Weather Records on 4 September 2009

914 weather records were set or tied worldwide on 4 September 2009. Highest significance: Nattavaara_A, SE.

Key Facts for 4 September 2009

On 4 September 2009, 914 weather records were set or tied at long-record stations worldwide.
367 were record highs and 185 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 42 monthly and 866 daily.
Nattavaara_A set a daily record precipitation of 32.8 mm (1.3 in) on 4 September 2009.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 448 records.

Record Map

914 stations

914 station records on 4 September 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nattavaara_A	Sweden	Record daily precipitation	32.8 mm (1.3 in)	63 of 100 (Major)
Lightning Ridge Post Office	Australia	Record daily precipitation	83.0 mm (3.3 in)	62 of 100 (Major)
Leon (Dge)	Mexico	Record daily precipitation	59.9 mm (2.4 in)	61 of 100 (Major)
Kredarica	Slovenia	Record daily precipitation	154.4 mm (6.1 in)	57 of 100 (Notable)
Gigant	Russia	Record daily precipitation	44.1 mm (1.7 in)	56 of 100 (Notable)
Barneveld	Netherlands	Record daily precipitation	38.0 mm (1.5 in)	55 of 100 (Notable)
Galeana (Smn)	Mexico	Record daily precipitation	39.9 mm (1.6 in)	54 of 100 (Notable)
Voorthuizen	Netherlands	Record daily precipitation	36.1 mm (1.4 in)	53 of 100 (Notable)
San Rafael	Mexico	Record daily precipitation	134.9 mm (5.3 in)	52 of 100 (Notable)
Cimljansk	Russia	Record daily precipitation	49.7 mm (2.0 in)	52 of 100 (Notable)
Murjek	Sweden	Record daily precipitation	49.5 mm (1.9 in)	52 of 100 (Notable)
San Luis Potosi (Dge)	Mexico	Record daily precipitation	42.4 mm (1.7 in)	51 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record low maximum temperature	27.8 C (82.0 F)	51 of 100 (Notable)
Puottaure	Sweden	Record daily precipitation	44.7 mm (1.8 in)	51 of 100 (Notable)
Kirkwall	United Kingdom	Record daily precipitation	33.5 mm (1.3 in)	51 of 100 (Notable)
Marion Rsvr	United States	Record daily precipitation	104.1 mm (4.1 in)	50 of 100 (Notable)
Burns 5W	United States	Record daily precipitation	104.1 mm (4.1 in)	49 of 100 (Notable)
Maquixco	Mexico	Record daily precipitation	51.8 mm (2.0 in)	48 of 100 (Notable)
Rygge	Norway	Record daily precipitation	42.3 mm (1.7 in)	48 of 100 (Notable)
Graz	Austria	Record daily precipitation	59.9 mm (2.4 in)	47 of 100 (Notable)
Acambaro	Mexico	Record daily precipitation	95.3 mm (3.8 in)	47 of 100 (Notable)
Lesjofors	Sweden	Record daily precipitation	41.7 mm (1.6 in)	47 of 100 (Notable)
Leuchars	United Kingdom	Record daily precipitation	55.4 mm (2.2 in)	47 of 100 (Notable)
Pelkosenniemi Kirkonkyla	Finland	Record daily precipitation	25.1 mm (1.0 in)	46 of 100 (Notable)
Gluckstadt	Germany	Record daily precipitation	31.7 mm (1.2 in)	46 of 100 (Notable)
San Luis de la Paz	Mexico	Record high maximum temperature	33.9 C (93.0 F)	45 of 100 (Notable)
Vitim	Russia	Record daily precipitation	27.1 mm (1.1 in)	45 of 100 (Notable)
Ellsworth	United States	Record daily precipitation	70.1 mm (2.8 in)	45 of 100 (Notable)
Goombungee Post Office	Australia	Record daily precipitation	25.0 mm (1.0 in)	44 of 100 (Notable)
Weiskirchen/Saar	Germany	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Sidney 1SSE	United States	Record low maximum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Nijkerk	Netherlands	Record daily precipitation	28.5 mm (1.1 in)	43 of 100 (Notable)
Floter	Norway	Record daily precipitation	48.9 mm (1.9 in)	43 of 100 (Notable)
Hid	Sweden	Record daily precipitation	67.2 mm (2.6 in)	42 of 100 (Notable)
Haggarda	Sweden	Record daily precipitation	35.0 mm (1.4 in)	42 of 100 (Notable)
Marlin	United States	Record daily precipitation	48.0 mm (1.9 in)	42 of 100 (Notable)
Mersa Matruh	Egypt	Record low minimum temperature	11.7 C (53.1 F)	41 of 100 (Notable)
Mangalore/Bajpe	India	Record daily precipitation	108.0 mm (4.3 in)	41 of 100 (Notable)
Soledad de Graciano	Mexico	Record daily precipitation	35.8 mm (1.4 in)	41 of 100 (Notable)
Drobeta Turnu Severin	Romania	Record high maximum temperature	34.3 C (93.7 F)	41 of 100 (Notable)
Narjan Mar	Russia	Record high minimum temperature	14.0 C (57.2 F)	41 of 100 (Notable)
Ulan-Ude	Russia	Record low maximum temperature	8.6 C (47.5 F)	41 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high maximum temperature	30.6 C (87.1 F)	40 of 100 (Notable)
Altastenberg	Germany	Record daily precipitation	27.5 mm (1.1 in)	40 of 100 (Notable)
Ratece-Planica	Slovenia	Record daily precipitation	179.5 mm (7.1 in)	40 of 100 (Notable)
Trondheim - Voll	Norway	Record daily precipitation	29.4 mm (1.2 in)	39 of 100 (Notable)
Glommerstrask	Sweden	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
El Salto (Cfe)	Mexico	Record daily precipitation	115.1 mm (4.5 in)	38 of 100 (Notable)
Nordkoster A	Sweden	Record daily precipitation	48.2 mm (1.9 in)	38 of 100 (Notable)
Sterling	United States	Record daily precipitation	32.3 mm (1.3 in)	38 of 100 (Notable)
Dutch Harbor	United States	Record low maximum temperature	9.4 C (48.9 F)	38 of 100 (Notable)
Rhein Main	Germany	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Pecs Pogany	Hungary	Record high minimum temperature	19.2 C (66.6 F)	37 of 100 (Notable)
Oraatjarnarna_D	Sweden	Record daily precipitation	34.1 mm (1.3 in)	37 of 100 (Notable)
Oujda	Morocco	Record high maximum temperature	37.6 C (99.7 F)	36 of 100 (Notable)
Requetemu	Mexico	Record daily precipitation	183.1 mm (7.2 in)	36 of 100 (Notable)
Bispgarden 1	Sweden	Record daily precipitation	27.0 mm (1.1 in)	36 of 100 (Notable)
Corrales	Mexico	Record daily precipitation	64.8 mm (2.6 in)	35 of 100 (Notable)
Spakenburg	Netherlands	Record daily precipitation	26.3 mm (1.0 in)	35 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	70.6 mm (2.8 in)	35 of 100 (Notable)

Counts by Type and Timescale

914 records

Records set or tied on 4 September 2009 by type: Highest daily maximum 170, Lowest daily maximum 98, Highest daily minimum 197, Lowest daily minimum 87, Heaviest daily rainfall 362.

Records on 4 September 2009 by type
Record type	Records
Highest daily maximum	170
Lowest daily maximum	98
Highest daily minimum	197
Lowest daily minimum	87
Heaviest daily rainfall	362
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 September 2009 by timescale: all-time 6, monthly 42, daily 866.

How Much Records Were Beaten By

744 broken records

Margins by which the 744 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 94.2. Ties are not counted.

Top 20 by Significance

4 September 2009

Top 20 records on 4 September 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 2009	Nattavaara_A, SE	daily rain	32.8 mm (1.3 in)	27.8 mm (1.1 in)	58 years	63 of 100 (Major)
4 September 2009	Lightning Ridge Post Office, AU	monthly rain	83.0 mm (3.3 in)	27.1 mm (1.1 in)	38 years	62 of 100 (Major)
4 September 2009	Leon (Dge), MX	daily rain	59.9 mm (2.4 in)	45.2 mm (1.8 in)	62 years	61 of 100 (Major)
4 September 2009	Kredarica, SI	daily rain	154.4 mm (6.1 in)	93.7 mm (3.7 in)	42 years	57 of 100 (Notable)
4 September 2009	Gigant, RU	daily rain	44.1 mm (1.7 in)	32.7 mm (1.3 in)	32 years	56 of 100 (Notable)
4 September 2009	Barneveld, NL	daily rain	38.0 mm (1.5 in)	21.0 mm (0.8 in)	48 years	55 of 100 (Notable)
4 September 2009	Galeana (Smn), MX	daily rain	39.9 mm (1.6 in)	26.4 mm (1.0 in)	86 years	54 of 100 (Notable)
4 September 2009	Voorthuizen, NL	daily rain	36.1 mm (1.4 in)	21.0 mm (0.8 in)	48 years	53 of 100 (Notable)
4 September 2009	San Rafael, MX	all-time rain	134.9 mm (5.3 in)	25.9 mm (1.0 in)	12 years	52 of 100 (Notable)
4 September 2009	Cimljansk, RU	daily rain	49.7 mm (2.0 in)	37.6 mm (1.5 in)	24 years	52 of 100 (Notable)
4 September 2009	Murjek, SE	monthly rain	49.5 mm (1.9 in)	16.3 mm (0.6 in)	1 year	52 of 100 (Notable)
4 September 2009	San Luis Potosi (Dge), MX	daily rain	42.4 mm (1.7 in)	28.9 mm (1.1 in)	56 years	51 of 100 (Notable)
4 September 2009	Isabela Substn, PR	daily low max	27.8 C (82.0 F)	1.6 C (2.9 F)	104 years	51 of 100 (Notable)
4 September 2009	Puottaure, SE	daily rain	44.7 mm (1.8 in)	22.2 mm (0.9 in)	24 years	51 of 100 (Notable)
4 September 2009	Kirkwall, GB	daily rain	33.5 mm (1.3 in)	22.6 mm (0.9 in)	27 years	51 of 100 (Notable)
4 September 2009	Marion Rsvr, US	daily rain	104.1 mm (4.1 in)	59.1 mm (2.3 in)	42 years	50 of 100 (Notable)
4 September 2009	Burns 5W, US	daily rain	104.1 mm (4.1 in)	93.4 mm (3.7 in)	20 years	49 of 100 (Notable)
4 September 2009	Maquixco, MX	daily rain	51.8 mm (2.0 in)	31.0 mm (1.2 in)	28 years	48 of 100 (Notable)
4 September 2009	Rygge, NO	daily rain	42.3 mm (1.7 in)	21.6 mm (0.9 in)	44 years	48 of 100 (Notable)
4 September 2009	Graz, AT	daily rain	59.9 mm (2.4 in)	12.1 mm (0.5 in)	87 years	47 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

1802 to 2009

Records set or tied on this calendar date in each year from 1802 to 2009. 2009 had 914 records.

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

Records on 09-04 in each year
Year	Records
1802	1
1805	1
1823	1
1833	1
1837	1
1839	1
1845	1
1847	1
1850	1
1854	1
1856	1
1857	1
1858	1
1861	1
1863	1
1864	1
1867	1
1868	1
1869	2
1871	1
1872	4
1874	1
1875	1
1877	1
1880	4
1881	1
1883	2
1885	3
1887	1
1888	2
1889	1
1890	1
1891	5
1894	4
1895	6
1896	1
1897	4
1898	9
1899	4
1900	1
1901	4
1902	4
1903	2
1904	7
1905	18
1906	16
1907	22
1908	9
1909	23
1910	91
1911	25
1912	29
1913	29
1914	19
1915	37
1916	24
1917	40
1918	96
1919	48
1920	105
1921	105
1922	62
1923	325
1924	167
1925	339
1926	256
1927	68
1928	341
1929	371
1930	102
1931	477
1932	429
1933	424
1934	393
1935	514
1936	309
1937	411
1938	236
1939	434
1940	287
1941	528
1942	323
1943	472
1944	341
1945	542
1946	431
1947	618
1948	409
1949	370
1950	642
1951	404
1952	645
1953	869
1954	372
1955	465
1956	586
1957	250
1958	384
1959	316
1960	552
1961	909
1962	733
1963	443
1964	507
1965	611
1966	428
1967	786
1968	546
1969	510
1970	644
1971	717
1972	513
1973	530
1974	2,279
1975	432
1976	582
1977	386
1978	940
1979	461
1980	355
1981	582
1982	617
1983	1,040
1984	1,107
1985	915
1986	663
1987	685
1988	1,259
1989	681
1990	787
1991	708
1992	1,132
1993	859
1994	1,001
1995	1,287
1996	907
1997	1,452
1998	1,564
1999	1,479
2000	1,336
2001	833
2002	767
2003	1,094
2004	898
2005	998
2006	1,268
2007	1,077
2008	1,335
2009	914
2010	1,804
2011	1,310
2012	1,209
2013	630
2014	461
2015	893
2016	597
2017	881
2018	758
2019	616
2020	957
2021	544
2022	1,256
2023	1,290
2024	985
2025	635
2026	1,222

Download the Data

Data for records on 2009-09-04: 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 20	695
20 to 40	38
40 to 60	8
60 to 80	0
80 to 100	3