Weather Records on 14 September 1999

854 weather records were set or tied worldwide on 14 September 1999. Highest significance: Sernovodsk, RU.

Key Facts for 14 September 1999

On 14 September 1999, 854 weather records were set or tied at long-record stations worldwide.
506 were record highs and 266 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 839 daily.
Sernovodsk set a daily record precipitation of 41.4 mm (1.6 in) on 14 September 1999.
Across 159 earlier years (1814 to 2026) the same calendar date averaged 438 records.

Record Map

854 stations

854 station records on 14 September 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 14 September 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sernovodsk	Russia	Record daily precipitation	41.4 mm (1.6 in)	60 of 100 (Major)
Washington Wwtp 4W	United States	Record daily precipitation	161.5 mm (6.4 in)	52 of 100 (Notable)
Flagstaff AP	United States	Record daily precipitation	38.1 mm (1.5 in)	51 of 100 (Notable)
Walnut Creek	United States	Record daily precipitation	50.3 mm (2.0 in)	47 of 100 (Notable)
Wattisham	United Kingdom	Record daily precipitation	49.6 mm (2.0 in)	45 of 100 (Notable)
Prescott Love Fld	United States	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)
Uccle	Belgium	Record high minimum temperature	16.9 C (62.4 F)	41 of 100 (Notable)
Siwa	Egypt	Record high minimum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
El Zapote	Mexico	Record high minimum temperature	28.3 C (82.9 F)	40 of 100 (Notable)
Araluen	Australia	Record daily precipitation	43.2 mm (1.7 in)	39 of 100 (Notable)
Brocken	Germany	Record high maximum temperature	23.8 C (74.8 F)	38 of 100 (Notable)
Richland	United States	Record high minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Nurnberg	Germany	Record high maximum temperature	29.8 C (85.6 F)	37 of 100 (Notable)
Brocken	Germany	Record high minimum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
De Bilt	Netherlands	Record high minimum temperature	17.0 C (62.6 F)	37 of 100 (Notable)
Whiteriver 1 SW	United States	Record high minimum temperature	20.0 C (68.0 F)	37 of 100 (Notable)
Altastenberg	Germany	Record high minimum temperature	16.6 C (61.9 F)	36 of 100 (Notable)
Francisco Rueda	Mexico	Record daily precipitation	161.8 mm (6.4 in)	36 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record high maximum temperature	35.6 C (96.1 F)	36 of 100 (Notable)
Kleve	Germany	Record high minimum temperature	17.5 C (63.5 F)	35 of 100 (Notable)
Maastricht	Netherlands	Record high minimum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Skovorodino	Russia	Record low maximum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Black Rock	United States	Record high minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Girua	Brazil	Record daily precipitation	86.5 mm (3.4 in)	33 of 100 (Routine)
Cardenas	Mexico	Record daily precipitation	122.4 mm (4.8 in)	32 of 100 (Routine)
Port Lincoln	Australia	Record high maximum temperature	29.6 C (85.3 F)	31 of 100 (Routine)
Juana Diaz Camp	Puerto Rico [United States]	Record daily precipitation	45.5 mm (1.8 in)	31 of 100 (Routine)
Dusseldorf	Germany	Record high maximum temperature	28.9 C (84.0 F)	30 of 100 (Routine)
Belle Glade	United States	Record high minimum temperature	23.9 C (75.0 F)	30 of 100 (Routine)
Walpole	Australia	Record daily precipitation	43.0 mm (1.7 in)	29 of 100 (Routine)
Siwa	Egypt	Record high maximum temperature	44.0 C (111.2 F)	29 of 100 (Routine)
Weissenfels	Germany	Record high maximum temperature	30.4 C (86.7 F)	29 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record high maximum temperature	26.5 C (79.7 F)	29 of 100 (Routine)
Choshi	Japan	Record high maximum temperature	32.1 C (89.8 F)	29 of 100 (Routine)
Hana AP 355	United States	Record low maximum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Altastenberg	Germany	Record high maximum temperature	25.4 C (77.7 F)	28 of 100 (Routine)
Bad Salzuflen	Germany	Record high maximum temperature	30.3 C (86.5 F)	28 of 100 (Routine)
Schierke	Germany	Record high maximum temperature	27.8 C (82.0 F)	28 of 100 (Routine)
Bernburg/Saale (Nord)	Germany	Record high maximum temperature	29.4 C (84.9 F)	28 of 100 (Routine)
Lichtentanne	Germany	Record high maximum temperature	28.7 C (83.7 F)	28 of 100 (Routine)
Agedabia	Libya	Record high minimum temperature	23.8 C (74.8 F)	28 of 100 (Routine)
La Tinaja	Mexico	Record high maximum temperature	30.6 C (87.1 F)	28 of 100 (Routine)
Ayutla	Mexico	Record daily precipitation	106.9 mm (4.2 in)	28 of 100 (Routine)
Paraiso	Mexico	Record low maximum temperature	27.8 C (82.0 F)	28 of 100 (Routine)
Guayabal	Puerto Rico [United States]	Record daily precipitation	77.5 mm (3.1 in)	28 of 100 (Routine)
Nerchinskij Zavod	Russia	Record low maximum temperature	4.8 C (40.6 F)	28 of 100 (Routine)
Santiago de Compostela/Labacol	Spain	Record low minimum temperature	4.4 C (39.9 F)	28 of 100 (Routine)
Williams	United States	Record low maximum temperature	12.2 C (54.0 F)	28 of 100 (Routine)
Gera-Leumnitz	Germany	Record high maximum temperature	31.6 C (88.9 F)	27 of 100 (Routine)
Weilerswist-Lommersum	Germany	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Homberg/Ohm	Germany	Record high maximum temperature	30.8 C (87.4 F)	27 of 100 (Routine)
Seesen	Germany	Record high maximum temperature	29.8 C (85.6 F)	27 of 100 (Routine)
Bodoe VI	Norway	Record high maximum temperature	20.1 C (68.2 F)	27 of 100 (Routine)
Happy Jack Rs	United States	Record daily precipitation	40.4 mm (1.6 in)	27 of 100 (Routine)
Springfields	Australia	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Yap Island WSO AP	Federated States of Micronesia	Record low minimum temperature	19.4 C (66.9 F)	26 of 100 (Routine)
Chuuk WSO AP	Federated States of Micronesia	Record low minimum temperature	19.4 C (66.9 F)	26 of 100 (Routine)
Gilserberg-Moischeid	Germany	Record high maximum temperature	29.4 C (84.9 F)	26 of 100 (Routine)
Gottingen	Germany	Record high maximum temperature	30.8 C (87.4 F)	26 of 100 (Routine)
Bad Marienberg	Germany	Record high minimum temperature	18.7 C (65.7 F)	26 of 100 (Routine)

Counts by Type and Timescale

854 records

Records set or tied on 14 September 1999 by type: Highest daily maximum 321, Lowest daily maximum 137, Highest daily minimum 185, Lowest daily minimum 129, Heaviest daily rainfall 82.

Records on 14 September 1999 by type
Record type	Records
Highest daily maximum	321
Lowest daily maximum	137
Highest daily minimum	185
Lowest daily minimum	129
Heaviest daily rainfall	82
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 14 September 1999 by timescale: all-time 1, monthly 14, daily 839.

How Much Records Were Beaten By

666 broken records

Margins by which the 666 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 86.1. Ties are not counted.

Top 20 by Significance

14 September 1999

Top 20 records on 14 September 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 September 1999	Sernovodsk, RU	daily rain	41.4 mm (1.6 in)	25.3 mm (1.0 in)	48 years	60 of 100 (Major)
14 September 1999	Washington Wwtp 4W, US	daily rain	161.5 mm (6.4 in)	86.1 mm (3.4 in)	14 years	52 of 100 (Notable)
14 September 1999	Flagstaff AP, US	daily rain	38.1 mm (1.5 in)	22.1 mm (0.9 in)	68 years	51 of 100 (Notable)
14 September 1999	Walnut Creek, US	daily rain	50.3 mm (2.0 in)	21.9 mm (0.9 in)	68 years	47 of 100 (Notable)
14 September 1999	Wattisham, GB	daily rain	49.6 mm (2.0 in)	27.2 mm (1.1 in)	4 years	45 of 100 (Notable)
14 September 1999	Prescott Love Fld, US	daily rain	41.9 mm (1.6 in)	32.5 mm (1.3 in)	32 years	42 of 100 (Notable)
14 September 1999	Uccle, BE	daily high min	16.9 C (62.4 F)	0.4 C (0.7 F)	107 years	41 of 100 (Notable)
14 September 1999	Siwa, EG	daily high min	25.0 C (77.0 F)	2.0 C (3.6 F)	84 years	40 of 100 (Notable)
14 September 1999	El Zapote, MX	daily high min	28.3 C (82.9 F)	3.3 C (5.9 F)	32 years	40 of 100 (Notable)
14 September 1999	Araluen, AU	daily rain	43.2 mm (1.7 in)	14.0 mm (0.6 in)	56 years	39 of 100 (Notable)
14 September 1999	Brocken, DE	daily high max	23.8 C (74.8 F)	1.9 C (3.4 F)	80 years	38 of 100 (Notable)
14 September 1999	Richland, US	daily high min	14.4 C (57.9 F)	1.6 C (2.9 F)	80 years	38 of 100 (Notable)
14 September 1999	Nurnberg, DE	daily high max	29.8 C (85.6 F)	1.7 C (3.1 F)	80 years	37 of 100 (Notable)
14 September 1999	Brocken, DE	daily high min	15.6 C (60.1 F)	2.1 C (3.8 F)	76 years	37 of 100 (Notable)
14 September 1999	De Bilt, NL	daily high min	17.0 C (62.6 F)	1.5 C (2.7 F)	80 years	37 of 100 (Notable)
14 September 1999	Whiteriver 1 SW, US	daily high min	20.0 C (68.0 F)	4.4 C (7.9 F)	49 years	37 of 100 (Notable)
14 September 1999	Altastenberg, DE	daily high min	16.6 C (61.9 F)	2.0 C (3.6 F)	69 years	36 of 100 (Notable)
14 September 1999	Francisco Rueda, MX	monthly rain	161.8 mm (6.4 in)	42.9 mm (1.7 in)	18 years	36 of 100 (Notable)
14 September 1999	Mayaguez City, PR	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	74 years	36 of 100 (Notable)
14 September 1999	Kleve, DE	daily high min	17.5 C (63.5 F)	0.7 C (1.3 F)	80 years	35 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

1814 to 1999

Records set or tied on this calendar date in each year from 1814 to 1999. 1999 had 854 records.

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

Records on 09-14 in each year
Year	Records
1814	1
1828	1
1830	1
1831	1
1833	1
1835	1
1837	3
1848	1
1854	1
1861	1
1867	2
1868	2
1870	1
1872	1
1873	3
1874	1
1876	2
1879	1
1880	1
1882	1
1886	5
1887	3
1888	1
1889	1
1890	1
1891	2
1893	1
1894	2
1895	2
1896	1
1897	2
1898	4
1899	2
1900	2
1901	11
1902	12
1903	34
1904	13
1905	12
1906	14
1907	7
1908	16
1909	31
1910	9
1911	61
1912	50
1913	36
1914	31
1915	116
1916	13
1917	30
1918	35
1919	166
1920	108
1921	38
1922	77
1923	279
1924	95
1925	206
1926	49
1927	455
1928	116
1929	185
1930	197
1931	652
1932	211
1933	365
1934	181
1935	636
1936	609
1937	406
1938	335
1939	1,007
1940	415
1941	227
1942	186
1943	281
1944	293
1945	691
1946	379
1947	718
1948	504
1949	640
1950	327
1951	422
1952	469
1953	680
1954	275
1955	469
1956	479
1957	490
1958	254
1959	702
1960	599
1961	956
1962	339
1963	592
1964	658
1965	640
1966	888
1967	355
1968	369
1969	429
1970	1,351
1971	549
1972	409
1973	854
1974	622
1975	880
1976	547
1977	572
1978	663
1979	957
1980	543
1981	486
1982	1,012
1983	623
1984	855
1985	736
1986	716
1987	856
1988	781
1989	1,127
1990	1,088
1991	999
1992	677
1993	2,279
1994	1,143
1995	904
1996	1,091
1997	786
1998	2,049
1999	854
2000	997
2001	813
2002	899
2003	821
2004	762
2005	878
2006	1,009
2007	672
2008	1,437
2009	843
2010	938
2011	1,132
2012	634
2013	760
2014	758
2015	888
2016	1,387
2017	677
2018	632
2019	524
2020	671
2021	419
2022	612
2023	507
2024	838
2025	527
2026	783

Download the Data

Data for records on 1999-09-14: 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	645
20 to 40	16
40 to 60	3
60 to 80	1
80 to 100	1