Weather Records on 21 September 1976

694 weather records were set or tied worldwide on 21 September 1976. Highest significance: Macedon Forestry, AU.

Key Facts for 21 September 1976

On 21 September 1976, 694 weather records were set or tied at long-record stations worldwide.
116 were record highs and 122 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 684 daily.
Macedon Forestry set a daily record precipitation of 45.4 mm (1.8 in) on 21 September 1976.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 449 records.

Record Map

694 stations

694 station records on 21 September 1976 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1976: highest significance records shown on the map
Station	Country	Type	Value	Significance
Macedon Forestry	Australia	Record daily precipitation	45.4 mm (1.8 in)	65 of 100 (Major)
Cape Schanck Lighthouse	Australia	Record daily precipitation	43.4 mm (1.7 in)	64 of 100 (Major)
Coomandook	Australia	Record daily precipitation	28.2 mm (1.1 in)	62 of 100 (Major)
Tintinara	Australia	Record daily precipitation	35.0 mm (1.4 in)	62 of 100 (Major)
Penola Post Office	Australia	Record daily precipitation	33.2 mm (1.3 in)	60 of 100 (Major)
Tarwin Lower (Riverside)	Australia	Record daily precipitation	25.3 mm (1.0 in)	59 of 100 (Notable)
Ungarie Post Office	Australia	Record daily precipitation	42.6 mm (1.7 in)	58 of 100 (Notable)
West Wyalong Post Office	Australia	Record daily precipitation	45.2 mm (1.8 in)	58 of 100 (Notable)
Netherton (the Glen)	Australia	Record daily precipitation	30.2 mm (1.2 in)	56 of 100 (Notable)
Deer Park	Australia	Record daily precipitation	41.4 mm (1.6 in)	56 of 100 (Notable)
Alexandra (Post Office)	Australia	Record daily precipitation	35.6 mm (1.4 in)	55 of 100 (Notable)
Coonalpyn	Australia	Record daily precipitation	28.8 mm (1.1 in)	54 of 100 (Notable)
Beales Reservoir	Australia	Record daily precipitation	34.8 mm (1.4 in)	54 of 100 (Notable)
Sydenham	Australia	Record daily precipitation	37.0 mm (1.5 in)	54 of 100 (Notable)
Jung	Australia	Record daily precipitation	34.6 mm (1.4 in)	53 of 100 (Notable)
Charam	Australia	Record daily precipitation	27.8 mm (1.1 in)	53 of 100 (Notable)
Kybybolite Research Centre	Australia	Record daily precipitation	28.2 mm (1.1 in)	52 of 100 (Notable)
Wyalong Post Office	Australia	Record daily precipitation	43.6 mm (1.7 in)	52 of 100 (Notable)
Keilor (Arundel)	Australia	Record daily precipitation	37.0 mm (1.5 in)	52 of 100 (Notable)
Ribeirao Corrente	Brazil	Record daily precipitation	43.7 mm (1.7 in)	52 of 100 (Notable)
Bridgewater (Post Office)	Australia	Record daily precipitation	28.0 mm (1.1 in)	51 of 100 (Notable)
Gisborne	Australia	Record daily precipitation	40.8 mm (1.6 in)	51 of 100 (Notable)
Tailem Bend (Woodlands)	Australia	Record daily precipitation	27.0 mm (1.1 in)	50 of 100 (Notable)
Jindera (Wadilock)	Australia	Record daily precipitation	26.4 mm (1.0 in)	50 of 100 (Notable)
Port Fairy Post Office	Australia	Record daily precipitation	30.2 mm (1.2 in)	50 of 100 (Notable)
Harrow (Post Office)	Australia	Record daily precipitation	37.6 mm (1.5 in)	49 of 100 (Notable)
Bendigo Prison	Australia	Record daily precipitation	37.0 mm (1.5 in)	49 of 100 (Notable)
Mornington	Australia	Record daily precipitation	29.2 mm (1.1 in)	49 of 100 (Notable)
Blackwood	Australia	Record daily precipitation	32.0 mm (1.3 in)	49 of 100 (Notable)
Portarlington	Australia	Record daily precipitation	31.6 mm (1.2 in)	49 of 100 (Notable)
San Francisco Tlalcilalcalpan	Mexico	Record daily precipitation	60.5 mm (2.4 in)	49 of 100 (Notable)
Nagambie (Goulburn Weir)	Australia	Record daily precipitation	30.0 mm (1.2 in)	48 of 100 (Notable)
Clear Lake	Australia	Record daily precipitation	27.4 mm (1.1 in)	47 of 100 (Notable)
Melton	Australia	Record daily precipitation	35.3 mm (1.4 in)	47 of 100 (Notable)
Werribee Research Farm	Australia	Record daily precipitation	28.4 mm (1.1 in)	47 of 100 (Notable)
Wilsons Reservoir	Australia	Record daily precipitation	34.4 mm (1.4 in)	47 of 100 (Notable)
Essendon Airport	Australia	Record daily precipitation	27.6 mm (1.1 in)	46 of 100 (Notable)
Moorabool Reservoir	Australia	Record daily precipitation	36.0 mm (1.4 in)	46 of 100 (Notable)
Seymour Shire Depot	Australia	Record daily precipitation	25.4 mm (1.0 in)	46 of 100 (Notable)
Woodend (Carlisle Street)	Australia	Record daily precipitation	36.4 mm (1.4 in)	46 of 100 (Notable)
Geranium	Australia	Record daily precipitation	34.2 mm (1.3 in)	45 of 100 (Notable)
Lucindale Post Office	Australia	Record daily precipitation	34.0 mm (1.3 in)	45 of 100 (Notable)
Braeside	Australia	Record daily precipitation	30.4 mm (1.2 in)	45 of 100 (Notable)
Weemelah (Crinolyn)	Australia	Record daily precipitation	40.0 mm (1.6 in)	45 of 100 (Notable)
Lake Eildon	Australia	Record daily precipitation	34.0 mm (1.3 in)	45 of 100 (Notable)
Malmsbury Reservoir	Australia	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Leongatha Sth Gippsland Water	Australia	Record daily precipitation	30.6 mm (1.2 in)	44 of 100 (Notable)
Neerim South	Australia	Record daily precipitation	42.1 mm (1.7 in)	44 of 100 (Notable)
Coliban Upper	Australia	Record daily precipitation	35.0 mm (1.4 in)	44 of 100 (Notable)
Long Lake 5 SW	United States	Record daily precipitation	57.7 mm (2.3 in)	44 of 100 (Notable)
Needles Eye (Ventnor)	Australia	Record daily precipitation	32.8 mm (1.3 in)	43 of 100 (Notable)
Branxholme	Australia	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Divnoe	Russia	Record daily precipitation	30.4 mm (1.2 in)	43 of 100 (Notable)
Chernivtsi	Ukraine	Record daily precipitation	34.1 mm (1.3 in)	43 of 100 (Notable)
Marrar (Centenary Drive)	Australia	Record daily precipitation	25.2 mm (1.0 in)	42 of 100 (Notable)
Cowes	Australia	Record daily precipitation	31.0 mm (1.2 in)	42 of 100 (Notable)
Yea	Australia	Record daily precipitation	30.6 mm (1.2 in)	42 of 100 (Notable)
Merton Weir Farm	Australia	Record daily precipitation	32.4 mm (1.3 in)	42 of 100 (Notable)
Merino	Australia	Record daily precipitation	30.6 mm (1.2 in)	42 of 100 (Notable)
Kaniva	Australia	Record daily precipitation	31.6 mm (1.2 in)	41 of 100 (Notable)

Counts by Type and Timescale

694 records

Records set or tied on 21 September 1976 by type: Highest daily maximum 41, Lowest daily maximum 49, Highest daily minimum 75, Lowest daily minimum 73, Heaviest daily rainfall 456.

Records on 21 September 1976 by type
Record type	Records
Highest daily maximum	41
Lowest daily maximum	49
Highest daily minimum	75
Lowest daily minimum	73
Heaviest daily rainfall	456
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 1976 by timescale: all-time 0, monthly 10, daily 684.

How Much Records Were Beaten By

598 broken records

Margins by which the 598 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 43.4. Ties are not counted.

Top 20 by Significance

21 September 1976

Top 20 records on 21 September 1976 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1976	Macedon Forestry, AU	daily rain	45.4 mm (1.8 in)	22.3 mm (0.9 in)	91 years	65 of 100 (Major)
21 September 1976	Cape Schanck Lighthouse, AU	daily rain	43.4 mm (1.7 in)	28.2 mm (1.1 in)	50 years	64 of 100 (Major)
21 September 1976	Coomandook, AU	daily rain	28.2 mm (1.1 in)	19.1 mm (0.8 in)	53 years	62 of 100 (Major)
21 September 1976	Tintinara, AU	daily rain	35.0 mm (1.4 in)	24.8 mm (1.0 in)	53 years	62 of 100 (Major)
21 September 1976	Penola Post Office, AU	daily rain	33.2 mm (1.3 in)	16.9 mm (0.7 in)	68 years	60 of 100 (Major)
21 September 1976	Tarwin Lower (Riverside), AU	daily rain	25.3 mm (1.0 in)	17.4 mm (0.7 in)	89 years	59 of 100 (Notable)
21 September 1976	Ungarie Post Office, AU	daily rain	42.6 mm (1.7 in)	35.2 mm (1.4 in)	36 years	58 of 100 (Notable)
21 September 1976	West Wyalong Post Office, AU	daily rain	45.2 mm (1.8 in)	32.5 mm (1.3 in)	36 years	58 of 100 (Notable)
21 September 1976	Netherton (the Glen), AU	daily rain	30.2 mm (1.2 in)	17.5 mm (0.7 in)	34 years	56 of 100 (Notable)
21 September 1976	Deer Park, AU	daily rain	41.4 mm (1.6 in)	28.7 mm (1.1 in)	36 years	56 of 100 (Notable)
21 September 1976	Alexandra (Post Office), AU	daily rain	35.6 mm (1.4 in)	13.2 mm (0.5 in)	87 years	55 of 100 (Notable)
21 September 1976	Coonalpyn, AU	daily rain	28.8 mm (1.1 in)	14.1 mm (0.6 in)	53 years	54 of 100 (Notable)
21 September 1976	Beales Reservoir, AU	daily rain	34.8 mm (1.4 in)	17.0 mm (0.7 in)	68 years	54 of 100 (Notable)
21 September 1976	Sydenham, AU	daily rain	37.0 mm (1.5 in)	24.0 mm (0.9 in)	36 years	54 of 100 (Notable)
21 September 1976	Jung, AU	daily rain	34.6 mm (1.4 in)	26.7 mm (1.1 in)	33 years	53 of 100 (Notable)
21 September 1976	Charam, AU	daily rain	27.8 mm (1.1 in)	16.4 mm (0.6 in)	53 years	53 of 100 (Notable)
21 September 1976	Kybybolite Research Centre, AU	daily rain	28.2 mm (1.1 in)	15.5 mm (0.6 in)	53 years	52 of 100 (Notable)
21 September 1976	Wyalong Post Office, AU	daily rain	43.6 mm (1.7 in)	33.4 mm (1.3 in)	14 years	52 of 100 (Notable)
21 September 1976	Keilor (Arundel), AU	daily rain	37.0 mm (1.5 in)	18.2 mm (0.7 in)	56 years	52 of 100 (Notable)
21 September 1976	Ribeirao Corrente, BR	daily rain	43.7 mm (1.7 in)	43.4 mm (1.7 in)	31 years	52 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

1805 to 1976

Records set or tied on this calendar date in each year from 1805 to 1976. 1976 had 694 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	588
2026	469

Download the Data

Data for records on 1976-09-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Histogram of margins by which records were beaten on 21 September 1976
Margin	Records
0 to 10	456
10 to 20	107
20 to 30	24
30 to 40	10
40 to 50	1