Weather Records on 9 September 1999

1,013 weather records were set or tied worldwide on 9 September 1999. Highest significance: Laurel 3 W, US.

Key Facts for 9 September 1999

On 9 September 1999, 1,013 weather records were set or tied at long-record stations worldwide.
661 were record highs and 202 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 33 monthly and 979 daily.
Laurel 3 W set a daily record precipitation of 91.2 mm (3.6 in) on 9 September 1999.
Across 162 earlier years (1806 to 2026) the same calendar date averaged 458 records.

Record Map

1,013 stations

1,013 station records on 9 September 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 September 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Laurel 3 W	United States	Record daily precipitation	91.2 mm (3.6 in)	75 of 100 (Major)
Dandong	China	Record daily precipitation	230.7 mm (9.1 in)	64 of 100 (Major)
Objacevo	Russia	Record daily precipitation	55.9 mm (2.2 in)	62 of 100 (Major)
Conceicao Do Rio Verde	Brazil	Record daily precipitation	67.6 mm (2.7 in)	60 of 100 (Major)
Shenyang	China	Record daily precipitation	69.5 mm (2.7 in)	51 of 100 (Notable)
Agartala	India	Record daily precipitation	96.0 mm (3.8 in)	48 of 100 (Notable)
Halmstad	Sweden	Record high maximum temperature	24.8 C (76.6 F)	46 of 100 (Notable)
Eastport	United States	Record high minimum temperature	16.1 C (61.0 F)	46 of 100 (Notable)
Middleboro	United States	Record daily precipitation	38.6 mm (1.5 in)	45 of 100 (Notable)
Crystal Springs Exp STN	United States	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Ringwood	United States	Record daily precipitation	85.9 mm (3.4 in)	43 of 100 (Notable)
Buenavista	Mexico	Record high minimum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Orono	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Tranebjerg	Denmark	Record high maximum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Putbus	Germany	Record high maximum temperature	26.5 C (79.7 F)	41 of 100 (Notable)
Comalapa (Cfe)	Mexico	Record daily precipitation	101.9 mm (4.0 in)	41 of 100 (Notable)
Waverly	United States	Record high minimum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Huimin	China	Record daily precipitation	62.1 mm (2.4 in)	40 of 100 (Notable)
El Pinito	Mexico	Record daily precipitation	54.9 mm (2.2 in)	40 of 100 (Notable)
Newark Ag Farm	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Sobolevo	Russia	Record daily precipitation	45.0 mm (1.8 in)	38 of 100 (Notable)
Madison	United States	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Millinocket	United States	Record high minimum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Amherst	United States	Record high minimum temperature	22.2 C (72.0 F)	38 of 100 (Notable)
Putla de Guerrero (Cfe)	Mexico	Record daily precipitation	107.2 mm (4.2 in)	37 of 100 (Notable)
Gardiner	United States	Record high minimum temperature	19.4 C (66.9 F)	37 of 100 (Notable)
Lawrence	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Byron Bay (Cape Byron Lighthou	Australia	Record daily precipitation	56.2 mm (2.2 in)	36 of 100 (Notable)
Pueblo Nuevo	Mexico	Record daily precipitation	133.1 mm (5.2 in)	36 of 100 (Notable)
Taunton	United States	Record high minimum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Atemajac de Brizuela	Mexico	Record daily precipitation	43.9 mm (1.7 in)	35 of 100 (Notable)
Timiryazevskij	Russia	Record high maximum temperature	28.8 C (83.8 F)	35 of 100 (Notable)
Haleyville	United States	Record daily precipitation	38.6 mm (1.5 in)	35 of 100 (Notable)
Plainfield	United States	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Intl Falls Intl AP	United States	Record low maximum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Newton Rigg	United Kingdom	Record high maximum temperature	22.4 C (72.3 F)	34 of 100 (Routine)
Collinsville 7 SE	United States	Record daily precipitation	59.2 mm (2.3 in)	34 of 100 (Routine)
Greenwood Lake	United States	Record daily precipitation	88.4 mm (3.5 in)	34 of 100 (Routine)
Tezpur	India	Record daily precipitation	57.9 mm (2.3 in)	33 of 100 (Routine)
Oak Ridge	United States	Record daily precipitation	37.8 mm (1.5 in)	33 of 100 (Routine)
Holter Dam	United States	Record low minimum temperature	0.0 C (32.0 F)	33 of 100 (Routine)
Boulder City	United States	Record high minimum temperature	29.4 C (84.9 F)	33 of 100 (Routine)
Eutin	Germany	Record high maximum temperature	28.4 C (83.1 F)	32 of 100 (Routine)
Waren	Germany	Record high minimum temperature	14.9 C (58.8 F)	32 of 100 (Routine)
Atemajac de Brizuela	Mexico	Record low minimum temperature	6.7 C (44.1 F)	32 of 100 (Routine)
Nochistlan	Mexico	Record low minimum temperature	6.7 C (44.1 F)	32 of 100 (Routine)
Meadville	United States	Record daily precipitation	55.4 mm (2.2 in)	32 of 100 (Routine)
Hannibal Wtr Wks	United States	Record low minimum temperature	1.7 C (35.1 F)	32 of 100 (Routine)
Willow Grove NAS	United States	Record daily precipitation	34.5 mm (1.4 in)	32 of 100 (Routine)
Juquia	Brazil	Record daily precipitation	44.5 mm (1.8 in)	31 of 100 (Routine)
Nouakchott	Mauritania	Record low minimum temperature	16.0 C (60.8 F)	31 of 100 (Routine)
Vladivostok	Russia	Record high minimum temperature	19.9 C (67.8 F)	31 of 100 (Routine)
Windom	United States	Record low maximum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Chuuk WSO AP	Federated States of Micronesia	Record low minimum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Schwerin	Germany	Record high minimum temperature	15.4 C (59.7 F)	30 of 100 (Routine)
Rostock-Warnemunde	Germany	Record high maximum temperature	28.5 C (83.3 F)	30 of 100 (Routine)
Neumunster	Germany	Record high maximum temperature	28.4 C (83.1 F)	30 of 100 (Routine)
Schierke	Germany	Record high maximum temperature	25.7 C (78.3 F)	30 of 100 (Routine)
San Jose del Cabo	Mexico	Record low maximum temperature	26.7 C (80.1 F)	30 of 100 (Routine)
Rudnaja Pristan	Russia	Record high maximum temperature	30.3 C (86.5 F)	30 of 100 (Routine)

Counts by Type and Timescale

1,013 records

Records set or tied on 9 September 1999 by type: Highest daily maximum 369, Lowest daily maximum 133, Highest daily minimum 292, Lowest daily minimum 69, Heaviest daily rainfall 150.

Records on 9 September 1999 by type
Record type	Records
Highest daily maximum	369
Lowest daily maximum	133
Highest daily minimum	292
Lowest daily minimum	69
Heaviest daily rainfall	150
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 September 1999 by timescale: all-time 1, monthly 33, daily 979.

How Much Records Were Beaten By

809 broken records

Margins by which the 809 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 91.8. Ties are not counted.

Top 20 by Significance

9 September 1999

Top 20 records on 9 September 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 September 1999	Laurel 3 W, US	daily rain	91.2 mm (3.6 in)	61.7 mm (2.4 in)	96 years	75 of 100 (Major)
9 September 1999	Dandong, CN	monthly rain	230.7 mm (9.1 in)	91.8 mm (3.6 in)	35 years	64 of 100 (Major)
9 September 1999	Objacevo, RU	monthly rain	55.9 mm (2.2 in)	15.6 mm (0.6 in)	44 years	62 of 100 (Major)
9 September 1999	Conceicao Do Rio Verde, BR	daily rain	67.6 mm (2.7 in)	47.4 mm (1.9 in)	57 years	60 of 100 (Major)
9 September 1999	Shenyang, CN	daily rain	69.5 mm (2.7 in)	61.7 mm (2.4 in)	24 years	51 of 100 (Notable)
9 September 1999	Agartala, IN	daily rain	96.0 mm (3.8 in)	30.0 mm (1.2 in)	74 years	48 of 100 (Notable)
9 September 1999	Halmstad, SE	daily high max	24.8 C (76.6 F)	1.8 C (3.2 F)	100 years	46 of 100 (Notable)
9 September 1999	Eastport, US	daily high min	16.1 C (61.0 F)	2.2 C (4.0 F)	98 years	46 of 100 (Notable)
9 September 1999	Middleboro, US	daily rain	38.6 mm (1.5 in)	9.6 mm (0.38 in)	96 years	45 of 100 (Notable)
9 September 1999	Crystal Springs Exp STN, US	daily rain	38.1 mm (1.5 in)	7.6 mm (0.30 in)	104 years	44 of 100 (Notable)
9 September 1999	Ringwood, US	daily rain	85.9 mm (3.4 in)	53.6 mm (2.1 in)	17 years	43 of 100 (Notable)
9 September 1999	Buenavista, MX	monthly high min	22.2 C (72.0 F)	0.5 C (0.9 F)	78 years	42 of 100 (Notable)
9 September 1999	Orono, US	daily high min	20.6 C (69.1 F)	3.4 C (6.1 F)	84 years	42 of 100 (Notable)
9 September 1999	Tranebjerg, DK	daily high max	25.0 C (77.0 F)	0.5 C (0.9 F)	100 years	41 of 100 (Notable)
9 September 1999	Putbus, DE	daily high max	26.5 C (79.7 F)	0.5 C (0.9 F)	141 years	41 of 100 (Notable)
9 September 1999	Comalapa (Cfe), MX	daily rain	101.9 mm (4.0 in)	55.7 mm (2.2 in)	29 years	41 of 100 (Notable)
9 September 1999	Waverly, US	daily high min	17.8 C (64.0 F)	0.6 C (1.1 F)	104 years	41 of 100 (Notable)
9 September 1999	Huimin, CN	daily rain	62.1 mm (2.4 in)	35.4 mm (1.4 in)	13 years	40 of 100 (Notable)
9 September 1999	El Pinito, MX	daily rain	54.9 mm (2.2 in)	25.4 mm (1.0 in)	33 years	40 of 100 (Notable)
9 September 1999	Newark Ag Farm, US	daily high min	21.1 C (70.0 F)	0.5 C (0.9 F)	98 years	40 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

1806 to 1999

Records set or tied on this calendar date in each year from 1806 to 1999. 1999 had 1,013 records.

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

Records on 09-09 in each year
Year	Records
1806	1
1812	1
1813	1
1814	2
1834	1
1836	1
1845	1
1847	1
1848	1
1849	2
1850	1
1854	1
1864	2
1865	3
1866	3
1867	1
1869	1
1871	1
1873	1
1878	1
1879	1
1880	2
1883	3
1884	4
1886	1
1888	4
1889	1
1890	1
1891	1
1892	4
1893	4
1894	3
1895	7
1897	3
1898	5
1899	6
1900	1
1901	4
1902	5
1903	14
1904	9
1905	8
1906	24
1907	9
1908	5
1909	9
1910	17
1911	27
1912	48
1913	12
1914	69
1915	48
1916	16
1917	44
1918	40
1919	74
1920	145
1921	92
1922	115
1923	58
1924	232
1925	248
1926	168
1927	246
1928	108
1929	362
1930	211
1931	558
1932	302
1933	433
1934	256
1935	461
1936	297
1937	242
1938	416
1939	429
1940	294
1941	763
1942	357
1943	596
1944	719
1945	355
1946	366
1947	465
1948	307
1949	1,407
1950	426
1951	338
1952	511
1953	344
1954	283
1955	608
1956	742
1957	390
1958	419
1959	736
1960	492
1961	383
1962	847
1963	400
1964	488
1965	326
1966	366
1967	367
1968	440
1969	603
1970	584
1971	498
1972	464
1973	517
1974	689
1975	555
1976	773
1977	410
1978	702
1979	878
1980	829
1981	1,011
1982	814
1983	958
1984	1,304
1985	1,269
1986	1,026
1987	676
1988	836
1989	983
1990	762
1991	882
1992	620
1993	886
1994	892
1995	937
1996	809
1997	837
1998	1,667
1999	1,013
2000	811
2001	1,647
2002	1,355
2003	786
2004	1,603
2005	1,068
2006	917
2007	948
2008	1,161
2009	792
2010	1,049
2011	1,328
2012	681
2013	974
2014	590
2015	806
2016	1,210
2017	661
2018	876
2019	953
2020	2,579
2021	1,458
2022	1,094
2023	1,222
2024	1,146
2025	520
2026	815

Download the Data

Data for records on 1999-09-09: 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	779
20 to 40	21
40 to 60	6
60 to 80	2
80 to 100	1