Weather Records on 17 September 1945

614 weather records were set or tied worldwide on 17 September 1945. Highest significance: Darlington, US.

Key Facts for 17 September 1945

On 17 September 1945, 614 weather records were set or tied at long-record stations worldwide.
64 were record highs and 288 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 11 monthly and 600 daily.
Darlington set a daily record precipitation of 177.8 mm (7.0 in) on 17 September 1945.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 422 records.

Record Map

614 stations

614 station records on 17 September 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Darlington	United States	Record daily precipitation	177.8 mm (7.0 in)	58 of 100 (Notable)
Welland	Canada	Record daily precipitation	48.8 mm (1.9 in)	56 of 100 (Notable)
Morganton	United States	Record daily precipitation	132.8 mm (5.2 in)	56 of 100 (Notable)
Summerville 4W	United States	Record daily precipitation	172.7 mm (6.8 in)	55 of 100 (Notable)
St Augustine	United States	Record daily precipitation	167.6 mm (6.6 in)	52 of 100 (Notable)
Powers Lake 1N	United States	Record daily precipitation	45.2 mm (1.8 in)	52 of 100 (Notable)
Danville 2 SE	United States	Record daily precipitation	61.2 mm (2.4 in)	52 of 100 (Notable)
Mokakchung	India	Record daily precipitation	101.6 mm (4.0 in)	51 of 100 (Notable)
Moncure 3 SE	United States	Record daily precipitation	85.6 mm (3.4 in)	51 of 100 (Notable)
Cheraw	United States	Record daily precipitation	96.5 mm (3.8 in)	50 of 100 (Notable)
Albemarle	United States	Record daily precipitation	146.1 mm (5.8 in)	49 of 100 (Notable)
Jena Sternwarte	Germany	Record high minimum temperature	17.2 C (63.0 F)	47 of 100 (Notable)
Kangra	India	Record daily precipitation	174.0 mm (6.9 in)	47 of 100 (Notable)
Graham 2 ENE	United States	Record daily precipitation	85.1 mm (3.4 in)	47 of 100 (Notable)
Southern Pines 2 W	United States	Record daily precipitation	104.1 mm (4.1 in)	47 of 100 (Notable)
Statesville 2 NNE	United States	Record daily precipitation	101.6 mm (4.0 in)	47 of 100 (Notable)
Roanoke	United States	Record daily precipitation	132.8 mm (5.2 in)	46 of 100 (Notable)
Richmond Chimborazo Pk	United States	Record daily precipitation	62.7 mm (2.5 in)	46 of 100 (Notable)
Lenoir	United States	Record daily precipitation	87.9 mm (3.5 in)	44 of 100 (Notable)
Camden 3 W	United States	Record daily precipitation	104.6 mm (4.1 in)	43 of 100 (Notable)
Effingham	United States	Record daily precipitation	113.3 mm (4.5 in)	43 of 100 (Notable)
Dharmsala Lower	India	Record daily precipitation	138.7 mm (5.5 in)	42 of 100 (Notable)
Kadipur	India	Record daily precipitation	106.4 mm (4.2 in)	42 of 100 (Notable)
Dwtn Charleston	United States	Record daily precipitation	119.6 mm (4.7 in)	42 of 100 (Notable)
Winston Salem Reynolds AP	United States	Record daily precipitation	73.7 mm (2.9 in)	42 of 100 (Notable)
Clear Spring 1 ENE	United States	Record daily precipitation	59.4 mm (2.3 in)	41 of 100 (Notable)
Raleigh State UNIV	United States	Record daily precipitation	79.8 mm (3.1 in)	41 of 100 (Notable)
Virginia City	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Bikapur	India	Record daily precipitation	113.0 mm (4.4 in)	39 of 100 (Notable)
Randleman	United States	Record daily precipitation	81.3 mm (3.2 in)	39 of 100 (Notable)
Reidsville	United States	Record daily precipitation	69.6 mm (2.7 in)	39 of 100 (Notable)
Salisbury	United States	Record daily precipitation	86.6 mm (3.4 in)	39 of 100 (Notable)
Queen Charlotte City	Canada	Record daily precipitation	53.3 mm (2.1 in)	38 of 100 (Notable)
Marshall	United States	Record daily precipitation	41.9 mm (1.6 in)	38 of 100 (Notable)
Kingstree	United States	Record daily precipitation	111.8 mm (4.4 in)	38 of 100 (Notable)
Santuck	United States	Record daily precipitation	77.0 mm (3.0 in)	38 of 100 (Notable)
Newark Liberty Intl AP	United States	Record low maximum temperature	13.3 C (55.9 F)	38 of 100 (Notable)
Toronto Agincourt	Canada	Record daily precipitation	36.8 mm (1.4 in)	37 of 100 (Notable)
Jeypore	India	Record daily precipitation	102.1 mm (4.0 in)	37 of 100 (Notable)
Aberfoyle	Australia	Record daily precipitation	27.2 mm (1.1 in)	36 of 100 (Notable)
Marlinton	United States	Record daily precipitation	49.5 mm (1.9 in)	36 of 100 (Notable)
White Sulphur Springs	United States	Record daily precipitation	33.5 mm (1.3 in)	35 of 100 (Notable)
Hickory	United States	Record daily precipitation	91.4 mm (3.6 in)	34 of 100 (Routine)
Tenterden	Australia	Record daily precipitation	43.2 mm (1.7 in)	33 of 100 (Routine)
Caldwell	Canada	Record daily snowfall	10.2 cm (4.0 in)	33 of 100 (Routine)
Samastipur	India	Record daily precipitation	122.9 mm (4.8 in)	33 of 100 (Routine)
Mahul Pnulpur	India	Record daily precipitation	288.8 mm (11.4 in)	33 of 100 (Routine)
Trenton 2	United States	Record low maximum temperature	14.4 C (57.9 F)	33 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record daily precipitation	76.7 mm (3.0 in)	33 of 100 (Routine)
Simcoe	Canada	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Araria	India	Record daily precipitation	184.4 mm (7.3 in)	32 of 100 (Routine)
Monroe 2 SE	United States	Record daily precipitation	65.3 mm (2.6 in)	32 of 100 (Routine)
Riddle	United States	Record high minimum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Little Mtn	United States	Record daily precipitation	66.5 mm (2.6 in)	32 of 100 (Routine)
Yemassee 1 N	United States	Record daily precipitation	152.4 mm (6.0 in)	32 of 100 (Routine)
Bluefield 2 NW	United States	Record daily precipitation	41.7 mm (1.6 in)	32 of 100 (Routine)
Frederick Police Brks	United States	Record daily precipitation	48.8 mm (1.9 in)	31 of 100 (Routine)
Catawba	United States	Record daily precipitation	58.9 mm (2.3 in)	31 of 100 (Routine)
Blacksburg	United States	Record daily precipitation	47.0 mm (1.9 in)	31 of 100 (Routine)
Dale Enterprise	United States	Record daily precipitation	33.5 mm (1.3 in)	31 of 100 (Routine)

Counts by Type and Timescale

614 records

Records set or tied on 17 September 1945 by type: Highest daily maximum 16, Lowest daily maximum 195, Highest daily minimum 48, Lowest daily minimum 93, Heaviest daily rainfall 249, Heaviest daily snowfall 13.

Records on 17 September 1945 by type
Record type	Records
Highest daily maximum	16
Lowest daily maximum	195
Highest daily minimum	48
Lowest daily minimum	93
Heaviest daily rainfall	249
Heaviest daily snowfall	13
Deepest snow cover	0

Records on 17 September 1945 by timescale: all-time 3, monthly 11, daily 600.

How Much Records Were Beaten By

523 broken records

Margins by which the 523 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 135.9. Ties are not counted.

Top 20 by Significance

17 September 1945

Top 20 records on 17 September 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1945	Darlington, US	daily rain	177.8 mm (7.0 in)	100.3 mm (3.9 in)	44 years	58 of 100 (Notable)
17 September 1945	Welland, CA	daily rain	48.8 mm (1.9 in)	32.8 mm (1.3 in)	40 years	56 of 100 (Notable)
17 September 1945	Morganton, US	daily rain	132.8 mm (5.2 in)	83.5 mm (3.3 in)	36 years	56 of 100 (Notable)
17 September 1945	Summerville 4W, US	daily rain	172.7 mm (6.8 in)	130.5 mm (5.1 in)	39 years	55 of 100 (Notable)
17 September 1945	St Augustine, US	monthly rain	167.6 mm (6.6 in)	41.9 mm (1.6 in)	50 years	52 of 100 (Notable)
17 September 1945	Powers Lake 1N, US	daily rain	45.2 mm (1.8 in)	45.2 mm (1.8 in)	31 years	52 of 100 (Notable)
17 September 1945	Danville 2 SE, US	daily rain	61.2 mm (2.4 in)	50.0 mm (2.0 in)	42 years	52 of 100 (Notable)
17 September 1945	Mokakchung, IN	daily rain	101.6 mm (4.0 in)	66.5 mm (2.6 in)	26 years	51 of 100 (Notable)
17 September 1945	Moncure 3 SE, US	daily rain	85.6 mm (3.4 in)	71.6 mm (2.8 in)	20 years	51 of 100 (Notable)
17 September 1945	Cheraw, US	daily rain	96.5 mm (3.8 in)	57.4 mm (2.3 in)	44 years	50 of 100 (Notable)
17 September 1945	Albemarle, US	all-time rain	146.1 mm (5.8 in)	26.7 mm (1.1 in)	29 years	49 of 100 (Notable)
17 September 1945	Jena Sternwarte, DE	daily high min	17.2 C (63.0 F)	2.6 C (4.7 F)	114 years	47 of 100 (Notable)
17 September 1945	Kangra, IN	daily rain	174.0 mm (6.9 in)	135.9 mm (5.4 in)	10 years	47 of 100 (Notable)
17 September 1945	Graham 2 ENE, US	daily rain	85.1 mm (3.4 in)	58.2 mm (2.3 in)	42 years	47 of 100 (Notable)
17 September 1945	Southern Pines 2 W, US	daily rain	104.1 mm (4.1 in)	60.2 mm (2.4 in)	36 years	47 of 100 (Notable)
17 September 1945	Statesville 2 NNE, US	daily rain	101.6 mm (4.0 in)	63.8 mm (2.5 in)	16 years	47 of 100 (Notable)
17 September 1945	Roanoke, US	daily rain	132.8 mm (5.2 in)	59.1 mm (2.3 in)	42 years	46 of 100 (Notable)
17 September 1945	Richmond Chimborazo Pk, US	daily rain	62.7 mm (2.5 in)	42.6 mm (1.7 in)	42 years	46 of 100 (Notable)
17 September 1945	Lenoir, US	daily rain	87.9 mm (3.5 in)	47.3 mm (1.9 in)	61 years	44 of 100 (Notable)
17 September 1945	Camden 3 W, US	daily rain	104.6 mm (4.1 in)	53.8 mm (2.1 in)	32 years	43 of 100 (Notable)

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 1945

Records set or tied on this calendar date in each year from 1796 to 1945. 1945 had 614 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 1945-09-17: 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).

Margin	Records
0 to 20	435
20 to 40	46
40 to 60	22
60 to 80	10
80 to 100	5
100 to 120	3
120 to 140	2