Weather Records on 15 September 1927

539 weather records were set or tied worldwide on 15 September 1927. Highest significance: Atlantic City Marina, US.

Key Facts for 15 September 1927

On 15 September 1927, 539 weather records were set or tied at long-record stations worldwide.
506 were record highs and 15 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 524 daily.
Atlantic City Marina set a daily record high maximum temperature of 33.9 C (93.0 F) on 15 September 1927.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 412 records.

Record Map

539 stations

539 station records on 15 September 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Atlantic City Marina	United States	Record high maximum temperature	33.9 C (93.0 F)	37 of 100 (Notable)
Prince Albert	Canada	Record daily precipitation	53.8 mm (2.1 in)	35 of 100 (Notable)
Mont-Aigoual	France	Record daily precipitation	90.0 mm (3.5 in)	34 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high minimum temperature	23.0 C (73.4 F)	32 of 100 (Routine)
Dubuque River	United States	Record daily precipitation	39.9 mm (1.6 in)	30 of 100 (Routine)
Windsor Riverside	Canada	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Trenton 1 NNE	United States	Record high maximum temperature	40.6 C (105.1 F)	26 of 100 (Routine)
Easton	United States	Record high maximum temperature	37.2 C (99.0 F)	25 of 100 (Routine)
Cape May 2 NW	United States	Record high maximum temperature	33.3 C (91.9 F)	24 of 100 (Routine)
Eufaula	United States	Record high maximum temperature	38.3 C (100.9 F)	23 of 100 (Routine)
Alma	United States	Record high maximum temperature	36.1 C (97.0 F)	23 of 100 (Routine)
Fond du Lac Wwtp	United States	Record high maximum temperature	34.4 C (93.9 F)	23 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Hamilton	Canada	Record high maximum temperature	32.2 C (90.0 F)	22 of 100 (Routine)
Chariton 1 E	United States	Record high maximum temperature	37.8 C (100.0 F)	22 of 100 (Routine)
Hohenwald	United States	Record high maximum temperature	38.3 C (100.9 F)	22 of 100 (Routine)
Dubuque River	United States	Record high maximum temperature	33.3 C (91.9 F)	22 of 100 (Routine)
Port Arthur	Canada	Record high maximum temperature	31.1 C (88.0 F)	21 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	30.6 C (87.1 F)	21 of 100 (Routine)
Goodwater	United States	Record high maximum temperature	40.6 C (105.1 F)	21 of 100 (Routine)
Tuscumbia	United States	Record high maximum temperature	38.9 C (102.0 F)	21 of 100 (Routine)
Morrison	United States	Record high maximum temperature	37.2 C (99.0 F)	21 of 100 (Routine)
Ames 3 SW	United States	Record high maximum temperature	36.7 C (98.1 F)	21 of 100 (Routine)
Fayette	United States	Record high maximum temperature	36.7 C (98.1 F)	21 of 100 (Routine)
Humboldt 3 W	United States	Record high maximum temperature	35.6 C (96.1 F)	21 of 100 (Routine)
Murfreesboro 5 N	United States	Record high maximum temperature	38.3 C (100.9 F)	21 of 100 (Routine)
Sycamore	United States	Record high maximum temperature	36.7 C (98.1 F)	20 of 100 (Routine)
Iowa Falls	United States	Record high maximum temperature	34.4 C (93.9 F)	20 of 100 (Routine)
Marshalltown	United States	Record high maximum temperature	37.2 C (99.0 F)	20 of 100 (Routine)
Conception	United States	Record high maximum temperature	36.7 C (98.1 F)	20 of 100 (Routine)
Lynnville 4 SSW	United States	Record high maximum temperature	38.3 C (100.9 F)	20 of 100 (Routine)
Rugby	United States	Record high maximum temperature	36.1 C (97.0 F)	20 of 100 (Routine)
Racine Wwtp	United States	Record high maximum temperature	36.7 C (98.1 F)	20 of 100 (Routine)
Washington	United States	Record high maximum temperature	36.1 C (97.0 F)	20 of 100 (Routine)
Husum	Germany	Record low minimum temperature	2.2 C (36.0 F)	19 of 100 (Routine)
Montgomery Wb City	United States	Record high maximum temperature	38.3 C (100.9 F)	19 of 100 (Routine)
Belle Plaine	United States	Record high maximum temperature	36.1 C (97.0 F)	19 of 100 (Routine)
Indianola 1SW	United States	Record high maximum temperature	37.2 C (99.0 F)	19 of 100 (Routine)
Washington	United States	Record high maximum temperature	37.2 C (99.0 F)	19 of 100 (Routine)
Urbana Wrf	United States	Record high maximum temperature	37.2 C (99.0 F)	19 of 100 (Routine)
Menno	United States	Record daily precipitation	40.9 mm (1.6 in)	19 of 100 (Routine)
Palmetto	United States	Record high maximum temperature	38.3 C (100.9 F)	19 of 100 (Routine)
Fredericksburg Np	United States	Record high maximum temperature	36.7 C (98.1 F)	19 of 100 (Routine)
Beloit	United States	Record high maximum temperature	34.4 C (93.9 F)	19 of 100 (Routine)
Racine Wwtp	United States	Record high minimum temperature	23.9 C (75.0 F)	19 of 100 (Routine)
Gorki	Belarus	Record daily precipitation	13.2 mm (0.5 in)	18 of 100 (Routine)
Welland	Canada	Record high maximum temperature	33.3 C (91.9 F)	18 of 100 (Routine)
Vestervig	Denmark	Record low minimum temperature	2.9 C (37.2 F)	18 of 100 (Routine)
Afton	United States	Record high maximum temperature	37.8 C (100.0 F)	18 of 100 (Routine)
Algona	United States	Record high maximum temperature	33.3 C (91.9 F)	18 of 100 (Routine)
Clinton #1	United States	Record high maximum temperature	35.0 C (95.0 F)	18 of 100 (Routine)
Decorah	United States	Record high maximum temperature	34.4 C (93.9 F)	18 of 100 (Routine)
Knoxville	United States	Record high maximum temperature	37.2 C (99.0 F)	18 of 100 (Routine)
Washington	United States	Record high minimum temperature	23.3 C (73.9 F)	18 of 100 (Routine)
Winterset 4N	United States	Record high minimum temperature	22.8 C (73.0 F)	18 of 100 (Routine)
Louisburg	United States	Record high maximum temperature	36.1 C (97.0 F)	18 of 100 (Routine)
Hamburg	United States	Record high maximum temperature	33.9 C (93.0 F)	18 of 100 (Routine)
Florence	United States	Record high maximum temperature	31.1 C (88.0 F)	18 of 100 (Routine)
Madison Wb City	United States	Record high minimum temperature	23.3 C (73.9 F)	18 of 100 (Routine)
Prairie du Chien	United States	Record high maximum temperature	36.1 C (97.0 F)	18 of 100 (Routine)

Counts by Type and Timescale

539 records

Records set or tied on 15 September 1927 by type: Highest daily maximum 359, Lowest daily maximum 3, Highest daily minimum 147, Lowest daily minimum 12, Heaviest daily rainfall 18.

Records on 15 September 1927 by type
Record type	Records
Highest daily maximum	359
Lowest daily maximum	3
Highest daily minimum	147
Lowest daily minimum	12
Heaviest daily rainfall	18
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1927 by timescale: all-time 0, monthly 15, daily 524.

How Much Records Were Beaten By

410 broken records

Margins by which the 410 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 80.0. Ties are not counted.

Top 20 by Significance

15 September 1927

Top 20 records on 15 September 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1927	Atlantic City Marina, US	daily high max	33.9 C (93.0 F)	6.7 C (12.1 F)	41 years	37 of 100 (Notable)
15 September 1927	Prince Albert, CA	monthly rain	53.8 mm (2.1 in)	13.2 mm (0.5 in)	8 years	35 of 100 (Notable)
15 September 1927	Mont-Aigoual, FR	daily rain	90.0 mm (3.5 in)	80.0 mm (3.1 in)	25 years	34 of 100 (Routine)
15 September 1927	Oran-Hopital Militaire, DZ	daily high min	23.0 C (73.4 F)	0.7 C (1.3 F)	73 years	32 of 100 (Routine)
15 September 1927	Dubuque River, US	daily rain	39.9 mm (1.6 in)	20.6 mm (0.8 in)	42 years	30 of 100 (Routine)
15 September 1927	Windsor Riverside, CA	daily high max	35.0 C (95.0 F)	3.9 C (7.0 F)	43 years	26 of 100 (Routine)
15 September 1927	Trenton 1 NNE, US	daily high max	40.6 C (105.1 F)	6.2 C (11.2 F)	29 years	26 of 100 (Routine)
15 September 1927	Easton, US	monthly high max	37.2 C (99.0 F)	1.6 C (2.9 F)	29 years	25 of 100 (Routine)
15 September 1927	Cape May 2 NW, US	daily high max	33.3 C (91.9 F)	5.5 C (9.9 F)	12 years	24 of 100 (Routine)
15 September 1927	Eufaula, US	daily high max	38.3 C (100.9 F)	3.9 C (7.0 F)	30 years	23 of 100 (Routine)
15 September 1927	Alma, US	monthly high max	36.1 C (97.0 F)	0.5 C (0.9 F)	30 years	23 of 100 (Routine)
15 September 1927	Fond du Lac Wwtp, US	daily high max	34.4 C (93.9 F)	6.1 C (11.0 F)	32 years	23 of 100 (Routine)
15 September 1927	Southampton, CA	daily high min	18.3 C (64.9 F)	1.6 C (2.9 F)	49 years	22 of 100 (Routine)
15 September 1927	Hamilton, CA	daily high max	32.2 C (90.0 F)	1.1 C (2.0 F)	49 years	22 of 100 (Routine)
15 September 1927	Chariton 1 E, US	daily high max	37.8 C (100.0 F)	5.6 C (10.1 F)	31 years	22 of 100 (Routine)
15 September 1927	Hohenwald, US	daily high max	38.3 C (100.9 F)	4.4 C (7.9 F)	30 years	22 of 100 (Routine)
15 September 1927	Dubuque River, US	daily high max	33.3 C (91.9 F)	2.7 C (4.9 F)	42 years	22 of 100 (Routine)
15 September 1927	Port Arthur, CA	daily high max	31.1 C (88.0 F)	6.1 C (11.0 F)	6 years	21 of 100 (Routine)
15 September 1927	Woodstock, CA	daily high max	30.6 C (87.1 F)	1.2 C (2.2 F)	49 years	21 of 100 (Routine)
15 September 1927	Goodwater, US	daily high max	40.6 C (105.1 F)	3.9 C (7.0 F)	30 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

1797 to 1927

Records set or tied on this calendar date in each year from 1797 to 1927. 1927 had 539 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 1927-09-15: 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).

Margin	Records
0 to 10	402
10 to 20	5
20 to 30	2
30 to 40	0
40 to 50	0
50 to 60	0
60 to 70	0
70 to 80	1