Weather Records on 11 August 1917

217 weather records were set or tied worldwide on 11 August 1917. Highest significance: Gredgwin (Barraport North), AU.

Key Facts for 11 August 1917

On 11 August 1917, 217 weather records were set or tied at long-record stations worldwide.
5 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 204 daily.
Gredgwin (Barraport North) set a monthly record daily precipitation of 35.8 mm (1.4 in) on 11 August 1917.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

217 stations

217 station records on 11 August 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gredgwin (Barraport North)	Australia	Record daily precipitation	35.8 mm (1.4 in)	57 of 100 (Notable)
Boort	Australia	Record daily precipitation	33.0 mm (1.3 in)	53 of 100 (Notable)
Kerang (Tragowell)	Australia	Record daily precipitation	29.5 mm (1.2 in)	52 of 100 (Notable)
Narraport	Australia	Record daily precipitation	25.7 mm (1.0 in)	51 of 100 (Notable)
Tyrrell Downs	Australia	Record daily precipitation	27.4 mm (1.1 in)	51 of 100 (Notable)
Bridgewater (Memsie)	Australia	Record daily precipitation	34.0 mm (1.3 in)	51 of 100 (Notable)
Rushworth	Australia	Record daily precipitation	35.6 mm (1.4 in)	51 of 100 (Notable)
Rokewood (the Meadows)	Australia	Record daily precipitation	25.4 mm (1.0 in)	51 of 100 (Notable)
Pooncarie (Moorara)	Australia	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Pooncarie (Tarcoola)	Australia	Record daily precipitation	34.3 mm (1.4 in)	50 of 100 (Notable)
Echuca Aerodrome	Australia	Record daily precipitation	29.5 mm (1.2 in)	50 of 100 (Notable)
Elmore	Australia	Record daily precipitation	36.1 mm (1.4 in)	49 of 100 (Notable)
Swan Hill (Murray Downs)	Australia	Record daily precipitation	28.7 mm (1.1 in)	47 of 100 (Notable)
Towaninnie	Australia	Record daily precipitation	30.2 mm (1.2 in)	46 of 100 (Notable)
Fryerstown	Australia	Record daily precipitation	31.8 mm (1.3 in)	46 of 100 (Notable)
Pooncarie Mail Agency	Australia	Record daily precipitation	34.3 mm (1.4 in)	45 of 100 (Notable)
Dumosa	Australia	Record daily precipitation	27.9 mm (1.1 in)	45 of 100 (Notable)
Benjeroop (Davey)	Australia	Record daily precipitation	26.2 mm (1.0 in)	45 of 100 (Notable)
Calivil	Australia	Record daily precipitation	33.8 mm (1.3 in)	45 of 100 (Notable)
St Arnaud (Coonooer Bridge)	Australia	Record daily precipitation	26.9 mm (1.1 in)	45 of 100 (Notable)
Yarrawalla South	Australia	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Mitiamo 1	Australia	Record daily precipitation	33.8 mm (1.3 in)	45 of 100 (Notable)
Bendigo Prison	Australia	Record daily precipitation	38.4 mm (1.5 in)	45 of 100 (Notable)
Nagambie Cba	Australia	Record daily precipitation	39.6 mm (1.6 in)	45 of 100 (Notable)
Inglewood (Post Office)	Australia	Record daily precipitation	30.5 mm (1.2 in)	44 of 100 (Notable)
Pooncarie (Mulurulu Station)	Australia	Record daily precipitation	32.8 mm (1.3 in)	43 of 100 (Notable)
Euston Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	43 of 100 (Notable)
Wooroonook	Australia	Record daily precipitation	26.2 mm (1.0 in)	43 of 100 (Notable)
Dunolly	Australia	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
Wentworth (Avoca)	Australia	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Netley	Australia	Record daily precipitation	27.4 mm (1.1 in)	42 of 100 (Notable)
Walbundrie (Crediton Street)	Australia	Record daily precipitation	27.4 mm (1.1 in)	42 of 100 (Notable)
Numurkah Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Wychitella South	Australia	Record daily precipitation	39.4 mm (1.6 in)	42 of 100 (Notable)
Katandra North	Australia	Record daily precipitation	37.6 mm (1.5 in)	42 of 100 (Notable)
Yea	Australia	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Donald Post Office	Australia	Record daily precipitation	26.2 mm (1.0 in)	41 of 100 (Notable)
Canary Island	Australia	Record daily precipitation	40.1 mm (1.6 in)	40 of 100 (Notable)
Whroo	Australia	Record daily precipitation	52.1 mm (2.1 in)	40 of 100 (Notable)
Mount Bute	Australia	Record daily precipitation	26.2 mm (1.0 in)	40 of 100 (Notable)
Tolarno	Australia	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Wedderburn (Post Office)	Australia	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Lake Marmal	Australia	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Daylesford	Australia	Record daily precipitation	36.8 mm (1.4 in)	37 of 100 (Notable)
Holbrook (Rsl)	Australia	Record daily precipitation	26.2 mm (1.0 in)	36 of 100 (Notable)
Paika	Australia	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Kyabram Post Office	Australia	Record daily precipitation	25.7 mm (1.0 in)	34 of 100 (Routine)
Maryborough	Australia	Record daily precipitation	36.3 mm (1.4 in)	34 of 100 (Routine)
Heathcote	Australia	Record daily precipitation	38.4 mm (1.5 in)	33 of 100 (Routine)
Bindara (Netley)	Australia	Record daily precipitation	27.2 mm (1.1 in)	32 of 100 (Routine)
Charlton Post Office	Australia	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
Alexandra (Post Office)	Australia	Record daily precipitation	31.2 mm (1.2 in)	32 of 100 (Routine)
Swan Hill Post Office	Australia	Record daily precipitation	29.5 mm (1.2 in)	31 of 100 (Routine)
Murchison	Australia	Record daily precipitation	29.7 mm (1.2 in)	31 of 100 (Routine)
Smeaton Weir	Australia	Record daily precipitation	32.5 mm (1.3 in)	31 of 100 (Routine)
Kerang (Meran Downs)	Australia	Record daily precipitation	40.4 mm (1.6 in)	30 of 100 (Routine)
Avoca (Post Office)	Australia	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Seymour Shire Depot	Australia	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Tapio	Australia	Record daily precipitation	25.9 mm (1.0 in)	29 of 100 (Routine)
Hatfield (Benilkie)	Australia	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)

Counts by Type and Timescale

217 records

Records set or tied on 11 August 1917 by type: Highest daily maximum 2, Lowest daily maximum 2, Highest daily minimum 3, Lowest daily minimum 2, Heaviest daily rainfall 208.

Records on 11 August 1917 by type
Record type	Records
Highest daily maximum	2
Lowest daily maximum	2
Highest daily minimum	3
Lowest daily minimum	2
Heaviest daily rainfall	208
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1917 by timescale: all-time 0, monthly 13, daily 204.

How Much Records Were Beaten By

210 broken records

Margins by which the 210 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 31.8. Ties are not counted.

Top 20 by Significance

11 August 1917

Top 20 records on 11 August 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1917	Gredgwin (Barraport North), AU	monthly rain	35.8 mm (1.4 in)	16.2 mm (0.6 in)	14 years	57 of 100 (Notable)
11 August 1917	Boort, AU	daily rain	33.0 mm (1.3 in)	24.1 mm (0.9 in)	33 years	53 of 100 (Notable)
11 August 1917	Kerang (Tragowell), AU	daily rain	29.5 mm (1.2 in)	18.3 mm (0.7 in)	33 years	52 of 100 (Notable)
11 August 1917	Narraport, AU	daily rain	25.7 mm (1.0 in)	23.2 mm (0.9 in)	28 years	51 of 100 (Notable)
11 August 1917	Tyrrell Downs, AU	daily rain	27.4 mm (1.1 in)	20.5 mm (0.8 in)	26 years	51 of 100 (Notable)
11 August 1917	Bridgewater (Memsie), AU	daily rain	34.0 mm (1.3 in)	25.6 mm (1.0 in)	32 years	51 of 100 (Notable)
11 August 1917	Rushworth, AU	daily rain	35.6 mm (1.4 in)	25.9 mm (1.0 in)	26 years	51 of 100 (Notable)
11 August 1917	Rokewood (the Meadows), AU	daily rain	25.4 mm (1.0 in)	14.5 mm (0.6 in)	36 years	51 of 100 (Notable)
11 August 1917	Pooncarie (Moorara), AU	daily rain	35.6 mm (1.4 in)	31.8 mm (1.3 in)	25 years	50 of 100 (Notable)
11 August 1917	Pooncarie (Tarcoola), AU	daily rain	34.3 mm (1.4 in)	21.6 mm (0.9 in)	33 years	50 of 100 (Notable)
11 August 1917	Echuca Aerodrome, AU	daily rain	29.5 mm (1.2 in)	21.1 mm (0.8 in)	33 years	50 of 100 (Notable)
11 August 1917	Elmore, AU	daily rain	36.1 mm (1.4 in)	19.8 mm (0.8 in)	33 years	49 of 100 (Notable)
11 August 1917	Swan Hill (Murray Downs), AU	daily rain	28.7 mm (1.1 in)	22.9 mm (0.9 in)	8 years	47 of 100 (Notable)
11 August 1917	Towaninnie, AU	daily rain	30.2 mm (1.2 in)	25.4 mm (1.0 in)	10 years	46 of 100 (Notable)
11 August 1917	Fryerstown, AU	daily rain	31.8 mm (1.3 in)	24.7 mm (1.0 in)	10 years	46 of 100 (Notable)
11 August 1917	Pooncarie Mail Agency, AU	daily rain	34.3 mm (1.4 in)	22.9 mm (0.9 in)	33 years	45 of 100 (Notable)
11 August 1917	Dumosa, AU	daily rain	27.9 mm (1.1 in)	23.8 mm (0.9 in)	8 years	45 of 100 (Notable)
11 August 1917	Benjeroop (Davey), AU	daily rain	26.2 mm (1.0 in)	20.6 mm (0.8 in)	8 years	45 of 100 (Notable)
11 August 1917	Calivil, AU	daily rain	33.8 mm (1.3 in)	25.7 mm (1.0 in)	8 years	45 of 100 (Notable)
11 August 1917	St Arnaud (Coonooer Bridge), AU	daily rain	26.9 mm (1.1 in)	22.1 mm (0.9 in)	8 years	45 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 217 records.

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

Records on 08-11 in each year
Year	Records
1793	1
1796	1
1811	1
1815	2
1838	1
1839	1
1841	1
1851	1
1855	1
1858	1
1861	2
1862	1
1863	1
1864	6
1865	1
1866	6
1869	4
1871	1
1875	1
1879	2
1881	1
1883	1
1885	1
1888	1
1889	4
1890	4
1891	1
1892	4
1893	1
1894	1
1895	2
1896	5
1897	3
1898	2
1899	3
1900	4
1901	4
1902	13
1903	12
1904	19
1905	9
1906	6
1907	8
1908	10
1909	41
1910	9
1911	24
1912	46
1913	43
1914	26
1915	27
1916	64
1917	217
1918	29
1919	18
1920	54
1921	201
1922	98
1923	80
1924	149
1925	219
1926	140
1927	190
1928	174
1929	354
1930	471
1931	453
1932	281
1933	416
1934	620
1935	499
1936	541
1937	356
1938	315
1939	389
1940	359
1941	807
1942	390
1943	345
1944	936
1945	401
1946	419
1947	709
1948	306
1949	471
1950	320
1951	296
1952	417
1953	283
1954	536
1955	319
1956	457
1957	305
1958	494
1959	337
1960	461
1961	429
1962	662
1963	493
1964	677
1965	793
1966	1,037
1967	1,071
1968	619
1969	533
1970	526
1971	711
1972	823
1973	451
1974	596
1975	753
1976	529
1977	845
1978	433
1979	797
1980	929
1981	645
1982	1,232
1983	1,095
1984	822
1985	804
1986	563
1987	885
1988	1,119
1989	983
1990	760
1991	822
1992	928
1993	840
1994	1,173
1995	1,324
1996	1,147
1997	1,512
1998	1,232
1999	1,152
2000	924
2001	811
2002	1,152
2003	1,601
2004	1,478
2005	1,031
2006	896
2007	1,428
2008	945
2009	836
2010	2,289
2011	1,106
2012	953
2013	470
2014	556
2015	696
2016	1,340
2017	619
2018	861
2019	758
2020	688
2021	834
2022	661
2023	757
2024	643
2025	722
2026	765

Download the Data

Data for records on 1917-08-11: 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	78
5 to 10	42
10 to 15	33
15 to 20	28
20 to 25	19
25 to 30	8
30 to 35	2