Weather Records on 17 September 1944

403 weather records were set or tied worldwide on 17 September 1944. Highest significance: Mummidivaram, IN.

Key Facts for 17 September 1944

On 17 September 1944, 403 weather records were set or tied at long-record stations worldwide.
63 were record highs and 114 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 396 daily.
Mummidivaram set a daily record precipitation of 129.5 mm (5.1 in) on 17 September 1944.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 423 records.

Record Map

403 stations

403 station records on 17 September 1944 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1944: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mummidivaram	India	Record daily precipitation	129.5 mm (5.1 in)	49 of 100 (Notable)
Gingindlovu	South Africa	Record daily precipitation	43.7 mm (1.7 in)	49 of 100 (Notable)
Amersfoort (Pol)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	49 of 100 (Notable)
Pittsworth	Australia	Record daily precipitation	57.4 mm (2.3 in)	48 of 100 (Notable)
De Emigratie	South Africa	Record daily precipitation	43.2 mm (1.7 in)	48 of 100 (Notable)
Bizana (Bos)	South Africa	Record daily precipitation	36.3 mm (1.4 in)	47 of 100 (Notable)
Tonti (Bos)	South Africa	Record daily precipitation	46.7 mm (1.8 in)	46 of 100 (Notable)
Dharwar	India	Record daily precipitation	57.4 mm (2.3 in)	45 of 100 (Notable)
Lake Yellowstone	United States	Record daily snowfall	17.8 cm (7.0 in)	45 of 100 (Notable)
Pimpalgaon	India	Record daily precipitation	74.9 mm (2.9 in)	42 of 100 (Notable)
Quincy	United States	Record daily precipitation	58.9 mm (2.3 in)	41 of 100 (Notable)
Quincy Mem Brg	United States	Record daily precipitation	66.5 mm (2.6 in)	41 of 100 (Notable)
Elandshoek, Boston	South Africa	Record daily precipitation	38.4 mm (1.5 in)	40 of 100 (Notable)
Umtata	South Africa	Record daily precipitation	41.4 mm (1.6 in)	39 of 100 (Notable)
Akola	India	Record daily precipitation	69.3 mm (2.7 in)	37 of 100 (Notable)
Botanic Gardens - Pmb	South Africa	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Balgownie West	Australia	Record daily precipitation	44.2 mm (1.7 in)	35 of 100 (Notable)
Columboola	Australia	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Mvenyane	South Africa	Record daily precipitation	47.8 mm (1.9 in)	35 of 100 (Notable)
Blakefield	Australia	Record daily precipitation	35.8 mm (1.4 in)	34 of 100 (Routine)
Belah Park	Australia	Record daily precipitation	28.4 mm (1.1 in)	34 of 100 (Routine)
Dulacca Truck Stop	Australia	Record daily precipitation	32.0 mm (1.3 in)	34 of 100 (Routine)
Rietpoort	South Africa	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Bergplaats	South Africa	Record daily precipitation	38.1 mm (1.5 in)	34 of 100 (Routine)
Warra Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Western Creek	Australia	Record daily precipitation	29.2 mm (1.1 in)	33 of 100 (Routine)
Paardekopplaas	South Africa	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Loretta	Australia	Record daily precipitation	36.1 mm (1.4 in)	32 of 100 (Routine)
Flagstaff (Tnk)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	32 of 100 (Routine)
Woudzicht	South Africa	Record daily precipitation	31.2 mm (1.2 in)	32 of 100 (Routine)
Fernflat	Australia	Record daily precipitation	29.7 mm (1.2 in)	31 of 100 (Routine)
Westbrook	Australia	Record daily precipitation	43.2 mm (1.7 in)	31 of 100 (Routine)
Kloofend	South Africa	Record daily precipitation	39.9 mm (1.6 in)	31 of 100 (Routine)
Durban-Botanical Gardens	South Africa	Record daily precipitation	37.1 mm (1.5 in)	31 of 100 (Routine)
Bowenville	Australia	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Greenmount Post Office	Australia	Record daily precipitation	50.3 mm (2.0 in)	30 of 100 (Routine)
Tara Shire Council	Australia	Record daily precipitation	27.4 mm (1.1 in)	30 of 100 (Routine)
Back Plains	Australia	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Cambooya Post Office	Australia	Record daily precipitation	35.3 mm (1.4 in)	29 of 100 (Routine)
Izeleni (Bos)	South Africa	Record daily precipitation	34.3 mm (1.4 in)	29 of 100 (Routine)
Baziya (Bos)	South Africa	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Balbrogie	South Africa	Record daily precipitation	47.5 mm (1.9 in)	29 of 100 (Routine)
New Smyrna Beach	United States	Record daily precipitation	86.1 mm (3.4 in)	28 of 100 (Routine)
Condamine Plains	Australia	Record daily precipitation	48.0 mm (1.9 in)	27 of 100 (Routine)
Eagles Nest	Australia	Record daily precipitation	36.3 mm (1.4 in)	27 of 100 (Routine)
Mount Irving	Australia	Record daily precipitation	30.7 mm (1.2 in)	27 of 100 (Routine)
Lusikisiki (Tnk)	South Africa	Record daily precipitation	41.1 mm (1.6 in)	27 of 100 (Routine)
Gundiah Railway Station	Australia	Record daily precipitation	31.5 mm (1.2 in)	26 of 100 (Routine)
Madowla	Australia	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
Hebgen Dam	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Walebing	Australia	Record high minimum temperature	15.7 C (60.3 F)	25 of 100 (Routine)
Oakey Post Office	Australia	Record daily precipitation	30.7 mm (1.2 in)	25 of 100 (Routine)
Kulikuchi	India	Record daily precipitation	44.5 mm (1.8 in)	25 of 100 (Routine)
Dakor	India	Record daily precipitation	66.8 mm (2.6 in)	25 of 100 (Routine)
Yeola	India	Record daily precipitation	60.2 mm (2.4 in)	25 of 100 (Routine)
Mqanduli (Tnk)	South Africa	Record daily precipitation	35.1 mm (1.4 in)	25 of 100 (Routine)
Beardstown	United States	Record daily precipitation	28.4 mm (1.1 in)	25 of 100 (Routine)
Snowville	United States	Record low maximum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Juandah	Australia	Record daily precipitation	30.0 mm (1.2 in)	24 of 100 (Routine)
Gunbower	Australia	Record daily precipitation	43.4 mm (1.7 in)	24 of 100 (Routine)

Counts by Type and Timescale

403 records

Records set or tied on 17 September 1944 by type: Highest daily maximum 16, Lowest daily maximum 81, Highest daily minimum 47, Lowest daily minimum 33, Heaviest daily rainfall 223, Heaviest daily snowfall 3.

Records on 17 September 1944 by type
Record type	Records
Highest daily maximum	16
Lowest daily maximum	81
Highest daily minimum	47
Lowest daily minimum	33
Heaviest daily rainfall	223
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 17 September 1944 by timescale: all-time 0, monthly 7, daily 396.

How Much Records Were Beaten By

336 broken records

Margins by which the 336 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

17 September 1944

Top 20 records on 17 September 1944 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1944	Mummidivaram, IN	daily rain	129.5 mm (5.1 in)	68.5 mm (2.7 in)	43 years	49 of 100 (Notable)
17 September 1944	Gingindlovu, ZA	daily rain	43.7 mm (1.7 in)	38.4 mm (1.5 in)	27 years	49 of 100 (Notable)
17 September 1944	Amersfoort (Pol), ZA	daily rain	34.0 mm (1.3 in)	32.7 mm (1.3 in)	31 years	49 of 100 (Notable)
17 September 1944	Pittsworth, AU	daily rain	57.4 mm (2.3 in)	41.9 mm (1.6 in)	12 years	48 of 100 (Notable)
17 September 1944	De Emigratie, ZA	daily rain	43.2 mm (1.7 in)	34.6 mm (1.4 in)	27 years	48 of 100 (Notable)
17 September 1944	Bizana (Bos), ZA	daily rain	36.3 mm (1.4 in)	29.7 mm (1.2 in)	30 years	47 of 100 (Notable)
17 September 1944	Tonti (Bos), ZA	daily rain	46.7 mm (1.8 in)	38.3 mm (1.5 in)	12 years	46 of 100 (Notable)
17 September 1944	Dharwar, IN	daily rain	57.4 mm (2.3 in)	36.3 mm (1.4 in)	43 years	45 of 100 (Notable)
17 September 1944	Lake Yellowstone, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	39 years	45 of 100 (Notable)
17 September 1944	Pimpalgaon, IN	daily rain	74.9 mm (2.9 in)	45.7 mm (1.8 in)	30 years	42 of 100 (Notable)
17 September 1944	Quincy, US	daily rain	58.9 mm (2.3 in)	45.7 mm (1.8 in)	33 years	41 of 100 (Notable)
17 September 1944	Quincy Mem Brg, US	daily rain	66.5 mm (2.6 in)	47.2 mm (1.9 in)	33 years	41 of 100 (Notable)
17 September 1944	Elandshoek, Boston, ZA	daily rain	38.4 mm (1.5 in)	26.0 mm (1.0 in)	34 years	40 of 100 (Notable)
17 September 1944	Umtata, ZA	daily rain	41.4 mm (1.6 in)	28.0 mm (1.1 in)	30 years	39 of 100 (Notable)
17 September 1944	Akola, IN	daily rain	69.3 mm (2.7 in)	40.6 mm (1.6 in)	34 years	37 of 100 (Notable)
17 September 1944	Botanic Gardens - Pmb, ZA	daily rain	36.3 mm (1.4 in)	24.1 mm (0.9 in)	27 years	37 of 100 (Notable)
17 September 1944	Balgownie West, AU	daily rain	44.2 mm (1.7 in)	15.0 mm (0.6 in)	44 years	35 of 100 (Notable)
17 September 1944	Columboola, AU	daily rain	38.1 mm (1.5 in)	31.7 mm (1.2 in)	9 years	35 of 100 (Notable)
17 September 1944	Mvenyane, ZA	monthly rain	47.8 mm (1.9 in)	11.5 mm (0.5 in)	18 years	35 of 100 (Notable)
17 September 1944	Blakefield, AU	daily rain	35.8 mm (1.4 in)	26.1 mm (1.0 in)	19 years	34 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 1944

Records set or tied on this calendar date in each year from 1796 to 1944. 1944 had 403 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 1944-09-17: 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 25	306
25 to 50	27
50 to 75	2
75 to 100	0
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1