Weather Records on 25 September 1999

804 weather records were set or tied worldwide on 25 September 1999. Highest significance: Leinefelde, DE.

Key Facts for 25 September 1999

On 25 September 1999, 804 weather records were set or tied at long-record stations worldwide.
559 were record highs and 112 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 23 monthly and 779 daily.
Leinefelde set a daily record precipitation of 30.2 mm (1.2 in) on 25 September 1999.
Across 163 earlier years (1825 to 2026) the same calendar date averaged 423 records.

Record Map

804 stations

804 station records on 25 September 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 September 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Leinefelde	Germany	Record daily precipitation	30.2 mm (1.2 in)	56 of 100 (Notable)
Tenosique (Smn)	Mexico	Record low minimum temperature	17.8 C (64.0 F)	54 of 100 (Notable)
Montelimar	France	Record daily precipitation	218.4 mm (8.6 in)	53 of 100 (Notable)
Frontera Amatenango	Mexico	Record daily precipitation	79.8 mm (3.1 in)	53 of 100 (Notable)
Nevelsk	Russia	Record daily precipitation	59.2 mm (2.3 in)	52 of 100 (Notable)
Geneve Cointrin	Switzerland	Record daily precipitation	72.9 mm (2.9 in)	51 of 100 (Notable)
Indore	India	Record daily precipitation	85.1 mm (3.4 in)	49 of 100 (Notable)
Hallsberg	Sweden	Record daily precipitation	37.6 mm (1.5 in)	48 of 100 (Notable)
Reserve	United States	Record low minimum temperature	7.2 C (45.0 F)	48 of 100 (Notable)
Stanley	United States	Record high minimum temperature	9.4 C (48.9 F)	45 of 100 (Notable)
Oslo Blindern	Norway	Record daily precipitation	45.5 mm (1.8 in)	44 of 100 (Notable)
Ft Bidwell	United States	Record high minimum temperature	12.8 C (55.0 F)	44 of 100 (Notable)
Melbourne WFO	United States	Record daily precipitation	202.7 mm (8.0 in)	43 of 100 (Notable)
Mys Krilon	Russia	Record daily precipitation	46.5 mm (1.8 in)	42 of 100 (Notable)
On	Sweden	Record daily precipitation	46.4 mm (1.8 in)	42 of 100 (Notable)
Hofheim	Germany	Record daily precipitation	25.8 mm (1.0 in)	41 of 100 (Notable)
Nochistlan	Mexico	Record low minimum temperature	5.6 C (42.1 F)	41 of 100 (Notable)
Bodie California St Historic P	United States	Record high maximum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record high minimum temperature	14.8 C (58.6 F)	39 of 100 (Notable)
Oksoey Fyr	Norway	Record high minimum temperature	14.5 C (58.1 F)	39 of 100 (Notable)
Holmsk	Russia	Record daily precipitation	50.0 mm (2.0 in)	39 of 100 (Notable)
Finspang	Sweden	Record daily precipitation	34.0 mm (1.3 in)	39 of 100 (Notable)
Kaiserslautern	Germany	Record high minimum temperature	14.8 C (58.6 F)	38 of 100 (Notable)
Portaceli	Mexico	Record daily precipitation	80.8 mm (3.2 in)	38 of 100 (Notable)
Los Castillos	Mexico	Record high maximum temperature	37.2 C (99.0 F)	38 of 100 (Notable)
Nordstrand	Norway	Record daily precipitation	37.0 mm (1.5 in)	38 of 100 (Notable)
Padany	Russia	Record daily precipitation	26.6 mm (1.0 in)	38 of 100 (Notable)
Tranebjerg	Denmark	Record high minimum temperature	14.6 C (58.3 F)	36 of 100 (Notable)
Koebenhavn: Landbohojskolen-1	Denmark	Record high minimum temperature	15.0 C (59.0 F)	36 of 100 (Notable)
Marnitz	Germany	Record high minimum temperature	13.3 C (55.9 F)	36 of 100 (Notable)
Sonneberg-Neufang	Germany	Record daily precipitation	42.8 mm (1.7 in)	36 of 100 (Notable)
El Zapote	Mexico	Record high minimum temperature	27.8 C (82.0 F)	36 of 100 (Notable)
Ahuacatlan	Mexico	Record daily precipitation	45.0 mm (1.8 in)	35 of 100 (Notable)
Marion	United States	Record low minimum temperature	2.2 C (36.0 F)	35 of 100 (Notable)
Cipo	Brazil	Record daily precipitation	28.2 mm (1.1 in)	34 of 100 (Routine)
Karlsruhe	Germany	Record high minimum temperature	15.9 C (60.6 F)	34 of 100 (Routine)
Springfield Abraham Lincoln Ca	United States	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Stuttgart-Stadt	Germany	Record high minimum temperature	15.2 C (59.4 F)	33 of 100 (Routine)
Wakkanai	Japan	Record daily precipitation	62.0 mm (2.4 in)	33 of 100 (Routine)
Santo Domingo	Mexico	Record daily precipitation	149.6 mm (5.9 in)	33 of 100 (Routine)
Ilyinskiy	Russia	Record daily precipitation	37.1 mm (1.5 in)	33 of 100 (Routine)
Burlington Muni AP	United States	Record high maximum temperature	33.3 C (91.9 F)	33 of 100 (Routine)
San Jeronimo	Mexico	Record daily precipitation	162.8 mm (6.4 in)	32 of 100 (Routine)
Tecolotlan (Dge)	Mexico	Record daily precipitation	50.0 mm (2.0 in)	32 of 100 (Routine)
Jackson	United States	Record high minimum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Tepexpan	Mexico	Record high maximum temperature	33.9 C (93.0 F)	31 of 100 (Routine)
San Juanillo	Mexico	Record low minimum temperature	17.8 C (64.0 F)	31 of 100 (Routine)
Malkal	Sudan	Record low minimum temperature	17.0 C (62.6 F)	31 of 100 (Routine)
Basel Binningen	Switzerland	Record high minimum temperature	16.6 C (61.9 F)	31 of 100 (Routine)
Escalante	United States	Record high maximum temperature	30.6 C (87.1 F)	31 of 100 (Routine)
Faverges-de-la-Tour	France	Record daily precipitation	120.0 mm (4.7 in)	30 of 100 (Routine)
Parral A. El Hormiguero	Mexico	Record high minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Ahuatepec	Mexico	Record low minimum temperature	1.7 C (35.1 F)	30 of 100 (Routine)
Royal Palm Rs	United States	Record low maximum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Wrixum/Fohr	Germany	Record high minimum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
Montemorelos	Mexico	Record high maximum temperature	37.2 C (99.0 F)	29 of 100 (Routine)
Cedral	Mexico	Record high maximum temperature	32.8 C (91.0 F)	29 of 100 (Routine)
Ft Lauderdale	United States	Record low maximum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Graz	Austria	Record high maximum temperature	26.7 C (80.1 F)	28 of 100 (Routine)
Estancia	Brazil	Record daily precipitation	37.4 mm (1.5 in)	28 of 100 (Routine)

Counts by Type and Timescale

804 records

Records set or tied on 25 September 1999 by type: Highest daily maximum 263, Lowest daily maximum 34, Highest daily minimum 296, Lowest daily minimum 78, Heaviest daily rainfall 128, Heaviest daily snowfall 4, Deepest snow cover 1.

Records on 25 September 1999 by type
Record type	Records
Highest daily maximum	263
Lowest daily maximum	34
Highest daily minimum	296
Lowest daily minimum	78
Heaviest daily rainfall	128
Heaviest daily snowfall	4
Deepest snow cover	1

Records on 25 September 1999 by timescale: all-time 2, monthly 23, daily 779.

How Much Records Were Beaten By

623 broken records

Margins by which the 623 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 52.9. Ties are not counted.

Top 20 by Significance

25 September 1999

Top 20 records on 25 September 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 September 1999	Leinefelde, DE	daily rain	30.2 mm (1.2 in)	23.6 mm (0.9 in)	36 years	56 of 100 (Notable)
25 September 1999	Tenosique (Smn), MX	daily low min	17.8 C (64.0 F)	2.8 C (5.0 F)	77 years	54 of 100 (Notable)
25 September 1999	Montelimar, FR	all-time rain	218.4 mm (8.6 in)	10.6 mm (0.4 in)	72 years	53 of 100 (Notable)
25 September 1999	Frontera Amatenango, MX	daily rain	79.8 mm (3.1 in)	52.9 mm (2.1 in)	36 years	53 of 100 (Notable)
25 September 1999	Nevelsk, RU	daily rain	59.2 mm (2.3 in)	43.6 mm (1.7 in)	24 years	52 of 100 (Notable)
25 September 1999	Geneve Cointrin, CH	daily rain	72.9 mm (2.9 in)	51.7 mm (2.0 in)	24 years	51 of 100 (Notable)
25 September 1999	Indore, IN	daily rain	85.1 mm (3.4 in)	46.5 mm (1.8 in)	64 years	49 of 100 (Notable)
25 September 1999	Hallsberg, SE	daily rain	37.6 mm (1.5 in)	23.4 mm (0.9 in)	46 years	48 of 100 (Notable)
25 September 1999	Reserve, US	daily low min	7.2 C (45.0 F)	3.9 C (7.0 F)	89 years	48 of 100 (Notable)
25 September 1999	Stanley, US	daily high min	9.4 C (48.9 F)	6.1 C (11.0 F)	77 years	45 of 100 (Notable)
25 September 1999	Oslo Blindern, NO	daily rain	45.5 mm (1.8 in)	23.2 mm (0.9 in)	24 years	44 of 100 (Notable)
25 September 1999	Ft Bidwell, US	daily high min	12.8 C (55.0 F)	1.7 C (3.1 F)	125 years	44 of 100 (Notable)
25 September 1999	Melbourne WFO, US	monthly rain	202.7 mm (8.0 in)	23.9 mm (0.9 in)	54 years	43 of 100 (Notable)
25 September 1999	Mys Krilon, RU	daily rain	46.5 mm (1.8 in)	33.3 mm (1.3 in)	9 years	42 of 100 (Notable)
25 September 1999	On, SE	daily rain	46.4 mm (1.8 in)	24.2 mm (1.0 in)	14 years	42 of 100 (Notable)
25 September 1999	Hofheim, DE	daily rain	25.8 mm (1.0 in)	15.8 mm (0.6 in)	24 years	41 of 100 (Notable)
25 September 1999	Nochistlan, MX	daily low min	5.6 C (42.1 F)	4.4 C (7.9 F)	48 years	41 of 100 (Notable)
25 September 1999	Bodie California St Historic P, US	daily high max	25.6 C (78.1 F)	0.6 C (1.1 F)	99 years	40 of 100 (Notable)
25 September 1999	Munchen-Nymphenburg, DE	daily high min	14.8 C (58.6 F)	0.1 C (0.2 F)	98 years	39 of 100 (Notable)
25 September 1999	Oksoey Fyr, NO	daily high min	14.5 C (58.1 F)	0.1 C (0.2 F)	97 years	39 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

1825 to 1999

Records set or tied on this calendar date in each year from 1825 to 1999. 1999 had 804 records.

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

Records on 09-25 in each year
Year	Records
1825	1
1834	1
1836	1
1842	1
1843	1
1847	1
1851	1
1852	1
1855	1
1857	2
1859	1
1860	1
1863	1
1865	1
1866	2
1867	2
1868	1
1871	2
1872	1
1874	1
1875	1
1877	3
1879	2
1881	3
1884	3
1885	6
1886	1
1887	3
1889	7
1891	3
1893	7
1894	3
1895	5
1896	5
1897	2
1898	1
1899	2
1900	7
1901	6
1902	11
1903	4
1904	10
1905	16
1906	7
1907	35
1908	20
1909	22
1910	5
1911	9
1912	63
1913	13
1914	15
1915	43
1916	139
1917	138
1918	16
1919	20
1920	75
1921	32
1922	47
1923	68
1924	157
1925	141
1926	740
1927	166
1928	480
1929	158
1930	489
1931	500
1932	260
1933	542
1934	394
1935	258
1936	274
1937	190
1938	335
1939	454
1940	517
1941	269
1942	970
1943	488
1944	246
1945	514
1946	292
1947	666
1948	501
1949	479
1950	1,163
1951	639
1952	515
1953	242
1954	292
1955	546
1956	503
1957	231
1958	454
1959	396
1960	694
1961	530
1962	305
1963	602
1964	403
1965	690
1966	334
1967	428
1968	300
1969	196
1970	783
1971	323
1972	706
1973	650
1974	995
1975	1,166
1976	541
1977	875
1978	462
1979	719
1980	687
1981	669
1982	759
1983	647
1984	1,305
1985	446
1986	1,766
1987	560
1988	571
1989	1,367
1990	875
1991	1,243
1992	1,346
1993	1,015
1994	666
1995	1,013
1996	648
1997	1,278
1998	1,346
1999	804
2000	1,536
2001	1,536
2002	876
2003	758
2004	519
2005	1,484
2006	767
2007	1,284
2008	766
2009	854
2010	1,125
2011	763
2012	505
2013	615
2014	800
2015	868
2016	781
2017	1,253
2018	648
2019	530
2020	1,089
2021	355
2022	301
2023	580
2024	1,120
2025	569
2026	473

Download the Data

Data for records on 1999-09-25: 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 10	576
10 to 20	27
20 to 30	9
30 to 40	3
40 to 50	5
50 to 60	3