Weather Records on 16 September 1917

180 weather records were set or tied worldwide on 16 September 1917. Highest significance: Orroroo, AU.

Key Facts for 16 September 1917

On 16 September 1917, 180 weather records were set or tied at long-record stations worldwide.
5 were record highs and 8 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 180 daily.
Orroroo set a daily record precipitation of 32.5 mm (1.3 in) on 16 September 1917.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 415 records.

Record Map

180 stations

180 station records on 16 September 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 16 September 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Orroroo	Australia	Record daily precipitation	32.5 mm (1.3 in)	51 of 100 (Notable)
Carrieton (Pamatta)	Australia	Record daily precipitation	38.1 mm (1.5 in)	49 of 100 (Notable)
Cobar (Lerida)	Australia	Record daily precipitation	38.4 mm (1.5 in)	48 of 100 (Notable)
Temora Ambulance Station	Australia	Record daily precipitation	39.1 mm (1.5 in)	48 of 100 (Notable)
Urana (Butherwah)	Australia	Record daily precipitation	36.1 mm (1.4 in)	48 of 100 (Notable)
Clare Post Office	Australia	Record daily precipitation	36.3 mm (1.4 in)	46 of 100 (Notable)
Carrieton	Australia	Record daily precipitation	30.7 mm (1.2 in)	45 of 100 (Notable)
Wilmington	Australia	Record daily precipitation	47.0 mm (1.9 in)	45 of 100 (Notable)
Carabost	Australia	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Peterborough	Australia	Record daily precipitation	30.7 mm (1.2 in)	44 of 100 (Notable)
Wirrabara	Australia	Record daily precipitation	38.1 mm (1.5 in)	43 of 100 (Notable)
Johnburgh Post Office	Australia	Record daily precipitation	31.8 mm (1.3 in)	42 of 100 (Notable)
Appila	Australia	Record daily precipitation	34.8 mm (1.4 in)	41 of 100 (Notable)
Hammond	Australia	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Melrose	Australia	Record daily precipitation	43.2 mm (1.7 in)	41 of 100 (Notable)
Yankalilla (Woodvale)	Australia	Record daily precipitation	34.0 mm (1.3 in)	41 of 100 (Notable)
Stansbury	Australia	Record daily precipitation	26.7 mm (1.1 in)	40 of 100 (Notable)
Mount Remarkable	Australia	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Farrell Flat	Australia	Record daily precipitation	35.8 mm (1.4 in)	39 of 100 (Notable)
Mannanarie Post Office	Australia	Record daily precipitation	36.3 mm (1.4 in)	38 of 100 (Notable)
Brinkworth (Bungaree)	Australia	Record daily precipitation	35.1 mm (1.4 in)	37 of 100 (Notable)
Hawker (Warcowie)	Australia	Record daily precipitation	26.9 mm (1.1 in)	36 of 100 (Notable)
Yacka	Australia	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Booleroo Centre	Australia	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Narridy Post Office	Australia	Record daily precipitation	28.2 mm (1.1 in)	33 of 100 (Routine)
Terowie	Australia	Record daily precipitation	28.4 mm (1.1 in)	33 of 100 (Routine)
Whyte Yarcowie	Australia	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Groongal (Groongal Station)	Australia	Record daily precipitation	33.8 mm (1.3 in)	33 of 100 (Routine)
Burra (Kooringa)	Australia	Record daily precipitation	26.7 mm (1.1 in)	32 of 100 (Routine)
Hawker	Australia	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Warren (Eenaweena)	Australia	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Koolunga	Australia	Record daily precipitation	28.2 mm (1.1 in)	30 of 100 (Routine)
Redhill	Australia	Record daily precipitation	28.2 mm (1.1 in)	30 of 100 (Routine)
Brinkworth (Anama Park)	Australia	Record daily precipitation	29.7 mm (1.2 in)	28 of 100 (Routine)
Laura	Australia	Record daily precipitation	31.0 mm (1.2 in)	28 of 100 (Routine)
Adelaide (Morphett Vale)	Australia	Record daily precipitation	25.7 mm (1.0 in)	28 of 100 (Routine)
Lithgow (Cooerwull)	Australia	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Koomooloo	Australia	Record daily precipitation	26.2 mm (1.0 in)	27 of 100 (Routine)
Nelgowrie	Australia	Record daily precipitation	34.0 mm (1.3 in)	27 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record low maximum temperature	21.0 C (69.8 F)	26 of 100 (Routine)
Crystal Brook	Australia	Record daily precipitation	27.4 mm (1.1 in)	26 of 100 (Routine)
Willunga	Australia	Record daily precipitation	26.2 mm (1.0 in)	25 of 100 (Routine)
Georgetown	Australia	Record daily precipitation	29.2 mm (1.1 in)	23 of 100 (Routine)
Watervale	Australia	Record daily precipitation	29.0 mm (1.1 in)	23 of 100 (Routine)
Chattanooga Wb City	United States	Record daily precipitation	40.4 mm (1.6 in)	23 of 100 (Routine)
Port Augusta West	Australia	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Jamestown	Australia	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Wandearah North	Australia	Record daily precipitation	27.7 mm (1.1 in)	22 of 100 (Routine)
Hawker (Holowilena)	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Port Augusta Post Office	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Edithburgh Post Office	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Goorimpa	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Hawker (Wilson)	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Quorn (Round Hill)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Wentworth (Avoca)	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Overland Corner	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Menindee (Weinteriga)	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
M.R.A.	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Trangie (Old Bundemar)	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Galway	Ireland	Record daily precipitation	18.6 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

180 records

Records set or tied on 16 September 1917 by type: Highest daily maximum 1, Lowest daily maximum 6, Highest daily minimum 4, Lowest daily minimum 2, Heaviest daily rainfall 167.

Records on 16 September 1917 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	6
Highest daily minimum	4
Lowest daily minimum	2
Heaviest daily rainfall	167
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 16 September 1917 by timescale: all-time 0, monthly 0, daily 180.

How Much Records Were Beaten By

168 broken records

Margins by which the 168 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.8. Ties are not counted.

Top 20 by Significance

16 September 1917

Top 20 records on 16 September 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 September 1917	Orroroo, AU	daily rain	32.5 mm (1.3 in)	27.4 mm (1.1 in)	20 years	51 of 100 (Notable)
16 September 1917	Carrieton (Pamatta), AU	daily rain	38.1 mm (1.5 in)	31.2 mm (1.2 in)	21 years	49 of 100 (Notable)
16 September 1917	Cobar (Lerida), AU	daily rain	38.4 mm (1.5 in)	30.3 mm (1.2 in)	20 years	48 of 100 (Notable)
16 September 1917	Temora Ambulance Station, AU	daily rain	39.1 mm (1.5 in)	32.7 mm (1.3 in)	23 years	48 of 100 (Notable)
16 September 1917	Urana (Butherwah), AU	daily rain	36.1 mm (1.4 in)	28.0 mm (1.1 in)	37 years	48 of 100 (Notable)
16 September 1917	Clare Post Office, AU	daily rain	36.3 mm (1.4 in)	20.3 mm (0.8 in)	50 years	46 of 100 (Notable)
16 September 1917	Carrieton, AU	daily rain	30.7 mm (1.2 in)	23.1 mm (0.9 in)	20 years	45 of 100 (Notable)
16 September 1917	Wilmington, AU	daily rain	47.0 mm (1.9 in)	36.1 mm (1.4 in)	7 years	45 of 100 (Notable)
16 September 1917	Carabost, AU	daily rain	50.8 mm (2.0 in)	36.8 mm (1.4 in)	7 years	45 of 100 (Notable)
16 September 1917	Peterborough, AU	daily rain	30.7 mm (1.2 in)	23.6 mm (0.9 in)	7 years	44 of 100 (Notable)
16 September 1917	Wirrabara, AU	daily rain	38.1 mm (1.5 in)	27.9 mm (1.1 in)	7 years	43 of 100 (Notable)
16 September 1917	Johnburgh Post Office, AU	daily rain	31.8 mm (1.3 in)	22.9 mm (0.9 in)	20 years	42 of 100 (Notable)
16 September 1917	Appila, AU	daily rain	34.8 mm (1.4 in)	22.9 mm (0.9 in)	7 years	41 of 100 (Notable)
16 September 1917	Hammond, AU	daily rain	32.8 mm (1.3 in)	25.2 mm (1.0 in)	7 years	41 of 100 (Notable)
16 September 1917	Melrose, AU	daily rain	43.2 mm (1.7 in)	33.3 mm (1.3 in)	7 years	41 of 100 (Notable)
16 September 1917	Yankalilla (Woodvale), AU	daily rain	34.0 mm (1.3 in)	19.3 mm (0.8 in)	17 years	41 of 100 (Notable)
16 September 1917	Stansbury, AU	daily rain	26.7 mm (1.1 in)	15.8 mm (0.6 in)	17 years	40 of 100 (Notable)
16 September 1917	Mount Remarkable, AU	daily rain	33.0 mm (1.3 in)	26.4 mm (1.0 in)	7 years	39 of 100 (Notable)
16 September 1917	Farrell Flat, AU	daily rain	35.8 mm (1.4 in)	23.6 mm (0.9 in)	7 years	39 of 100 (Notable)
16 September 1917	Mannanarie Post Office, AU	daily rain	36.3 mm (1.4 in)	20.8 mm (0.8 in)	27 years	38 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

1793 to 1917

Records set or tied on this calendar date in each year from 1793 to 1917. 1917 had 180 records.

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

Records on 09-16 in each year
Year	Records
1793	1
1796	1
1807	1
1809	1
1823	2
1828	1
1829	1
1833	1
1837	1
1845	1
1847	1
1848	2
1850	1
1852	1
1854	2
1857	1
1861	1
1865	1
1866	1
1867	1
1869	1
1873	1
1874	3
1875	2
1877	4
1879	1
1882	1
1884	2
1885	5
1886	1
1887	2
1888	1
1889	9
1890	1
1892	2
1893	2
1894	1
1895	2
1896	3
1897	2
1898	6
1899	4
1900	5
1901	7
1902	3
1903	18
1904	5
1905	9
1906	12
1907	14
1908	15
1909	18
1910	26
1911	18
1912	58
1913	43
1914	35
1915	50
1916	60
1917	180
1918	125
1919	26
1920	164
1921	62
1922	147
1923	151
1924	77
1925	212
1926	116
1927	382
1928	62
1929	121
1930	235
1931	568
1932	533
1933	321
1934	519
1935	303
1936	442
1937	536
1938	296
1939	666
1940	188
1941	319
1942	504
1943	270
1944	284
1945	390
1946	610
1947	763
1948	541
1949	486
1950	506
1951	290
1952	378
1953	317
1954	554
1955	490
1956	605
1957	500
1958	538
1959	983
1960	235
1961	833
1962	479
1963	491
1964	859
1965	1,159
1966	838
1967	427
1968	496
1969	360
1970	627
1971	617
1972	451
1973	608
1974	385
1975	836
1976	878
1977	577
1978	421
1979	1,025
1980	568
1981	765
1982	863
1983	814
1984	898
1985	539
1986	862
1987	783
1988	786
1989	854
1990	593
1991	1,367
1992	1,073
1993	1,542
1994	1,008
1995	976
1996	1,403
1997	1,028
1998	1,466
1999	879
2000	1,315
2001	819
2002	1,117
2003	627
2004	746
2005	1,112
2006	1,274
2007	895
2008	1,000
2009	754
2010	880
2011	1,265
2012	572
2013	673
2014	490
2015	926
2016	767
2017	583
2018	921
2019	742
2020	674
2021	454
2022	521
2023	568
2024	885
2025	578
2026	920

Download the Data

Data for records on 1917-09-16: 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 5	65
5 to 10	35
10 to 15	24
15 to 20	19
20 to 25	14
25 to 30	5
30 to 35	4
35 to 40	2