Weather Records on 20 September 1956

985 weather records were set or tied worldwide on 20 September 1956. Highest significance: Sonaula, IN.

Key Facts for 20 September 1956

On 20 September 1956, 985 weather records were set or tied at long-record stations worldwide.
233 were record highs and 473 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 24 monthly and 961 daily.
Sonaula set a daily record precipitation of 110.5 mm (4.4 in) on 20 September 1956.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 439 records.

Record Map

985 stations

985 station records on 20 September 1956 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1956: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sonaula	India	Record daily precipitation	110.5 mm (4.4 in)	47 of 100 (Notable)
Witelsbos (Bos)	South Africa	Record daily precipitation	59.2 mm (2.3 in)	47 of 100 (Notable)
Sfax El-Maou	Tunisia	Record daily precipitation	41.2 mm (1.6 in)	46 of 100 (Notable)
Swaziland Ranch-Homest	Swaziland	Record daily precipitation	33.0 mm (1.3 in)	46 of 100 (Notable)
Umzimkulu (Tnk)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	45 of 100 (Notable)
Bloukrans (Bos)	South Africa	Record daily precipitation	87.0 mm (3.4 in)	41 of 100 (Notable)
Srungavarapukota	India	Record daily precipitation	86.9 mm (3.4 in)	40 of 100 (Notable)
Sheohar	India	Record daily precipitation	162.6 mm (6.4 in)	40 of 100 (Notable)
Alexandria (Bos)	South Africa	Record daily precipitation	101.0 mm (4.0 in)	40 of 100 (Notable)
Elliot	South Africa	Record daily precipitation	27.0 mm (1.1 in)	39 of 100 (Notable)
Stratford	Canada	Record low maximum temperature	7.2 C (45.0 F)	38 of 100 (Notable)
Higgins Lake	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Belleville	Canada	Record low maximum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Green Bay	United States	Record low minimum temperature	-2.8 C (27.0 F)	35 of 100 (Notable)
The Grange, Umzimkul	South Africa	Record daily precipitation	31.0 mm (1.2 in)	34 of 100 (Routine)
Fig Tree	South Africa	Record daily precipitation	42.0 mm (1.7 in)	34 of 100 (Routine)
Stuart Town	Australia	Record daily precipitation	35.6 mm (1.4 in)	33 of 100 (Routine)
Kolhapur	India	Record daily precipitation	74.4 mm (2.9 in)	33 of 100 (Routine)
Groenkloof	South Africa	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Manina (Bos)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	33 of 100 (Routine)
Raghopur	India	Record daily precipitation	101.6 mm (4.0 in)	32 of 100 (Routine)
Koregaon	India	Record daily precipitation	61.7 mm (2.4 in)	32 of 100 (Routine)
Westfield 2 SSE	United States	Record low minimum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
State College	United States	Record low maximum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Stanley Wwtp	United States	Record low minimum temperature	-7.2 C (19.0 F)	32 of 100 (Routine)
St Andrews	Canada	Record low maximum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Collingwood	Canada	Record low minimum temperature	0.0 C (32.0 F)	30 of 100 (Routine)
Parry Sound	Canada	Record low maximum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
Hukeri	India	Record daily precipitation	78.7 mm (3.1 in)	30 of 100 (Routine)
Barrage Temiscamingue	Canada	Record low maximum temperature	3.9 C (39.0 F)	29 of 100 (Routine)
Ageon	India	Record daily precipitation	92.5 mm (3.6 in)	29 of 100 (Routine)
Azimganj	India	Record daily precipitation	97.8 mm (3.9 in)	29 of 100 (Routine)
Hogsback (Bos)	South Africa	Record daily precipitation	37.5 mm (1.5 in)	29 of 100 (Routine)
Tuba City	United States	Record high maximum temperature	36.7 C (98.1 F)	29 of 100 (Routine)
Midland 2	United States	Record low maximum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Johnstown	United States	Record low maximum temperature	12.2 C (54.0 F)	29 of 100 (Routine)
Ridgetown	Canada	Record low maximum temperature	11.7 C (53.1 F)	28 of 100 (Routine)
Beloit	United States	Record low minimum temperature	-1.1 C (30.0 F)	28 of 100 (Routine)
Dodgeville Wwtp	United States	Record low minimum temperature	-1.7 C (28.9 F)	28 of 100 (Routine)
Orillia	Canada	Record low maximum temperature	7.8 C (46.0 F)	27 of 100 (Routine)
St Fereol	Canada	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Sycamore	United States	Record low minimum temperature	-2.2 C (28.0 F)	27 of 100 (Routine)
Cheboygan	United States	Record low maximum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Saint Johns	United States	Record low maximum temperature	12.2 C (54.0 F)	27 of 100 (Routine)
Mexia	United States	Record high maximum temperature	40.6 C (105.1 F)	27 of 100 (Routine)
Huntington 1	United States	Record low maximum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
Pickens 1	United States	Record low maximum temperature	12.2 C (54.0 F)	27 of 100 (Routine)
Madison Wb City	United States	Record low minimum temperature	1.1 C (34.0 F)	27 of 100 (Routine)
Oconto 4 W	United States	Record low minimum temperature	-2.8 C (27.0 F)	27 of 100 (Routine)
Oshkosh	United States	Record low minimum temperature	-1.7 C (28.9 F)	27 of 100 (Routine)
Pine River 3 NE	United States	Record low minimum temperature	-2.8 C (27.0 F)	27 of 100 (Routine)
Waukesha Wwtp	United States	Record low minimum temperature	-1.1 C (30.0 F)	27 of 100 (Routine)
Lindsay	Canada	Record low minimum temperature	-1.1 C (30.0 F)	26 of 100 (Routine)
Mahackala	Russia	Record low maximum temperature	13.6 C (56.5 F)	26 of 100 (Routine)
Bushy Vales, Margate	South Africa	Record daily precipitation	40.0 mm (1.6 in)	26 of 100 (Routine)
Ft Collins	United States	Record high maximum temperature	34.4 C (93.9 F)	26 of 100 (Routine)
Aurora Water	United States	Record low minimum temperature	-1.7 C (28.9 F)	26 of 100 (Routine)
Palestine	United States	Record low minimum temperature	1.7 C (35.1 F)	26 of 100 (Routine)
Rockford	United States	Record low minimum temperature	0.0 C (32.0 F)	26 of 100 (Routine)
Annapolis US Naval Aca	United States	Record low maximum temperature	16.7 C (62.1 F)	26 of 100 (Routine)

Counts by Type and Timescale

985 records

Records set or tied on 20 September 1956 by type: Highest daily maximum 190, Lowest daily maximum 216, Highest daily minimum 43, Lowest daily minimum 257, Heaviest daily rainfall 264, Heaviest daily snowfall 15.

Records on 20 September 1956 by type
Record type	Records
Highest daily maximum	190
Lowest daily maximum	216
Highest daily minimum	43
Lowest daily minimum	257
Heaviest daily rainfall	264
Heaviest daily snowfall	15
Deepest snow cover	0

Records on 20 September 1956 by timescale: all-time 0, monthly 24, daily 961.

How Much Records Were Beaten By

788 broken records

Margins by which the 788 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 114.3. Ties are not counted.

Top 20 by Significance

20 September 1956

Top 20 records on 20 September 1956 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1956	Sonaula, IN	daily rain	110.5 mm (4.4 in)	91.4 mm (3.6 in)	14 years	47 of 100 (Notable)
20 September 1956	Witelsbos (Bos), ZA	daily rain	59.2 mm (2.3 in)	42.7 mm (1.7 in)	41 years	47 of 100 (Notable)
20 September 1956	Sfax El-Maou, TN	daily rain	41.2 mm (1.6 in)	36.4 mm (1.4 in)	49 years	46 of 100 (Notable)
20 September 1956	Swaziland Ranch-Homest, SZ	daily rain	33.0 mm (1.3 in)	33.0 mm (1.3 in)	40 years	46 of 100 (Notable)
20 September 1956	Umzimkulu (Tnk), ZA	daily rain	34.5 mm (1.4 in)	21.0 mm (0.8 in)	55 years	45 of 100 (Notable)
20 September 1956	Bloukrans (Bos), ZA	daily rain	87.0 mm (3.4 in)	44.6 mm (1.8 in)	31 years	41 of 100 (Notable)
20 September 1956	Srungavarapukota, IN	daily rain	86.9 mm (3.4 in)	59.2 mm (2.3 in)	7 years	40 of 100 (Notable)
20 September 1956	Sheohar, IN	daily rain	162.6 mm (6.4 in)	114.3 mm (4.5 in)	14 years	40 of 100 (Notable)
20 September 1956	Alexandria (Bos), ZA	daily rain	101.0 mm (4.0 in)	80.2 mm (3.2 in)	8 years	40 of 100 (Notable)
20 September 1956	Elliot, ZA	daily rain	27.0 mm (1.1 in)	21.9 mm (0.9 in)	43 years	39 of 100 (Notable)
20 September 1956	Stratford, CA	daily low max	7.2 C (45.0 F)	2.2 C (4.0 F)	84 years	38 of 100 (Notable)
20 September 1956	Higgins Lake, US	monthly snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	47 years	38 of 100 (Notable)
20 September 1956	Belleville, CA	daily low max	10.0 C (50.0 F)	0.6 C (1.1 F)	84 years	35 of 100 (Notable)
20 September 1956	Green Bay, US	daily low min	-2.8 C (27.0 F)	4.5 C (8.1 F)	65 years	35 of 100 (Notable)
20 September 1956	The Grange, Umzimkul, ZA	daily rain	31.0 mm (1.2 in)	22.6 mm (0.9 in)	12 years	34 of 100 (Routine)
20 September 1956	Fig Tree, ZA	daily rain	42.0 mm (1.7 in)	33.1 mm (1.3 in)	8 years	34 of 100 (Routine)
20 September 1956	Stuart Town, AU	daily rain	35.6 mm (1.4 in)	14.8 mm (0.6 in)	41 years	33 of 100 (Routine)
20 September 1956	Kolhapur, IN	daily rain	74.4 mm (2.9 in)	19.8 mm (0.8 in)	32 years	33 of 100 (Routine)
20 September 1956	Groenkloof, ZA	daily rain	32.5 mm (1.3 in)	31.2 mm (1.2 in)	8 years	33 of 100 (Routine)
20 September 1956	Manina (Bos), ZA	daily rain	45.0 mm (1.8 in)	31.3 mm (1.2 in)	15 years	33 of 100 (Routine)

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

1812 to 1956

Records set or tied on this calendar date in each year from 1812 to 1956. 1956 had 985 records.

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

Records on 09-20 in each year
Year	Records
1812	1
1837	1
1840	1
1844	1
1848	2
1851	1
1852	1
1854	2
1855	1
1856	2
1859	2
1860	1
1862	1
1870	1
1871	2
1882	2
1883	1
1884	1
1886	2
1887	1
1888	2
1889	8
1891	4
1893	5
1894	1
1895	2
1896	1
1897	16
1898	4
1899	1
1900	2
1901	3
1902	3
1903	3
1904	12
1905	8
1906	22
1907	11
1908	24
1909	10
1910	8
1911	21
1912	34
1913	48
1914	28
1915	239
1916	28
1917	100
1918	59
1919	55
1920	64
1921	40
1922	52
1923	249
1924	329
1925	330
1926	129
1927	169
1928	144
1929	373
1930	102
1931	564
1932	270
1933	223
1934	349
1935	201
1936	133
1937	385
1938	506
1939	312
1940	591
1941	582
1942	436
1943	419
1944	466
1945	406
1946	766
1947	460
1948	454
1949	268
1950	435
1951	267
1952	434
1953	479
1954	628
1955	625
1956	985
1957	514
1958	410
1959	489
1960	352
1961	384
1962	707
1963	290
1964	482
1965	1,180
1966	414
1967	449
1968	617
1969	604
1970	591
1971	884
1972	582
1973	569
1974	771
1975	527
1976	375
1977	776
1978	1,216
1979	767
1980	567
1981	979
1982	911
1983	1,958
1984	895
1985	730
1986	743
1987	856
1988	698
1989	968
1990	743
1991	1,835
1992	718
1993	1,031
1994	788
1995	1,374
1996	1,077
1997	1,282
1998	1,157
1999	923
2000	908
2001	821
2002	845
2003	910
2004	1,156
2005	960
2006	732
2007	645
2008	648
2009	715
2010	1,497
2011	650
2012	549
2013	595
2014	577
2015	439
2016	778
2017	920
2018	1,020
2019	835
2020	630
2021	565
2022	786
2023	482
2024	596
2025	877
2026	682

Download the Data

Data for records on 1956-09-20: 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	752
20 to 40	26
40 to 60	7
60 to 80	0
80 to 100	2
100 to 120	1