Weather Records on 6 September 1999

1,048 weather records were set or tied worldwide on 6 September 1999. Highest significance: Mansfield (Post Office), AU.

Key Facts for 6 September 1999

On 6 September 1999, 1,048 weather records were set or tied at long-record stations worldwide.
654 were record highs and 182 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 66 monthly and 975 daily.
Mansfield (Post Office) set a daily record precipitation of 35.6 mm (1.4 in) on 6 September 1999.
Across 164 earlier years (1794 to 2026) the same calendar date averaged 447 records.

Record Map

1,048 stations

1,048 station records on 6 September 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 6 September 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mansfield (Post Office)	Australia	Record daily precipitation	35.6 mm (1.4 in)	68 of 100 (Major)
La Salada	Mexico	Record daily precipitation	319.8 mm (12.6 in)	66 of 100 (Major)
Armagh	United Kingdom	Record daily precipitation	38.7 mm (1.5 in)	59 of 100 (Notable)
Magiscatzin (Dge)	Mexico	Record daily precipitation	170.4 mm (6.7 in)	55 of 100 (Notable)
Tomatlan	Mexico	Record daily precipitation	140.0 mm (5.5 in)	53 of 100 (Notable)
Rio Frio	Mexico	Record daily precipitation	298.5 mm (11.8 in)	53 of 100 (Notable)
Moorestown 4 E	United States	Record high minimum temperature	23.9 C (75.0 F)	51 of 100 (Notable)
Ahualulco	Mexico	Record daily precipitation	186.9 mm (7.4 in)	50 of 100 (Notable)
Chamal Nuevo	Mexico	Record daily precipitation	180.6 mm (7.1 in)	50 of 100 (Notable)
Greenwood	United States	Record daily precipitation	73.7 mm (2.9 in)	50 of 100 (Notable)
Cajon de Pea	Mexico	Record daily precipitation	157.0 mm (6.2 in)	49 of 100 (Notable)
Colonia Manuel A Camacho	Mexico	Record daily precipitation	50.8 mm (2.0 in)	47 of 100 (Notable)
Oosterhout	Netherlands	Record daily precipitation	95.5 mm (3.8 in)	47 of 100 (Notable)
Hohenpeissenberg	Germany	Record daily precipitation	38.2 mm (1.5 in)	46 of 100 (Notable)
El Tuito	Mexico	Record daily precipitation	165.9 mm (6.5 in)	46 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	34.4 C (93.9 F)	46 of 100 (Notable)
Chapel Hill 2 W	United States	Record daily precipitation	195.1 mm (7.7 in)	46 of 100 (Notable)
Ahome	Mexico	Record daily precipitation	149.9 mm (5.9 in)	45 of 100 (Notable)
Jaina	Mexico	Record daily precipitation	186.4 mm (7.3 in)	45 of 100 (Notable)
Bellavista	Mexico	Record daily precipitation	251.0 mm (9.9 in)	44 of 100 (Notable)
Santa Paula	United States	Record low minimum temperature	5.6 C (42.1 F)	43 of 100 (Notable)
Jackman	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Milford 2 SE	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
New Bedford Coop	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Pitea	Sweden	Record high maximum temperature	22.6 C (72.7 F)	41 of 100 (Notable)
Cordele	United States	Record high maximum temperature	37.8 C (100.0 F)	41 of 100 (Notable)
El Bramador	Mexico	Record daily precipitation	169.9 mm (6.7 in)	40 of 100 (Notable)
Badiraguato (Dge)	Mexico	Record daily precipitation	98.3 mm (3.9 in)	40 of 100 (Notable)
Rochester	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Ripley	United States	Record high minimum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Royal Palm Rs	United States	Record daily precipitation	82.6 mm (3.3 in)	39 of 100 (Notable)
La Huerta	Mexico	Record daily precipitation	95.0 mm (3.7 in)	38 of 100 (Notable)
Borzja	Russia	Record daily precipitation	60.2 mm (2.4 in)	38 of 100 (Notable)
Douglas	United States	Record high maximum temperature	37.8 C (100.0 F)	38 of 100 (Notable)
Flemington 5 NNW	United States	Record high minimum temperature	22.2 C (72.0 F)	38 of 100 (Notable)
El Manantial	Mexico	Record daily precipitation	50.3 mm (2.0 in)	37 of 100 (Notable)
Cihuatlan (Dge)	Mexico	Record low maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
El Chiflon	Mexico	Record daily precipitation	100.8 mm (4.0 in)	37 of 100 (Notable)
La Servilleta	Mexico	Record daily precipitation	288.0 mm (11.3 in)	37 of 100 (Notable)
Gallivare_A	Sweden	Record high maximum temperature	22.3 C (72.1 F)	37 of 100 (Notable)
Malvern	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Fruita	United States	Record low minimum temperature	2.8 C (37.0 F)	37 of 100 (Notable)
Grand Coteau	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Salisbury	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Tecomates	Mexico	Record daily precipitation	125.2 mm (4.9 in)	36 of 100 (Notable)
San Jose del Verde	Mexico	Record daily precipitation	95.0 mm (3.7 in)	36 of 100 (Notable)
Ugut	Russia	Record daily precipitation	64.4 mm (2.5 in)	36 of 100 (Notable)
Ashburnham	United States	Record daily precipitation	40.6 mm (1.6 in)	36 of 100 (Notable)
Fairmont	United States	Record low minimum temperature	3.9 C (39.0 F)	36 of 100 (Notable)
Huehuetoca	Mexico	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
Timiryazevskij	Russia	Record high maximum temperature	29.8 C (85.6 F)	35 of 100 (Notable)
Chula Vista	United States	Record low minimum temperature	7.2 C (45.0 F)	35 of 100 (Notable)
Old Forge	United States	Record high minimum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Lawrenceville 3 E	United States	Record daily precipitation	85.1 mm (3.4 in)	35 of 100 (Notable)
Nancy-Ochey	France	Record daily precipitation	36.6 mm (1.4 in)	34 of 100 (Routine)
Actopan	Mexico	Record daily precipitation	43.9 mm (1.7 in)	34 of 100 (Routine)
Autlan	Mexico	Record daily precipitation	129.8 mm (5.1 in)	34 of 100 (Routine)
Ciudad Guzman (Obs)	Mexico	Record low maximum temperature	19.4 C (66.9 F)	34 of 100 (Routine)
Mascota (Smn)	Mexico	Record daily precipitation	52.8 mm (2.1 in)	34 of 100 (Routine)
Oxnard	United States	Record low maximum temperature	18.3 C (64.9 F)	34 of 100 (Routine)

Counts by Type and Timescale

1,048 records

Records set or tied on 6 September 1999 by type: Highest daily maximum 296, Lowest daily maximum 112, Highest daily minimum 358, Lowest daily minimum 70, Heaviest daily rainfall 212.

Records on 6 September 1999 by type
Record type	Records
Highest daily maximum	296
Lowest daily maximum	112
Highest daily minimum	358
Lowest daily minimum	70
Heaviest daily rainfall	212
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 6 September 1999 by timescale: all-time 7, monthly 66, daily 975.

How Much Records Were Beaten By

755 broken records

Margins by which the 755 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 130.3. Ties are not counted.

Top 20 by Significance

6 September 1999

Top 20 records on 6 September 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 September 1999	Mansfield (Post Office), AU	daily rain	35.6 mm (1.4 in)	22.6 mm (0.9 in)	86 years	68 of 100 (Major)
6 September 1999	La Salada, MX	all-time rain	319.8 mm (12.6 in)	68.3 mm (2.7 in)	29 years	66 of 100 (Major)
6 September 1999	Armagh, GB	daily rain	38.7 mm (1.5 in)	10.0 mm (0.4 in)	114 years	59 of 100 (Notable)
6 September 1999	Magiscatzin (Dge), MX	daily rain	170.4 mm (6.7 in)	97.2 mm (3.8 in)	38 years	55 of 100 (Notable)
6 September 1999	Tomatlan, MX	daily rain	140.0 mm (5.5 in)	90.2 mm (3.6 in)	24 years	53 of 100 (Notable)
6 September 1999	Rio Frio, MX	all-time rain	298.5 mm (11.8 in)	66.6 mm (2.6 in)	2 years	53 of 100 (Notable)
6 September 1999	Moorestown 4 E, US	monthly high min	23.9 C (75.0 F)	0.6 C (1.1 F)	101 years	51 of 100 (Notable)
6 September 1999	Ahualulco, MX	daily rain	186.9 mm (7.4 in)	130.3 mm (5.1 in)	25 years	50 of 100 (Notable)
6 September 1999	Chamal Nuevo, MX	daily rain	180.6 mm (7.1 in)	109.2 mm (4.3 in)	25 years	50 of 100 (Notable)
6 September 1999	Greenwood, US	daily rain	73.7 mm (2.9 in)	44.2 mm (1.7 in)	56 years	50 of 100 (Notable)
6 September 1999	Cajon de Pea, MX	daily rain	157.0 mm (6.2 in)	104.2 mm (4.1 in)	17 years	49 of 100 (Notable)
6 September 1999	Colonia Manuel A Camacho, MX	daily rain	50.8 mm (2.0 in)	39.1 mm (1.5 in)	14 years	47 of 100 (Notable)
6 September 1999	Oosterhout, NL	all-time rain	95.5 mm (3.8 in)	12.9 mm (0.5 in)	10 years	47 of 100 (Notable)
6 September 1999	Hohenpeissenberg, DE	daily rain	38.2 mm (1.5 in)	6.0 mm (0.24 in)	101 years	46 of 100 (Notable)
6 September 1999	El Tuito, MX	daily rain	165.9 mm (6.5 in)	72.4 mm (2.9 in)	36 years	46 of 100 (Notable)
6 September 1999	Charlevoix, US	daily high max	34.4 C (93.9 F)	3.8 C (6.8 F)	97 years	46 of 100 (Notable)
6 September 1999	Chapel Hill 2 W, US	all-time rain	195.1 mm (7.7 in)	27.5 mm (1.1 in)	2 years	46 of 100 (Notable)
6 September 1999	Ahome, MX	daily rain	149.9 mm (5.9 in)	112.1 mm (4.4 in)	8 years	45 of 100 (Notable)
6 September 1999	Jaina, MX	daily rain	186.4 mm (7.3 in)	107.9 mm (4.2 in)	0 years	45 of 100 (Notable)
6 September 1999	Bellavista, MX	all-time rain	251.0 mm (9.9 in)	34.6 mm (1.4 in)	23 years	44 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

1794 to 1999

Records set or tied on this calendar date in each year from 1794 to 1999. 1999 had 1,048 records.

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

Records on 09-06 in each year
Year	Records
1794	1
1802	1
1803	1
1812	1
1814	2
1833	1
1834	1
1841	1
1853	1
1854	1
1861	1
1865	2
1866	2
1867	1
1868	1
1869	2
1871	2
1872	2
1873	2
1876	1
1877	1
1880	1
1881	3
1883	2
1884	1
1885	1
1887	2
1888	1
1890	3
1891	1
1892	4
1893	2
1894	4
1895	4
1896	2
1897	4
1898	5
1899	5
1900	5
1901	2
1902	5
1903	5
1904	6
1905	14
1906	8
1907	14
1908	36
1909	13
1910	28
1911	20
1912	55
1913	21
1914	23
1915	14
1916	16
1917	23
1918	62
1919	106
1920	172
1921	67
1922	114
1923	153
1924	335
1925	290
1926	123
1927	137
1928	252
1929	359
1930	101
1931	324
1932	275
1933	368
1934	462
1935	341
1936	338
1937	237
1938	322
1939	447
1940	170
1941	276
1942	284
1943	831
1944	392
1945	537
1946	426
1947	895
1948	379
1949	525
1950	699
1951	263
1952	350
1953	396
1954	567
1955	493
1956	735
1957	311
1958	489
1959	405
1960	382
1961	317
1962	772
1963	419
1964	393
1965	722
1966	296
1967	878
1968	512
1969	737
1970	910
1971	436
1972	567
1973	866
1974	897
1975	426
1976	915
1977	467
1978	1,273
1979	892
1980	458
1981	542
1982	744
1983	1,965
1984	1,354
1985	1,371
1986	751
1987	735
1988	1,547
1989	544
1990	805
1991	757
1992	1,084
1993	856
1994	622
1995	1,220
1996	934
1997	1,389
1998	1,385
1999	1,048
2000	1,500
2001	631
2002	867
2003	718
2004	956
2005	601
2006	1,104
2007	1,246
2008	1,430
2009	735
2010	1,259
2011	1,684
2012	803
2013	886
2014	588
2015	692
2016	605
2017	838
2018	714
2019	797
2020	1,349
2021	407
2022	1,782
2023	905
2024	1,161
2025	894
2026	846

Download the Data

Data for records on 1999-09-06: 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	708
20 to 40	26
40 to 60	10
60 to 80	4
80 to 100	2
100 to 120	4
120 to 140	1