Weather Records on 4 September 1999

1,479 weather records were set or tied worldwide on 4 September 1999. Highest significance: Bridgewater, US.

Key Facts for 4 September 1999

On 4 September 1999, 1,479 weather records were set or tied at long-record stations worldwide.
724 were record highs and 318 were record lows, counting maximum and minimum temperature.
By timescale, 10 were all-time records, 97 monthly and 1,372 daily.
Bridgewater set an all-time record daily precipitation of 148.6 mm (5.9 in) on 4 September 1999.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 445 records.

Record Map

1,479 stations

1,479 station records on 4 September 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bridgewater	United States	Record daily precipitation	148.6 mm (5.9 in)	75 of 100 (Major)
Bucuresti Filaret	Romania	Record daily precipitation	93.3 mm (3.7 in)	72 of 100 (Major)
Victor Harbor (Rivington Grang	Australia	Record daily precipitation	36.2 mm (1.4 in)	69 of 100 (Major)
Worland	United States	Record daily precipitation	29.0 mm (1.1 in)	69 of 100 (Major)
Ft Morgan	United States	Record daily precipitation	38.1 mm (1.5 in)	67 of 100 (Major)
Lawrenceville 3 E	United States	Record daily precipitation	171.5 mm (6.8 in)	65 of 100 (Major)
Adelaide (Morphett Vale)	Australia	Record daily precipitation	25.4 mm (1.0 in)	63 of 100 (Major)
Drobeta Turnu Severin	Romania	Record daily precipitation	50.8 mm (2.0 in)	63 of 100 (Major)
Mitchell 2 N	United States	Record daily precipitation	76.2 mm (3.0 in)	62 of 100 (Major)
Conde	United States	Record daily precipitation	79.2 mm (3.1 in)	57 of 100 (Notable)
Milbank 4 NW	United States	Record daily precipitation	50.8 mm (2.0 in)	57 of 100 (Notable)
Narjan Mar	Russia	Record daily precipitation	35.0 mm (1.4 in)	56 of 100 (Notable)
Brookville	United States	Record daily precipitation	88.9 mm (3.5 in)	56 of 100 (Notable)
Belair (State Flora Nursery)	Australia	Record daily precipitation	29.4 mm (1.2 in)	55 of 100 (Notable)
Niobrara	United States	Record daily precipitation	63.0 mm (2.5 in)	54 of 100 (Notable)
Brookings 2 NE	United States	Record daily precipitation	49.5 mm (1.9 in)	54 of 100 (Notable)
Shoshoni	United States	Record daily precipitation	29.2 mm (1.1 in)	54 of 100 (Notable)
Jackman	United States	Record high maximum temperature	32.8 C (91.0 F)	53 of 100 (Notable)
Menno	United States	Record daily precipitation	101.9 mm (4.0 in)	53 of 100 (Notable)
Hachijojima	Japan	Record daily precipitation	217.9 mm (8.6 in)	52 of 100 (Notable)
Temascales	Mexico	Record daily precipitation	63.8 mm (2.5 in)	52 of 100 (Notable)
Salem 5 SW	United States	Record daily precipitation	121.2 mm (4.8 in)	52 of 100 (Notable)
Marquette	United States	Record high minimum temperature	23.9 C (75.0 F)	52 of 100 (Notable)
Bones I Bardu	Norway	Record daily precipitation	37.0 mm (1.5 in)	51 of 100 (Notable)
Suffolk Lake Kilby	United States	Record daily precipitation	124.2 mm (4.9 in)	51 of 100 (Notable)
Riverton	United States	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
El Porvenir	Mexico	Record daily precipitation	184.9 mm (7.3 in)	50 of 100 (Notable)
Porsa II	Norway	Record daily precipitation	28.0 mm (1.1 in)	50 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	29.8 mm (1.2 in)	49 of 100 (Notable)
Yankalilla (Inman Valley)	Australia	Record daily precipitation	34.0 mm (1.3 in)	48 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record high minimum temperature	16.2 C (61.2 F)	48 of 100 (Notable)
Tepames (Dge)	Mexico	Record daily precipitation	300.0 mm (11.8 in)	48 of 100 (Notable)
San Jeronimo	Mexico	Record daily precipitation	157.5 mm (6.2 in)	48 of 100 (Notable)
Britton	United States	Record daily precipitation	53.3 mm (2.1 in)	48 of 100 (Notable)
Wentworth 2.5 WNW	United States	Record daily precipitation	53.6 mm (2.1 in)	48 of 100 (Notable)
Winner	United States	Record daily precipitation	33.0 mm (1.3 in)	48 of 100 (Notable)
Sheridan Fld STN	United States	Record daily precipitation	35.1 mm (1.4 in)	48 of 100 (Notable)
Hahndorf	Australia	Record daily precipitation	36.8 mm (1.4 in)	47 of 100 (Notable)
Melbourne Regional Office	Australia	Record high minimum temperature	17.9 C (64.2 F)	47 of 100 (Notable)
Kalacinsk	Russia	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Fargo Hector Intl AP	United States	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Victor Harbor Comparison	Australia	Record daily precipitation	26.8 mm (1.1 in)	46 of 100 (Notable)
Wadena 3 S	United States	Record daily precipitation	44.7 mm (1.8 in)	46 of 100 (Notable)
Tyndall	United States	Record daily precipitation	89.2 mm (3.5 in)	46 of 100 (Notable)
Jasper	United States	Record daily precipitation	96.5 mm (3.8 in)	46 of 100 (Notable)
Lynch	United States	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
Port Townsend	United States	Record low minimum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Thermopolis 21WNW	United States	Record daily precipitation	36.6 mm (1.4 in)	45 of 100 (Notable)
Tlaxcala de Xicontecatl (Dge)	Mexico	Record daily precipitation	89.7 mm (3.5 in)	44 of 100 (Notable)
Lerma	Mexico	Record daily precipitation	56.9 mm (2.2 in)	44 of 100 (Notable)
Myponga Reservoir	Australia	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
San Pedro Potla	Mexico	Record daily precipitation	46.0 mm (1.8 in)	43 of 100 (Notable)
Tg Jiu	Romania	Record daily precipitation	36.8 mm (1.4 in)	43 of 100 (Notable)
Craiova	Romania	Record daily precipitation	77.2 mm (3.0 in)	43 of 100 (Notable)
Black Mtn	United States	Record daily precipitation	31.8 mm (1.3 in)	43 of 100 (Notable)
Calarasi	Romania	Record daily precipitation	61.0 mm (2.4 in)	42 of 100 (Notable)
Glenwood 2WNW	United States	Record daily precipitation	54.4 mm (2.1 in)	42 of 100 (Notable)
Wauneta	United States	Record daily precipitation	28.7 mm (1.1 in)	42 of 100 (Notable)
Arlington 1 W	United States	Record daily precipitation	83.3 mm (3.3 in)	42 of 100 (Notable)
Mount Compass	Australia	Record daily precipitation	41.2 mm (1.6 in)	41 of 100 (Notable)

Counts by Type and Timescale

1,479 records

Records set or tied on 4 September 1999 by type: Highest daily maximum 393, Lowest daily maximum 189, Highest daily minimum 331, Lowest daily minimum 129, Heaviest daily rainfall 435, Heaviest daily snowfall 2.

Records on 4 September 1999 by type
Record type	Records
Highest daily maximum	393
Lowest daily maximum	189
Highest daily minimum	331
Lowest daily minimum	129
Heaviest daily rainfall	435
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 4 September 1999 by timescale: all-time 10, monthly 97, daily 1,372.

How Much Records Were Beaten By

1,169 broken records

Margins by which the 1,169 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 384.0. Ties are not counted.

Top 20 by Significance

4 September 1999

Top 20 records on 4 September 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 1999	Bridgewater, US	all-time rain	148.6 mm (5.9 in)	40.4 mm (1.6 in)	51 years	75 of 100 (Major)
4 September 1999	Bucuresti Filaret, RO	monthly rain	93.3 mm (3.7 in)	36.0 mm (1.4 in)	41 years	72 of 100 (Major)
4 September 1999	Victor Harbor (Rivington Grang, AU	daily rain	36.2 mm (1.4 in)	21.0 mm (0.8 in)	88 years	69 of 100 (Major)
4 September 1999	Worland, US	daily rain	29.0 mm (1.1 in)	20.9 mm (0.8 in)	69 years	69 of 100 (Major)
4 September 1999	Ft Morgan, US	daily rain	38.1 mm (1.5 in)	28.4 mm (1.1 in)	89 years	67 of 100 (Major)
4 September 1999	Lawrenceville 3 E, US	monthly rain	171.5 mm (6.8 in)	68.4 mm (2.7 in)	24 years	65 of 100 (Major)
4 September 1999	Adelaide (Morphett Vale), AU	daily rain	25.4 mm (1.0 in)	15.2 mm (0.6 in)	88 years	63 of 100 (Major)
4 September 1999	Drobeta Turnu Severin, RO	daily rain	50.8 mm (2.0 in)	33.8 mm (1.3 in)	54 years	63 of 100 (Major)
4 September 1999	Mitchell 2 N, US	daily rain	76.2 mm (3.0 in)	43.2 mm (1.7 in)	49 years	62 of 100 (Major)
4 September 1999	Conde, US	monthly rain	79.2 mm (3.1 in)	40.8 mm (1.6 in)	10 years	57 of 100 (Notable)
4 September 1999	Milbank 4 NW, US	daily rain	50.8 mm (2.0 in)	26.7 mm (1.1 in)	72 years	57 of 100 (Notable)
4 September 1999	Narjan Mar, RU	daily rain	35.0 mm (1.4 in)	14.2 mm (0.6 in)	52 years	56 of 100 (Notable)
4 September 1999	Brookville, US	daily rain	88.9 mm (3.5 in)	53.8 mm (2.1 in)	48 years	56 of 100 (Notable)
4 September 1999	Belair (State Flora Nursery), AU	daily rain	29.4 mm (1.2 in)	11.1 mm (0.4 in)	103 years	55 of 100 (Notable)
4 September 1999	Niobrara, US	daily rain	63.0 mm (2.5 in)	33.8 mm (1.3 in)	49 years	54 of 100 (Notable)
4 September 1999	Brookings 2 NE, US	daily rain	49.5 mm (1.9 in)	25.1 mm (1.0 in)	69 years	54 of 100 (Notable)
4 September 1999	Shoshoni, US	daily rain	29.2 mm (1.1 in)	22.8 mm (0.9 in)	28 years	54 of 100 (Notable)
4 September 1999	Jackman, US	monthly high max	32.8 C (91.0 F)	1.7 C (3.1 F)	101 years	53 of 100 (Notable)
4 September 1999	Menno, US	monthly rain	101.9 mm (4.0 in)	28.7 mm (1.1 in)	30 years	53 of 100 (Notable)
4 September 1999	Hachijojima, JP	daily rain	217.9 mm (8.6 in)	162.9 mm (6.4 in)	28 years	52 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 1999

Records set or tied on this calendar date in each year from 1802 to 1999. 1999 had 1,479 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 1999-09-04: 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 50	1,155
50 to 100	10
100 to 150	1
150 to 200	2
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1