Weather Records on 10 September 1999

1,068 weather records were set or tied worldwide on 10 September 1999. Highest significance: Haverhill, US.

Key Facts for 10 September 1999

On 10 September 1999, 1,068 weather records were set or tied at long-record stations worldwide.
639 were record highs and 228 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 30 monthly and 1,037 daily.
Haverhill set a daily record precipitation of 96.0 mm (3.8 in) on 10 September 1999.
Across 166 earlier years (1812 to 2026) the same calendar date averaged 425 records.

Record Map

1,068 stations

1,068 station records on 10 September 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 September 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Haverhill	United States	Record daily precipitation	96.0 mm (3.8 in)	73 of 100 (Major)
Lewiston	United States	Record daily precipitation	115.3 mm (4.5 in)	66 of 100 (Major)
Brunswick NAS	United States	Record daily precipitation	79.8 mm (3.1 in)	63 of 100 (Major)
Gardner	United States	Record daily precipitation	83.8 mm (3.3 in)	60 of 100 (Major)
Boston	United States	Record daily precipitation	119.6 mm (4.7 in)	58 of 100 (Notable)
Aparri	Philippines	Record daily precipitation	261.0 mm (10.3 in)	57 of 100 (Notable)
Augusta State AP	United States	Record daily precipitation	83.3 mm (3.3 in)	57 of 100 (Notable)
Portland Jetport	United States	Record daily precipitation	76.2 mm (3.0 in)	55 of 100 (Notable)
Rumford 1 SSE	United States	Record daily precipitation	91.7 mm (3.6 in)	54 of 100 (Notable)
Troicko-Pecherskoe	Russia	Record daily precipitation	27.5 mm (1.1 in)	53 of 100 (Notable)
West Buxton 2 NNW	United States	Record daily precipitation	108.5 mm (4.3 in)	53 of 100 (Notable)
Bedford	United States	Record daily precipitation	137.4 mm (5.4 in)	53 of 100 (Notable)
Reading	United States	Record daily precipitation	103.1 mm (4.1 in)	53 of 100 (Notable)
Science Garden	Philippines	Record daily precipitation	205.0 mm (8.1 in)	52 of 100 (Notable)
Fazenda Paraiso	Brazil	Record daily precipitation	60.0 mm (2.4 in)	51 of 100 (Notable)
Ashburnham	United States	Record daily precipitation	66.8 mm (2.6 in)	51 of 100 (Notable)
Corozal Substn	Puerto Rico [United States]	Record high minimum temperature	25.6 C (78.1 F)	50 of 100 (Notable)
Brocken	Germany	Record high minimum temperature	15.4 C (59.7 F)	49 of 100 (Notable)
Chula Vista	United States	Record low minimum temperature	7.8 C (46.0 F)	49 of 100 (Notable)
Barkhamsted	United States	Record daily precipitation	62.2 mm (2.4 in)	46 of 100 (Notable)
Belchertown	United States	Record daily precipitation	58.9 mm (2.3 in)	46 of 100 (Notable)
Brockton	United States	Record daily precipitation	56.9 mm (2.2 in)	46 of 100 (Notable)
Tulsa Intl AP	United States	Record daily precipitation	78.7 mm (3.1 in)	46 of 100 (Notable)
Concord ASOS	United States	Record daily precipitation	68.3 mm (2.7 in)	46 of 100 (Notable)
Culman	Russia	Record daily precipitation	29.4 mm (1.2 in)	45 of 100 (Notable)
Bingham Wyman Dam	United States	Record daily precipitation	77.5 mm (3.1 in)	45 of 100 (Notable)
Mt Sunapee	United States	Record daily precipitation	56.1 mm (2.2 in)	43 of 100 (Notable)
Campina Verde	Brazil	Record daily precipitation	51.3 mm (2.0 in)	42 of 100 (Notable)
Burlington	United States	Record daily precipitation	58.4 mm (2.3 in)	42 of 100 (Notable)
Newton	United States	Record daily precipitation	42.4 mm (1.7 in)	42 of 100 (Notable)
Aachen	Germany	Record high minimum temperature	17.3 C (63.1 F)	41 of 100 (Notable)
Clausthal-Zellerfeld	Germany	Record high maximum temperature	24.2 C (75.6 F)	41 of 100 (Notable)
Holyoke	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Hartford Brainard Fld	United States	Record daily precipitation	49.8 mm (2.0 in)	41 of 100 (Notable)
Berlin-Dahlem	Germany	Record high maximum temperature	30.1 C (86.2 F)	40 of 100 (Notable)
Arcola	United States	Record daily precipitation	60.7 mm (2.4 in)	40 of 100 (Notable)
E Stroudsburg	United States	Record daily precipitation	69.9 mm (2.8 in)	40 of 100 (Notable)
Red Rock	United States	Record daily precipitation	78.7 mm (3.1 in)	39 of 100 (Notable)
Hartford-Bradley Intl AP	United States	Record daily precipitation	70.6 mm (2.8 in)	39 of 100 (Notable)
Madison	United States	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Mazanovo	Russia	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Bakersville	United States	Record daily precipitation	65.5 mm (2.6 in)	37 of 100 (Notable)
Presque Isle	United States	Record high minimum temperature	19.4 C (66.9 F)	37 of 100 (Notable)
Bridgehampton	United States	Record daily precipitation	86.9 mm (3.4 in)	37 of 100 (Notable)
Millinocket	United States	Record high minimum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Blue Hill Coop	United States	Record high minimum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Wushaoling	China	Record daily precipitation	25.8 mm (1.0 in)	35 of 100 (Notable)
Pte de Chassiron	France	Record high minimum temperature	19.6 C (67.3 F)	35 of 100 (Notable)
Amherst	United States	Record daily precipitation	34.5 mm (1.4 in)	35 of 100 (Notable)
Leech Lake	United States	Record low maximum temperature	12.2 C (54.0 F)	35 of 100 (Notable)
Milford	United States	Record daily precipitation	48.8 mm (1.9 in)	35 of 100 (Notable)
Conshohocken	United States	Record daily precipitation	65.8 mm (2.6 in)	35 of 100 (Notable)
Elgin	United States	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Orono	United States	Record high minimum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Edinburgh: Royal Botanic Garde	United Kingdom	Record high maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Red Lake Indian Agcy	United States	Record low maximum temperature	11.1 C (52.0 F)	33 of 100 (Routine)
Sandy Lake Dam Libby	United States	Record low maximum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Saga	Japan	Record daily precipitation	119.1 mm (4.7 in)	32 of 100 (Routine)
Atemajac de Brizuela	Mexico	Record low minimum temperature	7.8 C (46.0 F)	32 of 100 (Routine)
Coyotepec	Mexico	Record low minimum temperature	5.6 C (42.1 F)	32 of 100 (Routine)

Counts by Type and Timescale

1,068 records

Records set or tied on 10 September 1999 by type: Highest daily maximum 327, Lowest daily maximum 135, Highest daily minimum 312, Lowest daily minimum 93, Heaviest daily rainfall 199, Heaviest daily snowfall 2.

Records on 10 September 1999 by type
Record type	Records
Highest daily maximum	327
Lowest daily maximum	135
Highest daily minimum	312
Lowest daily minimum	93
Heaviest daily rainfall	199
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 10 September 1999 by timescale: all-time 1, monthly 30, daily 1,037.

How Much Records Were Beaten By

877 broken records

Margins by which the 877 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 171.0. Ties are not counted.

Top 20 by Significance

10 September 1999

Top 20 records on 10 September 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 September 1999	Haverhill, US	daily rain	96.0 mm (3.8 in)	80.8 mm (3.2 in)	78 years	73 of 100 (Major)
10 September 1999	Lewiston, US	daily rain	115.3 mm (4.5 in)	48.5 mm (1.9 in)	74 years	66 of 100 (Major)
10 September 1999	Brunswick NAS, US	daily rain	79.8 mm (3.1 in)	64.3 mm (2.5 in)	56 years	63 of 100 (Major)
10 September 1999	Gardner, US	daily rain	83.8 mm (3.3 in)	68.6 mm (2.7 in)	57 years	60 of 100 (Major)
10 September 1999	Boston, US	daily rain	119.6 mm (4.7 in)	104.1 mm (4.1 in)	40 years	58 of 100 (Notable)
10 September 1999	Aparri, PH	daily rain	261.0 mm (10.3 in)	171.0 mm (6.7 in)	42 years	57 of 100 (Notable)
10 September 1999	Augusta State AP, US	daily rain	83.3 mm (3.3 in)	60.9 mm (2.4 in)	40 years	57 of 100 (Notable)
10 September 1999	Portland Jetport, US	daily rain	76.2 mm (3.0 in)	61.5 mm (2.4 in)	32 years	55 of 100 (Notable)
10 September 1999	Rumford 1 SSE, US	daily rain	91.7 mm (3.6 in)	49.0 mm (1.9 in)	32 years	54 of 100 (Notable)
10 September 1999	Troicko-Pecherskoe, RU	daily rain	27.5 mm (1.1 in)	9.9 mm (0.39 in)	73 years	53 of 100 (Notable)
10 September 1999	West Buxton 2 NNW, US	daily rain	108.5 mm (4.3 in)	89.2 mm (3.5 in)	32 years	53 of 100 (Notable)
10 September 1999	Bedford, US	monthly rain	137.4 mm (5.4 in)	42.1 mm (1.7 in)	38 years	53 of 100 (Notable)
10 September 1999	Reading, US	daily rain	103.1 mm (4.1 in)	89.6 mm (3.5 in)	32 years	53 of 100 (Notable)
10 September 1999	Science Garden, PH	daily rain	205.0 mm (8.1 in)	154.0 mm (6.1 in)	32 years	52 of 100 (Notable)
10 September 1999	Fazenda Paraiso, BR	daily rain	60.0 mm (2.4 in)	50.0 mm (2.0 in)	28 years	51 of 100 (Notable)
10 September 1999	Ashburnham, US	daily rain	66.8 mm (2.6 in)	50.8 mm (2.0 in)	32 years	51 of 100 (Notable)
10 September 1999	Corozal Substn, PR	daily high min	25.6 C (78.1 F)	2.8 C (5.0 F)	66 years	50 of 100 (Notable)
10 September 1999	Brocken, DE	daily high min	15.4 C (59.7 F)	3.4 C (6.1 F)	100 years	49 of 100 (Notable)
10 September 1999	Chula Vista, US	daily low min	7.8 C (46.0 F)	4.4 C (7.9 F)	80 years	49 of 100 (Notable)
10 September 1999	Barkhamsted, US	daily rain	62.2 mm (2.4 in)	40.1 mm (1.6 in)	56 years	46 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 1999

Records set or tied on this calendar date in each year from 1812 to 1999. 1999 had 1,068 records.

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

Records on 09-10 in each year
Year	Records
1812	1
1813	1
1814	2
1818	1
1838	2
1841	1
1846	1
1847	1
1848	1
1850	2
1854	3
1857	1
1858	1
1865	5
1868	1
1869	2
1871	1
1874	2
1875	1
1876	2
1878	1
1879	2
1880	3
1881	2
1883	3
1884	4
1885	2
1886	1
1887	1
1888	2
1889	3
1890	1
1891	3
1892	3
1893	2
1894	4
1895	3
1896	1
1897	7
1898	4
1899	10
1901	1
1902	10
1903	13
1904	5
1905	7
1906	23
1907	15
1908	15
1909	25
1910	26
1911	8
1912	62
1913	24
1914	43
1915	53
1916	15
1917	79
1918	33
1919	42
1920	132
1921	207
1922	78
1923	38
1924	335
1925	197
1926	68
1927	262
1928	109
1929	282
1930	161
1931	724
1932	258
1933	333
1934	247
1935	478
1936	336
1937	376
1938	369
1939	386
1940	410
1941	389
1942	271
1943	352
1944	470
1945	334
1946	295
1947	534
1948	432
1949	793
1950	394
1951	344
1952	476
1953	250
1954	271
1955	376
1956	834
1957	332
1958	435
1959	670
1960	376
1961	459
1962	798
1963	384
1964	710
1965	355
1966	330
1967	512
1968	846
1969	635
1970	582
1971	400
1972	477
1973	559
1974	522
1975	528
1976	1,041
1977	391
1978	883
1979	563
1980	716
1981	629
1982	687
1983	1,329
1984	824
1985	1,140
1986	960
1987	574
1988	783
1989	1,098
1990	782
1991	827
1992	745
1993	936
1994	816
1995	643
1996	1,003
1997	829
1998	1,832
1999	1,068
2000	1,088
2001	1,129
2002	1,298
2003	1,149
2004	652
2005	1,173
2006	1,110
2007	866
2008	975
2009	636
2010	1,273
2011	1,235
2012	793
2013	1,198
2014	894
2015	789
2016	1,085
2017	674
2018	1,030
2019	816
2020	2,105
2021	1,311
2022	633
2023	1,114
2024	933
2025	583
2026	832

Download the Data

Data for records on 1999-09-10: 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	838
25 to 50	21
50 to 75	12
75 to 100	3
100 to 125	1
125 to 150	0
150 to 175	2