Weather Records on 18 June 1918

118 weather records were set or tied worldwide on 18 June 1918. Highest significance: Moonaree, AU.

Key Facts for 18 June 1918

On 18 June 1918, 118 weather records were set or tied at long-record stations worldwide.
19 were record highs and 7 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 117 daily.
Moonaree set a daily record precipitation of 32.0 mm (1.3 in) on 18 June 1918.
Across 162 earlier years (1800 to 2026) the same calendar date averaged 438 records.

Record Map

118 stations

118 station records on 18 June 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 June 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Moonaree	Australia	Record daily precipitation	32.0 mm (1.3 in)	52 of 100 (Notable)
Hawker (Warcowie)	Australia	Record daily precipitation	31.2 mm (1.2 in)	36 of 100 (Notable)
Hammond	Australia	Record daily precipitation	26.2 mm (1.0 in)	35 of 100 (Notable)
San Diego Wbo	United States	Record high minimum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Warburton	Australia	Record daily precipitation	30.7 mm (1.2 in)	30 of 100 (Routine)
Malmsbury Reservoir	Australia	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Penshurst (Post Office)	Australia	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Kanmantoo	Australia	Record daily precipitation	31.5 mm (1.2 in)	27 of 100 (Routine)
Strathbogie North	Australia	Record daily precipitation	52.6 mm (2.1 in)	27 of 100 (Routine)
Beech Forest	Australia	Record daily precipitation	39.1 mm (1.5 in)	27 of 100 (Routine)
Beeac (Eurack)	Australia	Record daily precipitation	26.4 mm (1.0 in)	27 of 100 (Routine)
Uccle	Belgium	Record low minimum temperature	5.1 C (41.2 F)	27 of 100 (Routine)
Houston Wb City	United States	Record high maximum temperature	39.4 C (102.9 F)	26 of 100 (Routine)
Macarthur (Glenhuntly)	Australia	Record daily precipitation	27.7 mm (1.1 in)	25 of 100 (Routine)
Kyneton Post Office	Australia	Record daily precipitation	29.7 mm (1.2 in)	23 of 100 (Routine)
Merino (Glenorchy Estate)	Australia	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Mount Gambier Post Office	Australia	Record daily precipitation	30.7 mm (1.2 in)	22 of 100 (Routine)
Port Germein (Telowie)	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Cundare South	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Cudgewa North	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Ocean Grove	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Warranooke (Glenorchy)	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Cape Schanck Lighthouse	Australia	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Hastings Post Office	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Portland	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Moobong	Australia	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Port Augusta (Carriewerloo STN	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Holbrook (Rsl)	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Beechworth Composite	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Metcalfe	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Lancefield	Australia	Record daily precipitation	24.1 mm (0.9 in)	19 of 100 (Routine)
Barkers Creek Reservoir	Australia	Record daily precipitation	25.4 mm (1.0 in)	19 of 100 (Routine)
Expedition Pass Reservoir	Australia	Record daily precipitation	21.1 mm (0.8 in)	19 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record high minimum temperature	23.9 C (75.0 F)	19 of 100 (Routine)
Harrow (Pine Hills)	Australia	Record daily precipitation	20.8 mm (0.8 in)	18 of 100 (Routine)
Woods Point	Australia	Record daily precipitation	43.2 mm (1.7 in)	18 of 100 (Routine)
Newry	Australia	Record daily precipitation	12.2 mm (0.5 in)	18 of 100 (Routine)
Geelong Sec	Australia	Record daily precipitation	13.0 mm (0.5 in)	18 of 100 (Routine)
Hvar	Croatia	Record high minimum temperature	23.8 C (74.8 F)	18 of 100 (Routine)
Gotska Sandon	Sweden	Record daily precipitation	11.9 mm (0.5 in)	18 of 100 (Routine)
Little Rock St Capitol	United States	Record high maximum temperature	36.7 C (98.1 F)	18 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	23.9 C (75.0 F)	18 of 100 (Routine)
Trainors Lagoon	Australia	Record daily precipitation	22.9 mm (0.9 in)	17 of 100 (Routine)
Violet Town	Australia	Record daily precipitation	21.6 mm (0.9 in)	17 of 100 (Routine)
Smeaton Weir	Australia	Record daily precipitation	16.0 mm (0.6 in)	17 of 100 (Routine)
Kinglake West (Wallaby Creek)	Australia	Record daily precipitation	24.6 mm (1.0 in)	17 of 100 (Routine)
Yea	Australia	Record daily precipitation	14.2 mm (0.6 in)	17 of 100 (Routine)
Berlin-Dahlem	Germany	Record daily precipitation	17.0 mm (0.7 in)	17 of 100 (Routine)
Wentworth (Cuthero)	Australia	Record daily precipitation	21.6 mm (0.9 in)	16 of 100 (Routine)
Bright Post Office	Australia	Record daily precipitation	43.2 mm (1.7 in)	16 of 100 (Routine)
Hamilton	Australia	Record daily precipitation	20.3 mm (0.8 in)	16 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record high maximum temperature	40.0 C (104.0 F)	16 of 100 (Routine)
Yalata	Australia	Record daily precipitation	10.2 mm (0.4 in)	15 of 100 (Routine)
Glen Dee	Australia	Record daily precipitation	14.7 mm (0.6 in)	15 of 100 (Routine)
Groongal (Groongal Station)	Australia	Record daily precipitation	10.9 mm (0.4 in)	15 of 100 (Routine)
Newlyn Reservoir	Australia	Record daily precipitation	22.1 mm (0.9 in)	15 of 100 (Routine)
Winchelsea (Murdeduke)	Australia	Record daily precipitation	22.9 mm (0.9 in)	15 of 100 (Routine)
Coleraine (Tulse Hill)	Australia	Record daily precipitation	20.3 mm (0.8 in)	15 of 100 (Routine)
Mortlake	Australia	Record daily precipitation	25.4 mm (1.0 in)	15 of 100 (Routine)
Casterton (Nangeela)	Australia	Record daily precipitation	20.6 mm (0.8 in)	15 of 100 (Routine)

Counts by Type and Timescale

118 records

Records set or tied on 18 June 1918 by type: Highest daily maximum 11, Lowest daily maximum 5, Highest daily minimum 8, Lowest daily minimum 2, Heaviest daily rainfall 92.

Records on 18 June 1918 by type
Record type	Records
Highest daily maximum	11
Lowest daily maximum	5
Highest daily minimum	8
Lowest daily minimum	2
Heaviest daily rainfall	92
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 June 1918 by timescale: all-time 0, monthly 1, daily 117.

How Much Records Were Beaten By

112 broken records

Margins by which the 112 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 26.2. Ties are not counted.

Top 20 by Significance

18 June 1918

Top 20 records on 18 June 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 June 1918	Moonaree, AU	daily rain	32.0 mm (1.3 in)	26.2 mm (1.0 in)	29 years	52 of 100 (Notable)
18 June 1918	Hawker (Warcowie), AU	daily rain	31.2 mm (1.2 in)	24.6 mm (1.0 in)	19 years	36 of 100 (Notable)
18 June 1918	Hammond, AU	daily rain	26.2 mm (1.0 in)	16.0 mm (0.6 in)	19 years	35 of 100 (Notable)
18 June 1918	San Diego Wbo, US	daily high min	20.6 C (69.1 F)	2.8 C (5.0 F)	30 years	32 of 100 (Routine)
18 June 1918	Warburton, AU	daily rain	30.7 mm (1.2 in)	14.7 mm (0.6 in)	36 years	30 of 100 (Routine)
18 June 1918	Malmsbury Reservoir, AU	daily rain	30.5 mm (1.2 in)	16.5 mm (0.6 in)	12 years	28 of 100 (Routine)
18 June 1918	Penshurst (Post Office), AU	daily rain	27.2 mm (1.1 in)	14.2 mm (0.6 in)	16 years	28 of 100 (Routine)
18 June 1918	Kanmantoo, AU	daily rain	31.5 mm (1.2 in)	10.7 mm (0.4 in)	20 years	27 of 100 (Routine)
18 June 1918	Strathbogie North, AU	daily rain	52.6 mm (2.1 in)	26.2 mm (1.0 in)	29 years	27 of 100 (Routine)
18 June 1918	Beech Forest, AU	daily rain	39.1 mm (1.5 in)	19.0 mm (0.7 in)	29 years	27 of 100 (Routine)
18 June 1918	Beeac (Eurack), AU	daily rain	26.4 mm (1.0 in)	9.1 mm (0.36 in)	16 years	27 of 100 (Routine)
18 June 1918	Uccle, BE	daily low min	5.1 C (41.2 F)	0.3 C (0.5 F)	62 years	27 of 100 (Routine)
18 June 1918	Houston Wb City, US	monthly high max	39.4 C (102.9 F)	1.1 C (2.0 F)	32 years	26 of 100 (Routine)
18 June 1918	Macarthur (Glenhuntly), AU	daily rain	27.7 mm (1.1 in)	13.0 mm (0.5 in)	7 years	25 of 100 (Routine)
18 June 1918	Kyneton Post Office, AU	daily rain	29.7 mm (1.2 in)	6.8 mm (0.27 in)	39 years	23 of 100 (Routine)
18 June 1918	Merino (Glenorchy Estate), AU	daily rain	30.5 mm (1.2 in)	11.7 mm (0.5 in)	8 years	23 of 100 (Routine)
18 June 1918	Mount Gambier Post Office, AU	daily rain	30.7 mm (1.2 in)	2.0 mm (0.08 in)	47 years	22 of 100 (Routine)
18 June 1918	Port Germein (Telowie), AU	daily rain	20.6 mm (0.8 in)	12.5 mm (0.5 in)	20 years	20 of 100 (Routine)
18 June 1918	Cundare South, AU	daily rain	21.6 mm (0.9 in)	10.2 mm (0.4 in)	11 years	20 of 100 (Routine)
18 June 1918	Cudgewa North, AU	daily rain	24.4 mm (1.0 in)	14.5 mm (0.6 in)	31 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

1800 to 1918

Records set or tied on this calendar date in each year from 1800 to 1918. 1918 had 118 records.

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

Records on 06-18 in each year
Year	Records
1800	1
1801	1
1802	1
1803	1
1816	1
1821	1
1823	1
1839	1
1841	1
1848	1
1855	1
1858	2
1859	1
1862	2
1865	1
1869	1
1870	1
1875	2
1876	1
1879	1
1880	1
1881	2
1882	2
1883	1
1884	1
1886	1
1888	3
1889	1
1890	3
1892	3
1893	1
1894	2
1895	3
1896	4
1897	5
1899	3
1900	4
1901	10
1902	7
1903	13
1904	5
1905	32
1906	16
1907	21
1908	20
1909	39
1910	15
1911	14
1912	25
1913	29
1914	43
1915	62
1916	29
1917	55
1918	118
1919	65
1920	53
1921	44
1922	57
1923	144
1924	108
1925	246
1926	176
1927	287
1928	205
1929	297
1930	379
1931	267
1932	219
1933	499
1934	335
1935	494
1936	549
1937	301
1938	391
1939	674
1940	620
1941	273
1942	201
1943	173
1944	726
1945	784
1946	532
1947	391
1948	421
1949	734
1950	828
1951	237
1952	435
1953	730
1954	460
1955	721
1956	373
1957	672
1958	532
1959	573
1960	394
1961	979
1962	302
1963	305
1964	840
1965	589
1966	431
1967	308
1968	556
1969	598
1970	486
1971	456
1972	334
1973	861
1974	719
1975	821
1976	508
1977	768
1978	516
1979	581
1980	447
1981	895
1982	736
1983	1,080
1984	716
1985	921
1986	862
1987	925
1988	748
1989	697
1990	795
1991	944
1992	579
1993	834
1994	1,156
1995	1,224
1996	1,004
1997	894
1998	1,600
1999	1,258
2000	1,474
2001	589
2002	1,397
2003	853
2004	1,056
2005	1,014
2006	699
2007	898
2008	628
2009	920
2010	928
2011	952
2012	832
2013	847
2014	732
2015	978
2016	787
2017	839
2018	968
2019	425
2020	572
2021	1,874
2022	1,194
2023	574
2024	1,150
2025	583
2026	830

Download the Data

Data for records on 1918-06-18: 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	68
5 to 10	24
10 to 15	14
15 to 20	3
20 to 25	1
25 to 30	2