Weather Records on 23 September 2012

785 weather records were set or tied worldwide on 23 September 2012. Highest significance: Mayaguez City, PR.

Key Facts for 23 September 2012

On 23 September 2012, 785 weather records were set or tied at long-record stations worldwide.
323 were record highs and 241 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 19 monthly and 763 daily.
Mayaguez City set a daily record high minimum temperature of 27.2 C (81.0 F) on 23 September 2012.
Across 169 earlier years (1793 to 2026) the same calendar date averaged 429 records.

Record Map

785 stations

785 station records on 23 September 2012 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 September 2012: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mayaguez City	Puerto Rico [United States]	Record high minimum temperature	27.2 C (81.0 F)	68 of 100 (Major)
Mantsala Hirvihaara	Finland	Record daily precipitation	46.7 mm (1.8 in)	60 of 100 (Major)
Vihti Hiiskula	Finland	Record daily precipitation	32.0 mm (1.3 in)	57 of 100 (Notable)
Hyvinkaa Hyvinkaankyla	Finland	Record daily precipitation	39.8 mm (1.6 in)	53 of 100 (Notable)
Sysma Joutsjarvi	Finland	Record daily precipitation	39.0 mm (1.5 in)	52 of 100 (Notable)
Hurn	United Kingdom	Record daily precipitation	47.6 mm (1.9 in)	51 of 100 (Notable)
Oujda	Morocco	Record high maximum temperature	40.8 C (105.4 F)	50 of 100 (Notable)
Vantaa Helsinki-Vantaan Lentoa	Finland	Record daily precipitation	35.5 mm (1.4 in)	48 of 100 (Notable)
Lahti Laune	Finland	Record daily precipitation	40.5 mm (1.6 in)	47 of 100 (Notable)
Twenthe-1	Netherlands	Record daily precipitation	33.6 mm (1.3 in)	47 of 100 (Notable)
Ovezande	Netherlands	Record daily precipitation	31.1 mm (1.2 in)	47 of 100 (Notable)
Nummi-Pusula Leppakorpi	Finland	Record daily precipitation	27.2 mm (1.1 in)	46 of 100 (Notable)
Slapton	United Kingdom	Record daily precipitation	58.0 mm (2.3 in)	46 of 100 (Notable)
Shawbury	United Kingdom	Record daily precipitation	45.8 mm (1.8 in)	45 of 100 (Notable)
Sandy Hook	United States	Record low minimum temperature	7.2 C (45.0 F)	45 of 100 (Notable)
Nurmijarvi Geofysiikan Observa	Finland	Record daily precipitation	43.1 mm (1.7 in)	44 of 100 (Notable)
Oxford	United Kingdom	Record daily precipitation	32.8 mm (1.3 in)	44 of 100 (Notable)
Hameenlinna Lammi Pappila	Finland	Record daily precipitation	33.9 mm (1.3 in)	43 of 100 (Notable)
Biervliet	Netherlands	Record daily precipitation	37.1 mm (1.5 in)	43 of 100 (Notable)
Winterset 4N	United States	Record low minimum temperature	-2.8 C (27.0 F)	43 of 100 (Notable)
Tuscola	United States	Record low maximum temperature	15.6 C (60.1 F)	42 of 100 (Notable)
Colville	United States	Record high minimum temperature	12.8 C (55.0 F)	42 of 100 (Notable)
Kunda	Estonia	Record daily precipitation	38.5 mm (1.5 in)	41 of 100 (Notable)
Pte de la Hague	France	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Hayling Island	United Kingdom	Record daily precipitation	36.6 mm (1.4 in)	41 of 100 (Notable)
Wisley	United Kingdom	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Wamsutter	United States	Record high minimum temperature	8.9 C (48.0 F)	41 of 100 (Notable)
Alencon-Valframbert	France	Record daily precipitation	32.2 mm (1.3 in)	40 of 100 (Notable)
Herwijnen_1	Netherlands	Record daily precipitation	28.8 mm (1.1 in)	40 of 100 (Notable)
Indio Fire STN	United States	Record high minimum temperature	27.2 C (81.0 F)	40 of 100 (Notable)
Osage City	United States	Record low minimum temperature	1.7 C (35.1 F)	40 of 100 (Notable)
Howell Wwtp	United States	Record low maximum temperature	15.0 C (59.0 F)	40 of 100 (Notable)
Gorinchem	Netherlands	Record daily precipitation	27.7 mm (1.1 in)	39 of 100 (Notable)
St Kruis	Netherlands	Record daily precipitation	33.3 mm (1.3 in)	39 of 100 (Notable)
Labuan	Malaysia	Record daily precipitation	77.0 mm (3.0 in)	38 of 100 (Notable)
Armagh	United Kingdom	Record low maximum temperature	9.9 C (49.8 F)	38 of 100 (Notable)
Swanage	United Kingdom	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Ouessant	France	Record daily precipitation	25.9 mm (1.0 in)	37 of 100 (Notable)
Towner 2 NE	United States	Record low minimum temperature	-7.2 C (19.0 F)	37 of 100 (Notable)
'S Heerenhoek	Netherlands	Record daily precipitation	25.6 mm (1.0 in)	36 of 100 (Notable)
Yeovilton	United Kingdom	Record daily precipitation	29.0 mm (1.1 in)	36 of 100 (Notable)
Santa Rosa	United States	Record high maximum temperature	33.9 C (93.0 F)	36 of 100 (Notable)
Almelo	Netherlands	Record daily precipitation	26.1 mm (1.0 in)	35 of 100 (Notable)
Lyneham	United Kingdom	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
McKinley Park	United States	Record high maximum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Aberdeen	United States	Record low minimum temperature	-5.6 C (21.9 F)	35 of 100 (Notable)
Lingen	Germany	Record daily precipitation	26.5 mm (1.0 in)	34 of 100 (Routine)
Valley	United Kingdom	Record low maximum temperature	12.2 C (54.0 F)	34 of 100 (Routine)
Bude	United Kingdom	Record daily precipitation	29.4 mm (1.2 in)	34 of 100 (Routine)
Bognor Regis	United Kingdom	Record daily precipitation	32.5 mm (1.3 in)	34 of 100 (Routine)
Crookston NW Exp STN	United States	Record low minimum temperature	-6.7 C (19.9 F)	34 of 100 (Routine)
Onida 4 NW	United States	Record low minimum temperature	-4.4 C (24.1 F)	34 of 100 (Routine)
Hameenlinna Pirttikoski	Finland	Record daily precipitation	35.5 mm (1.4 in)	33 of 100 (Routine)
Lochem	Netherlands	Record daily precipitation	27.0 mm (1.1 in)	33 of 100 (Routine)
Livny	Russia	Record daily precipitation	77.5 mm (3.1 in)	33 of 100 (Routine)
Utah Lake Lehi	United States	Record high minimum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
McKinley Park	United States	Record high minimum temperature	10.0 C (50.0 F)	33 of 100 (Routine)
Baltijsk	Belarus	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Heinola Asemantaus	Finland	Record daily precipitation	35.5 mm (1.4 in)	32 of 100 (Routine)
Woudenberg	Netherlands	Record daily precipitation	30.8 mm (1.2 in)	32 of 100 (Routine)

Counts by Type and Timescale

785 records

Records set or tied on 23 September 2012 by type: Highest daily maximum 165, Lowest daily maximum 48, Highest daily minimum 158, Lowest daily minimum 193, Heaviest daily rainfall 221.

Records on 23 September 2012 by type
Record type	Records
Highest daily maximum	165
Lowest daily maximum	48
Highest daily minimum	158
Lowest daily minimum	193
Heaviest daily rainfall	221
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 23 September 2012 by timescale: all-time 3, monthly 19, daily 763.

How Much Records Were Beaten By

611 broken records

Margins by which the 611 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 44.0. Ties are not counted.

Top 20 by Significance

23 September 2012

Top 20 records on 23 September 2012 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 2012	Mayaguez City, PR	daily high min	27.2 C (81.0 F)	3.9 C (7.0 F)	102 years	68 of 100 (Major)
23 September 2012	Mantsala Hirvihaara, FI	monthly rain	46.7 mm (1.8 in)	17.4 mm (0.7 in)	29 years	60 of 100 (Major)
23 September 2012	Vihti Hiiskula, FI	daily rain	32.0 mm (1.3 in)	22.9 mm (0.9 in)	45 years	57 of 100 (Notable)
23 September 2012	Hyvinkaa Hyvinkaankyla, FI	daily rain	39.8 mm (1.6 in)	20.6 mm (0.8 in)	29 years	53 of 100 (Notable)
23 September 2012	Sysma Joutsjarvi, FI	daily rain	39.0 mm (1.5 in)	23.3 mm (0.9 in)	28 years	52 of 100 (Notable)
23 September 2012	Hurn, GB	daily rain	47.6 mm (1.9 in)	30.9 mm (1.2 in)	20 years	51 of 100 (Notable)
23 September 2012	Oujda, MA	daily high max	40.8 C (105.4 F)	4.8 C (8.6 F)	95 years	50 of 100 (Notable)
23 September 2012	Vantaa Helsinki-Vantaan Lentoa, FI	daily rain	35.5 mm (1.4 in)	19.6 mm (0.8 in)	29 years	48 of 100 (Notable)
23 September 2012	Lahti Laune, FI	daily rain	40.5 mm (1.6 in)	17.9 mm (0.7 in)	29 years	47 of 100 (Notable)
23 September 2012	Twenthe-1, NL	daily rain	33.6 mm (1.3 in)	14.6 mm (0.6 in)	54 years	47 of 100 (Notable)
23 September 2012	Ovezande, NL	daily rain	31.1 mm (1.2 in)	18.9 mm (0.7 in)	44 years	47 of 100 (Notable)
23 September 2012	Nummi-Pusula Leppakorpi, FI	daily rain	27.2 mm (1.1 in)	19.0 mm (0.7 in)	13 years	46 of 100 (Notable)
23 September 2012	Slapton, GB	daily rain	58.0 mm (2.3 in)	41.8 mm (1.6 in)	5 years	46 of 100 (Notable)
23 September 2012	Shawbury, GB	daily rain	45.8 mm (1.8 in)	36.8 mm (1.4 in)	6 years	45 of 100 (Notable)
23 September 2012	Sandy Hook, US	daily low min	7.2 C (45.0 F)	1.9 C (3.4 F)	126 years	45 of 100 (Notable)
23 September 2012	Nurmijarvi Geofysiikan Observa, FI	monthly rain	43.1 mm (1.7 in)	8.9 mm (0.35 in)	39 years	44 of 100 (Notable)
23 September 2012	Oxford, GB	daily rain	32.8 mm (1.3 in)	5.9 mm (0.23 in)	85 years	44 of 100 (Notable)
23 September 2012	Hameenlinna Lammi Pappila, FI	daily rain	33.9 mm (1.3 in)	14.4 mm (0.6 in)	28 years	43 of 100 (Notable)
23 September 2012	Biervliet, NL	daily rain	37.1 mm (1.5 in)	18.7 mm (0.7 in)	22 years	43 of 100 (Notable)
23 September 2012	Winterset 4N, US	daily low min	-2.8 C (27.0 F)	1.7 C (3.1 F)	115 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 2012

Records set or tied on this calendar date in each year from 1793 to 2012. 2012 had 785 records.

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

Records on 09-23 in each year
Year	Records
1793	1
1796	1
1799	1
1804	1
1832	1
1835	1
1838	1
1842	3
1843	1
1845	2
1848	1
1849	1
1850	1
1851	2
1854	3
1855	1
1859	2
1864	1
1865	1
1866	1
1868	1
1871	1
1872	1
1874	1
1875	1
1876	1
1877	1
1881	4
1882	2
1885	1
1886	1
1887	1
1888	1
1889	3
1890	2
1891	1
1892	2
1893	4
1895	9
1896	5
1897	1
1898	2
1899	4
1900	4
1901	2
1902	6
1903	7
1904	19
1905	6
1906	6
1907	19
1908	19
1909	15
1910	8
1911	11
1912	15
1913	22
1914	29
1915	25
1916	324
1917	56
1918	34
1919	40
1920	44
1921	47
1922	34
1923	74
1924	194
1925	223
1926	459
1927	247
1928	382
1929	198
1930	472
1931	600
1932	383
1933	281
1934	361
1935	239
1936	377
1937	557
1938	389
1939	279
1940	374
1941	490
1942	557
1943	322
1944	381
1945	652
1946	623
1947	803
1948	259
1949	496
1950	267
1951	462
1952	432
1953	271
1954	324
1955	852
1956	299
1957	539
1958	641
1959	307
1960	470
1961	670
1962	344
1963	568
1964	322
1965	783
1966	528
1967	341
1968	481
1969	450
1970	1,457
1971	578
1972	461
1973	674
1974	1,543
1975	1,038
1976	463
1977	616
1978	500
1979	586
1980	1,037
1981	717
1982	775
1983	1,744
1984	1,121
1985	924
1986	740
1987	1,077
1988	653
1989	1,376
1990	702
1991	519
1992	976
1993	983
1994	1,140
1995	1,868
1996	809
1997	1,060
1998	1,326
1999	1,207
2000	2,026
2001	790
2002	930
2003	1,243
2004	986
2005	1,207
2006	1,509
2007	1,153
2008	835
2009	1,201
2010	1,360
2011	666
2012	785
2013	573
2014	595
2015	587
2016	774
2017	1,371
2018	693
2019	565
2020	618
2021	602
2022	551
2023	812
2024	499
2025	449
2026	384

Download the Data

Data for records on 2012-09-23: 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 2026-10-16 (16 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	561
10 to 20	40
20 to 30	5
30 to 40	2
40 to 50	3