Weather Records on 15 September 1930

235 weather records were set or tied worldwide on 15 September 1930. Highest significance: Mt Carmel, US.

Key Facts for 15 September 1930

On 15 September 1930, 235 weather records were set or tied at long-record stations worldwide.
112 were record highs and 19 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 233 daily.
Mt Carmel set a daily record precipitation of 71.1 mm (2.8 in) on 15 September 1930.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 414 records.

Record Map

235 stations

235 station records on 15 September 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mt Carmel	United States	Record daily precipitation	71.1 mm (2.8 in)	48 of 100 (Notable)
Paoli	United States	Record daily precipitation	66.0 mm (2.6 in)	46 of 100 (Notable)
Mahackala	Russia	Record daily precipitation	51.2 mm (2.0 in)	44 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	61.0 mm (2.4 in)	44 of 100 (Notable)
Salem	United States	Record daily precipitation	53.3 mm (2.1 in)	44 of 100 (Notable)
Gravette	United States	Record daily precipitation	69.9 mm (2.8 in)	34 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
1 WSW Princeton	United States	Record daily precipitation	78.0 mm (3.1 in)	31 of 100 (Routine)
St John Bethlehem Aca	United States	Record daily precipitation	51.1 mm (2.0 in)	31 of 100 (Routine)
New Burnside	United States	Record daily precipitation	54.9 mm (2.2 in)	30 of 100 (Routine)
Hvar	Croatia	Record high maximum temperature	30.5 C (86.9 F)	29 of 100 (Routine)
1 N McLeansboro	United States	Record daily precipitation	102.4 mm (4.0 in)	29 of 100 (Routine)
Palestine	United States	Record daily precipitation	67.3 mm (2.6 in)	29 of 100 (Routine)
Scottsburg	United States	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Marble Hill	United States	Record daily precipitation	45.7 mm (1.8 in)	27 of 100 (Routine)
Vincennes 4 E	United States	Record daily precipitation	49.8 mm (2.0 in)	25 of 100 (Routine)
Washington 1 W	United States	Record daily precipitation	44.2 mm (1.7 in)	25 of 100 (Routine)
Anchorage	United States	Record daily precipitation	29.2 mm (1.1 in)	25 of 100 (Routine)
Ben Lomond	Australia	Record daily precipitation	42.4 mm (1.7 in)	24 of 100 (Routine)
Mt Vernon 3 NE	United States	Record daily precipitation	59.7 mm (2.4 in)	24 of 100 (Routine)
New Braunfels	United States	Record high maximum temperature	38.3 C (100.9 F)	24 of 100 (Routine)
Marengo	United States	Record daily precipitation	38.1 mm (1.5 in)	23 of 100 (Routine)
Anderson	United States	Record daily precipitation	55.9 mm (2.2 in)	23 of 100 (Routine)
Texarkana Webb Fld	United States	Record daily precipitation	39.4 mm (1.6 in)	23 of 100 (Routine)
Neosho	United States	Record daily precipitation	73.7 mm (2.9 in)	22 of 100 (Routine)
Lawrenceville 2 S	United States	Record daily precipitation	26.7 mm (1.1 in)	22 of 100 (Routine)
Vanersborg	Sweden	Record daily precipitation	21.0 mm (0.8 in)	20 of 100 (Routine)
Jeffersonville	United States	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Groningen-1	Netherlands	Record daily precipitation	18.4 mm (0.7 in)	20 of 100 (Routine)
Fayetteville Exp STN	United States	Record daily precipitation	47.0 mm (1.9 in)	20 of 100 (Routine)
Albury	Australia	Record daily precipitation	15.5 mm (0.6 in)	19 of 100 (Routine)
Middle Creek (Leneva)	Australia	Record daily precipitation	24.1 mm (0.9 in)	19 of 100 (Routine)
Barkerville	Canada	Record daily precipitation	16.3 mm (0.6 in)	19 of 100 (Routine)
Oksoey Fyr	Norway	Record daily precipitation	22.0 mm (0.9 in)	19 of 100 (Routine)
Kristianstad	Sweden	Record high minimum temperature	14.0 C (57.2 F)	19 of 100 (Routine)
Fulton	United States	Record daily precipitation	33.5 mm (1.3 in)	19 of 100 (Routine)
Grafton	United States	Record daily precipitation	38.6 mm (1.5 in)	19 of 100 (Routine)
Seymour 1 WSW	United States	Record daily precipitation	24.1 mm (0.9 in)	19 of 100 (Routine)
Koshkonong	United States	Record daily precipitation	43.7 mm (1.7 in)	19 of 100 (Routine)
Augusta	United States	Record high minimum temperature	11.7 C (53.1 F)	19 of 100 (Routine)
Tulsa	United States	Record daily precipitation	19.3 mm (0.8 in)	19 of 100 (Routine)
Rosedale	Australia	Record daily precipitation	25.4 mm (1.0 in)	18 of 100 (Routine)
Anna 4 N	United States	Record daily precipitation	40.9 mm (1.6 in)	18 of 100 (Routine)
Eubank	United States	Record daily precipitation	32.5 mm (1.3 in)	18 of 100 (Routine)
Lakes Entrance Post Office	Australia	Record daily precipitation	21.8 mm (0.9 in)	17 of 100 (Routine)
Bathurst	Canada	Record daily precipitation	14.7 mm (0.6 in)	17 of 100 (Routine)
Pesaro	Italy	Record daily precipitation	34.0 mm (1.3 in)	17 of 100 (Routine)
Hiasen I Sigdal	Norway	Record daily precipitation	27.2 mm (1.1 in)	17 of 100 (Routine)
Camden 1	United States	Record daily precipitation	40.6 mm (1.6 in)	17 of 100 (Routine)
Norwalk	United States	Record high minimum temperature	20.6 C (69.1 F)	17 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	32.0 mm (1.3 in)	17 of 100 (Routine)
Elatma	Russia	Record low minimum temperature	-0.9 C (30.4 F)	16 of 100 (Routine)
Clinton Forestry HQ	United States	Record daily precipitation	36.8 mm (1.4 in)	16 of 100 (Routine)
Portland	United States	Record high minimum temperature	17.8 C (64.0 F)	16 of 100 (Routine)
New Martinsville 4 NNE	United States	Record high minimum temperature	21.7 C (71.1 F)	16 of 100 (Routine)
Galway	Ireland	Record daily precipitation	17.6 mm (0.7 in)	15 of 100 (Routine)
Shenkursk	Russia	Record low minimum temperature	-1.7 C (28.9 F)	15 of 100 (Routine)
Jakutsk	Russia	Record high minimum temperature	7.9 C (46.2 F)	15 of 100 (Routine)
Buckeye	United States	Record low minimum temperature	10.6 C (51.1 F)	15 of 100 (Routine)
Hot Springs 1 NNE	United States	Record daily precipitation	41.1 mm (1.6 in)	15 of 100 (Routine)

Counts by Type and Timescale

235 records

Records set or tied on 15 September 1930 by type: Highest daily maximum 48, Lowest daily maximum 8, Highest daily minimum 64, Lowest daily minimum 11, Heaviest daily rainfall 104.

Records on 15 September 1930 by type
Record type	Records
Highest daily maximum	48
Lowest daily maximum	8
Highest daily minimum	64
Lowest daily minimum	11
Heaviest daily rainfall	104
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1930 by timescale: all-time 0, monthly 2, daily 233.

How Much Records Were Beaten By

175 broken records

Margins by which the 175 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 50.8. Ties are not counted.

Top 20 by Significance

15 September 1930

Top 20 records on 15 September 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1930	Mt Carmel, US	daily rain	71.1 mm (2.8 in)	50.8 mm (2.0 in)	17 years	48 of 100 (Notable)
15 September 1930	Paoli, US	daily rain	66.0 mm (2.6 in)	45.2 mm (1.8 in)	31 years	46 of 100 (Notable)
15 September 1930	Mahackala, RU	daily rain	51.2 mm (2.0 in)	31.8 mm (1.3 in)	29 years	44 of 100 (Notable)
15 September 1930	Mt Vernon, US	daily rain	61.0 mm (2.4 in)	50.8 mm (2.0 in)	17 years	44 of 100 (Notable)
15 September 1930	Salem, US	daily rain	53.3 mm (2.1 in)	44.4 mm (1.7 in)	17 years	44 of 100 (Notable)
15 September 1930	Gravette, US	daily rain	69.9 mm (2.8 in)	36.9 mm (1.5 in)	24 years	34 of 100 (Routine)
15 September 1930	Bremen-Seefahrtschule, DE	daily rain	26.2 mm (1.0 in)	10.5 mm (0.4 in)	27 years	31 of 100 (Routine)
15 September 1930	1 WSW Princeton, US	daily rain	78.0 mm (3.1 in)	38.4 mm (1.5 in)	9 years	31 of 100 (Routine)
15 September 1930	St John Bethlehem Aca, US	daily rain	51.1 mm (2.0 in)	28.5 mm (1.1 in)	17 years	31 of 100 (Routine)
15 September 1930	New Burnside, US	daily rain	54.9 mm (2.2 in)	24.9 mm (1.0 in)	32 years	30 of 100 (Routine)
15 September 1930	Hvar, HR	daily high max	30.5 C (86.9 F)	3.2 C (5.8 F)	43 years	29 of 100 (Routine)
15 September 1930	1 N McLeansboro, US	monthly rain	102.4 mm (4.0 in)	13.2 mm (0.5 in)	25 years	29 of 100 (Routine)
15 September 1930	Palestine, US	daily rain	67.3 mm (2.6 in)	27.4 mm (1.1 in)	17 years	29 of 100 (Routine)
15 September 1930	Scottsburg, US	daily rain	40.6 mm (1.6 in)	19.0 mm (0.7 in)	33 years	29 of 100 (Routine)
15 September 1930	Marble Hill, US	daily rain	45.7 mm (1.8 in)	31.7 mm (1.2 in)	20 years	27 of 100 (Routine)
15 September 1930	Vincennes 4 E, US	daily rain	49.8 mm (2.0 in)	24.4 mm (1.0 in)	17 years	25 of 100 (Routine)
15 September 1930	Washington 1 W, US	daily rain	44.2 mm (1.7 in)	25.9 mm (1.0 in)	16 years	25 of 100 (Routine)
15 September 1930	Anchorage, US	daily rain	29.2 mm (1.1 in)	18.5 mm (0.7 in)	17 years	25 of 100 (Routine)
15 September 1930	Ben Lomond, AU	daily rain	42.4 mm (1.7 in)	17.0 mm (0.7 in)	8 years	24 of 100 (Routine)
15 September 1930	Mt Vernon 3 NE, US	daily rain	59.7 mm (2.4 in)	29.2 mm (1.1 in)	1 year	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

1797 to 1930

Records set or tied on this calendar date in each year from 1797 to 1930. 1930 had 235 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1930-09-15: 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).