Weather Records on 30 September 1976

775 weather records were set or tied worldwide on 30 September 1976. Highest significance: Caduao, MX.

Key Facts for 30 September 1976

On 30 September 1976, 775 weather records were set or tied at long-record stations worldwide.
238 were record highs and 202 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 51 monthly and 718 daily.
Caduao set an all-time record daily precipitation of 319.8 mm (12.6 in) on 30 September 1976.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 437 records.

Record Map

775 stations

775 station records on 30 September 1976 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1976: highest significance records shown on the map
Station	Country	Type	Value	Significance
Caduao	Mexico	Record daily precipitation	319.8 mm (12.6 in)	67 of 100 (Major)
Araci	Brazil	Record daily precipitation	52.4 mm (2.1 in)	62 of 100 (Major)
Paripiranga	Brazil	Record daily precipitation	70.0 mm (2.8 in)	61 of 100 (Major)
Santa Terezinha	Brazil	Record daily precipitation	56.2 mm (2.2 in)	60 of 100 (Major)
Ipiau	Brazil	Record daily precipitation	79.3 mm (3.1 in)	59 of 100 (Notable)
Visalia	United States	Record daily precipitation	35.6 mm (1.4 in)	59 of 100 (Notable)
Hopetown (Tnk)	South Africa	Record daily precipitation	52.0 mm (2.0 in)	56 of 100 (Notable)
Lajedinho	Brazil	Record daily precipitation	50.0 mm (2.0 in)	55 of 100 (Notable)
Tucano	Brazil	Record daily precipitation	30.0 mm (1.2 in)	55 of 100 (Notable)
Feira de Santana	Brazil	Record daily precipitation	59.0 mm (2.3 in)	55 of 100 (Notable)
Slurry	South Africa	Record daily precipitation	59.0 mm (2.3 in)	55 of 100 (Notable)
Porterville	United States	Record daily precipitation	39.4 mm (1.6 in)	55 of 100 (Notable)
Moxoto	Brazil	Record daily precipitation	74.2 mm (2.9 in)	54 of 100 (Notable)
San Bartolo	Mexico	Record daily precipitation	424.9 mm (16.7 in)	52 of 100 (Notable)
Minas Nuevas	Mexico	Record daily precipitation	119.9 mm (4.7 in)	52 of 100 (Notable)
Andarai	Brazil	Record daily precipitation	46.5 mm (1.8 in)	51 of 100 (Notable)
Valente	Brazil	Record daily precipitation	104.2 mm (4.1 in)	51 of 100 (Notable)
Konstantinovsk	Russia	Record daily precipitation	34.5 mm (1.4 in)	48 of 100 (Notable)
Lozova	Ukraine	Record daily precipitation	38.1 mm (1.5 in)	48 of 100 (Notable)
Arizona	Brazil	Record daily precipitation	31.2 mm (1.2 in)	47 of 100 (Notable)
Kanye	Botswana	Record daily precipitation	43.5 mm (1.7 in)	46 of 100 (Notable)
Santo Antonio de Jesus	Brazil	Record daily precipitation	136.1 mm (5.4 in)	46 of 100 (Notable)
Los Divisaderos	Mexico	Record daily precipitation	240.3 mm (9.5 in)	46 of 100 (Notable)
Chorrocho	Brazil	Record daily precipitation	30.0 mm (1.2 in)	45 of 100 (Notable)
Ibitiara (Bom Sucesso)	Brazil	Record daily precipitation	60.0 mm (2.4 in)	45 of 100 (Notable)
Oranjerivier (Sar)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	45 of 100 (Notable)
Rietpan	South Africa	Record daily precipitation	28.5 mm (1.1 in)	45 of 100 (Notable)
Jacobina	Brazil	Record daily precipitation	31.3 mm (1.2 in)	44 of 100 (Notable)
Etchojoa	Mexico	Record daily precipitation	74.4 mm (2.9 in)	44 of 100 (Notable)
Doornbult	South Africa	Record daily precipitation	26.5 mm (1.0 in)	44 of 100 (Notable)
Petrovskij Zavod	Russia	Record daily precipitation	26.0 mm (1.0 in)	43 of 100 (Notable)
Kamensk-Sahtinskij	Russia	Record daily precipitation	27.4 mm (1.1 in)	43 of 100 (Notable)
Andarai	Brazil	Record daily precipitation	38.6 mm (1.5 in)	42 of 100 (Notable)
Maracas	Brazil	Record daily precipitation	58.0 mm (2.3 in)	42 of 100 (Notable)
Ubaira (Areia)	Brazil	Record daily precipitation	43.6 mm (1.7 in)	42 of 100 (Notable)
Santiago	Mexico	Record daily precipitation	213.4 mm (8.4 in)	42 of 100 (Notable)
Navojoa	Mexico	Record daily precipitation	70.9 mm (2.8 in)	42 of 100 (Notable)
Taung	South Africa	Record daily precipitation	26.0 mm (1.0 in)	42 of 100 (Notable)
Stinkhoutboom	South Africa	Record daily precipitation	40.0 mm (1.6 in)	41 of 100 (Notable)
Panelas	Brazil	Record daily precipitation	30.0 mm (1.2 in)	40 of 100 (Notable)
Bradford	United Kingdom	Record daily precipitation	30.2 mm (1.2 in)	40 of 100 (Notable)
Kalaupapa 563	United States	Record daily precipitation	37.8 mm (1.5 in)	40 of 100 (Notable)
Montenegro	Brazil	Record daily precipitation	69.3 mm (2.7 in)	39 of 100 (Notable)
Liepaja	Latvia	Record low minimum temperature	-1.7 C (28.9 F)	39 of 100 (Notable)
Oestersund-Froesoen	Sweden	Record low minimum temperature	-5.3 C (22.5 F)	39 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record low minimum temperature	-2.3 C (27.9 F)	39 of 100 (Notable)
Molepolole	Botswana	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Porto	Brazil	Record daily precipitation	50.0 mm (2.0 in)	38 of 100 (Notable)
Drohobych	Ukraine	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Lake Spaulding	United States	Record high minimum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Twyfelspoort	South Africa	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Izmail	Ukraine	Record high minimum temperature	15.3 C (59.5 F)	37 of 100 (Notable)
Simao Dias (Anapolis)	Brazil	Record daily precipitation	29.0 mm (1.1 in)	36 of 100 (Notable)
Santa Gertrudis	Mexico	Record daily precipitation	198.4 mm (7.8 in)	35 of 100 (Notable)
Junsele	Sweden	Record low minimum temperature	-9.6 C (14.7 F)	35 of 100 (Notable)
Kentfield	United States	Record high minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Sacramento 5 ESE	United States	Record high minimum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Pine Rvr Dam	United States	Record high maximum temperature	30.0 C (86.0 F)	34 of 100 (Routine)
Ellendale	United States	Record high maximum temperature	33.3 C (91.9 F)	34 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record high maximum temperature	32.8 C (91.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

775 records

Records set or tied on 30 September 1976 by type: Highest daily maximum 150, Lowest daily maximum 99, Highest daily minimum 88, Lowest daily minimum 103, Heaviest daily rainfall 334, Heaviest daily snowfall 1.

Records on 30 September 1976 by type
Record type	Records
Highest daily maximum	150
Lowest daily maximum	99
Highest daily minimum	88
Lowest daily minimum	103
Heaviest daily rainfall	334
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 30 September 1976 by timescale: all-time 6, monthly 51, daily 718.

How Much Records Were Beaten By

654 broken records

Margins by which the 654 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 216.4. Ties are not counted.

Top 20 by Significance

30 September 1976

Top 20 records on 30 September 1976 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1976	Caduao, MX	all-time rain	319.8 mm (12.6 in)	183.9 mm (7.2 in)	14 years	67 of 100 (Major)
30 September 1976	Araci, BR	daily rain	52.4 mm (2.1 in)	48.8 mm (1.9 in)	54 years	62 of 100 (Major)
30 September 1976	Paripiranga, BR	monthly rain	70.0 mm (2.8 in)	22.3 mm (0.9 in)	36 years	61 of 100 (Major)
30 September 1976	Santa Terezinha, BR	monthly rain	56.2 mm (2.2 in)	36.2 mm (1.4 in)	21 years	60 of 100 (Major)
30 September 1976	Ipiau, BR	monthly rain	79.3 mm (3.1 in)	34.1 mm (1.3 in)	23 years	59 of 100 (Notable)
30 September 1976	Visalia, US	monthly rain	35.6 mm (1.4 in)	9.7 mm (0.38 in)	72 years	59 of 100 (Notable)
30 September 1976	Hopetown (Tnk), ZA	monthly rain	52.0 mm (2.0 in)	19.0 mm (0.7 in)	44 years	56 of 100 (Notable)
30 September 1976	Lajedinho, BR	daily rain	50.0 mm (2.0 in)	49.3 mm (1.9 in)	38 years	55 of 100 (Notable)
30 September 1976	Tucano, BR	daily rain	30.0 mm (1.2 in)	28.0 mm (1.1 in)	38 years	55 of 100 (Notable)
30 September 1976	Feira de Santana, BR	monthly rain	59.0 mm (2.3 in)	23.8 mm (0.9 in)	9 years	55 of 100 (Notable)
30 September 1976	Slurry, ZA	daily rain	59.0 mm (2.3 in)	41.7 mm (1.6 in)	48 years	55 of 100 (Notable)
30 September 1976	Porterville, US	monthly rain	39.4 mm (1.6 in)	9.2 mm (0.36 in)	72 years	55 of 100 (Notable)
30 September 1976	Moxoto, BR	monthly rain	74.2 mm (2.9 in)	47.0 mm (1.9 in)	0 years	54 of 100 (Notable)
30 September 1976	San Bartolo, MX	all-time rain	424.9 mm (16.7 in)	93.9 mm (3.7 in)	17 years	52 of 100 (Notable)
30 September 1976	Minas Nuevas, MX	daily rain	119.9 mm (4.7 in)	94.0 mm (3.7 in)	26 years	52 of 100 (Notable)
30 September 1976	Andarai, BR	daily rain	46.5 mm (1.8 in)	42.7 mm (1.7 in)	29 years	51 of 100 (Notable)
30 September 1976	Valente, BR	monthly rain	104.2 mm (4.1 in)	23.0 mm (0.9 in)	37 years	51 of 100 (Notable)
30 September 1976	Konstantinovsk, RU	daily rain	34.5 mm (1.4 in)	32.4 mm (1.3 in)	15 years	48 of 100 (Notable)
30 September 1976	Lozova, UA	daily rain	38.1 mm (1.5 in)	32.1 mm (1.3 in)	15 years	48 of 100 (Notable)
30 September 1976	Arizona, BR	daily rain	31.2 mm (1.2 in)	31.2 mm (1.2 in)	42 years	47 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

1806 to 1976

Records set or tied on this calendar date in each year from 1806 to 1976. 1976 had 775 records.

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

Records on 09-30 in each year
Year	Records
1806	1
1813	1
1817	1
1819	2
1834	1
1841	1
1842	1
1847	1
1853	1
1854	1
1855	1
1861	1
1862	1
1866	1
1868	2
1869	3
1870	1
1874	1
1877	1
1878	1
1881	5
1883	2
1885	1
1886	3
1887	1
1888	4
1889	1
1892	2
1893	3
1894	8
1895	5
1896	2
1897	3
1898	3
1899	12
1900	4
1901	11
1902	7
1903	9
1904	14
1905	25
1906	14
1907	16
1908	18
1909	10
1910	5
1911	47
1912	47
1913	10
1914	33
1915	84
1916	209
1917	19
1918	45
1919	28
1920	71
1921	61
1922	71
1923	183
1924	243
1925	211
1926	194
1927	486
1928	560
1929	181
1930	110
1931	225
1932	363
1933	437
1934	398
1935	209
1936	432
1937	417
1938	428
1939	371
1940	316
1941	482
1942	405
1943	404
1944	369
1945	889
1946	320
1947	433
1948	267
1949	366
1950	731
1951	597
1952	504
1953	1,136
1954	1,059
1955	406
1956	350
1957	663
1958	442
1959	1,159
1960	161
1961	618
1962	202
1963	818
1964	332
1965	459
1966	592
1967	859
1968	449
1969	465
1970	334
1971	1,359
1972	676
1973	407
1974	742
1975	686
1976	775
1977	870
1978	399
1979	479
1980	832
1981	688
1982	806
1983	1,102
1984	1,267
1985	1,892
1986	1,805
1987	649
1988	453
1989	713
1990	665
1991	949
1992	980
1993	988
1994	816
1995	1,061
1996	1,396
1997	729
1998	1,206
1999	1,144
2000	887
2001	699
2002	677
2003	1,079
2004	573
2005	761
2006	617
2007	841
2008	585
2009	826
2010	1,059
2011	1,258
2012	637
2013	634
2014	529
2015	997
2016	746
2017	404
2018	717
2019	2,192
2020	554
2021	823
2022	563
2023	1,012
2024	948
2025	559
2026	529

Download the Data

Data for records on 1976-09-30: 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 50	647
50 to 100	5
100 to 150	0
150 to 200	1
200 to 250	1