Weather Records on 4 August 1918

95 weather records were set or tied worldwide on 4 August 1918. Highest significance: Lakefield, CA.

Key Facts for 4 August 1918

On 4 August 1918, 95 weather records were set or tied at long-record stations worldwide.
18 were record highs and 11 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 2 monthly and 91 daily.
Lakefield set an all-time record high minimum temperature of 29.4 C (84.9 F) on 4 August 1918.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 443 records.

Record Map

95 stations

95 station records on 4 August 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lakefield	Canada	Record high minimum temperature	29.4 C (84.9 F)	39 of 100 (Notable)
Mogil Mogil (Benimora)	Australia	Record daily precipitation	46.5 mm (1.8 in)	35 of 100 (Notable)
Collarenebri (Albert St)	Australia	Record daily precipitation	46.5 mm (1.8 in)	28 of 100 (Routine)
Boolcarrol	Australia	Record daily precipitation	25.9 mm (1.0 in)	27 of 100 (Routine)
Saint John	Canada	Record low minimum temperature	8.3 C (46.9 F)	26 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	28.3 C (82.9 F)	25 of 100 (Routine)
Wanaaring Station	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Mungindi Post Office	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Berlin-Dahlem	Germany	Record daily precipitation	17.7 mm (0.7 in)	20 of 100 (Routine)
St George Post Office	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Hammond	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Walgett (Goangra)	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Walma	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
White Cliffs (Yancannia)	Australia	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Tinapagee	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Angledool (Angledool Station)	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Umzimkulu (Tnk)	South Africa	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Robertsons Mount	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Hermannsburg	Australia	Record daily precipitation	2.3 mm (0.09 in)	19 of 100 (Routine)
Brewarrina Hospital	Australia	Record daily precipitation	11.7 mm (0.5 in)	19 of 100 (Routine)
M.R.A.	Australia	Record daily precipitation	15.5 mm (0.6 in)	19 of 100 (Routine)
Ledknapper Tank	Australia	Record daily precipitation	18.3 mm (0.7 in)	19 of 100 (Routine)
Wee Waa (George St)	Australia	Record daily precipitation	23.4 mm (0.9 in)	19 of 100 (Routine)
Trainors Lagoon	Australia	Record daily precipitation	24.4 mm (1.0 in)	19 of 100 (Routine)
Uccle	Belgium	Record daily precipitation	18.1 mm (0.7 in)	19 of 100 (Routine)
Quebec	Canada	Record low minimum temperature	6.1 C (43.0 F)	19 of 100 (Routine)
Portland	United States	Record low minimum temperature	9.4 C (48.9 F)	19 of 100 (Routine)
Rockhampton Post Office	Australia	Record daily precipitation	1.3 mm (0.05 in)	18 of 100 (Routine)
Cunnamulla Post Office	Australia	Record daily precipitation	3.3 mm (0.13 in)	18 of 100 (Routine)
Tempe Downs	Australia	Record daily precipitation	5.8 mm (0.23 in)	17 of 100 (Routine)
Collerina (Corrella)	Australia	Record daily precipitation	15.2 mm (0.6 in)	17 of 100 (Routine)
Boggabri (Ghoolendaadi)	Australia	Record daily precipitation	11.7 mm (0.5 in)	17 of 100 (Routine)
Bomera	Australia	Record daily precipitation	20.3 mm (0.8 in)	17 of 100 (Routine)
Charlton Post Office	Australia	Record daily precipitation	10.7 mm (0.4 in)	17 of 100 (Routine)
Nanango Wills St	Australia	Record daily precipitation	13.0 mm (0.5 in)	16 of 100 (Routine)
Goonal	Australia	Record daily precipitation	15.7 mm (0.6 in)	16 of 100 (Routine)
Outtrim	Australia	Record daily precipitation	17.8 mm (0.7 in)	16 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record high minimum temperature	17.2 C (63.0 F)	16 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record high maximum temperature	42.8 C (109.0 F)	16 of 100 (Routine)
Quinyambie	Australia	Record daily precipitation	11.7 mm (0.5 in)	15 of 100 (Routine)
Cardwell Marine Pde	Australia	Record daily precipitation	5.1 mm (0.20 in)	15 of 100 (Routine)
Mitchell Post Office	Australia	Record daily precipitation	7.6 mm (0.30 in)	15 of 100 (Routine)
Walgett (Dungalear)	Australia	Record daily precipitation	11.9 mm (0.5 in)	15 of 100 (Routine)
Bingara Post Office	Australia	Record daily precipitation	10.4 mm (0.4 in)	15 of 100 (Routine)
Gundaroo (Bairnsdale)	Australia	Record daily precipitation	10.2 mm (0.4 in)	15 of 100 (Routine)
Lakefield	Canada	Record high maximum temperature	33.9 C (93.0 F)	15 of 100 (Routine)
Pesaro	Italy	Record daily precipitation	14.3 mm (0.6 in)	15 of 100 (Routine)
Port Augusta (Carriewerloo STN	Australia	Record daily precipitation	8.6 mm (0.34 in)	14 of 100 (Routine)
Sedan (Sandleton)	Australia	Record daily precipitation	9.7 mm (0.38 in)	14 of 100 (Routine)
Morven Post Office	Australia	Record daily precipitation	5.1 mm (0.20 in)	14 of 100 (Routine)
Coonamble (Warrana)	Australia	Record daily precipitation	9.1 mm (0.36 in)	14 of 100 (Routine)
Calga	Australia	Record daily precipitation	11.4 mm (0.4 in)	14 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record low minimum temperature	5.1 C (41.2 F)	14 of 100 (Routine)
Karesuando	Sweden	Record high maximum temperature	26.5 C (79.7 F)	14 of 100 (Routine)
Charlton	Australia	Record daily precipitation	11.4 mm (0.4 in)	13 of 100 (Routine)
Bulgandramine	Australia	Record daily precipitation	19.1 mm (0.8 in)	13 of 100 (Routine)
Neba Coonamble	Australia	Record daily precipitation	11.9 mm (0.5 in)	13 of 100 (Routine)
Tambo Post Office	Australia	Record daily precipitation	1.3 mm (0.05 in)	12 of 100 (Routine)
Miles Post Office	Australia	Record daily precipitation	3.3 mm (0.13 in)	12 of 100 (Routine)
Fredericton Unb	Canada	Record low minimum temperature	4.4 C (39.9 F)	12 of 100 (Routine)

Counts by Type and Timescale

95 records

Records set or tied on 4 August 1918 by type: Highest daily maximum 8, Lowest daily maximum 1, Highest daily minimum 10, Lowest daily minimum 10, Heaviest daily rainfall 66.

Records on 4 August 1918 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	1
Highest daily minimum	10
Lowest daily minimum	10
Heaviest daily rainfall	66
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 1918 by timescale: all-time 2, monthly 2, daily 91.

How Much Records Were Beaten By

88 broken records

Margins by which the 88 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 22.8. Ties are not counted.

Top 20 by Significance

4 August 1918

Top 20 records on 4 August 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 1918	Lakefield, CA	all-time high min	29.4 C (84.9 F)	2.7 C (4.9 F)	28 years	39 of 100 (Notable)
4 August 1918	Mogil Mogil (Benimora), AU	daily rain	46.5 mm (1.8 in)	21.1 mm (0.8 in)	31 years	35 of 100 (Notable)
4 August 1918	Collarenebri (Albert St), AU	monthly rain	46.5 mm (1.8 in)	5.6 mm (0.22 in)	30 years	28 of 100 (Routine)
4 August 1918	Boolcarrol, AU	daily rain	25.9 mm (1.0 in)	16.5 mm (0.6 in)	11 years	27 of 100 (Routine)
4 August 1918	Saint John, CA	daily low min	8.3 C (46.9 F)	1.7 C (3.1 F)	43 years	26 of 100 (Routine)
4 August 1918	Concordia ASOS, US	all-time high min	28.3 C (82.9 F)	0.5 C (0.9 F)	5 years	25 of 100 (Routine)
4 August 1918	Wanaaring Station, AU	daily rain	15.5 mm (0.6 in)	15.5 mm (0.6 in)	36 years	20 of 100 (Routine)
4 August 1918	Mungindi Post Office, AU	daily rain	24.1 mm (0.9 in)	22.8 mm (0.9 in)	1 year	20 of 100 (Routine)
4 August 1918	Berlin-Dahlem, DE	daily rain	17.7 mm (0.7 in)	12.7 mm (0.5 in)	12 years	20 of 100 (Routine)
4 August 1918	St George Post Office, AU	daily rain	15.2 mm (0.6 in)	12.7 mm (0.5 in)	27 years	20 of 100 (Routine)
4 August 1918	Hammond, AU	daily rain	13.2 mm (0.5 in)	10.7 mm (0.4 in)	24 years	20 of 100 (Routine)
4 August 1918	Walgett (Goangra), AU	daily rain	16.5 mm (0.6 in)	13.5 mm (0.5 in)	28 years	20 of 100 (Routine)
4 August 1918	Walma, AU	daily rain	14.5 mm (0.6 in)	13.5 mm (0.5 in)	27 years	20 of 100 (Routine)
4 August 1918	White Cliffs (Yancannia), AU	daily rain	6.4 mm (0.25 in)	6.4 mm (0.25 in)	40 years	20 of 100 (Routine)
4 August 1918	Tinapagee, AU	daily rain	13.2 mm (0.5 in)	12.9 mm (0.5 in)	11 years	20 of 100 (Routine)
4 August 1918	Angledool (Angledool Station), AU	daily rain	11.2 mm (0.4 in)	11.2 mm (0.4 in)	31 years	20 of 100 (Routine)
4 August 1918	Umzimkulu (Tnk), ZA	daily rain	11.2 mm (0.4 in)	10.7 mm (0.4 in)	29 years	20 of 100 (Routine)
4 August 1918	Robertsons Mount, AU	daily rain	13.5 mm (0.5 in)	8.4 mm (0.33 in)	27 years	20 of 100 (Routine)
4 August 1918	Hermannsburg, AU	daily rain	2.3 mm (0.09 in)	2.3 mm (0.09 in)	29 years	19 of 100 (Routine)
4 August 1918	Brewarrina Hospital, AU	daily rain	11.7 mm (0.5 in)	5.3 mm (0.21 in)	34 years	19 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

1815 to 1918

Records set or tied on this calendar date in each year from 1815 to 1918. 1918 had 95 records.

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

Records on 08-04 in each year
Year	Records
1815	1
1827	1
1830	2
1833	1
1835	1
1843	1
1846	1
1847	1
1848	1
1857	1
1859	2
1860	2
1863	1
1865	3
1867	1
1868	1
1870	1
1871	1
1872	2
1874	3
1875	1
1878	3
1879	1
1881	2
1882	1
1883	1
1885	3
1886	1
1887	3
1888	4
1889	2
1890	1
1891	2
1893	2
1894	1
1895	3
1896	4
1897	3
1898	1
1899	7
1900	6
1902	4
1903	18
1904	11
1905	19
1906	14
1907	20
1908	31
1909	27
1910	17
1911	23
1912	51
1913	15
1914	33
1915	85
1916	97
1917	29
1918	95
1919	34
1920	79
1921	67
1922	68
1923	146
1924	132
1925	77
1926	334
1927	136
1928	352
1929	224
1930	698
1931	371
1932	258
1933	347
1934	521
1935	367
1936	719
1937	258
1938	489
1939	433
1940	236
1941	383
1942	303
1943	468
1944	662
1945	355
1946	265
1947	845
1948	558
1949	421
1950	666
1951	680
1952	465
1953	1,017
1954	426
1955	624
1956	437
1957	343
1958	533
1959	303
1960	331
1961	745
1962	470
1963	438
1964	885
1965	409
1966	552
1967	428
1968	280
1969	638
1970	415
1971	813
1972	773
1973	748
1974	1,040
1975	772
1976	801
1977	599
1978	1,051
1979	510
1980	998
1981	636
1982	703
1983	920
1984	722
1985	634
1986	905
1987	892
1988	1,204
1989	738
1990	1,013
1991	769
1992	754
1993	1,046
1994	1,265
1995	1,117
1996	1,143
1997	891
1998	1,423
1999	762
2000	840
2001	1,087
2002	928
2003	1,309
2004	968
2005	1,246
2006	1,131
2007	685
2008	883
2009	681
2010	1,665
2011	1,536
2012	738
2013	452
2014	980
2015	505
2016	732
2017	1,134
2018	760
2019	499
2020	778
2021	691
2022	1,185
2023	1,150
2024	809
2025	840
2026	1,044

Download the Data

Data for records on 1918-08-04: 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).

Histogram of margins by which records were beaten on 4 August 1918
Margin	Records
0 to 5	58
5 to 10	12
10 to 15	13
15 to 20	3
20 to 25	2