Weather Records on 25 September 2021

355 weather records were set or tied worldwide on 25 September 2021. Highest significance: Goychay, AZ.

Key Facts for 25 September 2021

On 25 September 2021, 355 weather records were set or tied at long-record stations worldwide.
248 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 347 daily.
Goychay set a daily record precipitation of 99.6 mm (3.9 in) on 25 September 2021.
Across 163 earlier years (1825 to 2026) the same calendar date averaged 426 records.

Record Map

355 stations

355 station records on 25 September 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 September 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Goychay	Azerbaijan	Record daily precipitation	99.6 mm (3.9 in)	72 of 100 (Major)
Cliff 11 SE	United States	Record daily precipitation	51.6 mm (2.0 in)	63 of 100 (Major)
Songpan	China	Record daily precipitation	42.9 mm (1.7 in)	60 of 100 (Major)
Lop Buri	Thailand	Record daily precipitation	116.6 mm (4.6 in)	51 of 100 (Notable)
Irkutsk	Russia	Record daily precipitation	27.9 mm (1.1 in)	50 of 100 (Notable)
Dwarka	India	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record high minimum temperature	15.7 C (60.3 F)	42 of 100 (Notable)
Munising	United States	Record daily precipitation	29.2 mm (1.1 in)	42 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record high maximum temperature	23.1 C (73.6 F)	41 of 100 (Notable)
Wien	Austria	Record high maximum temperature	26.4 C (79.5 F)	40 of 100 (Notable)
Potsdam	Germany	Record high minimum temperature	14.7 C (58.5 F)	40 of 100 (Notable)
Magdeburg	Germany	Record high minimum temperature	15.3 C (59.5 F)	40 of 100 (Notable)
Sheffield	United Kingdom	Record high minimum temperature	16.0 C (60.8 F)	40 of 100 (Notable)
Koo Wee Rup (Srw)	Australia	Record daily precipitation	35.8 mm (1.4 in)	38 of 100 (Notable)
Alger-Dar El Beida	Algeria	Record high minimum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Valley	United Kingdom	Record high minimum temperature	16.3 C (61.3 F)	37 of 100 (Notable)
Pinkham Notch	United States	Record daily precipitation	107.4 mm (4.2 in)	37 of 100 (Notable)
Yuncheng	China	Record daily precipitation	44.7 mm (1.8 in)	36 of 100 (Notable)
Kaiserslautern	Germany	Record high maximum temperature	26.3 C (79.3 F)	35 of 100 (Notable)
Bad Muskau	Germany	Record high minimum temperature	16.2 C (61.2 F)	35 of 100 (Notable)
Bradford	United Kingdom	Record high minimum temperature	14.5 C (58.1 F)	35 of 100 (Notable)
Hyannis	United States	Record daily precipitation	55.9 mm (2.2 in)	34 of 100 (Routine)
Norderney	Germany	Record high minimum temperature	16.8 C (62.2 F)	33 of 100 (Routine)
Yichang	China	Record high maximum temperature	36.2 C (97.2 F)	32 of 100 (Routine)
Hefei	China	Record high maximum temperature	33.8 C (92.8 F)	32 of 100 (Routine)
Bremerhaven	Germany	Record high minimum temperature	15.9 C (60.6 F)	32 of 100 (Routine)
Nalut	Libya	Record high maximum temperature	37.6 C (99.7 F)	32 of 100 (Routine)
Lop Buri	Thailand	Record low maximum temperature	26.4 C (79.5 F)	32 of 100 (Routine)
Eagle	United States	Record snow depth	15.2 cm (6.0 in)	32 of 100 (Routine)
Esquel Aero	Argentina	Record high maximum temperature	23.7 C (74.7 F)	31 of 100 (Routine)
Anqing	China	Record high maximum temperature	35.4 C (95.7 F)	31 of 100 (Routine)
Dresden-Strehlen	Germany	Record high minimum temperature	13.8 C (56.8 F)	31 of 100 (Routine)
Murcia/Alcantarilla	Spain	Record high minimum temperature	23.1 C (73.6 F)	31 of 100 (Routine)
Glenwood	United States	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
Uch-Aral	Kazakhstan	Record low minimum temperature	-2.3 C (27.9 F)	30 of 100 (Routine)
Carthage	Tunisia	Record high minimum temperature	24.4 C (75.9 F)	30 of 100 (Routine)
El Campo	United States	Record low minimum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Santa Barbara Muni AP	United States	Record low maximum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Halls Creek Airport	Australia	Record low minimum temperature	9.9 C (49.8 F)	29 of 100 (Routine)
Emden-Wolthusen	Germany	Record high minimum temperature	16.0 C (60.8 F)	29 of 100 (Routine)
Nalut	Libya	Record high minimum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Dongtai	China	Record high maximum temperature	30.6 C (87.1 F)	28 of 100 (Routine)
Malin Head	Ireland	Record high minimum temperature	14.1 C (57.4 F)	28 of 100 (Routine)
Dorpen	Germany	Record high minimum temperature	16.3 C (61.3 F)	28 of 100 (Routine)
Adler	Russia	Record daily precipitation	63.0 mm (2.5 in)	28 of 100 (Routine)
Armagh	United Kingdom	Record high minimum temperature	15.1 C (59.2 F)	28 of 100 (Routine)
Lompoc	United States	Record low maximum temperature	17.2 C (63.0 F)	28 of 100 (Routine)
Trelew Aero	Argentina	Record high maximum temperature	30.0 C (86.0 F)	27 of 100 (Routine)
Huoshan	China	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Bordeaux-Merignac	France	Record high minimum temperature	17.7 C (63.9 F)	27 of 100 (Routine)
Nossen	Germany	Record high minimum temperature	13.9 C (57.0 F)	27 of 100 (Routine)
Edinburgh: Royal Botanic Garde	United Kingdom	Record high maximum temperature	21.3 C (70.3 F)	27 of 100 (Routine)
Chatham Exp Farm 2	United States	Record daily precipitation	26.4 mm (1.0 in)	27 of 100 (Routine)
Yichang	China	Record high minimum temperature	23.4 C (74.1 F)	26 of 100 (Routine)
Chongqing	China	Record high maximum temperature	36.9 C (98.4 F)	26 of 100 (Routine)
Aginskoe	Russia	Record high minimum temperature	8.1 C (46.6 F)	26 of 100 (Routine)
Kielder Castle	United Kingdom	Record high maximum temperature	19.5 C (67.1 F)	26 of 100 (Routine)
Callao	United States	Record low minimum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Baton Rouge Metro AP	United States	Record low minimum temperature	11.7 C (53.1 F)	26 of 100 (Routine)
Ruoqiang	China	Record high maximum temperature	33.4 C (92.1 F)	25 of 100 (Routine)

Counts by Type and Timescale

355 records

Records set or tied on 25 September 2021 by type: Highest daily maximum 84, Lowest daily maximum 19, Highest daily minimum 164, Lowest daily minimum 29, Heaviest daily rainfall 55, Heaviest daily snowfall 1, Deepest snow cover 3.

Records on 25 September 2021 by type
Record type	Records
Highest daily maximum	84
Lowest daily maximum	19
Highest daily minimum	164
Lowest daily minimum	29
Heaviest daily rainfall	55
Heaviest daily snowfall	1
Deepest snow cover	3

Records on 25 September 2021 by timescale: all-time 0, monthly 8, daily 347.

How Much Records Were Beaten By

301 broken records

Margins by which the 301 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 59.7. Ties are not counted.

Top 20 by Significance

25 September 2021

Top 20 records on 25 September 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 September 2021	Goychay, AZ	daily rain	99.6 mm (3.9 in)	59.7 mm (2.4 in)	80 years	72 of 100 (Major)
25 September 2021	Cliff 11 SE, US	daily rain	51.6 mm (2.0 in)	34.3 mm (1.4 in)	54 years	63 of 100 (Major)
25 September 2021	Songpan, CN	daily rain	42.9 mm (1.7 in)	25.2 mm (1.0 in)	46 years	60 of 100 (Major)
25 September 2021	Lop Buri, TH	daily rain	116.6 mm (4.6 in)	56.1 mm (2.2 in)	63 years	51 of 100 (Notable)
25 September 2021	Irkutsk, RU	daily rain	27.9 mm (1.1 in)	6.0 mm (0.24 in)	102 years	50 of 100 (Notable)
25 September 2021	Dwarka, IN	daily rain	52.1 mm (2.1 in)	44.0 mm (1.7 in)	72 years	48 of 100 (Notable)
25 September 2021	Dublin Phoenix Park, IE	daily high min	15.7 C (60.3 F)	0.7 C (1.3 F)	108 years	42 of 100 (Notable)
25 September 2021	Munising, US	daily rain	29.2 mm (1.1 in)	8.4 mm (0.33 in)	80 years	42 of 100 (Notable)
25 September 2021	Dublin Phoenix Park, IE	daily high max	23.1 C (73.6 F)	0.5 C (0.9 F)	125 years	41 of 100 (Notable)
25 September 2021	Wien, AT	daily high max	26.4 C (79.5 F)	0.1 C (0.2 F)	154 years	40 of 100 (Notable)
25 September 2021	Potsdam, DE	daily high min	14.7 C (58.5 F)	0.3 C (0.5 F)	123 years	40 of 100 (Notable)
25 September 2021	Magdeburg, DE	daily high min	15.3 C (59.5 F)	0.1 C (0.2 F)	120 years	40 of 100 (Notable)
25 September 2021	Sheffield, GB	daily high min	16.0 C (60.8 F)	0.1 C (0.2 F)	125 years	40 of 100 (Notable)
25 September 2021	Koo Wee Rup (Srw), AU	daily rain	35.8 mm (1.4 in)	18.8 mm (0.7 in)	7 years	38 of 100 (Notable)
25 September 2021	Alger-Dar El Beida, DZ	daily high min	23.9 C (75.0 F)	1.9 C (3.4 F)	78 years	37 of 100 (Notable)
25 September 2021	Valley, GB	daily high min	16.3 C (61.3 F)	1.9 C (3.4 F)	72 years	37 of 100 (Notable)
25 September 2021	Pinkham Notch, US	daily rain	107.4 mm (4.2 in)	20.3 mm (0.8 in)	56 years	37 of 100 (Notable)
25 September 2021	Yuncheng, CN	daily rain	44.7 mm (1.8 in)	26.7 mm (1.1 in)	32 years	36 of 100 (Notable)
25 September 2021	Kaiserslautern, DE	daily high max	26.3 C (79.3 F)	0.8 C (1.4 F)	83 years	35 of 100 (Notable)
25 September 2021	Bad Muskau, DE	daily high min	16.2 C (61.2 F)	3.5 C (6.3 F)	63 years	35 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

1825 to 2021

Records set or tied on this calendar date in each year from 1825 to 2021. 2021 had 355 records.

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

Records on 09-25 in each year
Year	Records
1825	1
1834	1
1836	1
1842	1
1843	1
1847	1
1851	1
1852	1
1855	1
1857	2
1859	1
1860	1
1863	1
1865	1
1866	2
1867	2
1868	1
1871	2
1872	1
1874	1
1875	1
1877	3
1879	2
1881	3
1884	3
1885	6
1886	1
1887	3
1889	7
1891	3
1893	7
1894	3
1895	5
1896	5
1897	2
1898	1
1899	2
1900	7
1901	6
1902	11
1903	4
1904	10
1905	16
1906	7
1907	35
1908	20
1909	22
1910	5
1911	9
1912	63
1913	13
1914	15
1915	43
1916	139
1917	138
1918	16
1919	20
1920	75
1921	32
1922	47
1923	68
1924	157
1925	141
1926	740
1927	166
1928	480
1929	158
1930	489
1931	500
1932	260
1933	542
1934	394
1935	258
1936	274
1937	190
1938	335
1939	454
1940	517
1941	269
1942	970
1943	488
1944	246
1945	514
1946	292
1947	666
1948	501
1949	479
1950	1,163
1951	639
1952	515
1953	242
1954	292
1955	546
1956	503
1957	231
1958	454
1959	396
1960	694
1961	530
1962	305
1963	602
1964	403
1965	690
1966	334
1967	428
1968	300
1969	196
1970	783
1971	323
1972	706
1973	650
1974	995
1975	1,166
1976	541
1977	875
1978	462
1979	719
1980	687
1981	669
1982	759
1983	647
1984	1,305
1985	446
1986	1,766
1987	560
1988	571
1989	1,367
1990	875
1991	1,243
1992	1,346
1993	1,015
1994	666
1995	1,013
1996	648
1997	1,278
1998	1,346
1999	804
2000	1,536
2001	1,536
2002	876
2003	758
2004	519
2005	1,484
2006	767
2007	1,284
2008	766
2009	854
2010	1,125
2011	763
2012	505
2013	615
2014	800
2015	868
2016	781
2017	1,253
2018	648
2019	530
2020	1,089
2021	355
2022	301
2023	580
2024	1,120
2025	569
2026	473

Download the Data

Data for records on 2021-09-25: 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	286
10 to 20	5
20 to 30	5
30 to 40	1
40 to 50	1
50 to 60	3