Weather Records on 20 September 1937

385 weather records were set or tied worldwide on 20 September 1937. Highest significance: Vanersborg, SE.

Key Facts for 20 September 1937

On 20 September 1937, 385 weather records were set or tied at long-record stations worldwide.
177 were record highs and 129 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 381 daily.
Vanersborg set a daily record precipitation of 35.3 mm (1.4 in) on 20 September 1937.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 443 records.

Record Map

385 stations

385 station records on 20 September 1937 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1937: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vanersborg	Sweden	Record daily precipitation	35.3 mm (1.4 in)	44 of 100 (Notable)
Skara 1	Sweden	Record daily precipitation	60.5 mm (2.4 in)	44 of 100 (Notable)
Flahult	Sweden	Record daily precipitation	38.3 mm (1.5 in)	40 of 100 (Notable)
Wangerooge	Germany	Record daily precipitation	37.7 mm (1.5 in)	35 of 100 (Notable)
Roper River Police	Australia	Record daily precipitation	41.4 mm (1.6 in)	31 of 100 (Routine)
Velikie Luki	Russia	Record high maximum temperature	26.1 C (79.0 F)	31 of 100 (Routine)
Mount Lofty Summit	Australia	Record daily precipitation	45.5 mm (1.8 in)	29 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	8.3 C (46.9 F)	29 of 100 (Routine)
Jonkoping	Sweden	Record daily precipitation	26.8 mm (1.1 in)	29 of 100 (Routine)
Agassiz Cda	Canada	Record high minimum temperature	14.4 C (57.9 F)	27 of 100 (Routine)
Ulricehamn	Sweden	Record daily precipitation	44.5 mm (1.8 in)	26 of 100 (Routine)
Ft Myers Page Fld AP	United States	Record high minimum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Port Dover	Canada	Record low minimum temperature	0.6 C (33.1 F)	24 of 100 (Routine)
East Anaconda	United States	Record daily precipitation	29.7 mm (1.2 in)	23 of 100 (Routine)
Salisbury	United States	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Raichur	India	Record daily precipitation	37.6 mm (1.5 in)	22 of 100 (Routine)
Ashton 1N	United States	Record high maximum temperature	33.3 C (91.9 F)	22 of 100 (Routine)
Castlewood	United States	Record high maximum temperature	35.0 C (95.0 F)	22 of 100 (Routine)
Beckley Va Hospital	United States	Record low minimum temperature	-1.7 C (28.9 F)	22 of 100 (Routine)
Edmonton	Canada	Record high minimum temperature	11.7 C (53.1 F)	21 of 100 (Routine)
Bilasipara	India	Record daily precipitation	59.7 mm (2.4 in)	21 of 100 (Routine)
Oktjabrskij-Gorodok	Russia	Record high maximum temperature	28.1 C (82.6 F)	21 of 100 (Routine)
Bainbridge	United States	Record low maximum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Marengo	United States	Record low minimum temperature	0.0 C (32.0 F)	21 of 100 (Routine)
College STN 6 SW	United States	Record high maximum temperature	38.9 C (102.0 F)	21 of 100 (Routine)
St Georges	Canada	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Vastervik	Sweden	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Tranebjerg	Denmark	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Katherine Council	Australia	Record daily precipitation	5.8 mm (0.23 in)	20 of 100 (Routine)
Caldwell	United States	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Payette	United States	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Burrawang South Station	Australia	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Machadodorp	South Africa	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Riverside 7 SSW	United States	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Nordby (Fano)	Denmark	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Vale	United States	Record daily precipitation	3.8 mm (0.15 in)	20 of 100 (Routine)
Santa Cruz	United States	Record low minimum temperature	3.9 C (39.0 F)	20 of 100 (Routine)
Emmett 2 E	United States	Record daily precipitation	5.6 mm (0.22 in)	20 of 100 (Routine)
Jeffersonville	United States	Record low minimum temperature	2.8 C (37.0 F)	20 of 100 (Routine)
Kohala 179.1	United States	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Mutooroo	Australia	Record daily precipitation	0.5 mm (0.02 in)	19 of 100 (Routine)
Edmonton	Canada	Record daily precipitation	18.8 mm (0.7 in)	19 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record daily precipitation	17.0 mm (0.7 in)	19 of 100 (Routine)
Gurjala(Gurujala)	India	Record daily precipitation	46.0 mm (1.8 in)	19 of 100 (Routine)
Vilnius	Lithuania	Record high minimum temperature	16.6 C (61.9 F)	19 of 100 (Routine)
Bainbridge	United States	Record daily precipitation	33.8 mm (1.3 in)	19 of 100 (Routine)
Cambridge	United States	Record daily precipitation	2.0 mm (0.08 in)	19 of 100 (Routine)
Alma	United States	Record low minimum temperature	-0.6 C (30.9 F)	19 of 100 (Routine)
Red Lodge	United States	Record high minimum temperature	12.2 C (54.0 F)	19 of 100 (Routine)
Taos	United States	Record high maximum temperature	30.6 C (87.1 F)	19 of 100 (Routine)
Lancaster 2 NW	United States	Record low minimum temperature	0.0 C (32.0 F)	19 of 100 (Routine)
Beaufort Wwtp	United States	Record daily precipitation	45.7 mm (1.8 in)	19 of 100 (Routine)
Highmore	United States	Record high maximum temperature	36.7 C (98.1 F)	19 of 100 (Routine)
Cle Elum	United States	Record high minimum temperature	13.3 C (55.9 F)	19 of 100 (Routine)
Beckley Va Hospital	United States	Record low maximum temperature	15.0 C (59.0 F)	19 of 100 (Routine)
Liepaja	Latvia	Record high minimum temperature	15.4 C (59.7 F)	18 of 100 (Routine)
Botanic Gardens - Pmb	South Africa	Record daily precipitation	10.2 mm (0.4 in)	18 of 100 (Routine)
Ottawa 4SW	United States	Record low minimum temperature	0.0 C (32.0 F)	18 of 100 (Routine)
Salamonia	United States	Record low minimum temperature	0.6 C (33.1 F)	18 of 100 (Routine)
Scottsburg	United States	Record low minimum temperature	2.2 C (36.0 F)	18 of 100 (Routine)

Counts by Type and Timescale

385 records

Records set or tied on 20 September 1937 by type: Highest daily maximum 105, Lowest daily maximum 29, Highest daily minimum 72, Lowest daily minimum 100, Heaviest daily rainfall 79.

Records on 20 September 1937 by type
Record type	Records
Highest daily maximum	105
Lowest daily maximum	29
Highest daily minimum	72
Lowest daily minimum	100
Heaviest daily rainfall	79
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 September 1937 by timescale: all-time 0, monthly 4, daily 381.

How Much Records Were Beaten By

294 broken records

Margins by which the 294 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 32.3. Ties are not counted.

Top 20 by Significance

20 September 1937

Top 20 records on 20 September 1937 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1937	Vanersborg, SE	daily rain	35.3 mm (1.4 in)	14.8 mm (0.6 in)	43 years	44 of 100 (Notable)
20 September 1937	Skara 1, SE	daily rain	60.5 mm (2.4 in)	16.0 mm (0.6 in)	39 years	44 of 100 (Notable)
20 September 1937	Flahult, SE	daily rain	38.3 mm (1.5 in)	21.3 mm (0.8 in)	15 years	40 of 100 (Notable)
20 September 1937	Wangerooge, DE	daily rain	37.7 mm (1.5 in)	11.2 mm (0.4 in)	37 years	35 of 100 (Notable)
20 September 1937	Roper River Police, AU	monthly rain	41.4 mm (1.6 in)	17.3 mm (0.7 in)	1 year	31 of 100 (Routine)
20 September 1937	Velikie Luki, RU	daily high max	26.1 C (79.0 F)	4.5 C (8.1 F)	54 years	31 of 100 (Routine)
20 September 1937	Mount Lofty Summit, AU	daily rain	45.5 mm (1.8 in)	27.5 mm (1.1 in)	4 years	29 of 100 (Routine)
20 September 1937	Cape Otway Lighthouse, AU	daily low max	8.3 C (46.9 F)	2.8 C (5.0 F)	47 years	29 of 100 (Routine)
20 September 1937	Jonkoping, SE	daily rain	26.8 mm (1.1 in)	5.2 mm (0.20 in)	39 years	29 of 100 (Routine)
20 September 1937	Agassiz Cda, CA	daily high min	14.4 C (57.9 F)	3.3 C (5.9 F)	44 years	27 of 100 (Routine)
20 September 1937	Ulricehamn, SE	monthly rain	44.5 mm (1.8 in)	1.2 mm (0.05 in)	39 years	26 of 100 (Routine)
20 September 1937	Ft Myers Page Fld AP, US	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	44 years	26 of 100 (Routine)
20 September 1937	Port Dover, CA	daily low min	0.6 C (33.1 F)	3.3 C (5.9 F)	40 years	24 of 100 (Routine)
20 September 1937	East Anaconda, US	monthly rain	29.7 mm (1.2 in)	1.8 mm (0.07 in)	25 years	23 of 100 (Routine)
20 September 1937	Salisbury, US	daily low max	7.8 C (46.0 F)	4.4 C (7.9 F)	36 years	23 of 100 (Routine)
20 September 1937	Raichur, IN	daily rain	37.6 mm (1.5 in)	15.5 mm (0.6 in)	35 years	22 of 100 (Routine)
20 September 1937	Ashton 1N, US	daily high max	33.3 C (91.9 F)	3.9 C (7.0 F)	38 years	22 of 100 (Routine)
20 September 1937	Castlewood, US	daily high max	35.0 C (95.0 F)	3.3 C (5.9 F)	43 years	22 of 100 (Routine)
20 September 1937	Beckley Va Hospital, US	daily low min	-1.7 C (28.9 F)	3.9 C (7.0 F)	36 years	22 of 100 (Routine)
20 September 1937	Edmonton, CA	daily high min	11.7 C (53.1 F)	2.8 C (5.0 F)	32 years	21 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 1937

Records set or tied on this calendar date in each year from 1812 to 1937. 1937 had 385 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 1937-09-20: 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 5	247
5 to 10	24
10 to 15	5
15 to 20	8
20 to 25	5
25 to 30	4
30 to 35	1