Weather Records on 16 September 2021

454 weather records were set or tied worldwide on 16 September 2021. Highest significance: Lanna, SE.

Key Facts for 16 September 2021

On 16 September 2021, 454 weather records were set or tied at long-record stations worldwide.
200 were record highs and 104 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 443 daily.
Lanna set a daily record precipitation of 43.6 mm (1.7 in) on 16 September 2021.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 414 records.

Record Map

454 stations

454 station records on 16 September 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 16 September 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lanna	Sweden	Record daily precipitation	43.6 mm (1.7 in)	64 of 100 (Major)
Vargarda_D	Sweden	Record daily precipitation	36.6 mm (1.4 in)	62 of 100 (Major)
Gullspang	Sweden	Record daily precipitation	44.5 mm (1.8 in)	61 of 100 (Major)
Lidkoping	Sweden	Record daily precipitation	55.4 mm (2.2 in)	60 of 100 (Major)
Orrefors_D	Sweden	Record daily precipitation	30.7 mm (1.2 in)	58 of 100 (Notable)
Falkoping	Sweden	Record daily precipitation	32.4 mm (1.3 in)	56 of 100 (Notable)
Jonkoping	Sweden	Record daily precipitation	33.6 mm (1.3 in)	55 of 100 (Notable)
Gendalen	Sweden	Record daily precipitation	48.2 mm (1.9 in)	53 of 100 (Notable)
Trokorna	Sweden	Record daily precipitation	45.1 mm (1.8 in)	51 of 100 (Notable)
Satenas	Sweden	Record daily precipitation	41.5 mm (1.6 in)	51 of 100 (Notable)
Zinder	Niger	Record low minimum temperature	16.0 C (60.8 F)	50 of 100 (Notable)
Sandersville	United States	Record daily precipitation	66.3 mm (2.6 in)	49 of 100 (Notable)
Aldan	Russia	Record daily precipitation	41.9 mm (1.6 in)	48 of 100 (Notable)
Americus	United States	Record daily precipitation	46.5 mm (1.8 in)	46 of 100 (Notable)
Skedemosse	Sweden	Record daily precipitation	25.7 mm (1.0 in)	45 of 100 (Notable)
Fagre	Sweden	Record daily precipitation	29.4 mm (1.2 in)	44 of 100 (Notable)
Hawkinsville	United States	Record daily precipitation	87.9 mm (3.5 in)	44 of 100 (Notable)
Castle Rock	United States	Record high maximum temperature	34.4 C (93.9 F)	43 of 100 (Notable)
Middleboro	United States	Record high minimum temperature	20.0 C (68.0 F)	43 of 100 (Notable)
New Castle	United States	Record daily precipitation	32.0 mm (1.3 in)	43 of 100 (Notable)
Bartow 1S	United States	Record daily precipitation	43.7 mm (1.7 in)	43 of 100 (Notable)
Jiulong	China	Record daily precipitation	50.8 mm (2.0 in)	42 of 100 (Notable)
Osijek	Croatia	Record high minimum temperature	18.8 C (65.8 F)	42 of 100 (Notable)
Yakutat AP	United States	Record low maximum temperature	9.4 C (48.9 F)	42 of 100 (Notable)
Serpentine	Australia	Record daily precipitation	33.4 mm (1.3 in)	41 of 100 (Notable)
Vancouver 4 NNE	United States	Record low minimum temperature	1.7 C (35.1 F)	41 of 100 (Notable)
Biskra	Algeria	Record high minimum temperature	30.3 C (86.5 F)	40 of 100 (Notable)
Ust-Njukzha	Russia	Record daily precipitation	34.0 mm (1.3 in)	40 of 100 (Notable)
Kilagarden	Sweden	Record daily precipitation	53.4 mm (2.1 in)	40 of 100 (Notable)
Gyzylarbat	Turkmenistan	Record high maximum temperature	38.2 C (100.8 F)	40 of 100 (Notable)
Oak City	United States	Record high minimum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Norra_Mockleby	Sweden	Record daily precipitation	26.0 mm (1.0 in)	39 of 100 (Notable)
Karlsborg_Mo	Sweden	Record daily precipitation	28.5 mm (1.1 in)	39 of 100 (Notable)
Mariestad	Sweden	Record daily precipitation	44.1 mm (1.7 in)	39 of 100 (Notable)
Chongqing	China	Record daily precipitation	90.7 mm (3.6 in)	38 of 100 (Notable)
Port Allen	United States	Record daily precipitation	63.5 mm (2.5 in)	38 of 100 (Notable)
Waynesboro 2 W	United States	Record daily precipitation	85.6 mm (3.4 in)	38 of 100 (Notable)
Skovde	Sweden	Record daily precipitation	45.5 mm (1.8 in)	37 of 100 (Notable)
Traneberg	Sweden	Record daily precipitation	53.5 mm (2.1 in)	37 of 100 (Notable)
Madisonville	United States	Record daily precipitation	78.7 mm (3.1 in)	37 of 100 (Notable)
Wien	Austria	Record high minimum temperature	20.1 C (68.2 F)	36 of 100 (Notable)
Mae Sariang	Thailand	Record daily precipitation	66.8 mm (2.6 in)	36 of 100 (Notable)
Longview	United States	Record low minimum temperature	2.2 C (36.0 F)	35 of 100 (Notable)
Racine Locks & Dam	United States	Record daily precipitation	48.3 mm (1.9 in)	35 of 100 (Notable)
Woodland	United States	Record high minimum temperature	19.4 C (66.9 F)	34 of 100 (Routine)
Hattiesburg 5SW	United States	Record daily precipitation	55.9 mm (2.2 in)	34 of 100 (Routine)
Marriwood	Australia	Record daily precipitation	29.8 mm (1.2 in)	33 of 100 (Routine)
Gambona	Congo (Brazzaville)	Record daily precipitation	47.0 mm (1.9 in)	33 of 100 (Routine)
Mt Vernon	United States	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Newnan 7 WNW	United States	Record daily precipitation	39.4 mm (1.6 in)	33 of 100 (Routine)
Augusta Bush Fld AP	United States	Record daily precipitation	70.4 mm (2.8 in)	33 of 100 (Routine)
Remningstorp	Sweden	Record daily precipitation	36.9 mm (1.5 in)	32 of 100 (Routine)
Huntley Exp STN	United States	Record high minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Mundaring	Australia	Record daily precipitation	30.4 mm (1.2 in)	31 of 100 (Routine)
Ferguson Valley	Australia	Record daily precipitation	31.0 mm (1.2 in)	31 of 100 (Routine)
Alice Springs Airport	Australia	Record high maximum temperature	37.1 C (98.8 F)	31 of 100 (Routine)
Kitt Peak	United States	Record high maximum temperature	31.7 C (89.1 F)	31 of 100 (Routine)
Warner Glen	Australia	Record daily precipitation	27.0 mm (1.1 in)	30 of 100 (Routine)
Ogulin	Croatia	Record high minimum temperature	19.8 C (67.6 F)	30 of 100 (Routine)
Huskvarna	Sweden	Record daily precipitation	25.2 mm (1.0 in)	30 of 100 (Routine)

Counts by Type and Timescale

454 records

Records set or tied on 16 September 2021 by type: Highest daily maximum 73, Lowest daily maximum 30, Highest daily minimum 127, Lowest daily minimum 74, Heaviest daily rainfall 150.

Records on 16 September 2021 by type
Record type	Records
Highest daily maximum	73
Lowest daily maximum	30
Highest daily minimum	127
Lowest daily minimum	74
Heaviest daily rainfall	150
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 16 September 2021 by timescale: all-time 0, monthly 11, daily 443.

How Much Records Were Beaten By

376 broken records

Margins by which the 376 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 46.3. Ties are not counted.

Top 20 by Significance

16 September 2021

Top 20 records on 16 September 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 September 2021	Lanna, SE	daily rain	43.6 mm (1.7 in)	26.4 mm (1.0 in)	56 years	64 of 100 (Major)
16 September 2021	Vargarda_D, SE	daily rain	36.6 mm (1.4 in)	21.4 mm (0.8 in)	56 years	62 of 100 (Major)
16 September 2021	Gullspang, SE	daily rain	44.5 mm (1.8 in)	27.3 mm (1.1 in)	48 years	61 of 100 (Major)
16 September 2021	Lidkoping, SE	monthly rain	55.4 mm (2.2 in)	12.4 mm (0.5 in)	75 years	60 of 100 (Major)
16 September 2021	Orrefors_D, SE	daily rain	30.7 mm (1.2 in)	16.6 mm (0.7 in)	66 years	58 of 100 (Notable)
16 September 2021	Falkoping, SE	daily rain	32.4 mm (1.3 in)	18.9 mm (0.7 in)	56 years	56 of 100 (Notable)
16 September 2021	Jonkoping, SE	daily rain	33.6 mm (1.3 in)	9.9 mm (0.39 in)	91 years	55 of 100 (Notable)
16 September 2021	Gendalen, SE	daily rain	48.2 mm (1.9 in)	32.9 mm (1.3 in)	26 years	53 of 100 (Notable)
16 September 2021	Trokorna, SE	daily rain	45.1 mm (1.8 in)	32.6 mm (1.3 in)	28 years	51 of 100 (Notable)
16 September 2021	Satenas, SE	daily rain	41.5 mm (1.6 in)	22.5 mm (0.9 in)	28 years	51 of 100 (Notable)
16 September 2021	Zinder, NE	daily low min	16.0 C (60.8 F)	2.0 C (3.6 F)	108 years	50 of 100 (Notable)
16 September 2021	Sandersville, US	daily rain	66.3 mm (2.6 in)	45.7 mm (1.8 in)	62 years	49 of 100 (Notable)
16 September 2021	Aldan, RU	daily rain	41.9 mm (1.6 in)	14.7 mm (0.6 in)	68 years	48 of 100 (Notable)
16 September 2021	Americus, US	daily rain	46.5 mm (1.8 in)	28.2 mm (1.1 in)	75 years	46 of 100 (Notable)
16 September 2021	Skedemosse, SE	daily rain	25.7 mm (1.0 in)	9.9 mm (0.39 in)	66 years	45 of 100 (Notable)
16 September 2021	Fagre, SE	daily rain	29.4 mm (1.2 in)	21.9 mm (0.9 in)	6 years	44 of 100 (Notable)
16 September 2021	Hawkinsville, US	daily rain	87.9 mm (3.5 in)	15.5 mm (0.6 in)	87 years	44 of 100 (Notable)
16 September 2021	Castle Rock, US	daily high max	34.4 C (93.9 F)	1.6 C (2.9 F)	111 years	43 of 100 (Notable)
16 September 2021	Middleboro, US	daily high min	20.0 C (68.0 F)	1.7 C (3.1 F)	120 years	43 of 100 (Notable)
16 September 2021	New Castle, US	daily rain	32.0 mm (1.3 in)	11.7 mm (0.5 in)	84 years	43 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 454 records.

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

Records on 09-16 in each year
Year	Records
1793	1
1796	1
1807	1
1809	1
1823	2
1828	1
1829	1
1833	1
1837	1
1845	1
1847	1
1848	2
1850	1
1852	1
1854	2
1857	1
1861	1
1865	1
1866	1
1867	1
1869	1
1873	1
1874	3
1875	2
1877	4
1879	1
1882	1
1884	2
1885	5
1886	1
1887	2
1888	1
1889	9
1890	1
1892	2
1893	2
1894	1
1895	2
1896	3
1897	2
1898	6
1899	4
1900	5
1901	7
1902	3
1903	18
1904	5
1905	9
1906	12
1907	14
1908	15
1909	18
1910	26
1911	18
1912	58
1913	43
1914	35
1915	50
1916	60
1917	180
1918	125
1919	26
1920	164
1921	62
1922	147
1923	151
1924	77
1925	212
1926	116
1927	382
1928	62
1929	121
1930	235
1931	568
1932	533
1933	321
1934	519
1935	303
1936	442
1937	536
1938	296
1939	666
1940	188
1941	319
1942	504
1943	270
1944	284
1945	390
1946	610
1947	763
1948	541
1949	486
1950	506
1951	290
1952	378
1953	317
1954	554
1955	490
1956	605
1957	500
1958	538
1959	983
1960	235
1961	833
1962	479
1963	491
1964	859
1965	1,159
1966	838
1967	427
1968	496
1969	360
1970	627
1971	617
1972	451
1973	608
1974	385
1975	836
1976	878
1977	577
1978	421
1979	1,025
1980	568
1981	765
1982	863
1983	814
1984	898
1985	539
1986	862
1987	783
1988	786
1989	854
1990	593
1991	1,367
1992	1,073
1993	1,542
1994	1,008
1995	976
1996	1,403
1997	1,028
1998	1,466
1999	879
2000	1,315
2001	819
2002	1,117
2003	627
2004	746
2005	1,112
2006	1,274
2007	895
2008	1,000
2009	754
2010	880
2011	1,265
2012	572
2013	673
2014	490
2015	926
2016	767
2017	583
2018	921
2019	742
2020	674
2021	454
2022	521
2023	568
2024	885
2025	578
2026	920

Download the Data

Data for records on 2021-09-16: 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).

Histogram of margins by which records were beaten on 16 September 2021
Margin	Records
0 to 10	325
10 to 20	26
20 to 30	17
30 to 40	4
40 to 50	4