Weather Records on 15 September 1990

911 weather records were set or tied worldwide on 15 September 1990. Highest significance: Randwick Bowling Club, AU.

Key Facts for 15 September 1990

On 15 September 1990, 911 weather records were set or tied at long-record stations worldwide.
454 were record highs and 101 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 24 monthly and 887 daily.
Randwick Bowling Club set a daily record precipitation of 72.0 mm (2.8 in) on 15 September 1990.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 410 records.

Record Map

911 stations

911 station records on 15 September 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Randwick Bowling Club	Australia	Record daily precipitation	72.0 mm (2.8 in)	72 of 100 (Major)
Sydney (Observatory Hill)	Australia	Record daily precipitation	89.8 mm (3.5 in)	70 of 100 (Major)
Gordon Golf Club	Australia	Record daily precipitation	109.2 mm (4.3 in)	70 of 100 (Major)
Nowendoc (Beaufort)	Australia	Record daily precipitation	46.0 mm (1.8 in)	69 of 100 (Major)
Tenosique (Smn)	Mexico	Record daily precipitation	202.9 mm (8.0 in)	65 of 100 (Major)
Sydney Airport AMO	Australia	Record daily precipitation	72.6 mm (2.9 in)	63 of 100 (Major)
Ashfield Bowling Club	Australia	Record daily precipitation	50.0 mm (2.0 in)	58 of 100 (Notable)
Estevao Pinto	Brazil	Record daily precipitation	64.0 mm (2.5 in)	58 of 100 (Notable)
Gresford Post Office	Australia	Record daily precipitation	69.0 mm (2.7 in)	57 of 100 (Notable)
Sydney Botanic Gardens	Australia	Record daily precipitation	108.8 mm (4.3 in)	56 of 100 (Notable)
Coroaci	Brazil	Record daily precipitation	41.6 mm (1.6 in)	56 of 100 (Notable)
Willow Tree (Highlands)	Australia	Record daily precipitation	57.0 mm (2.2 in)	55 of 100 (Notable)
Clarence Town (Grey St)	Australia	Record daily precipitation	62.8 mm (2.5 in)	55 of 100 (Notable)
Paterson Post Office	Australia	Record daily precipitation	53.0 mm (2.1 in)	55 of 100 (Notable)
Wingen (Murrulla)	Australia	Record daily precipitation	41.0 mm (1.6 in)	52 of 100 (Notable)
Mosman (Bapaume Road)	Australia	Record daily precipitation	94.0 mm (3.7 in)	51 of 100 (Notable)
Cataguases	Brazil	Record daily precipitation	56.6 mm (2.2 in)	50 of 100 (Notable)
Itamarati-SE	Brazil	Record daily precipitation	55.4 mm (2.2 in)	50 of 100 (Notable)
Turramurra (Kissing Point Road	Australia	Record daily precipitation	108.6 mm (4.3 in)	49 of 100 (Notable)
Petrovskij Zavod	Russia	Record daily precipitation	32.1 mm (1.3 in)	49 of 100 (Notable)
Nowra Ran Air Station	Australia	Record daily precipitation	59.0 mm (2.3 in)	48 of 100 (Notable)
Jervis Bay Nature Reserve	Australia	Record daily precipitation	75.0 mm (3.0 in)	48 of 100 (Notable)
Galdinopolis	Brazil	Record daily precipitation	49.4 mm (1.9 in)	48 of 100 (Notable)
Lysva	Russia	Record daily precipitation	33.1 mm (1.3 in)	48 of 100 (Notable)
Prospect Reservoir	Australia	Record daily precipitation	31.6 mm (1.2 in)	47 of 100 (Notable)
Anta	Brazil	Record daily precipitation	55.0 mm (2.2 in)	47 of 100 (Notable)
Dungog Post Office	Australia	Record daily precipitation	54.8 mm (2.2 in)	46 of 100 (Notable)
Epping Chester Street	Australia	Record daily precipitation	63.0 mm (2.5 in)	46 of 100 (Notable)
Lindfield West	Australia	Record daily precipitation	98.0 mm (3.9 in)	46 of 100 (Notable)
Pymble (Canisius College)	Australia	Record daily precipitation	79.4 mm (3.1 in)	46 of 100 (Notable)
Aldeia	Brazil	Record daily precipitation	47.6 mm (1.9 in)	46 of 100 (Notable)
Guarani	Brazil	Record daily precipitation	60.4 mm (2.4 in)	46 of 100 (Notable)
Mulbring (Vincent Street)	Australia	Record daily precipitation	67.0 mm (2.6 in)	45 of 100 (Notable)
Pokolbin (Ben Ean)	Australia	Record daily precipitation	31.0 mm (1.2 in)	45 of 100 (Notable)
Kangaroo Valley (Main Rd)	Australia	Record daily precipitation	70.5 mm (2.8 in)	45 of 100 (Notable)
Cermoz	Russia	Record daily precipitation	38.6 mm (1.5 in)	45 of 100 (Notable)
Talbotton	United States	Record high minimum temperature	25.0 C (77.0 F)	45 of 100 (Notable)
Bear Gap	United States	Record daily precipitation	72.9 mm (2.9 in)	45 of 100 (Notable)
Castle Cove (Rosebridge Ave)	Australia	Record daily precipitation	84.6 mm (3.3 in)	44 of 100 (Notable)
Santa Maria Do Jetiba (Dnos)	Brazil	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Verhoture	Russia	Record daily precipitation	28.3 mm (1.1 in)	44 of 100 (Notable)
Steamboat Springs	United States	Record high maximum temperature	31.7 C (89.1 F)	44 of 100 (Notable)
Bom Jardim	Brazil	Record daily precipitation	45.0 mm (1.8 in)	43 of 100 (Notable)
Crescent Head	Australia	Record daily precipitation	55.4 mm (2.2 in)	42 of 100 (Notable)
Frenchs Forest (Frenchs Forest	Australia	Record daily precipitation	70.2 mm (2.8 in)	42 of 100 (Notable)
Darkes Forest (Kintyre)	Australia	Record daily precipitation	41.4 mm (1.6 in)	42 of 100 (Notable)
Fazenda Sao Gabriel	Brazil	Record daily precipitation	42.0 mm (1.7 in)	42 of 100 (Notable)
Guadalajara (Dge)	Mexico	Record daily precipitation	56.4 mm (2.2 in)	42 of 100 (Notable)
Kungur	Russia	Record daily precipitation	35.0 mm (1.4 in)	42 of 100 (Notable)
Tucson Magnetic Obsy	United States	Record daily precipitation	34.5 mm (1.4 in)	42 of 100 (Notable)
Burketown Post Office	Australia	Record low maximum temperature	27.0 C (80.6 F)	41 of 100 (Notable)
Cromer Golf Club	Australia	Record daily precipitation	64.2 mm (2.5 in)	41 of 100 (Notable)
Potts Hill Reservoir	Australia	Record daily precipitation	33.4 mm (1.3 in)	41 of 100 (Notable)
Barroso	Brazil	Record daily precipitation	62.0 mm (2.4 in)	41 of 100 (Notable)
Serov	Russia	Record daily precipitation	32.6 mm (1.3 in)	41 of 100 (Notable)
Biser	Russia	Record daily precipitation	32.4 mm (1.3 in)	41 of 100 (Notable)
Julesburg	United States	Record high minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Alpine	United States	Record daily precipitation	49.3 mm (1.9 in)	41 of 100 (Notable)
Ourimbah (Dog Trap Road)	Australia	Record daily precipitation	70.0 mm (2.8 in)	40 of 100 (Notable)
Wrixum/Fohr	Germany	Record low minimum temperature	5.2 C (41.4 F)	40 of 100 (Notable)

Counts by Type and Timescale

911 records

Records set or tied on 15 September 1990 by type: Highest daily maximum 265, Lowest daily maximum 40, Highest daily minimum 189, Lowest daily minimum 61, Heaviest daily rainfall 356.

Records on 15 September 1990 by type
Record type	Records
Highest daily maximum	265
Lowest daily maximum	40
Highest daily minimum	189
Lowest daily minimum	61
Heaviest daily rainfall	356
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1990 by timescale: all-time 0, monthly 24, daily 887.

How Much Records Were Beaten By

712 broken records

Margins by which the 712 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.5. Ties are not counted.

Top 20 by Significance

15 September 1990

Top 20 records on 15 September 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1990	Randwick Bowling Club, AU	daily rain	72.0 mm (2.8 in)	49.1 mm (1.9 in)	76 years	72 of 100 (Major)
15 September 1990	Sydney (Observatory Hill), AU	daily rain	89.8 mm (3.5 in)	59.1 mm (2.3 in)	68 years	70 of 100 (Major)
15 September 1990	Gordon Golf Club, AU	daily rain	109.2 mm (4.3 in)	79.2 mm (3.1 in)	76 years	70 of 100 (Major)
15 September 1990	Nowendoc (Beaufort), AU	daily rain	46.0 mm (1.8 in)	23.1 mm (0.9 in)	104 years	69 of 100 (Major)
15 September 1990	Tenosique (Smn), MX	daily rain	202.9 mm (8.0 in)	100.5 mm (4.0 in)	61 years	65 of 100 (Major)
15 September 1990	Sydney Airport AMO, AU	daily rain	72.6 mm (2.9 in)	42.9 mm (1.7 in)	57 years	63 of 100 (Major)
15 September 1990	Ashfield Bowling Club, AU	daily rain	50.0 mm (2.0 in)	28.4 mm (1.1 in)	68 years	58 of 100 (Notable)
15 September 1990	Estevao Pinto, BR	monthly rain	64.0 mm (2.5 in)	26.0 mm (1.0 in)	47 years	58 of 100 (Notable)
15 September 1990	Gresford Post Office, AU	daily rain	69.0 mm (2.7 in)	37.5 mm (1.5 in)	76 years	57 of 100 (Notable)
15 September 1990	Sydney Botanic Gardens, AU	monthly rain	108.8 mm (4.3 in)	17.9 mm (0.7 in)	72 years	56 of 100 (Notable)
15 September 1990	Coroaci, BR	daily rain	41.6 mm (1.6 in)	39.5 mm (1.6 in)	36 years	56 of 100 (Notable)
15 September 1990	Willow Tree (Highlands), AU	daily rain	57.0 mm (2.2 in)	38.5 mm (1.5 in)	45 years	55 of 100 (Notable)
15 September 1990	Clarence Town (Grey St), AU	daily rain	62.8 mm (2.5 in)	38.7 mm (1.5 in)	68 years	55 of 100 (Notable)
15 September 1990	Paterson Post Office, AU	daily rain	53.0 mm (2.1 in)	41.1 mm (1.6 in)	68 years	55 of 100 (Notable)
15 September 1990	Wingen (Murrulla), AU	daily rain	41.0 mm (1.6 in)	13.6 mm (0.5 in)	98 years	52 of 100 (Notable)
15 September 1990	Mosman (Bapaume Road), AU	daily rain	94.0 mm (3.7 in)	73.2 mm (2.9 in)	7 years	51 of 100 (Notable)
15 September 1990	Cataguases, BR	daily rain	56.6 mm (2.2 in)	33.1 mm (1.3 in)	48 years	50 of 100 (Notable)
15 September 1990	Itamarati-SE, BR	daily rain	55.4 mm (2.2 in)	31.2 mm (1.2 in)	47 years	50 of 100 (Notable)
15 September 1990	Turramurra (Kissing Point Road, AU	daily rain	108.6 mm (4.3 in)	79.6 mm (3.1 in)	7 years	49 of 100 (Notable)
15 September 1990	Petrovskij Zavod, RU	daily rain	32.1 mm (1.3 in)	24.6 mm (1.0 in)	19 years	49 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

1797 to 1990

Records set or tied on this calendar date in each year from 1797 to 1990. 1990 had 911 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1990-09-15: 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	612
20 to 40	79
40 to 60	13
60 to 80	7
80 to 100	0
100 to 120	1