitation	56.9 mm (2.2 in)	33 of 100 (Routine)
Springerville	United States	Record high maximum temperature	31.1 C (88.0 F)	33 of 100 (Routine)
Imperial	United States	Record high minimum temperature	30.0 C (86.0 F)	33 of 100 (Routine)
Kassler	United States	Record high maximum temperature	36.1 C (97.0 F)	33 of 100 (Routine)
Sidney 6NNW	United States	Record high maximum temperature	36.7 C (98.1 F)	33 of 100 (Routine)
Gran Quivira Natl Mon	United States	Record high maximum temperature	32.8 C (91.0 F)	33 of 100 (Routine)
Vallecito Dam	United States	Record high maximum temperature	30.0 C (86.0 F)	32 of 100 (Routine)
Gull Lake Biological STN	United States	Record high minimum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Deaver	United States	Record high minimum temperature	17.2 C (63.0 F)	32 of 100 (Routine)
Halmstad Flygflottilj	Sweden	Record high minimum temperature	16.5 C (61.7 F)	31 of 100 (Routine)
Olands Norra Udde	Sweden	Record high minimum temperature	16.6 C (61.9 F)	31 of 100 (Routine)
Del Norte 3ENE	United States	Record high maximum temperature	30.0 C (86.0 F)	31 of 100 (Routine)
Cimarron	United States	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Greensburg	United States	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Syracuse 1NE	United States	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Harlan Co Lake	United States	Record high maximum temperature	37.2 C (99.0 F)	31 of 100 (Routine)
Cerro	United States	Record high maximum temperature	31.1 C (88.0 F)	31 of 100 (Routine)
Niagara Falls Intl AP	United States	Record high minimum temperature	19.4 C (66.9 F)	31 of 100 (Routine)
Guilin	China	Record high maximum temperature	37.7 C (99.9 F)	30 of 100 (Routine)
Amritsar	India	Record low maximum temperature	26.5 C (79.7 F)	30 of 100 (Routine)
Sohar Majis	Oman	Record high maximum temperature	39.9 C (103.8 F)	30 of 100 (Routine)
Kjevik	Norway	Record high maximum temperature	23.3 C (73.9 F)	30 of 100 (Routine)
Kristinehamn	Sweden	Record high minimum temperature	15.1 C (59.2 F)	30 of 100 (Routine)
Waterdale	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Amistad 5 SSW	United States	Record high maximum temperature	37.2 C (99.0 F)	30 of 100 (Routine)
Detroit Willow Run AP	United States	Record high minimum temperature	21.7 C (71.1 F)	30 of 100 (Routine)
Hohhot	China	Record high maximum temperature	29.8 C (85.6 F)	29 of 100 (Routine)

Counts by Type and Timescale

513 records

Records set or tied on 12 September 2021 by type: Highest daily maximum 244, Lowest daily maximum 9, Highest daily minimum 182, Lowest daily minimum 16, Heaviest daily rainfall 62.

Records on 12 September 2021 by type
Record type	Records
Highest daily maximum	244
Lowest daily maximum	9
Highest daily minimum	182
Lowest daily minimum	16
Heaviest daily rainfall	62
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 September 2021 by timescale: all-time 1, monthly 7, daily 505.

How Much Records Were Beaten By

394 broken records

Margins by which the 394 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.0. Ties are not counted.

Top 20 by Significance

12 September 2021

Top 20 records on 12 September 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 2021	Bhaunagar, IN	daily rain	78.0 mm (3.1 in)	43.2 mm (1.7 in)	104 years	59 of 100 (Notable)
12 September 2021	Haboro, JP	daily rain	108.0 mm (4.3 in)	78.0 mm (3.1 in)	32 years	56 of 100 (Notable)
12 September 2021	Taivalkoski Inkee, FI	daily rain	29.5 mm (1.2 in)	14.3 mm (0.6 in)	43 years	48 of 100 (Notable)
12 September 2021	Sosunovo, RU	daily rain	85.1 mm (3.4 in)	56.4 mm (2.2 in)	32 years	48 of 100 (Notable)
12 September 2021	Kairouan, TN	daily low min	10.8 C (51.4 F)	5.3 C (9.5 F)	54 years	43 of 100 (Notable)
12 September 2021	Canon City, US	daily high max	36.1 C (97.0 F)	1.7 C (3.1 F)	125 years	43 of 100 (Notable)
12 September 2021	Amraoti, IN	daily rain	38.1 mm (1.5 in)	5.3 mm (0.21 in)	104 years	42 of 100 (Notable)
12 September 2021	Sugarloaf Rsvr, US	daily high max	24.4 C (75.9 F)	1.1 C (2.0 F)	116 years	42 of 100 (Notable)
12 September 2021	Ulysses 3NE, US	daily high max	40.6 C (105.1 F)	1.7 C (3.1 F)	110 years	42 of 100 (Notable)
12 September 2021	Clayton Muni Air Pk, US	daily high max	35.0 C (95.0 F)	1.1 C (2.0 F)	110 years	42 of 100 (Notable)
12 September 2021	Burlington, US	daily high max	37.8 C (100.0 F)	1.1 C (2.0 F)	110 years	41 of 100 (Notable)
12 September 2021	Climax, US	daily high max	20.0 C (68.0 F)	0.6 C (1.1 F)	125 years	41 of 100 (Notable)
12 September 2021	Lamar, US	daily high max	38.9 C (102.0 F)	0.6 C (1.1 F)	125 years	41 of 100 (Notable)
12 September 2021	Liberal, US	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	110 years	41 of 100 (Notable)
12 September 2021	Meade, US	daily high max	40.0 C (104.0 F)	0.6 C (1.1 F)	125 years	41 of 100 (Notable)
12 September 2021	Wakeeney, US	daily high max	40.0 C (104.0 F)	1.1 C (2.0 F)	110 years	41 of 100 (Notable)
12 September 2021	Wallace, US	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	110 years	41 of 100 (Notable)
12 September 2021	Culbertson, US	daily high max	38.3 C (100.9 F)	0.5 C (0.9 F)	110 years	40 of 100 (Notable)
12 September 2021	Atwood, US	daily high max	39.4 C (102.9 F)	1.1 C (2.0 F)	90 years	38 of 100 (Notable)
12 September 2021	Elkhart, US	daily high min	19.4 C (66.9 F)	0.5 C (0.9 F)	90 years	38 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 2021

Records set or tied on this calendar date in each year from 1793 to 2021. 2021 had 513 records.

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

Records on 09-12 in each year
Year	Records
1793	2
1809	1
1813	1
1814	2
1834	1
1837	2
1839	1
1847	1
1848	1
1854	4
1859	2
1860	2
1865	2
1866	1
1867	1
1868	2
1869	1
1872	2
1876	1
1878	1
1880	1
1881	1
1882	1
1884	2
1885	2
1886	1
1887	2
1888	2
1889	1
1891	4
1892	1
1893	4
1894	1
1895	5
1896	2
1897	3
1898	3
1899	4
1900	1
1901	5
1902	11
1903	18
1904	7
1905	8
1906	24
1907	11
1908	12
1909	11
1910	4
1911	15
1912	20
1913	12
1914	49
1915	71
1916	21
1917	231
1918	42
1919	69
1920	49
1921	60
1922	136
1923	33
1924	177
1925	443
1926	89
1927	339
1928	155
1929	118
1930	198
1931	648
1932	199
1933	360
1934	176
1935	441
1936	515
1937	318
1938	332
1939	702
1940	891
1941	172
1942	337
1943	544
1944	393
1945	414
1946	302
1947	596
1948	292
1949	512
1950	578
1951	399
1952	575
1953	515
1954	313
1955	457
1956	389
1957	727
1958	783
1959	536
1960	772
1961	750
1962	407
1963	466
1964	836
1965	459
1966	416
1967	510
1968	428
1969	558
1970	619
1971	593
1972	430
1973	588
1974	575
1975	1,102
1976	539
1977	524
1978	952
1979	765
1980	511
1981	424
1982	993
1983	915
1984	700
1985	876
1986	787
1987	686
1988	997
1989	1,313
1990	1,001
1991	672
1992	767
1993	798
1994	550
1995	532
1996	1,014
1997	737
1998	1,770
1999	938
2000	1,188
2001	797
2002	883
2003	830
2004	653
2005	1,032
2006	963
2007	776
2008	1,213
2009	876
2010	939
2011	988
2012	639
2013	1,066
2014	1,374
2015	704
2016	748
2017	1,114
2018	595
2019	884
2020	566
2021	513
2022	739
2023	844
2024	1,009
2025	433
2026	627

Download the Data

Data for records on 2021-09-12: 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 10	387
10 to 20	1
20 to 30	3
30 to 40	0
40 to 50	1
50 to 60	1
60 to 70	0
70 to 80	1