Weather Records on 17 September 1924

80 weather records were set or tied worldwide on 17 September 1924. Highest significance: Millsboro, US.

Key Facts for 17 September 1924

On 17 September 1924, 80 weather records were set or tied at long-record stations worldwide.
13 were record highs and 55 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 78 daily.
Millsboro set a daily record precipitation of 45.2 mm (1.8 in) on 17 September 1924.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 425 records.

Record Map

80 stations

80 station records on 17 September 1924 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1924: highest significance records shown on the map
Station	Country	Type	Value	Significance
Millsboro	United States	Record daily precipitation	45.2 mm (1.8 in)	35 of 100 (Notable)
Athens	United States	Record low maximum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Kingstree	United States	Record daily precipitation	55.9 mm (2.2 in)	32 of 100 (Routine)
Southport 5 N	United States	Record daily precipitation	82.3 mm (3.2 in)	28 of 100 (Routine)
Runnymede Spottsville	United States	Record daily precipitation	46.5 mm (1.8 in)	28 of 100 (Routine)
Philadelphia City	United States	Record low maximum temperature	16.7 C (62.1 F)	28 of 100 (Routine)
Ny City Cntrl Park	United States	Record low maximum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
World Trade Ctr	United States	Record low maximum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Somerville 4 NW	United States	Record low maximum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Washington	United States	Record low maximum temperature	17.8 C (64.0 F)	21 of 100 (Routine)
Storrs	United States	Record low maximum temperature	13.3 C (55.9 F)	20 of 100 (Routine)
Norwalk	United States	Record low maximum temperature	14.4 C (57.9 F)	19 of 100 (Routine)
Conway	United States	Record daily precipitation	105.2 mm (4.1 in)	19 of 100 (Routine)
Pawtucket	United States	Record low maximum temperature	15.0 C (59.0 F)	18 of 100 (Routine)
Eutawville	United States	Record low maximum temperature	19.4 C (66.9 F)	18 of 100 (Routine)
Arapaho	United States	Record low maximum temperature	15.6 C (60.1 F)	17 of 100 (Routine)
Coatesville 1 SW	United States	Record low maximum temperature	17.8 C (64.0 F)	17 of 100 (Routine)
Boston City WSO	United States	Record low maximum temperature	15.0 C (59.0 F)	17 of 100 (Routine)
Cape May 2 NW	United States	Record low maximum temperature	15.6 C (60.1 F)	16 of 100 (Routine)
Easton	United States	Record daily precipitation	18.3 mm (0.7 in)	15 of 100 (Routine)
Westboro	United States	Record low maximum temperature	16.7 C (62.1 F)	15 of 100 (Routine)
Dover	United States	Record low maximum temperature	17.2 C (63.0 F)	15 of 100 (Routine)
Lambertville River	United States	Record low maximum temperature	15.6 C (60.1 F)	15 of 100 (Routine)
Wappingers Falls	United States	Record low maximum temperature	15.6 C (60.1 F)	15 of 100 (Routine)
Ashland	United States	Record low maximum temperature	16.7 C (62.1 F)	15 of 100 (Routine)
Abbeville	United States	Record high maximum temperature	35.6 C (96.1 F)	14 of 100 (Routine)
Darlington	United States	Record low maximum temperature	18.9 C (66.0 F)	14 of 100 (Routine)
Solomons	United States	Record daily precipitation	17.0 mm (0.7 in)	14 of 100 (Routine)
Woodstock	United States	Record low maximum temperature	18.3 C (64.9 F)	14 of 100 (Routine)
Elizabeth	United States	Record low maximum temperature	19.4 C (66.9 F)	14 of 100 (Routine)
Tarboro 1 S	United States	Record daily precipitation	51.6 mm (2.0 in)	14 of 100 (Routine)
Winkelman 6 S	United States	Record high minimum temperature	24.4 C (75.9 F)	13 of 100 (Routine)
Colchester 2 W	United States	Record low maximum temperature	16.7 C (62.1 F)	13 of 100 (Routine)
Plainfield	United States	Record low maximum temperature	15.6 C (60.1 F)	13 of 100 (Routine)
Gunnedah Pool	Australia	Record low minimum temperature	-0.6 C (30.9 F)	12 of 100 (Routine)
Lebanon 3 W	United States	Record low maximum temperature	20.0 C (68.0 F)	12 of 100 (Routine)
Runnymede Spottsville	United States	Record low maximum temperature	17.8 C (64.0 F)	12 of 100 (Routine)
Timovskoe	Russia	Record low minimum temperature	-2.5 C (27.5 F)	11 of 100 (Routine)
Belvidere	United States	Record low maximum temperature	17.8 C (64.0 F)	11 of 100 (Routine)
Tarboro 1 S	United States	Record low maximum temperature	19.4 C (66.9 F)	11 of 100 (Routine)
Swift Current	Canada	Record high maximum temperature	30.6 C (87.1 F)	10 of 100 (Routine)
Owen Sound	Canada	Record low minimum temperature	3.9 C (39.0 F)	10 of 100 (Routine)
College Park	United States	Record low maximum temperature	18.9 C (66.0 F)	10 of 100 (Routine)
Ashland	United States	Record daily precipitation	12.2 mm (0.5 in)	10 of 100 (Routine)
Taunton	United States	Record low maximum temperature	12.8 C (55.0 F)	10 of 100 (Routine)
Moorestown 4 E	United States	Record low maximum temperature	17.8 C (64.0 F)	10 of 100 (Routine)
Odesa	Ukraine	Record daily precipitation	20.0 mm (0.8 in)	9 of 100 (Routine)
Union Springs 9 S	United States	Record low maximum temperature	23.9 C (75.0 F)	9 of 100 (Routine)
Easton	United States	Record low maximum temperature	17.8 C (64.0 F)	9 of 100 (Routine)
Solomons	United States	Record low maximum temperature	18.3 C (64.9 F)	9 of 100 (Routine)
Fredericksburg Np	United States	Record low maximum temperature	18.9 C (66.0 F)	9 of 100 (Routine)
Battleford	Canada	Record high maximum temperature	29.4 C (84.9 F)	8 of 100 (Routine)
Fall River	United States	Record low maximum temperature	14.4 C (57.9 F)	8 of 100 (Routine)
Weldon	United States	Record low maximum temperature	17.8 C (64.0 F)	8 of 100 (Routine)
Millsboro	United States	Record low maximum temperature	18.3 C (64.9 F)	7 of 100 (Routine)
Melville	United States	Record low minimum temperature	11.7 C (53.1 F)	7 of 100 (Routine)
Louisburg	United States	Record low maximum temperature	20.0 C (68.0 F)	7 of 100 (Routine)
Lawrence	United States	Record low maximum temperature	16.7 C (62.1 F)	6 of 100 (Routine)
Effingham	United States	Record daily precipitation	42.4 mm (1.7 in)	6 of 100 (Routine)
Woodville 4 ESE	United States	Record high maximum temperature	36.7 C (98.1 F)	5 of 100 (Routine)

Counts by Type and Timescale

80 records

Records set or tied on 17 September 1924 by type: Highest daily maximum 8, Lowest daily maximum 48, Highest daily minimum 5, Lowest daily minimum 7, Heaviest daily rainfall 12.

Records on 17 September 1924 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	48
Highest daily minimum	5
Lowest daily minimum	7
Heaviest daily rainfall	12
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 September 1924 by timescale: all-time 0, monthly 2, daily 78.

How Much Records Were Beaten By

61 broken records

Margins by which the 61 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 41.9. Ties are not counted.

Top 20 by Significance

17 September 1924

Top 20 records on 17 September 1924 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1924	Millsboro, US	daily rain	45.2 mm (1.8 in)	37.3 mm (1.5 in)	21 years	35 of 100 (Notable)
17 September 1924	Athens, US	daily low max	18.9 C (66.0 F)	3.0 C (5.4 F)	65 years	32 of 100 (Routine)
17 September 1924	Kingstree, US	daily rain	55.9 mm (2.2 in)	40.9 mm (1.6 in)	10 years	32 of 100 (Routine)
17 September 1924	Southport 5 N, US	daily rain	82.3 mm (3.2 in)	41.9 mm (1.6 in)	19 years	28 of 100 (Routine)
17 September 1924	Runnymede Spottsville, US	daily rain	46.5 mm (1.8 in)	26.2 mm (1.0 in)	21 years	28 of 100 (Routine)
17 September 1924	Philadelphia City, US	daily low max	16.7 C (62.1 F)	3.9 C (7.0 F)	49 years	28 of 100 (Routine)
17 September 1924	Ny City Cntrl Park, US	daily low max	16.1 C (61.0 F)	2.8 C (5.0 F)	54 years	27 of 100 (Routine)
17 September 1924	World Trade Ctr, US	daily low max	16.7 C (62.1 F)	2.2 C (4.0 F)	51 years	25 of 100 (Routine)
17 September 1924	Somerville 4 NW, US	daily low max	18.3 C (64.9 F)	3.4 C (6.1 F)	38 years	22 of 100 (Routine)
17 September 1924	Washington, US	daily low max	17.8 C (64.0 F)	1.7 C (3.1 F)	36 years	21 of 100 (Routine)
17 September 1924	Storrs, US	daily low max	13.3 C (55.9 F)	3.4 C (6.1 F)	30 years	20 of 100 (Routine)
17 September 1924	Norwalk, US	daily low max	14.4 C (57.9 F)	5.6 C (10.1 F)	7 years	19 of 100 (Routine)
17 September 1924	Conway, US	monthly rain	105.2 mm (4.1 in)	1.1 mm (0.04 in)	22 years	19 of 100 (Routine)
17 September 1924	Pawtucket, US	daily low max	15.0 C (59.0 F)	2.8 C (5.0 F)	30 years	18 of 100 (Routine)
17 September 1924	Eutawville, US	daily low max	19.4 C (66.9 F)	2.8 C (5.0 F)	24 years	18 of 100 (Routine)
17 September 1924	Arapaho, US	daily low max	15.6 C (60.1 F)	3.3 C (5.9 F)	26 years	17 of 100 (Routine)
17 September 1924	Coatesville 1 SW, US	daily low max	17.8 C (64.0 F)	3.3 C (5.9 F)	24 years	17 of 100 (Routine)
17 September 1924	Boston City WSO, US	daily low max	15.0 C (59.0 F)	2.8 C (5.0 F)	30 years	17 of 100 (Routine)
17 September 1924	Cape May 2 NW, US	daily low max	15.6 C (60.1 F)	3.3 C (5.9 F)	7 years	16 of 100 (Routine)
17 September 1924	Easton, US	daily rain	18.3 mm (0.7 in)	9.9 mm (0.39 in)	21 years	15 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

1796 to 1924

Records set or tied on this calendar date in each year from 1796 to 1924. 1924 had 80 records.

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

Records on 09-17 in each year
Year	Records
1796	1
1797	1
1805	1
1833	1
1834	1
1837	2
1845	1
1847	3
1848	1
1850	1
1851	2
1853	2
1854	2
1859	1
1862	1
1867	1
1870	1
1871	1
1872	1
1873	1
1874	1
1875	1
1877	1
1881	1
1882	2
1884	3
1885	3
1886	6
1888	2
1889	8
1891	1
1893	3
1894	1
1895	4
1896	9
1897	4
1898	7
1899	1
1900	4
1901	5
1902	5
1903	28
1904	2
1905	17
1906	10
1907	15
1908	13
1909	7
1910	38
1911	15
1912	17
1913	28
1914	38
1915	48
1916	40
1917	255
1918	41
1919	21
1920	40
1921	66
1922	47
1923	159
1924	80
1925	338
1926	154
1927	420
1928	78
1929	168
1930	147
1931	564
1932	425
1933	415
1934	246
1935	321
1936	219
1937	463
1938	363
1939	294
1940	326
1941	328
1942	581
1943	513
1944	403
1945	614
1946	620
1947	680
1948	630
1949	292
1950	412
1951	359
1952	263
1953	344
1954	449
1955	649
1956	437
1957	405
1958	806
1959	1,210
1960	385
1961	657
1962	432
1963	297
1964	559
1965	1,394
1966	523
1967	331
1968	691
1969	352
1970	412
1971	898
1972	556
1973	638
1974	491
1975	478
1976	636
1977	641
1978	764
1979	804
1980	794
1981	1,155
1982	606
1983	862
1984	1,006
1985	448
1986	1,314
1987	926
1988	982
1989	863
1990	650
1991	1,407
1992	686
1993	950
1994	986
1995	1,145
1996	1,342
1997	1,057
1998	1,137
1999	1,102
2000	1,318
2001	895
2002	1,025
2003	586
2004	872
2005	1,042
2006	1,344
2007	752
2008	886
2009	871
2010	907
2011	1,116
2012	597
2013	1,253
2014	571
2015	953
2016	707
2017	455
2018	899
2019	774
2020	651
2021	345
2022	313
2023	646
2024	954
2025	634
2026	968

Download the Data

Data for records on 1924-09-17: 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).

Histogram of margins by which records were beaten on 17 September 1924
Margin	Records
0 to 10	56
10 to 20	1
20 to 30	1
30 to 40	1
40 to 50	2