Weather Records on 28 September 1918

55 weather records were set or tied worldwide on 28 September 1918. Highest significance: Knysna (Tnk), ZA.

Key Facts for 28 September 1918

On 28 September 1918, 55 weather records were set or tied at long-record stations worldwide.
10 were record highs and 6 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 51 daily.
Knysna (Tnk) set a daily record precipitation of 88.9 mm (3.5 in) on 28 September 1918.
Across 162 earlier years (1794 to 2026) the same calendar date averaged 430 records.

Record Map

55 stations

55 station records on 28 September 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 September 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Knysna (Tnk)	South Africa	Record daily precipitation	88.9 mm (3.5 in)	53 of 100 (Notable)
Bredasdorp	South Africa	Record daily precipitation	36.8 mm (1.4 in)	42 of 100 (Notable)
Caledon (Pol)	South Africa	Record daily precipitation	50.0 mm (2.0 in)	36 of 100 (Notable)
Calitzdorp Pol	South Africa	Record daily precipitation	35.6 mm (1.4 in)	35 of 100 (Notable)
Oxford	United Kingdom	Record low maximum temperature	7.9 C (46.2 F)	35 of 100 (Notable)
Oudtshoorn	South Africa	Record daily precipitation	41.9 mm (1.6 in)	32 of 100 (Routine)
Falun	Sweden	Record daily precipitation	28.7 mm (1.1 in)	32 of 100 (Routine)
Fort Beaufort	South Africa	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Armagh	United Kingdom	Record low maximum temperature	11.3 C (52.3 F)	28 of 100 (Routine)
Cet Central England	United Kingdom	Record low maximum temperature	8.5 C (47.3 F)	27 of 100 (Routine)
Ladismith (Tnk)	South Africa	Record daily precipitation	46.0 mm (1.8 in)	26 of 100 (Routine)
Wrixum/Fohr	Germany	Record daily precipitation	29.7 mm (1.2 in)	23 of 100 (Routine)
Walgett Council Depot	Australia	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)
Harkerville (Bos)	South Africa	Record daily precipitation	36.8 mm (1.4 in)	21 of 100 (Routine)
Robertson	South Africa	Record daily precipitation	50.8 mm (2.0 in)	21 of 100 (Routine)
Alicedale	South Africa	Record daily precipitation	36.8 mm (1.4 in)	21 of 100 (Routine)
Oranjerivier (Sar)	South Africa	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Douglas	South Africa	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Maytown	Australia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Springbok	South Africa	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Aliwal North	South Africa	Record daily precipitation	21.3 mm (0.8 in)	19 of 100 (Routine)
Griquatown (Tnk)	South Africa	Record daily precipitation	5.3 mm (0.21 in)	19 of 100 (Routine)
Inverell Comparison	Australia	Record high maximum temperature	26.7 C (80.1 F)	18 of 100 (Routine)
Stellenbosch (Tnk)	South Africa	Record daily precipitation	18.5 mm (0.7 in)	18 of 100 (Routine)
Ft Bidwell	United States	Record daily precipitation	3.3 mm (0.13 in)	18 of 100 (Routine)
Kieskamahoek (Pol)	South Africa	Record daily precipitation	26.4 mm (1.0 in)	17 of 100 (Routine)
Tarkastad (Pol)	South Africa	Record daily precipitation	23.9 mm (0.9 in)	16 of 100 (Routine)
Landsort	Sweden	Record daily precipitation	12.1 mm (0.5 in)	15 of 100 (Routine)
Gavle	Sweden	Record daily precipitation	27.0 mm (1.1 in)	15 of 100 (Routine)
Zametchino	Russia	Record daily precipitation	8.0 mm (0.31 in)	14 of 100 (Routine)
Colesberg (Tnk)	South Africa	Record daily precipitation	18.5 mm (0.7 in)	14 of 100 (Routine)
Venterstad	South Africa	Record daily precipitation	8.9 mm (0.35 in)	14 of 100 (Routine)
Barkly West (Tnk)	South Africa	Record daily precipitation	7.1 mm (0.28 in)	14 of 100 (Routine)
Bourke Post Office	Australia	Record high maximum temperature	35.0 C (95.0 F)	13 of 100 (Routine)
Cape Norman	Canada	Record daily precipitation	31.5 mm (1.2 in)	13 of 100 (Routine)
Worcester	South Africa	Record daily precipitation	22.6 mm (0.9 in)	12 of 100 (Routine)
Middleburg	South Africa	Record daily precipitation	19.1 mm (0.8 in)	12 of 100 (Routine)
Newlands	South Africa	Record daily precipitation	8.1 mm (0.32 in)	12 of 100 (Routine)
New Westminster	Canada	Record high maximum temperature	26.7 C (80.1 F)	11 of 100 (Routine)
Wrixum/Fohr	Germany	Record low maximum temperature	11.4 C (52.5 F)	11 of 100 (Routine)
Fir Glen	South Africa	Record daily precipitation	45.5 mm (1.8 in)	11 of 100 (Routine)
Wellwood	South Africa	Record daily precipitation	26.2 mm (1.0 in)	11 of 100 (Routine)
Barkly East	South Africa	Record daily precipitation	20.3 mm (0.8 in)	11 of 100 (Routine)
Gunnedah Pool	Australia	Record high maximum temperature	31.1 C (88.0 F)	10 of 100 (Routine)
Britstown (Pol)	South Africa	Record daily precipitation	8.9 mm (0.35 in)	9 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record high minimum temperature	12.0 C (53.6 F)	8 of 100 (Routine)
Ljungby	Sweden	Record daily precipitation	17.5 mm (0.7 in)	8 of 100 (Routine)
Bathurst Gaol	Australia	Record high maximum temperature	25.6 C (78.1 F)	7 of 100 (Routine)
San Diego Wbo	United States	Record high maximum temperature	34.4 C (93.9 F)	7 of 100 (Routine)
San Diego Wbo	United States	Record high minimum temperature	20.6 C (69.1 F)	7 of 100 (Routine)
Waverley	South Africa	Record daily precipitation	20.1 mm (0.8 in)	5 of 100 (Routine)
Walsingham 1	South Africa	Record daily precipitation	39.4 mm (1.6 in)	4 of 100 (Routine)
Chattanooga Wb City	United States	Record low maximum temperature	16.1 C (61.0 F)	4 of 100 (Routine)
Washington	United States	Record low minimum temperature	5.6 C (42.1 F)	3 of 100 (Routine)
Portland Rfc City	United States	Record high minimum temperature	15.6 C (60.1 F)	2 of 100 (Routine)

Counts by Type and Timescale

55 records

Records set or tied on 28 September 1918 by type: Highest daily maximum 7, Lowest daily maximum 5, Highest daily minimum 3, Lowest daily minimum 1, Heaviest daily rainfall 39.

Records on 28 September 1918 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	5
Highest daily minimum	3
Lowest daily minimum	1
Heaviest daily rainfall	39
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 28 September 1918 by timescale: all-time 0, monthly 4, daily 51.

How Much Records Were Beaten By

52 broken records

Margins by which the 52 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 62.5. Ties are not counted.

Top 20 by Significance

28 September 1918

Top 20 records on 28 September 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 September 1918	Knysna (Tnk), ZA	daily rain	88.9 mm (3.5 in)	62.5 mm (2.5 in)	33 years	53 of 100 (Notable)
28 September 1918	Bredasdorp, ZA	daily rain	36.8 mm (1.4 in)	20.8 mm (0.8 in)	33 years	42 of 100 (Notable)
28 September 1918	Caledon (Pol), ZA	daily rain	50.0 mm (2.0 in)	23.1 mm (0.9 in)	4 years	36 of 100 (Notable)
28 September 1918	Calitzdorp Pol, ZA	daily rain	35.6 mm (1.4 in)	30.8 mm (1.2 in)	5 years	35 of 100 (Notable)
28 September 1918	Oxford, GB	monthly low max	7.9 C (46.2 F)	2.0 C (3.6 F)	33 years	35 of 100 (Notable)
28 September 1918	Oudtshoorn, ZA	daily rain	41.9 mm (1.6 in)	28.9 mm (1.1 in)	5 years	32 of 100 (Routine)
28 September 1918	Falun, SE	daily rain	28.7 mm (1.1 in)	12.0 mm (0.5 in)	21 years	32 of 100 (Routine)
28 September 1918	Fort Beaufort, ZA	daily rain	35.6 mm (1.4 in)	19.9 mm (0.8 in)	24 years	29 of 100 (Routine)
28 September 1918	Armagh, GB	daily low max	11.3 C (52.3 F)	0.2 C (0.4 F)	71 years	28 of 100 (Routine)
28 September 1918	Cet Central England, GB	monthly low max	8.5 C (47.3 F)	1.9 C (3.4 F)	29 years	27 of 100 (Routine)
28 September 1918	Ladismith (Tnk), ZA	daily rain	46.0 mm (1.8 in)	18.1 mm (0.7 in)	5 years	26 of 100 (Routine)
28 September 1918	Wrixum/Fohr, DE	daily rain	29.7 mm (1.2 in)	11.0 mm (0.4 in)	7 years	23 of 100 (Routine)
28 September 1918	Walgett Council Depot, AU	daily high max	34.4 C (93.9 F)	3.8 C (6.8 F)	33 years	22 of 100 (Routine)
28 September 1918	Harkerville (Bos), ZA	daily rain	36.8 mm (1.4 in)	14.4 mm (0.6 in)	24 years	21 of 100 (Routine)
28 September 1918	Robertson, ZA	monthly rain	50.8 mm (2.0 in)	4.3 mm (0.17 in)	7 years	21 of 100 (Routine)
28 September 1918	Alicedale, ZA	daily rain	36.8 mm (1.4 in)	11.7 mm (0.5 in)	24 years	21 of 100 (Routine)
28 September 1918	Oranjerivier (Sar), ZA	daily rain	14.0 mm (0.6 in)	14.0 mm (0.6 in)	33 years	20 of 100 (Routine)
28 September 1918	Douglas, ZA	daily rain	13.2 mm (0.5 in)	11.9 mm (0.5 in)	24 years	20 of 100 (Routine)
28 September 1918	Maytown, AU	daily rain	10.7 mm (0.4 in)	10.7 mm (0.4 in)	30 years	20 of 100 (Routine)
28 September 1918	Springbok, ZA	daily rain	20.8 mm (0.8 in)	11.7 mm (0.5 in)	12 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

1794 to 1918

Records set or tied on this calendar date in each year from 1794 to 1918. 1918 had 55 records.

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

Records on 09-28 in each year
Year	Records
1794	1
1826	1
1832	1
1849	2
1851	1
1854	2
1855	2
1859	1
1862	1
1864	1
1866	1
1867	3
1868	1
1869	2
1873	3
1874	3
1877	3
1878	1
1879	1
1880	2
1881	3
1883	2
1884	1
1885	4
1887	1
1888	1
1890	4
1891	2
1892	3
1893	1
1894	6
1895	5
1896	3
1897	5
1898	4
1899	6
1900	9
1901	2
1902	5
1903	19
1904	17
1905	17
1906	37
1907	27
1908	23
1909	16
1910	39
1911	62
1912	32
1913	37
1914	28
1915	57
1916	61
1917	35
1918	55
1919	38
1920	23
1921	39
1922	34
1923	150
1924	139
1925	191
1926	305
1927	194
1928	205
1929	432
1930	116
1931	233
1932	195
1933	459
1934	237
1935	282
1936	502
1937	313
1938	311
1939	552
1940	419
1941	479
1942	1,187
1943	440
1944	367
1945	1,034
1946	347
1947	647
1948	617
1949	359
1950	233
1951	441
1952	366
1953	842
1954	512
1955	409
1956	590
1957	695
1958	509
1959	874
1960	226
1961	385
1962	705
1963	666
1964	723
1965	582
1966	477
1967	978
1968	262
1969	244
1970	932
1971	954
1972	671
1973	886
1974	583
1975	502
1976	900
1977	784
1978	513
1979	915
1980	750
1981	752
1982	1,001
1983	941
1984	1,326
1985	1,189
1986	1,264
1987	825
1988	623
1989	847
1990	414
1991	821
1992	643
1993	627
1994	836
1995	794
1996	1,069
1997	681
1998	1,541
1999	1,533
2000	652
2001	791
2002	743
2003	929
2004	852
2005	1,088
2006	704
2007	837
2008	536
2009	792
2010	1,139
2011	1,025
2012	624
2013	790
2014	878
2015	673
2016	520
2017	755
2018	527
2019	1,388
2020	531
2021	740
2022	727
2023	772
2024	1,364
2025	464
2026	531

Download the Data

Data for records on 1918-09-28: 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 10	37
10 to 20	10
20 to 30	3
30 to 40	1
40 to 50	0
50 to 60	0
60 to 70	1