Weather Records on 17 May 1943

855 weather records were set or tied worldwide on 17 May 1943. Highest significance: Vanur, IN.

Key Facts for 17 May 1943

On 17 May 1943, 855 weather records were set or tied at long-record stations worldwide.
272 were record highs and 220 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 47 monthly and 805 daily.
Vanur set a monthly record daily precipitation of 234.7 mm (9.2 in) on 17 May 1943.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 432 records.

Record Map

855 stations

855 station records on 17 May 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 May 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vanur	India	Record daily precipitation	234.7 mm (9.2 in)	65 of 100 (Major)
Arkonam	India	Record daily precipitation	180.3 mm (7.1 in)	64 of 100 (Major)
Cheyyar	India	Record daily precipitation	173.0 mm (6.8 in)	64 of 100 (Major)
Augustus Downs Station	Australia	Record daily precipitation	105.4 mm (4.1 in)	62 of 100 (Major)
Gingee	India	Record daily precipitation	139.7 mm (5.5 in)	61 of 100 (Major)
Mercanam	India	Record daily precipitation	157.5 mm (6.2 in)	61 of 100 (Major)
Lorraine	Australia	Record daily precipitation	81.8 mm (3.2 in)	59 of 100 (Notable)
Dapto West (Stane Dykes)	Australia	Record daily precipitation	249.4 mm (9.8 in)	59 of 100 (Notable)
Mahabalipuram Obsy	India	Record daily precipitation	195.1 mm (7.7 in)	59 of 100 (Notable)
Jamberoo (Lorna)	Australia	Record daily precipitation	199.4 mm (7.9 in)	57 of 100 (Notable)
Mittagong (Beatrice Street)	Australia	Record daily precipitation	120.9 mm (4.8 in)	57 of 100 (Notable)
Cuddalore	India	Record daily precipitation	251.7 mm (9.9 in)	57 of 100 (Notable)
Edwardsville 2 W	United States	Record daily precipitation	151.6 mm (6.0 in)	57 of 100 (Notable)
Gerringong (Mayflower Village)	Australia	Record daily precipitation	135.1 mm (5.3 in)	56 of 100 (Notable)
Kiama Bowling Club	Australia	Record daily precipitation	144.8 mm (5.7 in)	56 of 100 (Notable)
Menangle	Australia	Record daily precipitation	92.7 mm (3.6 in)	56 of 100 (Notable)
Villupuram	India	Record daily precipitation	137.2 mm (5.4 in)	56 of 100 (Notable)
Danville	United States	Record daily precipitation	99.6 mm (3.9 in)	56 of 100 (Notable)
Marion 2 N	United States	Record daily precipitation	56.4 mm (2.2 in)	56 of 100 (Notable)
Madras/Minambakkam	India	Record daily precipitation	214.9 mm (8.5 in)	55 of 100 (Notable)
Auckland Downs Station	Australia	Record daily precipitation	36.8 mm (1.4 in)	54 of 100 (Notable)
Taralga (Grathawai)	Australia	Record daily precipitation	58.4 mm (2.3 in)	54 of 100 (Notable)
Golspie (Ayrston)	Australia	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Cataract River	Australia	Record daily precipitation	101.6 mm (4.0 in)	54 of 100 (Notable)
Concord Walker Hospital	Australia	Record daily precipitation	82.0 mm (3.2 in)	53 of 100 (Notable)
Cobbity (Roseneath)	Australia	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
St Louis Eads Brg	United States	Record daily precipitation	75.4 mm (3.0 in)	53 of 100 (Notable)
Cataract Dam	Australia	Record daily precipitation	153.9 mm (6.1 in)	52 of 100 (Notable)
Crookhaven Heads	Australia	Record daily precipitation	112.3 mm (4.4 in)	52 of 100 (Notable)
Albion Park Post Office	Australia	Record daily precipitation	149.1 mm (5.9 in)	51 of 100 (Notable)
Appin Church St	Australia	Record daily precipitation	148.6 mm (5.9 in)	51 of 100 (Notable)
Campbelltown 1	Australia	Record daily precipitation	74.2 mm (2.9 in)	51 of 100 (Notable)
Chittur	India	Record daily precipitation	116.8 mm (4.6 in)	51 of 100 (Notable)
Chingleput	India	Record daily precipitation	198.4 mm (7.8 in)	51 of 100 (Notable)
Huntington	United States	Record daily precipitation	59.7 mm (2.4 in)	51 of 100 (Notable)
Minchinbury	Australia	Record daily precipitation	86.9 mm (3.4 in)	50 of 100 (Notable)
Burrawang (Range Street)	Australia	Record daily precipitation	205.5 mm (8.1 in)	50 of 100 (Notable)
Penrose (Panorama)	Australia	Record daily precipitation	130.0 mm (5.1 in)	50 of 100 (Notable)
Sutton Forest (Uralba)	Australia	Record daily precipitation	165.1 mm (6.5 in)	50 of 100 (Notable)
Peermade Residen	India	Record daily precipitation	242.1 mm (9.5 in)	50 of 100 (Notable)
Champaign 3S	United States	Record daily precipitation	88.4 mm (3.5 in)	50 of 100 (Notable)
Ft Wayne Maumee	United States	Record daily precipitation	52.1 mm (2.1 in)	50 of 100 (Notable)
Whitestown	United States	Record daily precipitation	72.1 mm (2.8 in)	50 of 100 (Notable)
Darkes Forest (Kintyre)	Australia	Record daily precipitation	125.2 mm (4.9 in)	49 of 100 (Notable)
Exeter	Australia	Record daily precipitation	198.6 mm (7.8 in)	49 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	99.1 mm (3.9 in)	49 of 100 (Notable)
Paris Stp	United States	Record daily precipitation	67.3 mm (2.6 in)	49 of 100 (Notable)
Warrenton 1 N	United States	Record daily precipitation	61.5 mm (2.4 in)	49 of 100 (Notable)
Marulan (Arthursleigh)	Australia	Record daily precipitation	130.0 mm (5.1 in)	48 of 100 (Notable)
Saidapet	India	Record daily precipitation	204.5 mm (8.1 in)	48 of 100 (Notable)
White Hall 1 E	United States	Record daily precipitation	49.0 mm (1.9 in)	48 of 100 (Notable)
Salamonia	United States	Record daily precipitation	56.6 mm (2.2 in)	48 of 100 (Notable)
Chandler	United States	Record daily precipitation	92.2 mm (3.6 in)	48 of 100 (Notable)
Pawhuska	United States	Record daily precipitation	107.4 mm (4.2 in)	48 of 100 (Notable)
Methven	Australia	Record daily precipitation	53.3 mm (2.1 in)	47 of 100 (Notable)
Sholingur	India	Record daily precipitation	94.0 mm (3.7 in)	47 of 100 (Notable)
Chidambaram	India	Record daily precipitation	137.7 mm (5.4 in)	47 of 100 (Notable)
Carlinville	United States	Record daily precipitation	67.1 mm (2.6 in)	47 of 100 (Notable)
Neosho	United States	Record daily precipitation	113.0 mm (4.4 in)	47 of 100 (Notable)
Springfield	United States	Record daily precipitation	75.2 mm (3.0 in)	47 of 100 (Notable)

Counts by Type and Timescale

855 records

Records set or tied on 17 May 1943 by type: Highest daily maximum 39, Lowest daily maximum 88, Highest daily minimum 233, Lowest daily minimum 132, Heaviest daily rainfall 357, Heaviest daily snowfall 6.

Records on 17 May 1943 by type
Record type	Records
Highest daily maximum	39
Lowest daily maximum	88
Highest daily minimum	233
Lowest daily minimum	132
Heaviest daily rainfall	357
Heaviest daily snowfall	6
Deepest snow cover	0

Records on 17 May 1943 by timescale: all-time 3, monthly 47, daily 805.

How Much Records Were Beaten By

697 broken records

Margins by which the 697 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 173.5. Ties are not counted.

Top 20 by Significance

17 May 1943

Top 20 records on 17 May 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 May 1943	Vanur, IN	monthly rain	234.7 mm (9.2 in)	133.1 mm (5.2 in)	39 years	65 of 100 (Major)
17 May 1943	Arkonam, IN	monthly rain	180.3 mm (7.1 in)	83.8 mm (3.3 in)	34 years	64 of 100 (Major)
17 May 1943	Cheyyar, IN	monthly rain	173.0 mm (6.8 in)	107.7 mm (4.2 in)	34 years	64 of 100 (Major)
17 May 1943	Augustus Downs Station, AU	monthly rain	105.4 mm (4.1 in)	49.5 mm (1.9 in)	25 years	62 of 100 (Major)
17 May 1943	Gingee, IN	monthly rain	139.7 mm (5.5 in)	72.9 mm (2.9 in)	25 years	61 of 100 (Major)
17 May 1943	Mercanam, IN	monthly rain	157.5 mm (6.2 in)	78.8 mm (3.1 in)	25 years	61 of 100 (Major)
17 May 1943	Lorraine, AU	monthly rain	81.8 mm (3.2 in)	43.4 mm (1.7 in)	20 years	59 of 100 (Notable)
17 May 1943	Dapto West (Stane Dykes), AU	monthly rain	249.4 mm (9.8 in)	99.0 mm (3.9 in)	18 years	59 of 100 (Notable)
17 May 1943	Mahabalipuram Obsy, IN	monthly rain	195.1 mm (7.7 in)	75.2 mm (3.0 in)	34 years	59 of 100 (Notable)
17 May 1943	Jamberoo (Lorna), AU	daily rain	199.4 mm (7.9 in)	154.9 mm (6.1 in)	42 years	57 of 100 (Notable)
17 May 1943	Mittagong (Beatrice Street), AU	daily rain	120.9 mm (4.8 in)	76.4 mm (3.0 in)	42 years	57 of 100 (Notable)
17 May 1943	Cuddalore, IN	monthly rain	251.7 mm (9.9 in)	98.3 mm (3.9 in)	13 years	57 of 100 (Notable)
17 May 1943	Edwardsville 2 W, US	monthly rain	151.6 mm (6.0 in)	87.1 mm (3.4 in)	9 years	57 of 100 (Notable)
17 May 1943	Gerringong (Mayflower Village), AU	daily rain	135.1 mm (5.3 in)	91.9 mm (3.6 in)	42 years	56 of 100 (Notable)
17 May 1943	Kiama Bowling Club, AU	daily rain	144.8 mm (5.7 in)	104.9 mm (4.1 in)	42 years	56 of 100 (Notable)
17 May 1943	Menangle, AU	daily rain	92.7 mm (3.6 in)	77.5 mm (3.1 in)	42 years	56 of 100 (Notable)
17 May 1943	Villupuram, IN	daily rain	137.2 mm (5.4 in)	94.5 mm (3.7 in)	40 years	56 of 100 (Notable)
17 May 1943	Danville, US	monthly rain	99.6 mm (3.9 in)	39.7 mm (1.6 in)	16 years	56 of 100 (Notable)
17 May 1943	Marion 2 N, US	daily rain	56.4 mm (2.2 in)	43.7 mm (1.7 in)	37 years	56 of 100 (Notable)
17 May 1943	Madras/Minambakkam, IN	monthly rain	214.9 mm (8.5 in)	82.3 mm (3.2 in)	34 years	55 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

1802 to 1943

Records set or tied on this calendar date in each year from 1802 to 1943. 1943 had 855 records.

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

Records on 05-17 in each year
Year	Records
1802	2
1803	1
1808	1
1816	1
1834	1
1837	1
1839	1
1847	2
1848	1
1851	1
1853	1
1855	1
1858	1
1859	1
1861	2
1862	2
1863	2
1864	1
1871	2
1872	2
1873	2
1874	4
1877	1
1878	1
1879	2
1880	1
1881	1
1882	2
1883	3
1885	1
1887	1
1888	2
1889	3
1891	8
1892	4
1893	3
1895	8
1896	2
1897	3
1898	6
1899	7
1900	12
1901	2
1902	3
1903	9
1904	12
1905	10
1906	22
1907	10
1908	5
1909	33
1910	16
1911	30
1912	16
1913	24
1914	24
1915	53
1916	49
1917	18
1918	56
1919	35
1920	46
1921	50
1922	30
1923	95
1924	80
1925	326
1926	133
1927	264
1928	127
1929	168
1930	421
1931	201
1932	288
1933	365
1934	373
1935	341
1936	270
1937	183
1938	340
1939	285
1940	338
1941	408
1942	589
1943	855
1944	521
1945	799
1946	586
1947	249
1948	412
1949	544
1950	371
1951	373
1952	777
1953	441
1954	298
1955	570
1956	1,166
1957	469
1958	331
1959	488
1960	402
1961	291
1962	1,325
1963	368
1964	417
1965	462
1966	489
1967	644
1968	564
1969	638
1970	711
1971	723
1972	610
1973	1,016
1974	1,302
1975	365
1976	426
1977	1,078
1978	872
1979	459
1980	768
1981	940
1982	476
1983	1,326
1984	925
1985	561
1986	921
1987	1,054
1988	1,096
1989	1,307
1990	1,135
1991	1,237
1992	1,025
1993	495
1994	858
1995	1,734
1996	1,706
1997	1,619
1998	1,080
1999	795
2000	825
2001	960
2002	964
2003	1,127
2004	769
2005	784
2006	1,522
2007	742
2008	1,309
2009	1,050
2010	880
2011	1,483
2012	711
2013	739
2014	1,062
2015	824
2016	741
2017	1,302
2018	726
2019	686
2020	496
2021	443
2022	479
2023	385
2024	566
2025	928
2026	745

Download the Data

Data for records on 1943-05-17: 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	547
25 to 50	91
50 to 75	27
75 to 100	20
100 to 125	5
125 to 150	3
150 to 175	4