Weather Records on 25 September 1930

489 weather records were set or tied worldwide on 25 September 1930. Highest significance: Belle Plaine, US.

Key Facts for 25 September 1930

On 25 September 1930, 489 weather records were set or tied at long-record stations worldwide.
389 were record highs and 12 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 488 daily.
Belle Plaine set a daily record precipitation of 90.2 mm (3.6 in) on 25 September 1930.
Across 163 earlier years (1825 to 2026) the same calendar date averaged 425 records.

Record Map

489 stations

489 station records on 25 September 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 September 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Belle Plaine	United States	Record daily precipitation	90.2 mm (3.6 in)	47 of 100 (Notable)
Lacona	United States	Record daily precipitation	106.7 mm (4.2 in)	47 of 100 (Notable)
Kerkwerve	Netherlands	Record daily precipitation	26.5 mm (1.0 in)	46 of 100 (Notable)
Knoxville	United States	Record daily precipitation	72.4 mm (2.9 in)	36 of 100 (Notable)
Fairmont	United States	Record daily precipitation	66.8 mm (2.6 in)	36 of 100 (Notable)
Marion	United States	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Scottsbluff W B Heilig Fld AP	United States	Record daily precipitation	27.4 mm (1.1 in)	32 of 100 (Routine)
Waterloo	United States	Record daily precipitation	49.0 mm (1.9 in)	31 of 100 (Routine)
Hillsdale	United States	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Ottawa	Canada	Record high minimum temperature	18.3 C (64.9 F)	29 of 100 (Routine)
Winterset 4N	United States	Record daily precipitation	69.9 mm (2.8 in)	29 of 100 (Routine)
Toronto	Canada	Record high minimum temperature	18.3 C (64.9 F)	28 of 100 (Routine)
Towanda 1 S	United States	Record daily precipitation	55.4 mm (2.2 in)	27 of 100 (Routine)
Iowa City	United States	Record daily precipitation	34.0 mm (1.3 in)	26 of 100 (Routine)
Olin	United States	Record daily precipitation	39.6 mm (1.6 in)	26 of 100 (Routine)
Sigourney	United States	Record daily precipitation	41.4 mm (1.6 in)	26 of 100 (Routine)
Washington	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Covington 8 WNW	United States	Record daily precipitation	38.9 mm (1.5 in)	25 of 100 (Routine)
Richmond Wtr Wks	United States	Record daily precipitation	48.8 mm (1.9 in)	24 of 100 (Routine)
Oelrichs	United States	Record daily precipitation	41.9 mm (1.6 in)	24 of 100 (Routine)
Beatrice	Canada	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Haliburton A	Canada	Record high minimum temperature	18.9 C (66.0 F)	23 of 100 (Routine)
Peterborough	Canada	Record high minimum temperature	18.9 C (66.0 F)	23 of 100 (Routine)
Algona	United States	Record daily precipitation	56.1 mm (2.2 in)	23 of 100 (Routine)
Fairfield	United States	Record daily precipitation	33.3 mm (1.3 in)	23 of 100 (Routine)
Hart 3 WSW	United States	Record high minimum temperature	22.2 C (72.0 F)	23 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	19.4 C (66.9 F)	22 of 100 (Routine)
Albia 3 NNE	United States	Record daily precipitation	49.5 mm (1.9 in)	22 of 100 (Routine)
Runnymede Spottsville	United States	Record high maximum temperature	36.7 C (98.1 F)	22 of 100 (Routine)
La Harpe	United States	Record daily precipitation	63.5 mm (2.5 in)	21 of 100 (Routine)
Adrian 2 NNE	United States	Record high minimum temperature	20.0 C (68.0 F)	21 of 100 (Routine)
Falun	Sweden	Record daily precipitation	19.9 mm (0.8 in)	20 of 100 (Routine)
Aurora Water	United States	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Scheveningen	Netherlands	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)
Parry Sound	Canada	Record high minimum temperature	17.8 C (64.0 F)	20 of 100 (Routine)
Mt Vernon 3 NE	United States	Record daily precipitation	25.7 mm (1.0 in)	20 of 100 (Routine)
West Bend	United States	Record daily precipitation	40.6 mm (1.6 in)	20 of 100 (Routine)
Grayling	United States	Record high minimum temperature	18.9 C (66.0 F)	20 of 100 (Routine)
Cape May 2 NW	United States	Record high minimum temperature	22.8 C (73.0 F)	20 of 100 (Routine)
Carthage	United States	Record high minimum temperature	22.8 C (73.0 F)	20 of 100 (Routine)
Welland	Canada	Record daily precipitation	20.3 mm (0.8 in)	19 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high maximum temperature	16.7 C (62.1 F)	19 of 100 (Routine)
Evergreen	United States	Record high minimum temperature	22.8 C (73.0 F)	19 of 100 (Routine)
Fernandina Beach	United States	Record high minimum temperature	25.6 C (78.1 F)	19 of 100 (Routine)
Washington	United States	Record daily precipitation	31.0 mm (1.2 in)	19 of 100 (Routine)
Owosso Wwtp	United States	Record daily precipitation	16.5 mm (0.6 in)	19 of 100 (Routine)
Moorefield 1 SSE	United States	Record high maximum temperature	38.3 C (100.9 F)	19 of 100 (Routine)
Lakefield	Canada	Record high minimum temperature	18.3 C (64.9 F)	18 of 100 (Routine)
Stockholm	Sweden	Record high minimum temperature	12.5 C (54.5 F)	18 of 100 (Routine)
Ames 3 SW	United States	Record daily precipitation	41.9 mm (1.6 in)	18 of 100 (Routine)
Greensburg	United States	Record high minimum temperature	22.2 C (72.0 F)	18 of 100 (Routine)
Manistee 3SE	United States	Record high minimum temperature	18.3 C (64.9 F)	18 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	20.6 C (69.1 F)	18 of 100 (Routine)
Alexandria 4 WSW	United States	Record high minimum temperature	20.6 C (69.1 F)	18 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record high minimum temperature	21.1 C (70.0 F)	18 of 100 (Routine)
Albury	Australia	Record daily precipitation	23.9 mm (0.9 in)	17 of 100 (Routine)
Briagolong	Australia	Record daily precipitation	19.6 mm (0.8 in)	17 of 100 (Routine)
Turkestan	Kazakhstan	Record daily precipitation	3.2 mm (0.13 in)	17 of 100 (Routine)
Highland Home	United States	Record daily precipitation	38.1 mm (1.5 in)	17 of 100 (Routine)
Mt Pleasant 1 SW	United States	Record daily precipitation	38.1 mm (1.5 in)	17 of 100 (Routine)

Counts by Type and Timescale

489 records

Records set or tied on 25 September 1930 by type: Highest daily maximum 92, Lowest daily maximum 10, Highest daily minimum 297, Lowest daily minimum 2, Heaviest daily rainfall 87, Heaviest daily snowfall 1.

Records on 25 September 1930 by type
Record type	Records
Highest daily maximum	92
Lowest daily maximum	10
Highest daily minimum	297
Lowest daily minimum	2
Heaviest daily rainfall	87
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 25 September 1930 by timescale: all-time 0, monthly 1, daily 488.

How Much Records Were Beaten By

393 broken records

Margins by which the 393 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 80.3. Ties are not counted.

Top 20 by Significance

25 September 1930

Top 20 records on 25 September 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 September 1930	Belle Plaine, US	daily rain	90.2 mm (3.6 in)	73.2 mm (2.9 in)	15 years	47 of 100 (Notable)
25 September 1930	Lacona, US	daily rain	106.7 mm (4.2 in)	80.3 mm (3.2 in)	15 years	47 of 100 (Notable)
25 September 1930	Kerkwerve, NL	daily rain	26.5 mm (1.0 in)	16.7 mm (0.7 in)	44 years	46 of 100 (Notable)
25 September 1930	Knoxville, US	daily rain	72.4 mm (2.9 in)	60.7 mm (2.4 in)	3 years	36 of 100 (Notable)
25 September 1930	Fairmont, US	daily rain	66.8 mm (2.6 in)	49.0 mm (1.9 in)	0 years	36 of 100 (Notable)
25 September 1930	Marion, US	daily rain	43.2 mm (1.7 in)	33.5 mm (1.3 in)	4 years	32 of 100 (Routine)
25 September 1930	Scottsbluff W B Heilig Fld AP, US	daily rain	27.4 mm (1.1 in)	21.0 mm (0.8 in)	15 years	32 of 100 (Routine)
25 September 1930	Waterloo, US	daily rain	49.0 mm (1.9 in)	37.6 mm (1.5 in)	16 years	31 of 100 (Routine)
25 September 1930	Hillsdale, US	daily rain	38.1 mm (1.5 in)	27.4 mm (1.1 in)	8 years	30 of 100 (Routine)
25 September 1930	Ottawa, CA	daily high min	18.3 C (64.9 F)	3.3 C (5.9 F)	57 years	29 of 100 (Routine)
25 September 1930	Winterset 4N, US	daily rain	69.9 mm (2.8 in)	31.3 mm (1.2 in)	15 years	29 of 100 (Routine)
25 September 1930	Toronto, CA	daily high min	18.3 C (64.9 F)	0.5 C (0.9 F)	60 years	28 of 100 (Routine)
25 September 1930	Towanda 1 S, US	daily rain	55.4 mm (2.2 in)	17.3 mm (0.7 in)	28 years	27 of 100 (Routine)
25 September 1930	Iowa City, US	daily rain	34.0 mm (1.3 in)	21.3 mm (0.8 in)	28 years	26 of 100 (Routine)
25 September 1930	Olin, US	daily rain	39.6 mm (1.6 in)	24.4 mm (1.0 in)	28 years	26 of 100 (Routine)
25 September 1930	Sigourney, US	daily rain	41.4 mm (1.6 in)	25.4 mm (1.0 in)	15 years	26 of 100 (Routine)
25 September 1930	Washington, US	daily high max	35.0 C (95.0 F)	2.1 C (3.8 F)	48 years	26 of 100 (Routine)
25 September 1930	Covington 8 WNW, US	daily rain	38.9 mm (1.5 in)	27.7 mm (1.1 in)	21 years	25 of 100 (Routine)
25 September 1930	Richmond Wtr Wks, US	daily rain	48.8 mm (1.9 in)	25.4 mm (1.0 in)	4 years	24 of 100 (Routine)
25 September 1930	Oelrichs, US	daily rain	41.9 mm (1.6 in)	31.7 mm (1.2 in)	3 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

1825 to 1930

Records set or tied on this calendar date in each year from 1825 to 1930. 1930 had 489 records.

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

Records on 09-25 in each year
Year	Records
1825	1
1834	1
1836	1
1842	1
1843	1
1847	1
1851	1
1852	1
1855	1
1857	2
1859	1
1860	1
1863	1
1865	1
1866	2
1867	2
1868	1
1871	2
1872	1
1874	1
1875	1
1877	3
1879	2
1881	3
1884	3
1885	6
1886	1
1887	3
1889	7
1891	3
1893	7
1894	3
1895	5
1896	5
1897	2
1898	1
1899	2
1900	7
1901	6
1902	11
1903	4
1904	10
1905	16
1906	7
1907	35
1908	20
1909	22
1910	5
1911	9
1912	63
1913	13
1914	15
1915	43
1916	139
1917	138
1918	16
1919	20
1920	75
1921	32
1922	47
1923	68
1924	157
1925	141
1926	740
1927	166
1928	480
1929	158
1930	489
1931	500
1932	260
1933	542
1934	394
1935	258
1936	274
1937	190
1938	335
1939	454
1940	517
1941	269
1942	970
1943	488
1944	246
1945	514
1946	292
1947	666
1948	501
1949	479
1950	1,163
1951	639
1952	515
1953	242
1954	292
1955	546
1956	503
1957	231
1958	454
1959	396
1960	694
1961	530
1962	305
1963	602
1964	403
1965	690
1966	334
1967	428
1968	300
1969	196
1970	783
1971	323
1972	706
1973	650
1974	995
1975	1,166
1976	541
1977	875
1978	462
1979	719
1980	687
1981	669
1982	759
1983	647
1984	1,305
1985	446
1986	1,766
1987	560
1988	571
1989	1,367
1990	875
1991	1,243
1992	1,346
1993	1,015
1994	666
1995	1,013
1996	648
1997	1,278
1998	1,346
1999	804
2000	1,536
2001	1,536
2002	876
2003	758
2004	519
2005	1,484
2006	767
2007	1,284
2008	766
2009	854
2010	1,125
2011	763
2012	505
2013	615
2014	800
2015	868
2016	781
2017	1,253
2018	648
2019	530
2020	1,089
2021	355
2022	301
2023	580
2024	1,120
2025	569
2026	473

Download the Data

Data for records on 1930-09-25: 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 20	371
20 to 40	18
40 to 60	1
60 to 80	2
80 to 100	1