Weather Records on 18 September 1975

976 weather records were set or tied worldwide on 18 September 1975. Highest significance: Fryerstown, AU.

Key Facts for 18 September 1975

On 18 September 1975, 976 weather records were set or tied at long-record stations worldwide.
238 were record highs and 78 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 29 monthly and 947 daily.
Fryerstown set a daily record precipitation of 55.0 mm (2.2 in) on 18 September 1975.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 418 records.

Record Map

976 stations

976 station records on 18 September 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Fryerstown	Australia	Record daily precipitation	55.0 mm (2.2 in)	70 of 100 (Major)
Newstead	Australia	Record daily precipitation	65.7 mm (2.6 in)	68 of 100 (Major)
Highland Home	United States	Record daily precipitation	119.9 mm (4.7 in)	68 of 100 (Major)
Bridgewater (Memsie)	Australia	Record daily precipitation	46.0 mm (1.8 in)	65 of 100 (Major)
Alexandra (Post Office)	Australia	Record daily precipitation	44.8 mm (1.8 in)	65 of 100 (Major)
Bealiba	Australia	Record daily precipitation	48.1 mm (1.9 in)	64 of 100 (Major)
Glenlyon	Australia	Record daily precipitation	64.4 mm (2.5 in)	64 of 100 (Major)
Uplands (Gibbo River Park)	Australia	Record daily precipitation	73.4 mm (2.9 in)	63 of 100 (Major)
Callaghan Creek Station	Australia	Record daily precipitation	69.0 mm (2.7 in)	62 of 100 (Major)
Chiltern (Post Office)	Australia	Record daily precipitation	41.6 mm (1.6 in)	62 of 100 (Major)
Mansfield (Post Office)	Australia	Record daily precipitation	53.0 mm (2.1 in)	62 of 100 (Major)
Yea	Australia	Record daily precipitation	38.0 mm (1.5 in)	62 of 100 (Major)
Pierson	Canada	Record daily precipitation	47.0 mm (1.9 in)	62 of 100 (Major)
Dos Bocas	Puerto Rico [United States]	Record daily precipitation	228.6 mm (9.0 in)	62 of 100 (Major)
Broadford Golf Course	Australia	Record daily precipitation	51.4 mm (2.0 in)	61 of 100 (Major)
Springhurst	Australia	Record daily precipitation	42.0 mm (1.7 in)	59 of 100 (Notable)
Rutherglen Research	Australia	Record daily precipitation	40.2 mm (1.6 in)	58 of 100 (Notable)
Whorouly	Australia	Record daily precipitation	41.8 mm (1.6 in)	58 of 100 (Notable)
Yackandandah	Australia	Record daily precipitation	64.2 mm (2.5 in)	58 of 100 (Notable)
Watchem	Australia	Record daily precipitation	35.6 mm (1.4 in)	56 of 100 (Notable)
Wilby	Australia	Record daily precipitation	35.0 mm (1.4 in)	56 of 100 (Notable)
Tryon	United States	Record daily precipitation	121.2 mm (4.8 in)	55 of 100 (Notable)
Seymour Shire Depot	Australia	Record daily precipitation	40.8 mm (1.6 in)	54 of 100 (Notable)
Carboor	Australia	Record daily precipitation	56.8 mm (2.2 in)	52 of 100 (Notable)
Milawa Brown Bros	Australia	Record daily precipitation	38.4 mm (1.5 in)	52 of 100 (Notable)
Eurobin	Australia	Record daily precipitation	72.0 mm (2.8 in)	52 of 100 (Notable)
Lake Eildon	Australia	Record daily precipitation	29.6 mm (1.2 in)	52 of 100 (Notable)
Leslie Manor (Boolarra)	Australia	Record daily precipitation	32.8 mm (1.3 in)	52 of 100 (Notable)
Colac (Shire Office)	Australia	Record daily precipitation	31.4 mm (1.2 in)	52 of 100 (Notable)
Whitewood	Canada	Record daily precipitation	46.5 mm (1.8 in)	52 of 100 (Notable)
Euroa	Australia	Record daily precipitation	31.4 mm (1.2 in)	51 of 100 (Notable)
Boronia 1	Australia	Record daily precipitation	36.4 mm (1.4 in)	51 of 100 (Notable)
Westhope	United States	Record daily precipitation	51.3 mm (2.0 in)	51 of 100 (Notable)
Benalla (Shadforth Street)	Australia	Record daily precipitation	36.8 mm (1.4 in)	50 of 100 (Notable)
Warrenbayne (Baddaginnie)	Australia	Record daily precipitation	34.6 mm (1.4 in)	50 of 100 (Notable)
Wooragee	Australia	Record daily precipitation	78.0 mm (3.1 in)	50 of 100 (Notable)
Benambra (Evandale)	Australia	Record daily precipitation	44.2 mm (1.7 in)	50 of 100 (Notable)
Joyces Creek	Australia	Record daily precipitation	57.6 mm (2.3 in)	50 of 100 (Notable)
Woodend (Carlisle Street)	Australia	Record daily precipitation	37.2 mm (1.5 in)	50 of 100 (Notable)
Velva	United States	Record daily precipitation	36.8 mm (1.4 in)	50 of 100 (Notable)
Manna Hill	Australia	Record daily precipitation	26.8 mm (1.1 in)	48 of 100 (Notable)
Inglewood (Post Office)	Australia	Record daily precipitation	40.4 mm (1.6 in)	48 of 100 (Notable)
Tangambalanga NE Dairy	Australia	Record daily precipitation	46.4 mm (1.8 in)	48 of 100 (Notable)
Peechelba East	Australia	Record daily precipitation	35.0 mm (1.4 in)	48 of 100 (Notable)
Nabowla	Australia	Record daily precipitation	40.6 mm (1.6 in)	48 of 100 (Notable)
St Arnaud (Coonooer Bridge)	Australia	Record daily precipitation	37.0 mm (1.5 in)	47 of 100 (Notable)
Dookie Agricultural College	Australia	Record daily precipitation	29.0 mm (1.1 in)	47 of 100 (Notable)
Wangaratta	Australia	Record daily precipitation	40.4 mm (1.6 in)	47 of 100 (Notable)
Eltham	Australia	Record daily precipitation	31.0 mm (1.2 in)	47 of 100 (Notable)
Epping	Australia	Record daily precipitation	31.4 mm (1.2 in)	47 of 100 (Notable)
Oakleigh (Metropolitan Golf Cl	Australia	Record daily precipitation	31.8 mm (1.3 in)	47 of 100 (Notable)
Kelso	Australia	Record daily precipitation	32.6 mm (1.3 in)	47 of 100 (Notable)
Estevan A	Canada	Record daily precipitation	48.0 mm (1.9 in)	47 of 100 (Notable)
Crossville Ed & Rsch STN	United States	Record daily precipitation	69.1 mm (2.7 in)	47 of 100 (Notable)
Tottington	Australia	Record daily precipitation	25.6 mm (1.0 in)	46 of 100 (Notable)
Strathmerton (Woodlea)	Australia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Molka (Lowana)	Australia	Record daily precipitation	28.0 mm (1.1 in)	46 of 100 (Notable)
Ventnor (Oaklands)	Australia	Record daily precipitation	27.4 mm (1.1 in)	46 of 100 (Notable)
Maldon (Derby Hill)	Australia	Record daily precipitation	45.8 mm (1.8 in)	46 of 100 (Notable)
Woodend (Corinella Road)	Australia	Record daily precipitation	40.0 mm (1.6 in)	46 of 100 (Notable)

Counts by Type and Timescale

976 records

Records set or tied on 18 September 1975 by type: Highest daily maximum 92, Lowest daily maximum 46, Highest daily minimum 146, Lowest daily minimum 32, Heaviest daily rainfall 659, Heaviest daily snowfall 1.

Records on 18 September 1975 by type
Record type	Records
Highest daily maximum	92
Lowest daily maximum	46
Highest daily minimum	146
Lowest daily minimum	32
Heaviest daily rainfall	659
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 18 September 1975 by timescale: all-time 0, monthly 29, daily 947.

How Much Records Were Beaten By

890 broken records

Margins by which the 890 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 109.5. Ties are not counted.

Top 20 by Significance

18 September 1975

Top 20 records on 18 September 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1975	Fryerstown, AU	daily rain	55.0 mm (2.2 in)	30.6 mm (1.2 in)	72 years	70 of 100 (Major)
18 September 1975	Newstead, AU	daily rain	65.7 mm (2.6 in)	33.9 mm (1.3 in)	72 years	68 of 100 (Major)
18 September 1975	Highland Home, US	daily rain	119.9 mm (4.7 in)	102.9 mm (4.1 in)	68 years	68 of 100 (Major)
18 September 1975	Bridgewater (Memsie), AU	daily rain	46.0 mm (1.8 in)	29.5 mm (1.2 in)	53 years	65 of 100 (Major)
18 September 1975	Alexandra (Post Office), AU	daily rain	44.8 mm (1.8 in)	34.6 mm (1.4 in)	53 years	65 of 100 (Major)
18 September 1975	Bealiba, AU	daily rain	48.1 mm (1.9 in)	29.0 mm (1.1 in)	53 years	64 of 100 (Major)
18 September 1975	Glenlyon, AU	daily rain	64.4 mm (2.5 in)	32.1 mm (1.3 in)	72 years	64 of 100 (Major)
18 September 1975	Uplands (Gibbo River Park), AU	daily rain	73.4 mm (2.9 in)	46.5 mm (1.8 in)	53 years	63 of 100 (Major)
18 September 1975	Callaghan Creek Station, AU	daily rain	69.0 mm (2.7 in)	51.2 mm (2.0 in)	53 years	62 of 100 (Major)
18 September 1975	Chiltern (Post Office), AU	daily rain	41.6 mm (1.6 in)	22.3 mm (0.9 in)	72 years	62 of 100 (Major)
18 September 1975	Mansfield (Post Office), AU	daily rain	53.0 mm (2.1 in)	30.4 mm (1.2 in)	52 years	62 of 100 (Major)
18 September 1975	Yea, AU	daily rain	38.0 mm (1.5 in)	21.5 mm (0.8 in)	72 years	62 of 100 (Major)
18 September 1975	Pierson, CA	daily rain	47.0 mm (1.9 in)	36.8 mm (1.4 in)	50 years	62 of 100 (Major)
18 September 1975	Dos Bocas, PR	monthly rain	228.6 mm (9.0 in)	109.5 mm (4.3 in)	33 years	62 of 100 (Major)
18 September 1975	Broadford Golf Course, AU	daily rain	51.4 mm (2.0 in)	26.0 mm (1.0 in)	72 years	61 of 100 (Major)
18 September 1975	Springhurst, AU	daily rain	42.0 mm (1.7 in)	29.3 mm (1.2 in)	53 years	59 of 100 (Notable)
18 September 1975	Rutherglen Research, AU	daily rain	40.2 mm (1.6 in)	23.7 mm (0.9 in)	54 years	58 of 100 (Notable)
18 September 1975	Whorouly, AU	daily rain	41.8 mm (1.6 in)	35.4 mm (1.4 in)	41 years	58 of 100 (Notable)
18 September 1975	Yackandandah, AU	daily rain	64.2 mm (2.5 in)	40.1 mm (1.6 in)	32 years	58 of 100 (Notable)
18 September 1975	Watchem, AU	daily rain	35.6 mm (1.4 in)	28.5 mm (1.1 in)	32 years	56 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

1803 to 1975

Records set or tied on this calendar date in each year from 1803 to 1975. 1975 had 976 records.

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

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 1975-09-18: 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	809
20 to 40	65
40 to 60	12
60 to 80	1
80 to 100	1
100 to 120	2