Weather Records on 20 September 2023

482 weather records were set or tied worldwide on 20 September 2023. Highest significance: Karesuando, SE.

Key Facts for 20 September 2023

On 20 September 2023, 482 weather records were set or tied at long-record stations worldwide.
346 were record highs and 26 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 462 daily.
Karesuando set a monthly record snow depth of 15.0 cm (5.9 in) on 20 September 2023.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 442 records.

Record Map

482 stations

482 station records on 20 September 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
Karesuando	Sweden	Record snow depth	15.0 cm (5.9 in)	82 of 100 (Exceptional)
Kiruna	Sweden	Record snow depth	38.0 cm (15.0 in)	74 of 100 (Major)
Bakke	Norway	Record daily precipitation	92.5 mm (3.6 in)	54 of 100 (Notable)
Hurn	United Kingdom	Record daily precipitation	45.2 mm (1.8 in)	54 of 100 (Notable)
Bronte Heights	Australia	Record daily precipitation	40.0 mm (1.6 in)	51 of 100 (Notable)
Sauda	Norway	Record daily precipitation	98.6 mm (3.9 in)	51 of 100 (Notable)
Soyland I Gjesdal	Norway	Record daily precipitation	85.6 mm (3.4 in)	51 of 100 (Notable)
Bulken	Norway	Record daily precipitation	53.7 mm (2.1 in)	50 of 100 (Notable)
Lovozero	Russia	Record daily precipitation	32.0 mm (1.3 in)	48 of 100 (Notable)
Moncegorsk	Russia	Record daily precipitation	30.0 mm (1.2 in)	48 of 100 (Notable)
Montague Island Lighthouse	Australia	Record high minimum temperature	22.1 C (71.8 F)	47 of 100 (Notable)
Laketown	United States	Record high minimum temperature	12.8 C (55.0 F)	45 of 100 (Notable)
Sand I Ryfylke II	Norway	Record daily precipitation	88.6 mm (3.5 in)	44 of 100 (Notable)
Olonec	Russia	Record daily precipitation	25.9 mm (1.0 in)	44 of 100 (Notable)
Cambridge Niab	United Kingdom	Record daily precipitation	28.2 mm (1.1 in)	44 of 100 (Notable)
Uman	Ukraine	Record high minimum temperature	16.5 C (61.7 F)	44 of 100 (Notable)
Brownsville	United States	Record high maximum temperature	37.2 C (99.0 F)	44 of 100 (Notable)
Ellendale Post Office	Australia	Record daily precipitation	27.5 mm (1.1 in)	42 of 100 (Notable)
Dalatangi	Iceland	Record daily precipitation	63.3 mm (2.5 in)	42 of 100 (Notable)
Risnes I Fjotland	Norway	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Wessington Springs	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
Karlshamn	Sweden	Record high minimum temperature	16.6 C (61.9 F)	40 of 100 (Notable)
Carroll	United States	Record daily precipitation	30.7 mm (1.2 in)	40 of 100 (Notable)
Zeehan (West Coast Pioneers Mu	Australia	Record daily precipitation	49.4 mm (1.9 in)	37 of 100 (Notable)
Maudal	Norway	Record daily precipitation	101.8 mm (4.0 in)	37 of 100 (Notable)
Velikie Luki	Russia	Record high minimum temperature	14.7 C (58.5 F)	37 of 100 (Notable)
Den Helder-1	Netherlands	Record high minimum temperature	17.9 C (64.2 F)	36 of 100 (Notable)
Juzhno-Kurilsk	Russia	Record high maximum temperature	25.2 C (77.4 F)	36 of 100 (Notable)
Ames 5 SE	United States	Record daily precipitation	65.0 mm (2.6 in)	36 of 100 (Notable)
Newton	United States	Record daily precipitation	31.2 mm (1.2 in)	36 of 100 (Notable)
Ft Kent	United States	Record daily precipitation	40.4 mm (1.6 in)	36 of 100 (Notable)
Gabo Island Lighthouse	Australia	Record high minimum temperature	18.7 C (65.7 F)	35 of 100 (Notable)
Stiege	Germany	Record high minimum temperature	12.5 C (54.5 F)	35 of 100 (Notable)
Purdum	United States	Record high maximum temperature	36.1 C (97.0 F)	35 of 100 (Notable)
Elizabeth City	United States	Record high minimum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Ulladulla AWS	Australia	Record high minimum temperature	22.1 C (71.8 F)	34 of 100 (Routine)
Kandalaksa	Russia	Record daily precipitation	32.0 mm (1.3 in)	34 of 100 (Routine)
Staraja_Russa	Russia	Record high minimum temperature	14.6 C (58.3 F)	34 of 100 (Routine)
Swanage	United Kingdom	Record daily precipitation	31.6 mm (1.2 in)	34 of 100 (Routine)
Rothamsted	United Kingdom	Record daily precipitation	33.8 mm (1.3 in)	34 of 100 (Routine)
Schwerin	Germany	Record high minimum temperature	16.9 C (62.4 F)	33 of 100 (Routine)
Yamagata	Japan	Record high minimum temperature	22.2 C (72.0 F)	33 of 100 (Routine)
Padun	Russia	Record daily precipitation	32.0 mm (1.3 in)	33 of 100 (Routine)
Culman	Russia	Record low minimum temperature	-10.1 C (13.8 F)	33 of 100 (Routine)
Oxford	United Kingdom	Record high minimum temperature	16.4 C (61.5 F)	33 of 100 (Routine)
Rothamsted	United Kingdom	Record high minimum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Chernivtsi	Ukraine	Record high minimum temperature	15.8 C (60.4 F)	32 of 100 (Routine)
Rennes-St Jacques	France	Record daily precipitation	34.7 mm (1.4 in)	31 of 100 (Routine)
Chichibu	Japan	Record high minimum temperature	23.2 C (73.8 F)	31 of 100 (Routine)
Pisco Intl	Peru	Record high minimum temperature	17.4 C (63.3 F)	31 of 100 (Routine)
Nagornyj	Russia	Record low minimum temperature	-11.8 C (10.8 F)	31 of 100 (Routine)
Onslow Airport	Australia	Record high minimum temperature	20.7 C (69.3 F)	30 of 100 (Routine)
Parramatta North (Masons Drive	Australia	Record high minimum temperature	22.5 C (72.5 F)	30 of 100 (Routine)
Strathgordon (Gordon Power Sta	Australia	Record daily precipitation	74.6 mm (2.9 in)	30 of 100 (Routine)
Adjuntas Substn	Puerto Rico [United States]	Record daily precipitation	99.1 mm (3.9 in)	30 of 100 (Routine)
Gravette	United States	Record daily precipitation	87.1 mm (3.4 in)	30 of 100 (Routine)
Cassville 1 NE	United States	Record daily precipitation	55.1 mm (2.2 in)	30 of 100 (Routine)
El Paso Intl AP	United States	Record high maximum temperature	37.2 C (99.0 F)	30 of 100 (Routine)
Mishima	Japan	Record high minimum temperature	26.5 C (79.7 F)	29 of 100 (Routine)
Hafslo	Norway	Record daily precipitation	34.2 mm (1.3 in)	29 of 100 (Routine)

Counts by Type and Timescale

482 records

Records set or tied on 20 September 2023 by type: Highest daily maximum 117, Lowest daily maximum 17, Highest daily minimum 229, Lowest daily minimum 9, Heaviest daily rainfall 104, Deepest snow cover 6.

Records on 20 September 2023 by type
Record type	Records
Highest daily maximum	117
Lowest daily maximum	17
Highest daily minimum	229
Lowest daily minimum	9
Heaviest daily rainfall	104
Heaviest daily snowfall	0
Deepest snow cover	6

Records on 20 September 2023 by timescale: all-time 0, monthly 20, daily 462.

How Much Records Were Beaten By

401 broken records

Margins by which the 401 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 170.0. Ties are not counted.

Top 20 by Significance

20 September 2023

Top 20 records on 20 September 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 2023	Karesuando, SE	monthly snow depth	15.0 cm (5.9 in)	8.0 cm (3.1 in)	74 years	82 of 100 (Exceptional)
20 September 2023	Kiruna, SE	monthly snow depth	38.0 cm (15.0 in)	17.0 cm (6.7 in)	90 years	74 of 100 (Major)
20 September 2023	Bakke, NO	daily rain	92.5 mm (3.6 in)	32.0 mm (1.3 in)	64 years	54 of 100 (Notable)
20 September 2023	Hurn, GB	daily rain	45.2 mm (1.8 in)	28.8 mm (1.1 in)	29 years	54 of 100 (Notable)
20 September 2023	Bronte Heights, AU	monthly rain	40.0 mm (1.6 in)	0.9 mm (0.04 in)	103 years	51 of 100 (Notable)
20 September 2023	Sauda, NO	monthly rain	98.6 mm (3.9 in)	21.3 mm (0.8 in)	53 years	51 of 100 (Notable)
20 September 2023	Soyland I Gjesdal, NO	daily rain	85.6 mm (3.4 in)	15.6 mm (0.6 in)	112 years	51 of 100 (Notable)
20 September 2023	Bulken, NO	daily rain	53.7 mm (2.1 in)	23.8 mm (0.9 in)	61 years	50 of 100 (Notable)
20 September 2023	Lovozero, RU	daily rain	32.0 mm (1.3 in)	10.9 mm (0.4 in)	52 years	48 of 100 (Notable)
20 September 2023	Moncegorsk, RU	daily rain	30.0 mm (1.2 in)	11.4 mm (0.4 in)	52 years	48 of 100 (Notable)
20 September 2023	Montague Island Lighthouse, AU	monthly high min	22.1 C (71.8 F)	3.4 C (6.1 F)	51 years	47 of 100 (Notable)
20 September 2023	Laketown, US	daily high min	12.8 C (55.0 F)	2.2 C (4.0 F)	118 years	45 of 100 (Notable)
20 September 2023	Sand I Ryfylke II, NO	daily rain	88.6 mm (3.5 in)	42.0 mm (1.7 in)	18 years	44 of 100 (Notable)
20 September 2023	Olonec, RU	daily rain	25.9 mm (1.0 in)	13.7 mm (0.5 in)	37 years	44 of 100 (Notable)
20 September 2023	Cambridge Niab, GB	daily rain	28.2 mm (1.1 in)	5.4 mm (0.21 in)	86 years	44 of 100 (Notable)
20 September 2023	Uman, UA	daily high min	16.5 C (61.7 F)	1.8 C (3.2 F)	109 years	44 of 100 (Notable)
20 September 2023	Brownsville, US	daily high max	37.2 C (99.0 F)	1.1 C (2.0 F)	122 years	44 of 100 (Notable)
20 September 2023	Ellendale Post Office, AU	daily rain	27.5 mm (1.1 in)	2.1 mm (0.08 in)	112 years	42 of 100 (Notable)
20 September 2023	Dalatangi, IS	daily rain	63.3 mm (2.5 in)	22.3 mm (0.9 in)	68 years	42 of 100 (Notable)
20 September 2023	Risnes I Fjotland, NO	daily rain	66.0 mm (2.6 in)	24.0 mm (0.9 in)	41 years	42 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

1812 to 2023

Records set or tied on this calendar date in each year from 1812 to 2023. 2023 had 482 records.

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

Records on 09-20 in each year
Year	Records
1812	1
1837	1
1840	1
1844	1
1848	2
1851	1
1852	1
1854	2
1855	1
1856	2
1859	2
1860	1
1862	1
1870	1
1871	2
1882	2
1883	1
1884	1
1886	2
1887	1
1888	2
1889	8
1891	4
1893	5
1894	1
1895	2
1896	1
1897	16
1898	4
1899	1
1900	2
1901	3
1902	3
1903	3
1904	12
1905	8
1906	22
1907	11
1908	24
1909	10
1910	8
1911	21
1912	34
1913	48
1914	28
1915	239
1916	28
1917	100
1918	59
1919	55
1920	64
1921	40
1922	52
1923	249
1924	329
1925	330
1926	129
1927	169
1928	144
1929	373
1930	102
1931	564
1932	270
1933	223
1934	349
1935	201
1936	133
1937	385
1938	506
1939	312
1940	591
1941	582
1942	436
1943	419
1944	466
1945	406
1946	766
1947	460
1948	454
1949	268
1950	435
1951	267
1952	434
1953	479
1954	628
1955	625
1956	985
1957	514
1958	410
1959	489
1960	352
1961	384
1962	707
1963	290
1964	482
1965	1,180
1966	414
1967	449
1968	617
1969	604
1970	591
1971	884
1972	582
1973	569
1974	771
1975	527
1976	375
1977	776
1978	1,216
1979	767
1980	567
1981	979
1982	911
1983	1,958
1984	895
1985	730
1986	743
1987	856
1988	698
1989	968
1990	743
1991	1,835
1992	718
1993	1,031
1994	788
1995	1,374
1996	1,077
1997	1,282
1998	1,157
1999	923
2000	908
2001	821
2002	845
2003	910
2004	1,156
2005	960
2006	732
2007	645
2008	648
2009	715
2010	1,497
2011	650
2012	549
2013	595
2014	577
2015	439
2016	778
2017	920
2018	1,020
2019	835
2020	630
2021	565
2022	786
2023	482
2024	596
2025	877
2026	682

Download the Data

Data for records on 2023-09-20: 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 25	388
25 to 50	10
50 to 75	1
75 to 100	1
100 to 125	0
125 to 150	0
150 to 175	1