Weather Records on 18 May 1943

744 weather records were set or tied worldwide on 18 May 1943. Highest significance: Villupuram, IN.

Key Facts for 18 May 1943

On 18 May 1943, 744 weather records were set or tied at long-record stations worldwide.
198 were record highs and 183 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 28 monthly and 707 daily.
Villupuram set an all-time record daily precipitation of 336.6 mm (13.3 in) on 18 May 1943.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 441 records.

Record Map

744 stations

744 station records on 18 May 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Villupuram	India	Record daily precipitation	336.6 mm (13.3 in)	69 of 100 (Major)
Audley National Park Bottom St	Australia	Record daily precipitation	285.8 mm (11.3 in)	68 of 100 (Major)
Tiruvannamalai	India	Record daily precipitation	162.6 mm (6.4 in)	65 of 100 (Major)
Vriddhachalam	India	Record daily precipitation	252.7 mm (9.9 in)	65 of 100 (Major)
Gingee	India	Record daily precipitation	282.2 mm (11.1 in)	62 of 100 (Major)
Manfred Downs Station	Australia	Record daily precipitation	40.6 mm (1.6 in)	61 of 100 (Major)
Donors Hill Station	Australia	Record daily precipitation	63.8 mm (2.5 in)	60 of 100 (Major)
Puttur	India	Record daily precipitation	236.2 mm (9.3 in)	57 of 100 (Notable)
Kallakurichi	India	Record daily precipitation	178.1 mm (7.0 in)	57 of 100 (Notable)
Kattumannarkoil	India	Record daily precipitation	245.6 mm (9.7 in)	57 of 100 (Notable)
Srimushnam	India	Record daily precipitation	265.9 mm (10.5 in)	57 of 100 (Notable)
Ulundurpet	India	Record daily precipitation	268.2 mm (10.6 in)	57 of 100 (Notable)
Sirkali	India	Record daily precipitation	276.9 mm (10.9 in)	57 of 100 (Notable)
Dapto West (Stane Dykes)	Australia	Record daily precipitation	167.6 mm (6.6 in)	56 of 100 (Notable)
Mayuram	India	Record daily precipitation	178.6 mm (7.0 in)	56 of 100 (Notable)
Granada Station	Australia	Record daily precipitation	34.5 mm (1.4 in)	55 of 100 (Notable)
Arkonam	India	Record daily precipitation	111.3 mm (4.4 in)	55 of 100 (Notable)
Wyong (Wyong Golf Club)	Australia	Record daily precipitation	82.8 mm (3.3 in)	54 of 100 (Notable)
Tiruppattur	India	Record daily precipitation	104.4 mm (4.1 in)	54 of 100 (Notable)
Porto Novo	India	Record daily precipitation	314.5 mm (12.4 in)	54 of 100 (Notable)
Tirukoilur	India	Record daily precipitation	161.8 mm (6.4 in)	53 of 100 (Notable)
Joplin	United States	Record daily precipitation	184.7 mm (7.3 in)	53 of 100 (Notable)
Pokolbin (Ben Ean)	Australia	Record daily precipitation	66.0 mm (2.6 in)	51 of 100 (Notable)
Panruti	India	Record daily precipitation	297.7 mm (11.7 in)	51 of 100 (Notable)
Marion 2 N	United States	Record daily precipitation	53.8 mm (2.1 in)	51 of 100 (Notable)
Pokolbin 1 Post Office	Australia	Record daily precipitation	77.0 mm (3.0 in)	49 of 100 (Notable)
Darbys Falls (Riverslea)	Australia	Record daily precipitation	68.1 mm (2.7 in)	49 of 100 (Notable)
Palghat	India	Record daily precipitation	148.3 mm (5.8 in)	49 of 100 (Notable)
Burketown Post Office	Australia	Record daily precipitation	28.7 mm (1.1 in)	47 of 100 (Notable)
Wollong	Australia	Record daily precipitation	78.7 mm (3.1 in)	47 of 100 (Notable)
Parli	India	Record daily precipitation	121.9 mm (4.8 in)	47 of 100 (Notable)
Lebanon 2W	United States	Record daily precipitation	102.9 mm (4.1 in)	47 of 100 (Notable)
Wyee (Wyee Farms Rd)	Australia	Record daily precipitation	99.1 mm (3.9 in)	46 of 100 (Notable)
Vanur	India	Record daily precipitation	295.9 mm (11.6 in)	46 of 100 (Notable)
Iola 1 W	United States	Record daily precipitation	85.6 mm (3.4 in)	46 of 100 (Notable)
Harrisonville	United States	Record daily precipitation	82.6 mm (3.3 in)	46 of 100 (Notable)
Tittagudi	India	Record daily precipitation	155.7 mm (6.1 in)	45 of 100 (Notable)
Tindivanam	India	Record daily precipitation	256.0 mm (10.1 in)	45 of 100 (Notable)
Grafton	United States	Record daily precipitation	74.9 mm (2.9 in)	45 of 100 (Notable)
Nagappattinam	India	Record daily precipitation	95.5 mm (3.8 in)	44 of 100 (Notable)
Tranqubar	India	Record daily precipitation	82.6 mm (3.3 in)	44 of 100 (Notable)
Idaho Springs	United States	Record daily snowfall	17.8 cm (7.0 in)	44 of 100 (Notable)
Eldon	United States	Record daily precipitation	85.3 mm (3.4 in)	44 of 100 (Notable)
Cessnock Post Office	Australia	Record daily precipitation	64.0 mm (2.5 in)	42 of 100 (Notable)
Appleton City	United States	Record daily precipitation	139.7 mm (5.5 in)	42 of 100 (Notable)
Venkatagiri	India	Record daily precipitation	136.1 mm (5.4 in)	41 of 100 (Notable)
Wallajah	India	Record daily precipitation	112.0 mm (4.4 in)	40 of 100 (Notable)
Nannilam	India	Record daily precipitation	96.0 mm (3.8 in)	40 of 100 (Notable)
Cobar (Meryula)	Australia	Record daily precipitation	38.1 mm (1.5 in)	39 of 100 (Notable)
Jackson	United States	Record daily precipitation	58.2 mm (2.3 in)	39 of 100 (Notable)
Marble Hill	United States	Record daily precipitation	63.2 mm (2.5 in)	39 of 100 (Notable)
Maitland West	Australia	Record daily precipitation	33.0 mm (1.3 in)	38 of 100 (Notable)
Chidambaram	India	Record daily precipitation	359.4 mm (14.1 in)	38 of 100 (Notable)
Seymour 1 NNW	United States	Record daily precipitation	71.9 mm (2.8 in)	38 of 100 (Notable)
Greta Post Office	Australia	Record daily precipitation	44.5 mm (1.8 in)	37 of 100 (Notable)
Kumbhakonam	India	Record daily precipitation	93.5 mm (3.7 in)	37 of 100 (Notable)
Tiruvarur	India	Record daily precipitation	77.7 mm (3.1 in)	37 of 100 (Notable)
Iffley Station	Australia	Record daily precipitation	59.9 mm (2.4 in)	36 of 100 (Notable)
Kings Tablelands	Australia	Record daily precipitation	38.1 mm (1.5 in)	36 of 100 (Notable)
Kodavasal	India	Record daily precipitation	82.0 mm (3.2 in)	36 of 100 (Notable)

Counts by Type and Timescale

744 records

Records set or tied on 18 May 1943 by type: Highest daily maximum 44, Lowest daily maximum 93, Highest daily minimum 154, Lowest daily minimum 90, Heaviest daily rainfall 358, Heaviest daily snowfall 5.

Records on 18 May 1943 by type
Record type	Records
Highest daily maximum	44
Lowest daily maximum	93
Highest daily minimum	154
Lowest daily minimum	90
Heaviest daily rainfall	358
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 18 May 1943 by timescale: all-time 9, monthly 28, daily 707.

How Much Records Were Beaten By

618 broken records

Margins by which the 618 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 187.5. Ties are not counted.

Top 20 by Significance

18 May 1943

Top 20 records on 18 May 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1943	Villupuram, IN	all-time rain	336.6 mm (13.3 in)	109.3 mm (4.3 in)	18 years	69 of 100 (Major)
18 May 1943	Audley National Park Bottom St, AU	all-time rain	285.8 mm (11.3 in)	69.9 mm (2.8 in)	32 years	68 of 100 (Major)
18 May 1943	Tiruvannamalai, IN	monthly rain	162.6 mm (6.4 in)	67.9 mm (2.7 in)	39 years	65 of 100 (Major)
18 May 1943	Vriddhachalam, IN	monthly rain	252.7 mm (9.9 in)	158.7 mm (6.2 in)	38 years	65 of 100 (Major)
18 May 1943	Gingee, IN	all-time rain	282.2 mm (11.1 in)	48.5 mm (1.9 in)	5 years	62 of 100 (Major)
18 May 1943	Manfred Downs Station, AU	daily rain	40.6 mm (1.6 in)	40.6 mm (1.6 in)	54 years	61 of 100 (Major)
18 May 1943	Donors Hill Station, AU	daily rain	63.8 mm (2.5 in)	63.8 mm (2.5 in)	52 years	60 of 100 (Major)
18 May 1943	Puttur, IN	monthly rain	236.2 mm (9.3 in)	98.3 mm (3.9 in)	13 years	57 of 100 (Notable)
18 May 1943	Kallakurichi, IN	monthly rain	178.1 mm (7.0 in)	101.9 mm (4.0 in)	13 years	57 of 100 (Notable)
18 May 1943	Kattumannarkoil, IN	monthly rain	245.6 mm (9.7 in)	142.2 mm (5.6 in)	13 years	57 of 100 (Notable)
18 May 1943	Srimushnam, IN	monthly rain	265.9 mm (10.5 in)	159.2 mm (6.3 in)	13 years	57 of 100 (Notable)
18 May 1943	Ulundurpet, IN	monthly rain	268.2 mm (10.6 in)	153.9 mm (6.1 in)	13 years	57 of 100 (Notable)
18 May 1943	Sirkali, IN	monthly rain	276.9 mm (10.9 in)	111.8 mm (4.4 in)	13 years	57 of 100 (Notable)
18 May 1943	Dapto West (Stane Dykes), AU	daily rain	167.6 mm (6.6 in)	163.0 mm (6.4 in)	42 years	56 of 100 (Notable)
18 May 1943	Mayuram, IN	daily rain	178.6 mm (7.0 in)	150.7 mm (5.9 in)	40 years	56 of 100 (Notable)
18 May 1943	Granada Station, AU	daily rain	34.5 mm (1.4 in)	34.5 mm (1.4 in)	54 years	55 of 100 (Notable)
18 May 1943	Arkonam, IN	daily rain	111.3 mm (4.4 in)	76.0 mm (3.0 in)	37 years	55 of 100 (Notable)
18 May 1943	Wyong (Wyong Golf Club), AU	daily rain	82.8 mm (3.3 in)	63.7 mm (2.5 in)	55 years	54 of 100 (Notable)
18 May 1943	Tiruppattur, IN	daily rain	104.4 mm (4.1 in)	61.5 mm (2.4 in)	38 years	54 of 100 (Notable)
18 May 1943	Porto Novo, IN	monthly rain	314.5 mm (12.4 in)	187.5 mm (7.4 in)	0 years	54 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

1796 to 1943

Records set or tied on this calendar date in each year from 1796 to 1943. 1943 had 744 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1943-05-18: 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 25	508
25 to 50	67
50 to 75	25
75 to 100	4
100 to 125	6
125 to 150	1
150 to 175	5
175 to 200	2