Weather Records on 20 September 1927

169 weather records were set or tied worldwide on 20 September 1927. Highest significance: Setauket Strong, US.

Key Facts for 20 September 1927

On 20 September 1927, 169 weather records were set or tied at long-record stations worldwide.
24 were record highs and 118 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 168 daily.
Setauket Strong set a daily record precipitation of 57.9 mm (2.3 in) on 20 September 1927.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 444 records.

Record Map

169 stations

169 station records on 20 September 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Setauket Strong	United States	Record daily precipitation	57.9 mm (2.3 in)	46 of 100 (Notable)
Armagh	United Kingdom	Record daily precipitation	39.9 mm (1.6 in)	28 of 100 (Routine)
Battleford	Canada	Record low minimum temperature	-3.9 C (25.0 F)	23 of 100 (Routine)
Old Mission	United States	Record daily precipitation	26.9 mm (1.1 in)	23 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record daily precipitation	23.8 mm (0.9 in)	20 of 100 (Routine)
Orenburg	Russia	Record daily precipitation	22.7 mm (0.9 in)	20 of 100 (Routine)
Simferopol	Ukraine	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Syktyvkar	Russia	Record daily precipitation	9.5 mm (0.37 in)	20 of 100 (Routine)
Perm	Russia	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Durham	United Kingdom	Record daily precipitation	26.7 mm (1.1 in)	19 of 100 (Routine)
Kiev	Ukraine	Record daily precipitation	15.6 mm (0.6 in)	19 of 100 (Routine)
Charlevoix	United States	Record daily precipitation	21.6 mm (0.9 in)	19 of 100 (Routine)
Miles City	United States	Record low minimum temperature	-4.4 C (24.1 F)	19 of 100 (Routine)
Robe Comparison	Australia	Record high maximum temperature	21.3 C (70.3 F)	18 of 100 (Routine)
Boulia Airport	Australia	Record high maximum temperature	38.3 C (100.9 F)	17 of 100 (Routine)
Charlottetown	Canada	Record daily precipitation	26.2 mm (1.0 in)	17 of 100 (Routine)
Astana	Kazakhstan	Record low minimum temperature	-2.7 C (27.1 F)	17 of 100 (Routine)
Kjobli I Snaasa	Norway	Record daily precipitation	19.2 mm (0.8 in)	17 of 100 (Routine)
Vysnij Volocek	Russia	Record daily precipitation	14.6 mm (0.6 in)	17 of 100 (Routine)
Tot-Ma	Russia	Record daily precipitation	10.6 mm (0.4 in)	17 of 100 (Routine)
Oelrichs	United States	Record low minimum temperature	-6.7 C (19.9 F)	17 of 100 (Routine)
Storlien	Sweden	Record daily precipitation	24.6 mm (1.0 in)	16 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	6.5 C (43.7 F)	16 of 100 (Routine)
Wray	United States	Record low minimum temperature	-2.2 C (28.0 F)	16 of 100 (Routine)
Austin	United States	Record low maximum temperature	19.4 C (66.9 F)	16 of 100 (Routine)
Great Falls	United States	Record daily precipitation	32.5 mm (1.3 in)	15 of 100 (Routine)
Fillmore	United States	Record high minimum temperature	17.8 C (64.0 F)	15 of 100 (Routine)
Olympia Priest Pt Park	United States	Record high maximum temperature	28.3 C (82.9 F)	15 of 100 (Routine)
Clarksville	United States	Record daily precipitation	26.7 mm (1.1 in)	14 of 100 (Routine)
Alta	United States	Record low maximum temperature	8.9 C (48.0 F)	13 of 100 (Routine)
Clarinda	United States	Record low maximum temperature	16.1 C (61.0 F)	13 of 100 (Routine)
Le Mars	United States	Record low maximum temperature	10.6 C (51.1 F)	13 of 100 (Routine)
Glasgow #2	United States	Record low minimum temperature	-5.0 C (23.0 F)	13 of 100 (Routine)
Lancaster 4 WSW	United States	Record low maximum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Oconto 4 W	United States	Record low maximum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Williston Sloulin Fld	United States	Record low minimum temperature	-1.1 C (30.0 F)	13 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record daily precipitation	7.0 mm (0.28 in)	12 of 100 (Routine)
Independence	United States	Record high maximum temperature	33.9 C (93.0 F)	12 of 100 (Routine)
Carroll	United States	Record low maximum temperature	12.2 C (54.0 F)	12 of 100 (Routine)
Cedar Rapids #1	United States	Record low maximum temperature	14.4 C (57.9 F)	12 of 100 (Routine)
Petoskey	United States	Record daily precipitation	22.4 mm (0.9 in)	12 of 100 (Routine)
Bird Island	United States	Record low maximum temperature	10.6 C (51.1 F)	12 of 100 (Routine)
Hay Springs	United States	Record low minimum temperature	-7.2 C (19.0 F)	12 of 100 (Routine)
Lodgepole	United States	Record low minimum temperature	-1.7 C (28.9 F)	12 of 100 (Routine)
Norfolk	United States	Record low maximum temperature	10.6 C (51.1 F)	12 of 100 (Routine)
W Pt	United States	Record low minimum temperature	0.0 C (32.0 F)	12 of 100 (Routine)
Las Vegas 2 NW	United States	Record low maximum temperature	18.3 C (64.9 F)	12 of 100 (Routine)
Edenton	United States	Record daily precipitation	35.1 mm (1.4 in)	12 of 100 (Routine)
Salisbury	United States	Record daily precipitation	44.5 mm (1.8 in)	12 of 100 (Routine)
Bucyrus	United States	Record low maximum temperature	16.1 C (61.0 F)	12 of 100 (Routine)
Howard	United States	Record low maximum temperature	11.1 C (52.0 F)	12 of 100 (Routine)
Richmond Post Office	Australia	Record high maximum temperature	37.5 C (99.5 F)	11 of 100 (Routine)
Swift Current	Canada	Record low minimum temperature	-6.1 C (21.0 F)	11 of 100 (Routine)
Minnedosa	Canada	Record low maximum temperature	8.3 C (46.9 F)	11 of 100 (Routine)
Syktyvkar	Russia	Record low minimum temperature	-1.7 C (28.9 F)	11 of 100 (Routine)
Novorossijsk	Russia	Record daily precipitation	18.1 mm (0.7 in)	11 of 100 (Routine)
Mackinaw City 2	United States	Record low maximum temperature	11.1 C (52.0 F)	11 of 100 (Routine)
Dickinson Exp STN	United States	Record low minimum temperature	-3.3 C (26.1 F)	11 of 100 (Routine)
New England	United States	Record low maximum temperature	5.6 C (42.1 F)	11 of 100 (Routine)

Counts by Type and Timescale

169 records

Records set or tied on 20 September 1927 by type: Highest daily maximum 18, Lowest daily maximum 82, Highest daily minimum 6, Lowest daily minimum 36, Heaviest daily rainfall 27.

Records on 20 September 1927 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	82
Highest daily minimum	6
Lowest daily minimum	36
Heaviest daily rainfall	27
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 September 1927 by timescale: all-time 0, monthly 1, daily 168.

How Much Records Were Beaten By

126 broken records

Margins by which the 126 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 48.2. Ties are not counted.

Top 20 by Significance

20 September 1927

Top 20 records on 20 September 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1927	Setauket Strong, US	daily rain	57.9 mm (2.3 in)	48.2 mm (1.9 in)	32 years	46 of 100 (Notable)
20 September 1927	Armagh, GB	daily rain	39.9 mm (1.6 in)	3.8 mm (0.15 in)	43 years	28 of 100 (Routine)
20 September 1927	Battleford, CA	daily low min	-3.9 C (25.0 F)	2.8 C (5.0 F)	43 years	23 of 100 (Routine)
20 September 1927	Old Mission, US	daily rain	26.9 mm (1.1 in)	16.7 mm (0.7 in)	14 years	23 of 100 (Routine)
20 September 1927	Oestersund-Froesoen, SE	daily rain	23.8 mm (0.9 in)	8.8 mm (0.35 in)	50 years	20 of 100 (Routine)
20 September 1927	Orenburg, RU	monthly rain	22.7 mm (0.9 in)	4.3 mm (0.17 in)	13 years	20 of 100 (Routine)
20 September 1927	Simferopol, UA	daily rain	13.5 mm (0.5 in)	6.8 mm (0.27 in)	37 years	20 of 100 (Routine)
20 September 1927	Dublin Phoenix Park, IE	daily rain	19.6 mm (0.8 in)	4.6 mm (0.18 in)	34 years	20 of 100 (Routine)
20 September 1927	Syktyvkar, RU	daily rain	9.5 mm (0.37 in)	4.0 mm (0.16 in)	36 years	20 of 100 (Routine)
20 September 1927	Perm, RU	daily rain	9.1 mm (0.36 in)	1.9 mm (0.07 in)	41 years	20 of 100 (Routine)
20 September 1927	Durham, GB	daily rain	26.7 mm (1.1 in)	1.2 mm (0.05 in)	43 years	19 of 100 (Routine)
20 September 1927	Kiev, UA	daily rain	15.6 mm (0.6 in)	2.0 mm (0.08 in)	43 years	19 of 100 (Routine)
20 September 1927	Charlevoix, US	daily rain	21.6 mm (0.9 in)	10.7 mm (0.4 in)	25 years	19 of 100 (Routine)
20 September 1927	Miles City, US	daily low min	-4.4 C (24.1 F)	5.5 C (9.9 F)	13 years	19 of 100 (Routine)
20 September 1927	Robe Comparison, AU	daily high max	21.3 C (70.3 F)	0.7 C (1.3 F)	39 years	18 of 100 (Routine)
20 September 1927	Boulia Airport, AU	daily high max	38.3 C (100.9 F)	1.2 C (2.2 F)	38 years	17 of 100 (Routine)
20 September 1927	Charlottetown, CA	daily rain	26.2 mm (1.0 in)	3.6 mm (0.14 in)	32 years	17 of 100 (Routine)
20 September 1927	Astana, KZ	daily low min	-2.7 C (27.1 F)	0.6 C (1.1 F)	42 years	17 of 100 (Routine)
20 September 1927	Kjobli I Snaasa, NO	daily rain	19.2 mm (0.8 in)	4.6 mm (0.18 in)	20 years	17 of 100 (Routine)
20 September 1927	Vysnij Volocek, RU	daily rain	14.6 mm (0.6 in)	5.2 mm (0.20 in)	12 years	17 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 1927

Records set or tied on this calendar date in each year from 1812 to 1927. 1927 had 169 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 1927-09-20: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	121
10 to 20	4
20 to 30	0
30 to 40	0
40 to 50	1