Weather Records on 21 September 2010

1,290 weather records were set or tied worldwide on 21 September 2010. Highest significance: Pinnacle, AU.

Key Facts for 21 September 2010

On 21 September 2010, 1,290 weather records were set or tied at long-record stations worldwide.
847 were record highs and 121 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 49 monthly and 1,240 daily.
Pinnacle set a monthly record daily precipitation of 84.0 mm (3.3 in) on 21 September 2010.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 446 records.

Record Map

1,290 stations

1,290 station records on 21 September 2010 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 2010: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pinnacle	Australia	Record daily precipitation	84.0 mm (3.3 in)	64 of 100 (Major)
Kharkiv	Ukraine	Record daily precipitation	52.1 mm (2.1 in)	64 of 100 (Major)
Petford	Australia	Record daily precipitation	27.0 mm (1.1 in)	59 of 100 (Notable)
Querobabi	Mexico	Record daily precipitation	62.5 mm (2.5 in)	58 of 100 (Notable)
Fairymead Sugar Mill	Australia	Record daily precipitation	117.0 mm (4.6 in)	57 of 100 (Notable)
Waterloo	Australia	Record daily precipitation	73.0 mm (2.9 in)	57 of 100 (Notable)
Todos Santos (Dge)	Mexico	Record daily precipitation	149.9 mm (5.9 in)	57 of 100 (Notable)
Urangan Hibiscus St	Australia	Record daily precipitation	91.8 mm (3.6 in)	56 of 100 (Notable)
Mossman Central Mill	Australia	Record daily precipitation	31.0 mm (1.2 in)	55 of 100 (Notable)
Kilkivan Post Office	Australia	Record daily precipitation	41.6 mm (1.6 in)	55 of 100 (Notable)
Brian Pastures	Australia	Record daily precipitation	98.8 mm (3.9 in)	55 of 100 (Notable)
Wakkanai	Japan	Record daily precipitation	67.1 mm (2.6 in)	54 of 100 (Notable)
Eidsvold Post Office	Australia	Record daily precipitation	32.6 mm (1.3 in)	53 of 100 (Notable)
Lady Elliot Island	Australia	Record daily precipitation	66.6 mm (2.6 in)	52 of 100 (Notable)
Tuan Creek Forest STN	Australia	Record daily precipitation	72.6 mm (2.9 in)	52 of 100 (Notable)
Wushaoling	China	Record daily precipitation	26.6 mm (1.0 in)	51 of 100 (Notable)
Suaqui Grande (Smn)	Mexico	Record daily precipitation	64.8 mm (2.6 in)	51 of 100 (Notable)
Simpson 6 N - Wildhorse	United States	Record daily precipitation	35.6 mm (1.4 in)	51 of 100 (Notable)
Koumala Hatfields Road	Australia	Record daily precipitation	27.0 mm (1.1 in)	49 of 100 (Notable)
Lethebrook	Australia	Record daily precipitation	51.0 mm (2.0 in)	49 of 100 (Notable)
Bustard Head Lighthouse	Australia	Record daily precipitation	64.0 mm (2.5 in)	49 of 100 (Notable)
Sandy Cape Lighthouse	Australia	Record daily precipitation	88.2 mm (3.5 in)	49 of 100 (Notable)
El Vivero	Mexico	Record daily precipitation	45.0 mm (1.8 in)	49 of 100 (Notable)
Goomeri Post Office	Australia	Record daily precipitation	26.2 mm (1.0 in)	47 of 100 (Notable)
San Jose	Mexico	Record daily precipitation	68.1 mm (2.7 in)	47 of 100 (Notable)
Nambour Bowling Club	Australia	Record daily precipitation	35.4 mm (1.4 in)	46 of 100 (Notable)
Siliguri	India	Record daily precipitation	103.9 mm (4.1 in)	46 of 100 (Notable)
Nikolaevsk-Na-Amure	Russia	Record daily precipitation	53.3 mm (2.1 in)	46 of 100 (Notable)
Woodgate Store	Australia	Record daily precipitation	92.2 mm (3.6 in)	45 of 100 (Notable)
Teocaltiche (Dge)	Mexico	Record daily precipitation	51.3 mm (2.0 in)	45 of 100 (Notable)
Kandanga Post Office	Australia	Record daily precipitation	35.0 mm (1.4 in)	44 of 100 (Notable)
Theebine	Australia	Record daily precipitation	56.6 mm (2.2 in)	44 of 100 (Notable)
Teddington Waterworks	Australia	Record daily precipitation	71.4 mm (2.8 in)	44 of 100 (Notable)
Casa Grande Nm	United States	Record high minimum temperature	26.7 C (80.1 F)	44 of 100 (Notable)
Burnett Heads Niell St	Australia	Record daily precipitation	73.6 mm (2.9 in)	43 of 100 (Notable)
Innisfail	Australia	Record daily precipitation	32.2 mm (1.3 in)	42 of 100 (Notable)
Te Kowai Exp STN	Australia	Record daily precipitation	31.6 mm (1.2 in)	42 of 100 (Notable)
Boona-Choppa	Australia	Record daily precipitation	76.4 mm (3.0 in)	42 of 100 (Notable)
Jambin Post Office	Australia	Record daily precipitation	25.2 mm (1.0 in)	42 of 100 (Notable)
Lieto Tammentaka	Finland	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Poytya Ylane	Finland	Record daily precipitation	29.2 mm (1.1 in)	42 of 100 (Notable)
Elliott Heads Road	Australia	Record daily precipitation	93.0 mm (3.7 in)	41 of 100 (Notable)
Kaarina Yltoinen	Finland	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Cucharas	Mexico	Record daily precipitation	140.0 mm (5.5 in)	41 of 100 (Notable)
Paoli	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Benton Harbor AP	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	23.0 C (73.4 F)	40 of 100 (Notable)
Wilson Beach	Australia	Record daily precipitation	62.0 mm (2.4 in)	40 of 100 (Notable)
Goomboorian	Australia	Record daily precipitation	68.0 mm (2.7 in)	40 of 100 (Notable)
Huittinen Sallila	Finland	Record daily precipitation	25.7 mm (1.0 in)	40 of 100 (Notable)
San Juan Londo	Mexico	Record daily precipitation	185.9 mm (7.3 in)	40 of 100 (Notable)
Agua Nueva	Mexico	Record daily precipitation	75.9 mm (3.0 in)	40 of 100 (Notable)
Bogoroditskoye-Fenino	Russia	Record daily precipitation	34.2 mm (1.3 in)	40 of 100 (Notable)
Akron 4 E	United States	Record high maximum temperature	36.7 C (98.1 F)	40 of 100 (Notable)
Arcturus Downs	Australia	Record daily precipitation	59.0 mm (2.3 in)	39 of 100 (Notable)
Toogoom	Australia	Record daily precipitation	71.4 mm (2.8 in)	39 of 100 (Notable)
Banamichi	Mexico	Record daily precipitation	38.4 mm (1.5 in)	39 of 100 (Notable)
Wynne	United States	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
Ft Morgan	United States	Record high maximum temperature	34.4 C (93.9 F)	39 of 100 (Notable)
Kassler	United States	Record high maximum temperature	35.0 C (95.0 F)	39 of 100 (Notable)

Counts by Type and Timescale

1,290 records

Records set or tied on 21 September 2010 by type: Highest daily maximum 491, Lowest daily maximum 81, Highest daily minimum 356, Lowest daily minimum 40, Heaviest daily rainfall 322.

Records on 21 September 2010 by type
Record type	Records
Highest daily maximum	491
Lowest daily maximum	81
Highest daily minimum	356
Lowest daily minimum	40
Heaviest daily rainfall	322
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 2010 by timescale: all-time 1, monthly 49, daily 1,240.

How Much Records Were Beaten By

955 broken records

Margins by which the 955 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 160.0. Ties are not counted.

Top 20 by Significance

21 September 2010

Top 20 records on 21 September 2010 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 2010	Pinnacle, AU	monthly rain	84.0 mm (3.3 in)	61.0 mm (2.4 in)	35 years	64 of 100 (Major)
21 September 2010	Kharkiv, UA	daily rain	52.1 mm (2.1 in)	40.6 mm (1.6 in)	59 years	64 of 100 (Major)
21 September 2010	Petford, AU	daily rain	27.0 mm (1.1 in)	27.0 mm (1.1 in)	89 years	59 of 100 (Notable)
21 September 2010	Querobabi, MX	daily rain	62.5 mm (2.5 in)	62.5 mm (2.5 in)	51 years	58 of 100 (Notable)
21 September 2010	Fairymead Sugar Mill, AU	daily rain	117.0 mm (4.6 in)	82.8 mm (3.3 in)	24 years	57 of 100 (Notable)
21 September 2010	Waterloo, AU	daily rain	73.0 mm (2.9 in)	59.0 mm (2.3 in)	40 years	57 of 100 (Notable)
21 September 2010	Todos Santos (Dge), MX	daily rain	149.9 mm (5.9 in)	123.7 mm (4.9 in)	33 years	57 of 100 (Notable)
21 September 2010	Urangan Hibiscus St, AU	monthly rain	91.8 mm (3.6 in)	46.6 mm (1.8 in)	9 years	56 of 100 (Notable)
21 September 2010	Mossman Central Mill, AU	daily rain	31.0 mm (1.2 in)	19.3 mm (0.8 in)	89 years	55 of 100 (Notable)
21 September 2010	Kilkivan Post Office, AU	daily rain	41.6 mm (1.6 in)	16.7 mm (0.7 in)	96 years	55 of 100 (Notable)
21 September 2010	Brian Pastures, AU	monthly rain	98.8 mm (3.9 in)	42.8 mm (1.7 in)	0 years	55 of 100 (Notable)
21 September 2010	Wakkanai, JP	daily rain	67.1 mm (2.6 in)	50.1 mm (2.0 in)	33 years	54 of 100 (Notable)
21 September 2010	Eidsvold Post Office, AU	daily rain	32.6 mm (1.3 in)	14.8 mm (0.6 in)	119 years	53 of 100 (Notable)
21 September 2010	Lady Elliot Island, AU	daily rain	66.6 mm (2.6 in)	36.4 mm (1.4 in)	24 years	52 of 100 (Notable)
21 September 2010	Tuan Creek Forest STN, AU	daily rain	72.6 mm (2.9 in)	33.1 mm (1.3 in)	24 years	52 of 100 (Notable)
21 September 2010	Wushaoling, CN	daily rain	26.6 mm (1.0 in)	16.3 mm (0.6 in)	39 years	51 of 100 (Notable)
21 September 2010	Suaqui Grande (Smn), MX	daily rain	64.8 mm (2.6 in)	41.4 mm (1.6 in)	67 years	51 of 100 (Notable)
21 September 2010	Simpson 6 N - Wildhorse, US	daily rain	35.6 mm (1.4 in)	25.7 mm (1.0 in)	40 years	51 of 100 (Notable)
21 September 2010	Koumala Hatfields Road, AU	daily rain	27.0 mm (1.1 in)	20.9 mm (0.8 in)	85 years	49 of 100 (Notable)
21 September 2010	Lethebrook, AU	daily rain	51.0 mm (2.0 in)	27.0 mm (1.1 in)	13 years	49 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 2010

Records set or tied on this calendar date in each year from 1805 to 2010. 2010 had 1,290 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 2010-09-21: 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	895
20 to 40	44
40 to 60	8
60 to 80	3
80 to 100	2
100 to 120	1
120 to 140	1
140 to 160	1