Weather Records on 18 September 1956

587 weather records were set or tied worldwide on 18 September 1956. Highest significance: Komga (Pol), ZA.

Key Facts for 18 September 1956

On 18 September 1956, 587 weather records were set or tied at long-record stations worldwide.
228 were record highs and 111 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 578 daily.
Komga (Pol) set a daily record precipitation of 79.0 mm (3.1 in) on 18 September 1956.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 420 records.

Record Map

587 stations

587 station records on 18 September 1956 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1956: highest significance records shown on the map
Station	Country	Type	Value	Significance
Komga (Pol)	South Africa	Record daily precipitation	79.0 mm (3.1 in)	66 of 100 (Major)
Cwebe	South Africa	Record daily precipitation	143.0 mm (5.6 in)	60 of 100 (Major)
Huxley	South Africa	Record daily precipitation	53.6 mm (2.1 in)	57 of 100 (Notable)
Qacu (Bos)	South Africa	Record daily precipitation	54.6 mm (2.1 in)	56 of 100 (Notable)
Alicedale	South Africa	Record daily precipitation	51.5 mm (2.0 in)	55 of 100 (Notable)
Mount Coke (Bos)	South Africa	Record daily precipitation	66.6 mm (2.6 in)	52 of 100 (Notable)
Frankfort C/K	South Africa	Record daily precipitation	60.0 mm (2.4 in)	52 of 100 (Notable)
Springvalley	South Africa	Record daily precipitation	39.5 mm (1.6 in)	52 of 100 (Notable)
Kubusie (Bos)	South Africa	Record daily precipitation	60.0 mm (2.4 in)	51 of 100 (Notable)
Butterworth (Tnk)	South Africa	Record daily precipitation	62.5 mm (2.5 in)	49 of 100 (Notable)
Pirie (Bos)	South Africa	Record daily precipitation	54.0 mm (2.1 in)	48 of 100 (Notable)
Granta	South Africa	Record daily precipitation	70.0 mm (2.8 in)	48 of 100 (Notable)
Thomas River (Sar)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	48 of 100 (Notable)
Glen Roy	South Africa	Record daily precipitation	39.0 mm (1.5 in)	47 of 100 (Notable)
Humansdorp (Pol)	South Africa	Record daily precipitation	58.0 mm (2.3 in)	45 of 100 (Notable)
Hopewell	South Africa	Record daily precipitation	124.0 mm (4.9 in)	45 of 100 (Notable)
Steynsburg	South Africa	Record daily precipitation	25.0 mm (1.0 in)	45 of 100 (Notable)
Nqamakwe (Tnk)	South Africa	Record daily precipitation	41.5 mm (1.6 in)	44 of 100 (Notable)
Cheviot Fells	South Africa	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Nagappattinam	India	Record daily precipitation	63.8 mm (2.5 in)	42 of 100 (Notable)
Palmer Estate	South Africa	Record daily precipitation	43.0 mm (1.7 in)	42 of 100 (Notable)
Tellico Plains	United States	Record daily precipitation	47.2 mm (1.9 in)	42 of 100 (Notable)
Haveri	India	Record daily precipitation	64.8 mm (2.6 in)	41 of 100 (Notable)
Hirekerur	India	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Knysna (Tnk)	South Africa	Record daily precipitation	35.5 mm (1.4 in)	41 of 100 (Notable)
Heritage	South Africa	Record daily precipitation	34.0 mm (1.3 in)	41 of 100 (Notable)
Dontsa	South Africa	Record daily precipitation	46.5 mm (1.8 in)	40 of 100 (Notable)
Kentani (Bos)	South Africa	Record daily precipitation	81.0 mm (3.2 in)	40 of 100 (Notable)
Fort Fordyce (Bos)	South Africa	Record daily precipitation	38.5 mm (1.5 in)	39 of 100 (Notable)
Isidinge (Bos)	South Africa	Record daily precipitation	63.5 mm (2.5 in)	39 of 100 (Notable)
Magadi	India	Record daily precipitation	80.0 mm (3.1 in)	38 of 100 (Notable)
Sulitjelma	Norway	Record daily precipitation	40.3 mm (1.6 in)	38 of 100 (Notable)
Leliekloof	South Africa	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Willowvale (Tnk)	South Africa	Record daily precipitation	79.5 mm (3.1 in)	38 of 100 (Notable)
Barrage Temiscamingue	Canada	Record daily precipitation	46.2 mm (1.8 in)	37 of 100 (Notable)
Albertvale	South Africa	Record daily precipitation	28.5 mm (1.1 in)	37 of 100 (Notable)
Sira	India	Record daily precipitation	99.1 mm (3.9 in)	36 of 100 (Notable)
Ambur	India	Record daily precipitation	80.0 mm (3.1 in)	35 of 100 (Notable)
Kologha (Bos)	South Africa	Record daily precipitation	43.0 mm (1.7 in)	35 of 100 (Notable)
Elliotdale (Tnk)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	35 of 100 (Notable)
Eenbult	South Africa	Record daily precipitation	29.5 mm (1.2 in)	35 of 100 (Notable)
Den Haag	South Africa	Record daily precipitation	26.1 mm (1.0 in)	35 of 100 (Notable)
Kunigal	India	Record daily precipitation	77.5 mm (3.1 in)	34 of 100 (Routine)
Teziutlan	Mexico	Record daily precipitation	150.4 mm (5.9 in)	33 of 100 (Routine)
Berlin (Sar)	South Africa	Record daily precipitation	49.0 mm (1.9 in)	33 of 100 (Routine)
Grootdam	South Africa	Record daily precipitation	27.2 mm (1.1 in)	33 of 100 (Routine)
N'Dabakazi (Sar)	South Africa	Record daily precipitation	49.0 mm (1.9 in)	32 of 100 (Routine)
Adamshoop	South Africa	Record daily precipitation	25.2 mm (1.0 in)	32 of 100 (Routine)
Grahamstown	South Africa	Record daily precipitation	64.0 mm (2.5 in)	31 of 100 (Routine)
Buxton (Bos)	South Africa	Record daily precipitation	31.5 mm (1.2 in)	31 of 100 (Routine)
Wolfridge (Bos)	South Africa	Record daily precipitation	40.3 mm (1.6 in)	31 of 100 (Routine)
Rabula (Bos)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	31 of 100 (Routine)
Cegcuana (Bos)	South Africa	Record daily precipitation	72.5 mm (2.9 in)	31 of 100 (Routine)
Emgcewe (Bos)	South Africa	Record daily precipitation	64.7 mm (2.5 in)	31 of 100 (Routine)
Westfalia	South Africa	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Tucson WFO	United States	Record high maximum temperature	42.2 C (108.0 F)	31 of 100 (Routine)
Durango	United States	Record high maximum temperature	32.8 C (91.0 F)	31 of 100 (Routine)
St Petersburg	United States	Record low minimum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
White River Junction	United States	Record daily precipitation	37.6 mm (1.5 in)	31 of 100 (Routine)
Balfour (Pol)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)

Counts by Type and Timescale

587 records

Records set or tied on 18 September 1956 by type: Highest daily maximum 192, Lowest daily maximum 69, Highest daily minimum 36, Lowest daily minimum 42, Heaviest daily rainfall 246, Heaviest daily snowfall 2.

Records on 18 September 1956 by type
Record type	Records
Highest daily maximum	192
Lowest daily maximum	69
Highest daily minimum	36
Lowest daily minimum	42
Heaviest daily rainfall	246
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 18 September 1956 by timescale: all-time 0, monthly 9, daily 578.

How Much Records Were Beaten By

469 broken records

Margins by which the 469 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 107.4. Ties are not counted.

Top 20 by Significance

18 September 1956

Top 20 records on 18 September 1956 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1956	Komga (Pol), ZA	daily rain	79.0 mm (3.1 in)	54.1 mm (2.1 in)	63 years	66 of 100 (Major)
18 September 1956	Cwebe, ZA	daily rain	143.0 mm (5.6 in)	107.4 mm (4.2 in)	50 years	60 of 100 (Major)
18 September 1956	Huxley, ZA	daily rain	53.6 mm (2.1 in)	36.8 mm (1.4 in)	43 years	57 of 100 (Notable)
18 September 1956	Qacu (Bos), ZA	daily rain	54.6 mm (2.1 in)	34.3 mm (1.4 in)	43 years	56 of 100 (Notable)
18 September 1956	Alicedale, ZA	daily rain	51.5 mm (2.0 in)	32.7 mm (1.3 in)	63 years	55 of 100 (Notable)
18 September 1956	Mount Coke (Bos), ZA	daily rain	66.6 mm (2.6 in)	46.3 mm (1.8 in)	50 years	52 of 100 (Notable)
18 September 1956	Frankfort C/K, ZA	daily rain	60.0 mm (2.4 in)	52.4 mm (2.1 in)	29 years	52 of 100 (Notable)
18 September 1956	Springvalley, ZA	daily rain	39.5 mm (1.6 in)	39.5 mm (1.6 in)	40 years	52 of 100 (Notable)
18 September 1956	Kubusie (Bos), ZA	daily rain	60.0 mm (2.4 in)	35.9 mm (1.4 in)	43 years	51 of 100 (Notable)
18 September 1956	Butterworth (Tnk), ZA	daily rain	62.5 mm (2.5 in)	53.6 mm (2.1 in)	12 years	49 of 100 (Notable)
18 September 1956	Pirie (Bos), ZA	daily rain	54.0 mm (2.1 in)	26.8 mm (1.1 in)	63 years	48 of 100 (Notable)
18 September 1956	Granta, ZA	daily rain	70.0 mm (2.8 in)	63.9 mm (2.5 in)	16 years	48 of 100 (Notable)
18 September 1956	Thomas River (Sar), ZA	daily rain	29.5 mm (1.2 in)	18.6 mm (0.7 in)	74 years	48 of 100 (Notable)
18 September 1956	Glen Roy, ZA	daily rain	39.0 mm (1.5 in)	32.9 mm (1.3 in)	24 years	47 of 100 (Notable)
18 September 1956	Humansdorp (Pol), ZA	daily rain	58.0 mm (2.3 in)	26.5 mm (1.0 in)	63 years	45 of 100 (Notable)
18 September 1956	Hopewell, ZA	monthly rain	124.0 mm (4.9 in)	33.3 mm (1.3 in)	30 years	45 of 100 (Notable)
18 September 1956	Steynsburg, ZA	daily rain	25.0 mm (1.0 in)	17.1 mm (0.7 in)	67 years	45 of 100 (Notable)
18 September 1956	Nqamakwe (Tnk), ZA	daily rain	41.5 mm (1.6 in)	33.4 mm (1.3 in)	12 years	44 of 100 (Notable)
18 September 1956	Cheviot Fells, ZA	daily rain	34.0 mm (1.3 in)	17.2 mm (0.7 in)	64 years	43 of 100 (Notable)
18 September 1956	Nagappattinam, IN	daily rain	63.8 mm (2.5 in)	42.2 mm (1.7 in)	29 years	42 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 1956

Records set or tied on this calendar date in each year from 1803 to 1956. 1956 had 587 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 1956-09-18: 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	414
20 to 40	42
40 to 60	10
60 to 80	2
80 to 100	0
100 to 120	1