Weather Records on 21 September 2012

595 weather records were set or tied worldwide on 21 September 2012. Highest significance: Northdown (Hamley), AU.

Key Facts for 21 September 2012

On 21 September 2012, 595 weather records were set or tied at long-record stations worldwide.
269 were record highs and 190 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 5 monthly and 589 daily.
Northdown (Hamley) set a daily record precipitation of 34.0 mm (1.3 in) on 21 September 2012.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 450 records.

Record Map

595 stations

595 station records on 21 September 2012 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 2012: highest significance records shown on the map
Station	Country	Type	Value	Significance
Northdown (Hamley)	Australia	Record daily precipitation	34.0 mm (1.3 in)	62 of 100 (Major)
Bream Creek (Stroud)	Australia	Record daily precipitation	30.0 mm (1.2 in)	50 of 100 (Notable)
Warroad	United States	Record low minimum temperature	-8.9 C (16.0 F)	50 of 100 (Notable)
Beaconsfield (Mine & Heritage	Australia	Record daily precipitation	42.3 mm (1.7 in)	49 of 100 (Notable)
Halmstad	Sweden	Record daily precipitation	31.0 mm (1.2 in)	46 of 100 (Notable)
McAlinden	Australia	Record daily precipitation	35.6 mm (1.4 in)	44 of 100 (Notable)
Varberg	Sweden	Record daily precipitation	25.8 mm (1.0 in)	42 of 100 (Notable)
Bergumerdam	Netherlands	Record daily precipitation	26.1 mm (1.0 in)	41 of 100 (Notable)
Devonport Airport	Australia	Record daily precipitation	27.4 mm (1.1 in)	40 of 100 (Notable)
McDermitt	United States	Record high maximum temperature	31.7 C (89.1 F)	39 of 100 (Notable)
Prineville	United States	Record high minimum temperature	12.2 C (54.0 F)	39 of 100 (Notable)
Saint Paul Is AP	United States	Record low minimum temperature	-2.8 C (27.0 F)	39 of 100 (Notable)
Akjoujt	Mauritania	Record high maximum temperature	48.1 C (118.6 F)	38 of 100 (Notable)
Cottage Grove 2E	United States	Record low maximum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
El-Golea	Algeria	Record high minimum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Graton	United States	Record low minimum temperature	2.2 C (36.0 F)	37 of 100 (Notable)
Irishtown	Australia	Record daily precipitation	28.8 mm (1.1 in)	36 of 100 (Notable)
Aginskoe	Russia	Record daily precipitation	34.0 mm (1.3 in)	36 of 100 (Notable)
Haggarda	Sweden	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Snavlunda	Sweden	Record daily precipitation	25.6 mm (1.0 in)	36 of 100 (Notable)
Ubon Ratchathani	Thailand	Record daily precipitation	86.4 mm (3.4 in)	36 of 100 (Notable)
Calarasi	Romania	Record daily precipitation	44.8 mm (1.8 in)	35 of 100 (Notable)
Mawbanna (Mawbanna Road)	Australia	Record daily precipitation	38.0 mm (1.5 in)	34 of 100 (Routine)
Mount Wellington	Australia	Record daily precipitation	25.0 mm (1.0 in)	34 of 100 (Routine)
Petropavlovsk-Kamchatskij	Russia	Record low maximum temperature	8.0 C (46.4 F)	34 of 100 (Routine)
Samaria	Mexico	Record low maximum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Sta. Cruz de Tenerife	Spain	Record high minimum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Udu Point	Fiji	Record daily precipitation	63.0 mm (2.5 in)	32 of 100 (Routine)
Dos Arroyos	Mexico	Record low minimum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
South Forest (Plummers Road)	Australia	Record daily precipitation	25.8 mm (1.0 in)	30 of 100 (Routine)
Buzau	Romania	Record daily precipitation	44.2 mm (1.7 in)	30 of 100 (Routine)
Bucuresti-Baneasa	Romania	Record daily precipitation	52.6 mm (2.1 in)	30 of 100 (Routine)
Archbold Bio STN	United States	Record daily precipitation	63.8 mm (2.5 in)	30 of 100 (Routine)
Havraryd_D	Sweden	Record daily precipitation	38.5 mm (1.5 in)	29 of 100 (Routine)
Cuyamaca	United States	Record high maximum temperature	34.4 C (93.9 F)	29 of 100 (Routine)
Kenmare 1 WSW	United States	Record low minimum temperature	-6.1 C (21.0 F)	29 of 100 (Routine)
Barberena	Mexico	Record low minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Madrid/Cuatrovientos	Spain	Record high minimum temperature	18.4 C (65.1 F)	28 of 100 (Routine)
Valladolid (Villanubla)	Spain	Record high minimum temperature	15.7 C (60.3 F)	28 of 100 (Routine)
Ulricehamn	Sweden	Record daily precipitation	28.7 mm (1.1 in)	28 of 100 (Routine)
Cloverdale	United States	Record low maximum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Minchumina	United States	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Reno AP	United States	Record high maximum temperature	32.8 C (91.0 F)	28 of 100 (Routine)
Nantes-Bouguenais	France	Record low maximum temperature	13.9 C (57.0 F)	27 of 100 (Routine)
Pabellon Campo Experimental	Mexico	Record low minimum temperature	6.1 C (43.0 F)	27 of 100 (Routine)
Schiermonnikoog	Netherlands	Record daily precipitation	35.6 mm (1.4 in)	27 of 100 (Routine)
Pechora	Russia	Record high minimum temperature	12.2 C (54.0 F)	27 of 100 (Routine)
Laverton Raaf	Australia	Record high minimum temperature	12.6 C (54.7 F)	26 of 100 (Routine)
Rennes-St Jacques	France	Record low maximum temperature	12.0 C (53.6 F)	26 of 100 (Routine)
Belle Ile - le Talut	France	Record low maximum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Hirado	Japan	Record low minimum temperature	15.2 C (59.4 F)	26 of 100 (Routine)
Jaral de Berrios	Mexico	Record low minimum temperature	1.1 C (34.0 F)	26 of 100 (Routine)
Boca del Cerro	Mexico	Record low maximum temperature	28.9 C (84.0 F)	26 of 100 (Routine)
Macuspana (Dge)	Mexico	Record low maximum temperature	28.3 C (82.9 F)	26 of 100 (Routine)
Lindesnes Fyr	Norway	Record low minimum temperature	5.7 C (42.3 F)	26 of 100 (Routine)
Im.E.K.Fedorova(Bolvanskii Nos	Russia	Record high minimum temperature	8.4 C (47.1 F)	26 of 100 (Routine)
Hoseda Hard	Russia	Record high minimum temperature	11.2 C (52.2 F)	26 of 100 (Routine)
Orick Prairie Creek Park	United States	Record low maximum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Government Camp	United States	Record high maximum temperature	28.3 C (82.9 F)	26 of 100 (Routine)
Imperial Co AP	United States	Record high minimum temperature	26.1 C (79.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

595 records

Records set or tied on 21 September 2012 by type: Highest daily maximum 117, Lowest daily maximum 63, Highest daily minimum 152, Lowest daily minimum 127, Heaviest daily rainfall 136.

Records on 21 September 2012 by type
Record type	Records
Highest daily maximum	117
Lowest daily maximum	63
Highest daily minimum	152
Lowest daily minimum	127
Heaviest daily rainfall	136
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 2012 by timescale: all-time 1, monthly 5, daily 589.

How Much Records Were Beaten By

444 broken records

Margins by which the 444 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.7. Ties are not counted.

Top 20 by Significance

21 September 2012

Top 20 records on 21 September 2012 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 2012	Northdown (Hamley), AU	daily rain	34.0 mm (1.3 in)	20.3 mm (0.8 in)	78 years	62 of 100 (Major)
21 September 2012	Bream Creek (Stroud), AU	daily rain	30.0 mm (1.2 in)	13.5 mm (0.5 in)	78 years	50 of 100 (Notable)
21 September 2012	Warroad, US	monthly low min	-8.9 C (16.0 F)	0.6 C (1.1 F)	99 years	50 of 100 (Notable)
21 September 2012	Beaconsfield (Mine & Heritage, AU	daily rain	42.3 mm (1.7 in)	23.9 mm (0.9 in)	28 years	49 of 100 (Notable)
21 September 2012	Halmstad, SE	daily rain	31.0 mm (1.2 in)	7.3 mm (0.29 in)	85 years	46 of 100 (Notable)
21 September 2012	McAlinden, AU	daily rain	35.6 mm (1.4 in)	18.0 mm (0.7 in)	33 years	44 of 100 (Notable)
21 September 2012	Varberg, SE	daily rain	25.8 mm (1.0 in)	5.4 mm (0.21 in)	82 years	42 of 100 (Notable)
21 September 2012	Bergumerdam, NL	daily rain	26.1 mm (1.0 in)	10.9 mm (0.4 in)	60 years	41 of 100 (Notable)
21 September 2012	Devonport Airport, AU	daily rain	27.4 mm (1.1 in)	18.0 mm (0.7 in)	41 years	40 of 100 (Notable)
21 September 2012	McDermitt, US	daily high max	31.7 C (89.1 F)	0.6 C (1.1 F)	96 years	39 of 100 (Notable)
21 September 2012	Prineville, US	daily high min	12.2 C (54.0 F)	1.6 C (2.9 F)	88 years	39 of 100 (Notable)
21 September 2012	Saint Paul Is AP, US	daily low min	-2.8 C (27.0 F)	1.7 C (3.1 F)	81 years	39 of 100 (Notable)
21 September 2012	Akjoujt, MR	daily high max	48.1 C (118.6 F)	4.3 C (7.7 F)	57 years	38 of 100 (Notable)
21 September 2012	Cottage Grove 2E, US	daily low max	15.0 C (59.0 F)	1.1 C (2.0 F)	92 years	38 of 100 (Notable)
21 September 2012	El-Golea, DZ	daily high min	27.8 C (82.0 F)	0.8 C (1.4 F)	85 years	37 of 100 (Notable)
21 September 2012	Graton, US	daily low min	2.2 C (36.0 F)	1.1 C (2.0 F)	86 years	37 of 100 (Notable)
21 September 2012	Irishtown, AU	daily rain	28.8 mm (1.1 in)	0.1 mm (0.00 in)	89 years	36 of 100 (Notable)
21 September 2012	Aginskoe, RU	daily rain	34.0 mm (1.3 in)	14.9 mm (0.6 in)	11 years	36 of 100 (Notable)
21 September 2012	Haggarda, SE	daily rain	38.4 mm (1.5 in)	9.7 mm (0.38 in)	53 years	36 of 100 (Notable)
21 September 2012	Snavlunda, SE	daily rain	25.6 mm (1.0 in)	8.8 mm (0.35 in)	53 years	36 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 2012

Records set or tied on this calendar date in each year from 1805 to 2012. 2012 had 595 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 2012-09-21: 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 2026-10-13 (13 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 5	376
5 to 10	40
10 to 15	13
15 to 20	5
20 to 25	4
25 to 30	3
30 to 35	2
35 to 40	1