Weather Records on 23 September 1930

472 weather records were set or tied worldwide on 23 September 1930. Highest significance: Medicine Hat A, CA.

Key Facts for 23 September 1930

On 23 September 1930, 472 weather records were set or tied at long-record stations worldwide.
357 were record highs and 28 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 467 daily.
Medicine Hat A set a daily record precipitation of 40.6 mm (1.6 in) on 23 September 1930.
Across 169 earlier years (1793 to 2026) the same calendar date averaged 431 records.

Record Map

472 stations

472 station records on 23 September 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 September 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Medicine Hat A	Canada	Record daily precipitation	40.6 mm (1.6 in)	55 of 100 (Notable)
Kalispell Glacier AP	United States	Record daily precipitation	30.7 mm (1.2 in)	39 of 100 (Notable)
Timovskoe	Russia	Record daily precipitation	38.5 mm (1.5 in)	37 of 100 (Notable)
Prince Albert	Canada	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Gunnison 3SW	United States	Record high minimum temperature	13.9 C (57.0 F)	29 of 100 (Routine)
Kentani (Bos)	South Africa	Record daily precipitation	48.3 mm (1.9 in)	27 of 100 (Routine)
Wayne	United States	Record daily precipitation	31.2 mm (1.2 in)	27 of 100 (Routine)
Crookston NW Exp STN	United States	Record high minimum temperature	21.7 C (71.1 F)	27 of 100 (Routine)
Toongabbie	Australia	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Apollo Bay	Australia	Record daily precipitation	35.6 mm (1.4 in)	26 of 100 (Routine)
Oakbank	Canada	Record high minimum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Cornwall	United States	Record daily precipitation	30.5 mm (1.2 in)	25 of 100 (Routine)
Banff	Canada	Record daily snowfall	7.4 cm (2.9 in)	24 of 100 (Routine)
Wahpeton 3 N	United States	Record high minimum temperature	22.2 C (72.0 F)	24 of 100 (Routine)
Aberdeen	United States	Record low maximum temperature	10.6 C (51.1 F)	24 of 100 (Routine)
Buchan	Australia	Record daily precipitation	31.0 mm (1.2 in)	23 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Huron Rgnl AP	United States	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Swift Current	Canada	Record daily precipitation	30.7 mm (1.2 in)	22 of 100 (Routine)
Hovlandsdal	Norway	Record daily precipitation	90.5 mm (3.6 in)	22 of 100 (Routine)
Armagh	United Kingdom	Record high minimum temperature	14.6 C (58.3 F)	21 of 100 (Routine)
Fullerton 1 ESE	United States	Record high minimum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Jacksonville Wb City	United States	Record high minimum temperature	25.0 C (77.0 F)	21 of 100 (Routine)
Levan	United States	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Great Falls 16St	United States	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Battleford	Canada	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Fort Macleod	Canada	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Lakes Entrance Post Office	Australia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Canyon Ferry	United States	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Colinroobie	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Maffra Shire Hall	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Warrnambool Shire Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Fort Macleod	Canada	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Kirov	Russia	Record daily precipitation	17.4 mm (0.7 in)	20 of 100 (Routine)
Missoula 6 NW WFO	United States	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Coolamon Post Office	Australia	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Bruthen (Post Office)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Calgary Int'l A	Canada	Record daily snowfall	10.7 cm (4.2 in)	20 of 100 (Routine)
St Albans	Canada	Record high minimum temperature	15.6 C (60.1 F)	20 of 100 (Routine)
Springer	United States	Record high maximum temperature	35.0 C (95.0 F)	20 of 100 (Routine)
Napoleon	United States	Record high minimum temperature	18.9 C (66.0 F)	20 of 100 (Routine)
Huntington 1	United States	Record high maximum temperature	35.6 C (96.1 F)	20 of 100 (Routine)
Viroqua	United States	Record high maximum temperature	31.7 C (89.1 F)	20 of 100 (Routine)
Baltimore Customs House	United States	Record high minimum temperature	22.8 C (73.0 F)	20 of 100 (Routine)
Chaplin	Canada	Record daily precipitation	12.7 mm (0.5 in)	19 of 100 (Routine)
Nicosia	Cyprus	Record daily precipitation	16.5 mm (0.6 in)	19 of 100 (Routine)
Maristova	Norway	Record daily precipitation	12.0 mm (0.5 in)	19 of 100 (Routine)
Namdalseid	Norway	Record daily precipitation	23.2 mm (0.9 in)	19 of 100 (Routine)
Denison	United States	Record high minimum temperature	21.1 C (70.0 F)	19 of 100 (Routine)
Knoxville	United States	Record high minimum temperature	21.1 C (70.0 F)	19 of 100 (Routine)
Hallock	United States	Record high minimum temperature	19.4 C (66.9 F)	19 of 100 (Routine)
La Delle 7 NE	United States	Record high minimum temperature	21.7 C (71.1 F)	19 of 100 (Routine)
Cowabie	Australia	Record daily precipitation	7.1 mm (0.28 in)	18 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record high minimum temperature	13.7 C (56.7 F)	18 of 100 (Routine)
Fayette	United States	Record high maximum temperature	32.2 C (90.0 F)	18 of 100 (Routine)
Harlan	United States	Record high minimum temperature	20.0 C (68.0 F)	18 of 100 (Routine)
Madison	United States	Record high minimum temperature	22.2 C (72.0 F)	18 of 100 (Routine)

Counts by Type and Timescale

472 records

Records set or tied on 23 September 1930 by type: Highest daily maximum 157, Lowest daily maximum 13, Highest daily minimum 200, Lowest daily minimum 15, Heaviest daily rainfall 84, Heaviest daily snowfall 3.

Records on 23 September 1930 by type
Record type	Records
Highest daily maximum	157
Lowest daily maximum	13
Highest daily minimum	200
Lowest daily minimum	15
Heaviest daily rainfall	84
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 23 September 1930 by timescale: all-time 0, monthly 5, daily 467.

How Much Records Were Beaten By

366 broken records

Margins by which the 366 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 59.0. Ties are not counted.

Top 20 by Significance

23 September 1930

Top 20 records on 23 September 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 1930	Medicine Hat A, CA	daily rain	40.6 mm (1.6 in)	25.1 mm (1.0 in)	38 years	55 of 100 (Notable)
23 September 1930	Kalispell Glacier AP, US	daily rain	30.7 mm (1.2 in)	18.0 mm (0.7 in)	29 years	39 of 100 (Notable)
23 September 1930	Timovskoe, RU	daily rain	38.5 mm (1.5 in)	23.2 mm (0.9 in)	15 years	37 of 100 (Notable)
23 September 1930	Prince Albert, CA	daily rain	30.0 mm (1.2 in)	21.4 mm (0.8 in)	3 years	33 of 100 (Routine)
23 September 1930	Bathurst Gaol, AU	daily low max	10.0 C (50.0 F)	1.1 C (2.0 F)	69 years	29 of 100 (Routine)
23 September 1930	Gunnison 3SW, US	daily high min	13.9 C (57.0 F)	8.3 C (14.9 F)	25 years	29 of 100 (Routine)
23 September 1930	Kentani (Bos), ZA	daily rain	48.3 mm (1.9 in)	31.0 mm (1.2 in)	11 years	27 of 100 (Routine)
23 September 1930	Wayne, US	daily rain	31.2 mm (1.2 in)	17.2 mm (0.7 in)	20 years	27 of 100 (Routine)
23 September 1930	Crookston NW Exp STN, US	daily high min	21.7 C (71.1 F)	6.7 C (12.1 F)	38 years	27 of 100 (Routine)
23 September 1930	Toongabbie, AU	daily rain	25.4 mm (1.0 in)	9.4 mm (0.37 in)	37 years	26 of 100 (Routine)
23 September 1930	Apollo Bay, AU	daily rain	35.6 mm (1.4 in)	10.7 mm (0.4 in)	30 years	26 of 100 (Routine)
23 September 1930	Oakbank, CA	daily high min	16.7 C (62.1 F)	5.6 C (10.1 F)	38 years	25 of 100 (Routine)
23 September 1930	Cornwall, US	daily rain	30.5 mm (1.2 in)	19.8 mm (0.8 in)	13 years	25 of 100 (Routine)
23 September 1930	Banff, CA	daily snowfall	7.4 cm (2.9 in)	5.9 cm (2.3 in)	28 years	24 of 100 (Routine)
23 September 1930	Wahpeton 3 N, US	monthly high min	22.2 C (72.0 F)	1.1 C (2.0 F)	33 years	24 of 100 (Routine)
23 September 1930	Aberdeen, US	monthly low max	10.6 C (51.1 F)	1.1 C (2.0 F)	27 years	24 of 100 (Routine)
23 September 1930	Buchan, AU	daily rain	31.0 mm (1.2 in)	13.7 mm (0.5 in)	16 years	23 of 100 (Routine)
23 September 1930	Winnipeg St Johns Coll, CA	daily high min	16.7 C (62.1 F)	3.4 C (6.1 F)	41 years	23 of 100 (Routine)
23 September 1930	Huron Rgnl AP, US	daily high min	18.3 C (64.9 F)	2.7 C (4.9 F)	43 years	23 of 100 (Routine)
23 September 1930	Swift Current, CA	daily rain	30.7 mm (1.2 in)	10.4 mm (0.4 in)	9 years	22 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

1793 to 1930

Records set or tied on this calendar date in each year from 1793 to 1930. 1930 had 472 records.

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

Records on 09-23 in each year
Year	Records
1793	1
1796	1
1799	1
1804	1
1832	1
1835	1
1838	1
1842	3
1843	1
1845	2
1848	1
1849	1
1850	1
1851	2
1854	3
1855	1
1859	2
1864	1
1865	1
1866	1
1868	1
1871	1
1872	1
1874	1
1875	1
1876	1
1877	1
1881	4
1882	2
1885	1
1886	1
1887	1
1888	1
1889	3
1890	2
1891	1
1892	2
1893	4
1895	9
1896	5
1897	1
1898	2
1899	4
1900	4
1901	2
1902	6
1903	7
1904	19
1905	6
1906	6
1907	19
1908	19
1909	15
1910	8
1911	11
1912	15
1913	22
1914	29
1915	25
1916	324
1917	56
1918	34
1919	40
1920	44
1921	47
1922	34
1923	74
1924	194
1925	223
1926	459
1927	247
1928	382
1929	198
1930	472
1931	600
1932	383
1933	281
1934	361
1935	239
1936	377
1937	557
1938	389
1939	279
1940	374
1941	490
1942	557
1943	322
1944	381
1945	652
1946	623
1947	803
1948	259
1949	496
1950	267
1951	462
1952	432
1953	271
1954	324
1955	852
1956	299
1957	539
1958	641
1959	307
1960	470
1961	670
1962	344
1963	568
1964	322
1965	783
1966	528
1967	341
1968	481
1969	450
1970	1,457
1971	578
1972	461
1973	674
1974	1,543
1975	1,038
1976	463
1977	616
1978	500
1979	586
1980	1,037
1981	717
1982	775
1983	1,744
1984	1,121
1985	924
1986	740
1987	1,077
1988	653
1989	1,376
1990	702
1991	519
1992	976
1993	983
1994	1,140
1995	1,868
1996	809
1997	1,060
1998	1,326
1999	1,207
2000	2,026
2001	790
2002	930
2003	1,243
2004	986
2005	1,207
2006	1,509
2007	1,153
2008	835
2009	1,201
2010	1,360
2011	666
2012	785
2013	573
2014	595
2015	587
2016	774
2017	1,371
2018	693
2019	565
2020	618
2021	602
2022	551
2023	812
2024	499
2025	449
2026	384

Download the Data

Data for records on 1930-09-23: 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	347
10 to 20	11
20 to 30	5
30 to 40	1
40 to 50	1
50 to 60	1