Weather Records on 8 September 1917

166 weather records were set or tied worldwide on 8 September 1917. Highest significance: Rowlesburg 1, US.

Key Facts for 8 September 1917

On 8 September 1917, 166 weather records were set or tied at long-record stations worldwide.
4 were record highs and 26 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 165 daily.
Rowlesburg 1 set a daily record precipitation of 40.1 mm (1.6 in) on 8 September 1917.
Across 170 earlier years (1802 to 2026) the same calendar date averaged 444 records.

Record Map

166 stations

166 station records on 8 September 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 8 September 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rowlesburg 1	United States	Record daily precipitation	40.1 mm (1.6 in)	44 of 100 (Notable)
Echunga Golf Course	Australia	Record daily precipitation	28.2 mm (1.1 in)	35 of 100 (Notable)
Mount Barker	Australia	Record daily precipitation	27.4 mm (1.1 in)	32 of 100 (Routine)
Nebo	Australia	Record daily precipitation	87.9 mm (3.5 in)	25 of 100 (Routine)
Kanmantoo	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Battunga	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Meningie	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Stansbury	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Cape Jervis Lighthouse	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Nairne	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Truro	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Goolwa Council Depot	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Springsure Comet St	Australia	Record daily precipitation	7.1 mm (0.28 in)	20 of 100 (Routine)
Cambooya Post Office	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Winton Post Office	Australia	Record daily precipitation	7.9 mm (0.31 in)	20 of 100 (Routine)
Saddleworth	Australia	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Toowoomba	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Warwick Post Office	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Angaston	Australia	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)
St Lawrence Post Office	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Allora Post Office	Australia	Record daily precipitation	31.5 mm (1.2 in)	20 of 100 (Routine)
Beechal	Australia	Record daily precipitation	6.1 mm (0.24 in)	20 of 100 (Routine)
Bungaree (Kirks Reservoir)	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Tarkastad (Pol)	South Africa	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Somerville 4 NW	United States	Record daily precipitation	27.9 mm (1.1 in)	20 of 100 (Routine)
World Trade Ctr	United States	Record low maximum temperature	16.7 C (62.1 F)	20 of 100 (Routine)
Edithburgh Post Office	Australia	Record daily precipitation	10.9 mm (0.4 in)	19 of 100 (Routine)
Hahndorf	Australia	Record daily precipitation	28.7 mm (1.1 in)	19 of 100 (Routine)
Hughenden Post Office	Australia	Record daily precipitation	20.1 mm (0.8 in)	19 of 100 (Routine)
Miles Post Office	Australia	Record daily precipitation	24.9 mm (1.0 in)	19 of 100 (Routine)
St Arnaud	Australia	Record daily precipitation	10.2 mm (0.4 in)	19 of 100 (Routine)
Stratford	Canada	Record low minimum temperature	3.9 C (39.0 F)	19 of 100 (Routine)
Minlaton	Australia	Record daily precipitation	8.1 mm (0.32 in)	18 of 100 (Routine)
Kingscote	Australia	Record daily precipitation	8.9 mm (0.35 in)	18 of 100 (Routine)
Tarlee	Australia	Record daily precipitation	6.9 mm (0.27 in)	18 of 100 (Routine)
Port Elliott	Australia	Record daily precipitation	10.2 mm (0.4 in)	18 of 100 (Routine)
Englesberg Village	Australia	Record daily precipitation	13.0 mm (0.5 in)	18 of 100 (Routine)
Roseberry	Australia	Record daily precipitation	21.3 mm (0.8 in)	18 of 100 (Routine)
Horsham Polkemmet Rd	Australia	Record daily precipitation	5.8 mm (0.23 in)	18 of 100 (Routine)
Pirie (Bos)	South Africa	Record daily precipitation	24.1 mm (0.9 in)	18 of 100 (Routine)
Atlantic City Marina	United States	Record low maximum temperature	17.8 C (64.0 F)	18 of 100 (Routine)
Farrell Flat	Australia	Record daily precipitation	14.0 mm (0.6 in)	17 of 100 (Routine)
Clarendon	Australia	Record daily precipitation	15.0 mm (0.6 in)	17 of 100 (Routine)
Woodside	Australia	Record daily precipitation	19.8 mm (0.8 in)	17 of 100 (Routine)
Tambo Post Office	Australia	Record daily precipitation	7.4 mm (0.29 in)	17 of 100 (Routine)
Inglewood Post Office	Australia	Record daily precipitation	13.5 mm (0.5 in)	17 of 100 (Routine)
Leyburn Post Office	Australia	Record daily precipitation	20.3 mm (0.8 in)	17 of 100 (Routine)
Swan Hill Post Office	Australia	Record daily precipitation	9.9 mm (0.39 in)	17 of 100 (Routine)
Inglewood (Post Office)	Australia	Record daily precipitation	5.1 mm (0.20 in)	17 of 100 (Routine)
Hallett (Old Canowie)	Australia	Record daily precipitation	11.2 mm (0.4 in)	16 of 100 (Routine)
Belair (State Flora Nursery)	Australia	Record daily precipitation	13.5 mm (0.5 in)	16 of 100 (Routine)
Woodburn	Australia	Record daily precipitation	9.1 mm (0.36 in)	16 of 100 (Routine)
Murray Bridge Comparison	Australia	Record daily precipitation	9.1 mm (0.36 in)	16 of 100 (Routine)
Beenleigh Post Office	Australia	Record daily precipitation	17.8 mm (0.7 in)	16 of 100 (Routine)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	20.3 mm (0.8 in)	16 of 100 (Routine)
Clunes	Australia	Record daily precipitation	12.7 mm (0.5 in)	16 of 100 (Routine)
Talbot	Australia	Record daily precipitation	13.2 mm (0.5 in)	16 of 100 (Routine)
Cavendish (Post Office)	Australia	Record daily precipitation	9.7 mm (0.38 in)	16 of 100 (Routine)
Southampton	Canada	Record low minimum temperature	3.9 C (39.0 F)	16 of 100 (Routine)

Counts by Type and Timescale

166 records

Records set or tied on 8 September 1917 by type: Highest daily maximum 1, Lowest daily maximum 14, Highest daily minimum 3, Lowest daily minimum 12, Heaviest daily rainfall 136.

Records on 8 September 1917 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	14
Highest daily minimum	3
Lowest daily minimum	12
Heaviest daily rainfall	136
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 8 September 1917 by timescale: all-time 0, monthly 1, daily 165.

How Much Records Were Beaten By

148 broken records

Margins by which the 148 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 32.0. Ties are not counted.

Top 20 by Significance

8 September 1917

Top 20 records on 8 September 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 September 1917	Rowlesburg 1, US	daily rain	40.1 mm (1.6 in)	32.0 mm (1.3 in)	25 years	44 of 100 (Notable)
8 September 1917	Echunga Golf Course, AU	daily rain	28.2 mm (1.1 in)	18.8 mm (0.7 in)	22 years	35 of 100 (Notable)
8 September 1917	Mount Barker, AU	daily rain	27.4 mm (1.1 in)	15.2 mm (0.6 in)	22 years	32 of 100 (Routine)
8 September 1917	Nebo, AU	monthly rain	87.9 mm (3.5 in)	4.8 mm (0.19 in)	26 years	25 of 100 (Routine)
8 September 1917	Kanmantoo, AU	daily rain	24.6 mm (1.0 in)	18.5 mm (0.7 in)	16 years	20 of 100 (Routine)
8 September 1917	Dordrecht - Tnk 14, ZA	daily rain	19.1 mm (0.8 in)	18.3 mm (0.7 in)	34 years	20 of 100 (Routine)
8 September 1917	Battunga, AU	daily rain	22.6 mm (0.9 in)	15.0 mm (0.6 in)	22 years	20 of 100 (Routine)
8 September 1917	Meningie, AU	daily rain	14.5 mm (0.6 in)	8.9 mm (0.35 in)	16 years	20 of 100 (Routine)
8 September 1917	Stansbury, AU	daily rain	18.0 mm (0.7 in)	9.4 mm (0.37 in)	11 years	20 of 100 (Routine)
8 September 1917	Cape Jervis Lighthouse, AU	daily rain	19.6 mm (0.8 in)	8.4 mm (0.33 in)	11 years	20 of 100 (Routine)
8 September 1917	Nairne, AU	daily rain	21.8 mm (0.9 in)	10.9 mm (0.4 in)	22 years	20 of 100 (Routine)
8 September 1917	Truro, AU	daily rain	14.7 mm (0.6 in)	7.3 mm (0.29 in)	30 years	20 of 100 (Routine)
8 September 1917	Goolwa Council Depot, AU	daily rain	12.7 mm (0.5 in)	6.9 mm (0.27 in)	22 years	20 of 100 (Routine)
8 September 1917	Springsure Comet St, AU	daily rain	7.1 mm (0.28 in)	7.1 mm (0.28 in)	39 years	20 of 100 (Routine)
8 September 1917	Cambooya Post Office, AU	daily rain	24.1 mm (0.9 in)	17.5 mm (0.7 in)	7 years	20 of 100 (Routine)
8 September 1917	Winton Post Office, AU	daily rain	7.9 mm (0.31 in)	7.9 mm (0.31 in)	31 years	20 of 100 (Routine)
8 September 1917	Saddleworth, AU	daily rain	9.7 mm (0.38 in)	5.1 mm (0.20 in)	29 years	20 of 100 (Routine)
8 September 1917	Toowoomba, AU	daily rain	22.9 mm (0.9 in)	14.0 mm (0.6 in)	7 years	20 of 100 (Routine)
8 September 1917	Warwick Post Office, AU	daily rain	19.1 mm (0.8 in)	13.5 mm (0.5 in)	7 years	20 of 100 (Routine)
8 September 1917	Angaston, AU	daily rain	12.4 mm (0.5 in)	5.3 mm (0.21 in)	30 years	20 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

1802 to 1917

Records set or tied on this calendar date in each year from 1802 to 1917. 1917 had 166 records.

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

Records on 09-08 in each year
Year	Records
1802	1
1806	1
1813	1
1814	2
1815	2
1833	1
1837	1
1845	2
1847	2
1848	1
1850	2
1851	1
1854	1
1855	3
1857	1
1860	3
1864	1
1865	2
1866	1
1867	1
1868	1
1869	1
1870	1
1871	2
1872	2
1873	1
1877	1
1878	2
1879	4
1881	3
1883	2
1885	2
1886	1
1887	1
1888	1
1890	2
1891	1
1893	3
1894	9
1895	6
1896	2
1897	3
1898	5
1899	3
1900	4
1901	6
1902	3
1903	13
1904	4
1905	10
1906	14
1907	7
1908	4
1909	7
1910	9
1911	20
1912	62
1913	19
1914	37
1915	32
1916	25
1917	166
1918	31
1919	240
1920	59
1921	299
1922	206
1923	116
1924	138
1925	232
1926	141
1927	177
1928	93
1929	397
1930	156
1931	480
1932	465
1933	728
1934	407
1935	353
1936	535
1937	222
1938	397
1939	547
1940	297
1941	477
1942	375
1943	488
1944	769
1945	423
1946	325
1947	586
1948	340
1949	765
1950	570
1951	389
1952	382
1953	324
1954	309
1955	481
1956	717
1957	427
1958	480
1959	667
1960	678
1961	351
1962	682
1963	378
1964	294
1965	472
1966	351
1967	380
1968	308
1969	556
1970	582
1971	704
1972	523
1973	873
1974	626
1975	564
1976	639
1977	726
1978	1,165
1979	813
1980	739
1981	854
1982	605
1983	1,154
1984	1,123
1985	1,492
1986	1,203
1987	880
1988	856
1989	648
1990	747
1991	806
1992	869
1993	783
1994	704
1995	1,324
1996	609
1997	892
1998	1,331
1999	1,196
2000	981
2001	1,643
2002	1,238
2003	819
2004	1,576
2005	1,015
2006	850
2007	1,112
2008	878
2009	832
2010	1,143
2011	1,554
2012	813
2013	831
2014	515
2015	728
2016	951
2017	978
2018	724
2019	903
2020	1,952
2021	1,080
2022	1,567
2023	1,242
2024	1,336
2025	707
2026	699

Download the Data

Data for records on 1917-09-08: 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	93
5 to 10	33
10 to 15	11
15 to 20	10
20 to 25	0
25 to 30	0
30 to 35	1