Weather Records on 30 September 1951

597 weather records were set or tied worldwide on 30 September 1951. Highest significance: Tiruvangadi, IN.

Key Facts for 30 September 1951

On 30 September 1951, 597 weather records were set or tied at long-record stations worldwide.
126 were record highs and 167 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 46 monthly and 549 daily.
Tiruvangadi set a monthly record daily precipitation of 228.6 mm (9.0 in) on 30 September 1951.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 439 records.

Record Map

597 stations

597 station records on 30 September 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tiruvangadi	India	Record daily precipitation	228.6 mm (9.0 in)	65 of 100 (Major)
Danger Point - Vrt.	South Africa	Record daily precipitation	88.3 mm (3.5 in)	63 of 100 (Major)
Ferrara	Italy	Record daily precipitation	85.2 mm (3.4 in)	61 of 100 (Major)
Dohne (Sar)	South Africa	Record daily precipitation	96.3 mm (3.8 in)	59 of 100 (Notable)
Port Alfred	South Africa	Record daily precipitation	81.3 mm (3.2 in)	58 of 100 (Notable)
Cullendale	South Africa	Record daily precipitation	53.3 mm (2.1 in)	58 of 100 (Notable)
Aberdeen (Tnk)	South Africa	Record daily precipitation	42.2 mm (1.7 in)	58 of 100 (Notable)
Fort Fordyce (Bos)	South Africa	Record daily precipitation	71.6 mm (2.8 in)	57 of 100 (Notable)
Bhatkal	India	Record daily precipitation	263.4 mm (10.4 in)	55 of 100 (Notable)
Alexandria (Pol)	South Africa	Record daily precipitation	67.6 mm (2.7 in)	55 of 100 (Notable)
Peddie (Mag)	South Africa	Record daily precipitation	54.6 mm (2.1 in)	54 of 100 (Notable)
Bredasdorp	South Africa	Record daily precipitation	77.2 mm (3.0 in)	53 of 100 (Notable)
Mulki	India	Record daily precipitation	180.3 mm (7.1 in)	52 of 100 (Notable)
Magenta	Australia	Record daily precipitation	38.1 mm (1.5 in)	51 of 100 (Notable)
Kendrew Estates	South Africa	Record daily precipitation	40.9 mm (1.6 in)	50 of 100 (Notable)
Granta	South Africa	Record daily precipitation	67.8 mm (2.7 in)	50 of 100 (Notable)
Umzonia (Rsv)	South Africa	Record daily precipitation	108.2 mm (4.3 in)	50 of 100 (Notable)
Lorraine	South Africa	Record daily precipitation	74.9 mm (2.9 in)	50 of 100 (Notable)
Lake Keechelus	United States	Record daily precipitation	44.5 mm (1.8 in)	50 of 100 (Notable)
Koup (Sar)	South Africa	Record daily precipitation	38.4 mm (1.5 in)	48 of 100 (Notable)
Fir Glen	South Africa	Record daily precipitation	58.4 mm (2.3 in)	48 of 100 (Notable)
Salem AP (McNary Field)	United States	Record daily precipitation	32.8 mm (1.3 in)	48 of 100 (Notable)
Loerie (Bos)	South Africa	Record daily precipitation	51.6 mm (2.0 in)	47 of 100 (Notable)
Lake Kachess	United States	Record daily precipitation	34.5 mm (1.4 in)	47 of 100 (Notable)
Manjeri	India	Record daily precipitation	144.8 mm (5.7 in)	46 of 100 (Notable)
Kamasin	India	Record daily precipitation	137.2 mm (5.4 in)	46 of 100 (Notable)
Boontjieskraal	South Africa	Record daily precipitation	43.9 mm (1.7 in)	46 of 100 (Notable)
Somerset East	South Africa	Record daily precipitation	61.2 mm (2.4 in)	46 of 100 (Notable)
Cascade Locks	United States	Record daily precipitation	64.3 mm (2.5 in)	46 of 100 (Notable)
Greatfish-Point Vrt	South Africa	Record daily precipitation	75.4 mm (3.0 in)	45 of 100 (Notable)
Nieu-Bethesda (Pol)	South Africa	Record daily precipitation	45.7 mm (1.8 in)	44 of 100 (Notable)
Tussenbeide	South Africa	Record daily precipitation	77.7 mm (3.1 in)	43 of 100 (Notable)
Great Brak River	South Africa	Record daily precipitation	34.8 mm (1.4 in)	43 of 100 (Notable)
Seymour (Mag)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Bantwal	India	Record daily precipitation	126.7 mm (5.0 in)	42 of 100 (Notable)
Klipplaat (Sar)	South Africa	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Grahamstown	South Africa	Record daily precipitation	53.3 mm (2.1 in)	42 of 100 (Notable)
Adelaide (Pol)	South Africa	Record daily precipitation	33.8 mm (1.3 in)	42 of 100 (Notable)
Syfergat (Sar)	South Africa	Record daily precipitation	52.1 mm (2.1 in)	41 of 100 (Notable)
Headworks Portland Wtr B	United States	Record daily precipitation	55.4 mm (2.2 in)	41 of 100 (Notable)
Baindur	India	Record daily precipitation	284.0 mm (11.2 in)	40 of 100 (Notable)
Molteno (Mun)	South Africa	Record daily precipitation	74.7 mm (2.9 in)	40 of 100 (Notable)
Ft Pierce	United States	Record daily precipitation	105.4 mm (4.1 in)	40 of 100 (Notable)
Mangalore	India	Record daily precipitation	109.0 mm (4.3 in)	39 of 100 (Notable)
Crescent City 3 NNW	United States	Record daily precipitation	40.1 mm (1.6 in)	39 of 100 (Notable)
Kubusie (Bos)	South Africa	Record daily precipitation	88.9 mm (3.5 in)	38 of 100 (Notable)
Mill Holme	South Africa	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Bikin	Russia	Record daily precipitation	25.5 mm (1.0 in)	37 of 100 (Notable)
Worcester	South Africa	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
De Vlei "de Kruis"	South Africa	Record daily precipitation	47.2 mm (1.9 in)	37 of 100 (Notable)
Huxley	South Africa	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Falls City 2 SSW	United States	Record daily precipitation	39.4 mm (1.6 in)	35 of 100 (Notable)
Satyavedu	India	Record daily precipitation	69.3 mm (2.7 in)	34 of 100 (Routine)
Brookings	United States	Record daily precipitation	83.1 mm (3.3 in)	34 of 100 (Routine)
Sunticoppa	India	Record daily precipitation	91.4 mm (3.6 in)	33 of 100 (Routine)
Zoetendals Vallei	South Africa	Record daily precipitation	83.8 mm (3.3 in)	33 of 100 (Routine)
Longvale	South Africa	Record daily precipitation	42.9 mm (1.7 in)	33 of 100 (Routine)
Kei Road (Pol)	South Africa	Record daily precipitation	59.7 mm (2.4 in)	33 of 100 (Routine)
Princess Anne	United States	Record low minimum temperature	-0.6 C (30.9 F)	33 of 100 (Routine)
Flemington 5 NNW	United States	Record low minimum temperature	-2.8 C (27.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

597 records

Records set or tied on 30 September 1951 by type: Highest daily maximum 29, Lowest daily maximum 55, Highest daily minimum 97, Lowest daily minimum 112, Heaviest daily rainfall 304.

Records on 30 September 1951 by type
Record type	Records
Highest daily maximum	29
Lowest daily maximum	55
Highest daily minimum	97
Lowest daily minimum	112
Heaviest daily rainfall	304
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 September 1951 by timescale: all-time 2, monthly 46, daily 549.

How Much Records Were Beaten By

462 broken records

Margins by which the 462 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 104.6. Ties are not counted.

Top 20 by Significance

30 September 1951

Top 20 records on 30 September 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1951	Tiruvangadi, IN	monthly rain	228.6 mm (9.0 in)	90.9 mm (3.6 in)	33 years	65 of 100 (Major)
30 September 1951	Danger Point - Vrt., ZA	monthly rain	88.3 mm (3.5 in)	32.4 mm (1.3 in)	33 years	63 of 100 (Major)
30 September 1951	Ferrara, IT	monthly rain	85.2 mm (3.4 in)	24.2 mm (1.0 in)	67 years	61 of 100 (Major)
30 September 1951	Dohne (Sar), ZA	daily rain	96.3 mm (3.8 in)	53.1 mm (2.1 in)	40 years	59 of 100 (Notable)
30 September 1951	Port Alfred, ZA	daily rain	81.3 mm (3.2 in)	68.3 mm (2.7 in)	37 years	58 of 100 (Notable)
30 September 1951	Cullendale, ZA	daily rain	53.3 mm (2.1 in)	43.4 mm (1.7 in)	40 years	58 of 100 (Notable)
30 September 1951	Aberdeen (Tnk), ZA	daily rain	42.2 mm (1.7 in)	30.8 mm (1.2 in)	68 years	58 of 100 (Notable)
30 September 1951	Fort Fordyce (Bos), ZA	daily rain	71.6 mm (2.8 in)	46.2 mm (1.8 in)	40 years	57 of 100 (Notable)
30 September 1951	Bhatkal, IN	monthly rain	263.4 mm (10.4 in)	104.6 mm (4.1 in)	1 year	55 of 100 (Notable)
30 September 1951	Alexandria (Pol), ZA	daily rain	67.6 mm (2.7 in)	40.9 mm (1.6 in)	40 years	55 of 100 (Notable)
30 September 1951	Peddie (Mag), ZA	daily rain	54.6 mm (2.1 in)	40.6 mm (1.6 in)	45 years	54 of 100 (Notable)
30 September 1951	Bredasdorp, ZA	monthly rain	77.2 mm (3.0 in)	25.1 mm (1.0 in)	7 years	53 of 100 (Notable)
30 September 1951	Mulki, IN	monthly rain	180.3 mm (7.1 in)	41.4 mm (1.6 in)	49 years	52 of 100 (Notable)
30 September 1951	Magenta, AU	daily rain	38.1 mm (1.5 in)	30.0 mm (1.2 in)	20 years	51 of 100 (Notable)
30 September 1951	Kendrew Estates, ZA	daily rain	40.9 mm (1.6 in)	31.0 mm (1.2 in)	56 years	50 of 100 (Notable)
30 September 1951	Granta, ZA	daily rain	67.8 mm (2.7 in)	44.9 mm (1.8 in)	24 years	50 of 100 (Notable)
30 September 1951	Umzonia (Rsv), ZA	daily rain	108.2 mm (4.3 in)	90.2 mm (3.6 in)	24 years	50 of 100 (Notable)
30 September 1951	Lorraine, ZA	all-time rain	74.9 mm (2.9 in)	13.7 mm (0.5 in)	27 years	50 of 100 (Notable)
30 September 1951	Lake Keechelus, US	daily rain	44.5 mm (1.8 in)	29.3 mm (1.2 in)	40 years	50 of 100 (Notable)
30 September 1951	Koup (Sar), ZA	monthly rain	38.4 mm (1.5 in)	18.3 mm (0.7 in)	7 years	48 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 1951

Records set or tied on this calendar date in each year from 1806 to 1951. 1951 had 597 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	523

Download the Data

Data for records on 1951-09-30: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	405
20 to 40	39
40 to 60	12
60 to 80	3
80 to 100	2
100 to 120	1