Weather Records on 20 September 1925

330 weather records were set or tied worldwide on 20 September 1925. Highest significance: George Airport, ZA.

Key Facts for 20 September 1925

On 20 September 1925, 330 weather records were set or tied at long-record stations worldwide.
228 were record highs and 35 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 320 daily.
George Airport set a daily record precipitation of 101.6 mm (4.0 in) on 20 September 1925.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 443 records.

Record Map

330 stations

330 station records on 20 September 1925 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1925: highest significance records shown on the map
Station	Country	Type	Value	Significance
George Airport	South Africa	Record daily precipitation	101.6 mm (4.0 in)	55 of 100 (Notable)
Beaufort West (Met)	South Africa	Record daily precipitation	56.6 mm (2.2 in)	49 of 100 (Notable)
Brome	Canada	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
The Towers	South Africa	Record daily precipitation	29.5 mm (1.2 in)	38 of 100 (Notable)
Oudtshoorn	South Africa	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Drift Sands (Bos)	South Africa	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Quebec	Canada	Record daily precipitation	39.1 mm (1.5 in)	35 of 100 (Notable)
Millwood (Bos)	South Africa	Record daily precipitation	57.2 mm (2.3 in)	32 of 100 (Routine)
Uniondale (Tnk)	South Africa	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
Unionville	United States	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
Riversdale	South Africa	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Humansdorp (Pol)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	31 of 100 (Routine)
Austin #2	United States	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Scottsboro	United States	Record high maximum temperature	40.0 C (104.0 F)	30 of 100 (Routine)
Rutherglen	Canada	Record daily precipitation	41.4 mm (1.6 in)	28 of 100 (Routine)
Bredasdorp	South Africa	Record daily precipitation	26.2 mm (1.0 in)	28 of 100 (Routine)
Bakensrug	South Africa	Record daily precipitation	33.0 mm (1.3 in)	28 of 100 (Routine)
Knysna (Tnk)	South Africa	Record daily precipitation	42.2 mm (1.7 in)	26 of 100 (Routine)
Ft Bidwell	United States	Record low maximum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Goudveld (Bos)	South Africa	Record daily precipitation	40.9 mm (1.6 in)	24 of 100 (Routine)
Haliburton A	Canada	Record daily precipitation	31.8 mm (1.3 in)	23 of 100 (Routine)
Fredericton Unb	Canada	Record low maximum temperature	11.1 C (52.0 F)	23 of 100 (Routine)
Montgomery Wb City	United States	Record high maximum temperature	38.3 C (100.9 F)	22 of 100 (Routine)
Valley Head	United States	Record high maximum temperature	38.9 C (102.0 F)	22 of 100 (Routine)
Port Washington	United States	Record high minimum temperature	22.2 C (72.0 F)	22 of 100 (Routine)
Chattanooga Wb City	United States	Record high maximum temperature	37.2 C (99.0 F)	22 of 100 (Routine)
Union Springs 9 S	United States	Record high maximum temperature	38.3 C (100.9 F)	21 of 100 (Routine)
Helena Wb City	United States	Record low minimum temperature	-3.9 C (25.0 F)	21 of 100 (Routine)
Leeu Gamka (Sar)	South Africa	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
St Albans	Canada	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Maristova	Norway	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Aberdeen Rd (Sar)	South Africa	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Ft Deposit	United States	Record high maximum temperature	38.3 C (100.9 F)	20 of 100 (Routine)
Athens	United States	Record high maximum temperature	40.0 C (104.0 F)	20 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record high maximum temperature	37.2 C (99.0 F)	20 of 100 (Routine)
Asheville	United States	Record high maximum temperature	33.9 C (93.0 F)	20 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low minimum temperature	-0.6 C (30.9 F)	19 of 100 (Routine)
Ottawa Cda	Canada	Record daily precipitation	22.9 mm (0.9 in)	19 of 100 (Routine)
Prince Albert Road	South Africa	Record daily precipitation	10.9 mm (0.4 in)	19 of 100 (Routine)
Aberdeen (Tnk)	South Africa	Record daily precipitation	17.8 mm (0.7 in)	19 of 100 (Routine)
Rogers	United States	Record high minimum temperature	25.0 C (77.0 F)	19 of 100 (Routine)
Talbotton	United States	Record high maximum temperature	41.1 C (106.0 F)	19 of 100 (Routine)
Lake	United States	Record high maximum temperature	37.8 C (100.0 F)	19 of 100 (Routine)
Trenton 1 NNE	United States	Record high maximum temperature	38.3 C (100.9 F)	19 of 100 (Routine)
Jacksonville Wb City	United States	Record high maximum temperature	35.0 C (95.0 F)	19 of 100 (Routine)
Wellwood	South Africa	Record daily precipitation	15.5 mm (0.6 in)	18 of 100 (Routine)
Highland Home	United States	Record high minimum temperature	25.6 C (78.1 F)	18 of 100 (Routine)
Kosciusko	United States	Record high maximum temperature	38.9 C (102.0 F)	18 of 100 (Routine)
Grant City	United States	Record daily precipitation	30.5 mm (1.2 in)	18 of 100 (Routine)
Lakeview 2 NNW	United States	Record daily precipitation	2.5 mm (0.10 in)	18 of 100 (Routine)
Orleansville (Chlef)	Algeria	Record high minimum temperature	22.0 C (71.6 F)	17 of 100 (Routine)
Chita	Russia	Record daily precipitation	7.5 mm (0.30 in)	17 of 100 (Routine)
Montgomery Wb City	United States	Record high minimum temperature	25.0 C (77.0 F)	17 of 100 (Routine)
Brinkley	United States	Record high maximum temperature	37.2 C (99.0 F)	17 of 100 (Routine)
Tallahassee	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
Lenox	United States	Record daily precipitation	38.1 mm (1.5 in)	17 of 100 (Routine)
Hernando	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
Leakesville 6 WSW	United States	Record high maximum temperature	39.4 C (102.9 F)	17 of 100 (Routine)
Warsaw 1	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
David City 4E	United States	Record daily precipitation	30.0 mm (1.2 in)	17 of 100 (Routine)

Counts by Type and Timescale

330 records

Records set or tied on 20 September 1925 by type: Highest daily maximum 124, Lowest daily maximum 16, Highest daily minimum 104, Lowest daily minimum 19, Heaviest daily rainfall 67.

Records on 20 September 1925 by type
Record type	Records
Highest daily maximum	124
Lowest daily maximum	16
Highest daily minimum	104
Lowest daily minimum	19
Heaviest daily rainfall	67
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 September 1925 by timescale: all-time 0, monthly 10, daily 320.

How Much Records Were Beaten By

247 broken records

Margins by which the 247 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 74.9. Ties are not counted.

Top 20 by Significance

20 September 1925

Top 20 records on 20 September 1925 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1925	George Airport, ZA	daily rain	101.6 mm (4.0 in)	74.9 mm (2.9 in)	36 years	55 of 100 (Notable)
20 September 1925	Beaufort West (Met), ZA	daily rain	56.6 mm (2.2 in)	50.2 mm (2.0 in)	19 years	49 of 100 (Notable)
20 September 1925	Brome, CA	daily rain	53.3 mm (2.1 in)	29.2 mm (1.1 in)	20 years	40 of 100 (Notable)
20 September 1925	The Towers, ZA	daily rain	29.5 mm (1.2 in)	20.4 mm (0.8 in)	12 years	38 of 100 (Notable)
20 September 1925	Oudtshoorn, ZA	daily rain	31.8 mm (1.3 in)	22.9 mm (0.9 in)	34 years	36 of 100 (Notable)
20 September 1925	Drift Sands (Bos), ZA	daily rain	48.3 mm (1.9 in)	39.2 mm (1.5 in)	11 years	36 of 100 (Notable)
20 September 1925	Quebec, CA	daily rain	39.1 mm (1.5 in)	23.9 mm (0.9 in)	25 years	35 of 100 (Notable)
20 September 1925	Millwood (Bos), ZA	daily rain	57.2 mm (2.3 in)	22.7 mm (0.9 in)	36 years	32 of 100 (Routine)
20 September 1925	Uniondale (Tnk), ZA	daily rain	50.8 mm (2.0 in)	22.4 mm (0.9 in)	36 years	32 of 100 (Routine)
20 September 1925	Unionville, US	daily rain	50.8 mm (2.0 in)	28.4 mm (1.1 in)	30 years	32 of 100 (Routine)
20 September 1925	Riversdale, ZA	daily rain	36.8 mm (1.4 in)	14.4 mm (0.6 in)	36 years	31 of 100 (Routine)
20 September 1925	Humansdorp (Pol), ZA	daily rain	34.5 mm (1.4 in)	25.9 mm (1.0 in)	18 years	31 of 100 (Routine)
20 September 1925	Austin #2, US	daily rain	26.2 mm (1.0 in)	17.6 mm (0.7 in)	23 years	31 of 100 (Routine)
20 September 1925	Scottsboro, US	daily high max	40.0 C (104.0 F)	7.2 C (13.0 F)	29 years	30 of 100 (Routine)
20 September 1925	Rutherglen, CA	daily rain	41.4 mm (1.6 in)	19.3 mm (0.8 in)	20 years	28 of 100 (Routine)
20 September 1925	Bredasdorp, ZA	daily rain	26.2 mm (1.0 in)	16.0 mm (0.6 in)	12 years	28 of 100 (Routine)
20 September 1925	Bakensrug, ZA	daily rain	33.0 mm (1.3 in)	26.1 mm (1.0 in)	19 years	28 of 100 (Routine)
20 September 1925	Knysna (Tnk), ZA	daily rain	42.2 mm (1.7 in)	24.2 mm (1.0 in)	15 years	26 of 100 (Routine)
20 September 1925	Ft Bidwell, US	daily low max	14.4 C (57.9 F)	2.8 C (5.0 F)	50 years	25 of 100 (Routine)
20 September 1925	Goudveld (Bos), ZA	daily rain	40.9 mm (1.6 in)	26.9 mm (1.1 in)	8 years	24 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 1925

Records set or tied on this calendar date in each year from 1812 to 1925. 1925 had 330 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 1925-09-20: 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	216
10 to 20	16
20 to 30	12
30 to 40	1
40 to 50	0
50 to 60	1
60 to 70	0
70 to 80	1