Weather Records on 15 May 1943

568 weather records were set or tied worldwide on 15 May 1943. Highest significance: Grant City, US.

Key Facts for 15 May 1943

On 15 May 1943, 568 weather records were set or tied at long-record stations worldwide.
107 were record highs and 164 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 556 daily.
Grant City set a daily record precipitation of 85.3 mm (3.4 in) on 15 May 1943.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 430 records.

Record Map

568 stations

568 station records on 15 May 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Grant City	United States	Record daily precipitation	85.3 mm (3.4 in)	57 of 100 (Notable)
Conception	United States	Record daily precipitation	82.0 mm (3.2 in)	55 of 100 (Notable)
Chariton 1 E	United States	Record daily precipitation	72.1 mm (2.8 in)	54 of 100 (Notable)
Columbus Junction	United States	Record daily precipitation	65.3 mm (2.6 in)	52 of 100 (Notable)
Ashland #2	United States	Record daily precipitation	61.5 mm (2.4 in)	51 of 100 (Notable)
Millerton	United States	Record daily precipitation	72.4 mm (2.9 in)	50 of 100 (Notable)
Bundanoon Bowling Club	Australia	Record daily precipitation	168.9 mm (6.6 in)	49 of 100 (Notable)
Centerville	United States	Record daily precipitation	60.7 mm (2.4 in)	49 of 100 (Notable)
Afton	United States	Record daily precipitation	77.5 mm (3.1 in)	48 of 100 (Notable)
Audubon	United States	Record daily precipitation	63.5 mm (2.5 in)	48 of 100 (Notable)
Washington	United States	Record daily precipitation	57.2 mm (2.3 in)	47 of 100 (Notable)
Greenfield	United States	Record daily precipitation	65.0 mm (2.6 in)	46 of 100 (Notable)
Indianola 1SW	United States	Record daily precipitation	67.3 mm (2.6 in)	46 of 100 (Notable)
Monroe	United States	Record daily precipitation	63.2 mm (2.5 in)	45 of 100 (Notable)
Ottumwa 1 WSW	United States	Record daily precipitation	52.8 mm (2.1 in)	45 of 100 (Notable)
Bethany	United States	Record daily precipitation	52.8 mm (2.1 in)	45 of 100 (Notable)
Doodlakine	Australia	Record daily precipitation	34.8 mm (1.4 in)	44 of 100 (Notable)
Walk Walkin	Australia	Record daily precipitation	40.9 mm (1.6 in)	44 of 100 (Notable)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	54.6 mm (2.1 in)	44 of 100 (Notable)
Falls City Brenner Fld	United States	Record daily precipitation	76.2 mm (3.0 in)	43 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	104.1 mm (4.1 in)	42 of 100 (Notable)
Clifton Hill	United States	Record daily precipitation	58.7 mm (2.3 in)	42 of 100 (Notable)
Oakey Post Office	Australia	Record daily precipitation	45.5 mm (1.8 in)	41 of 100 (Notable)
Corning	United States	Record daily precipitation	62.2 mm (2.4 in)	41 of 100 (Notable)
Syracuse	United States	Record daily precipitation	46.5 mm (1.8 in)	41 of 100 (Notable)
Bustard Head Lighthouse	Australia	Record daily precipitation	72.9 mm (2.9 in)	40 of 100 (Notable)
Fairfield	United States	Record daily precipitation	63.2 mm (2.5 in)	40 of 100 (Notable)
Oregon	United States	Record daily precipitation	52.1 mm (2.1 in)	40 of 100 (Notable)
Denison	United States	Record daily precipitation	81.0 mm (3.2 in)	39 of 100 (Notable)
Waukee	United States	Record daily precipitation	53.3 mm (2.1 in)	39 of 100 (Notable)
Gladstone Post Office	Australia	Record daily precipitation	38.9 mm (1.5 in)	38 of 100 (Notable)
Harlan	United States	Record daily precipitation	45.2 mm (1.8 in)	37 of 100 (Notable)
Lakeview 2 NNW	United States	Record daily snowfall	5.1 cm (2.0 in)	37 of 100 (Notable)
Lamoni	United States	Record daily precipitation	96.5 mm (3.8 in)	36 of 100 (Notable)
Sandvig	Denmark	Record high minimum temperature	13.0 C (55.4 F)	35 of 100 (Notable)
Mahukona 159	United States	Record high minimum temperature	26.1 C (79.0 F)	35 of 100 (Notable)
Davenport L&D 15	United States	Record daily precipitation	43.7 mm (1.7 in)	35 of 100 (Notable)
Hay (Corrong)	Australia	Record daily precipitation	28.4 mm (1.1 in)	34 of 100 (Routine)
Knoxville	United States	Record daily precipitation	71.1 mm (2.8 in)	34 of 100 (Routine)
Logan 1 WNW	United States	Record daily precipitation	61.7 mm (2.4 in)	34 of 100 (Routine)
Stockport	United States	Record daily precipitation	42.9 mm (1.7 in)	34 of 100 (Routine)
Concordia ASOS	United States	Record daily precipitation	45.2 mm (1.8 in)	34 of 100 (Routine)
Dubuque River	United States	Record daily precipitation	33.0 mm (1.3 in)	34 of 100 (Routine)
Springfield Abraham Lincoln Ca	United States	Record daily precipitation	60.2 mm (2.4 in)	34 of 100 (Routine)
Cumberland	United States	Record daily precipitation	45.2 mm (1.8 in)	33 of 100 (Routine)
Kings Tablelands	Australia	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Sofala Old Post Office	Australia	Record daily precipitation	32.3 mm (1.3 in)	32 of 100 (Routine)
Mandya	India	Record daily precipitation	52.1 mm (2.1 in)	32 of 100 (Routine)
Vastervik	Sweden	Record high minimum temperature	13.0 C (55.4 F)	32 of 100 (Routine)
Fairmont	United States	Record daily precipitation	41.7 mm (1.6 in)	32 of 100 (Routine)
Edmonton	Canada	Record daily snowfall	5.1 cm (2.0 in)	31 of 100 (Routine)
Putbus	Germany	Record high minimum temperature	12.4 C (54.3 F)	31 of 100 (Routine)
Milton Post Office	Australia	Record daily precipitation	60.7 mm (2.4 in)	30 of 100 (Routine)
Harnosand	Sweden	Record high minimum temperature	9.2 C (48.6 F)	30 of 100 (Routine)
Atchison	United States	Record daily precipitation	53.3 mm (2.1 in)	30 of 100 (Routine)
Maryville 2E	United States	Record daily precipitation	69.6 mm (2.7 in)	30 of 100 (Routine)
Albion Park Post Office	Australia	Record daily precipitation	62.2 mm (2.4 in)	29 of 100 (Routine)
Thurman	United States	Record daily precipitation	49.5 mm (1.9 in)	29 of 100 (Routine)
Holton	United States	Record daily precipitation	45.7 mm (1.8 in)	29 of 100 (Routine)
St Joseph	United States	Record daily precipitation	62.7 mm (2.5 in)	29 of 100 (Routine)

Counts by Type and Timescale

568 records

Records set or tied on 15 May 1943 by type: Highest daily maximum 44, Lowest daily maximum 80, Highest daily minimum 63, Lowest daily minimum 84, Heaviest daily rainfall 286, Heaviest daily snowfall 11.

Records on 15 May 1943 by type
Record type	Records
Highest daily maximum	44
Lowest daily maximum	80
Highest daily minimum	63
Lowest daily minimum	84
Heaviest daily rainfall	286
Heaviest daily snowfall	11
Deepest snow cover	0

Records on 15 May 1943 by timescale: all-time 0, monthly 12, daily 556.

How Much Records Were Beaten By

457 broken records

Margins by which the 457 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 141.0. Ties are not counted.

Top 20 by Significance

15 May 1943

Top 20 records on 15 May 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1943	Grant City, US	daily rain	85.3 mm (3.4 in)	48.2 mm (1.9 in)	46 years	57 of 100 (Notable)
15 May 1943	Conception, US	daily rain	82.0 mm (3.2 in)	52.5 mm (2.1 in)	42 years	55 of 100 (Notable)
15 May 1943	Chariton 1 E, US	daily rain	72.1 mm (2.8 in)	58.6 mm (2.3 in)	33 years	54 of 100 (Notable)
15 May 1943	Columbus Junction, US	daily rain	65.3 mm (2.6 in)	56.4 mm (2.2 in)	29 years	52 of 100 (Notable)
15 May 1943	Ashland #2, US	daily rain	61.5 mm (2.4 in)	40.9 mm (1.6 in)	33 years	51 of 100 (Notable)
15 May 1943	Millerton, US	daily rain	72.4 mm (2.9 in)	52.8 mm (2.1 in)	17 years	50 of 100 (Notable)
15 May 1943	Bundanoon Bowling Club, AU	daily rain	168.9 mm (6.6 in)	141.0 mm (5.6 in)	18 years	49 of 100 (Notable)
15 May 1943	Centerville, US	daily rain	60.7 mm (2.4 in)	35.3 mm (1.4 in)	46 years	49 of 100 (Notable)
15 May 1943	Afton, US	daily rain	77.5 mm (3.1 in)	44.2 mm (1.7 in)	29 years	48 of 100 (Notable)
15 May 1943	Audubon, US	daily rain	63.5 mm (2.5 in)	39.1 mm (1.5 in)	29 years	48 of 100 (Notable)
15 May 1943	Washington, US	daily rain	57.2 mm (2.3 in)	36.1 mm (1.4 in)	33 years	47 of 100 (Notable)
15 May 1943	Greenfield, US	daily rain	65.0 mm (2.6 in)	39.3 mm (1.5 in)	42 years	46 of 100 (Notable)
15 May 1943	Indianola 1SW, US	daily rain	67.3 mm (2.6 in)	37.1 mm (1.5 in)	29 years	46 of 100 (Notable)
15 May 1943	Monroe, US	daily rain	63.2 mm (2.5 in)	40.8 mm (1.6 in)	29 years	45 of 100 (Notable)
15 May 1943	Ottumwa 1 WSW, US	daily rain	52.8 mm (2.1 in)	33.7 mm (1.3 in)	42 years	45 of 100 (Notable)
15 May 1943	Bethany, US	daily rain	52.8 mm (2.1 in)	34.5 mm (1.4 in)	46 years	45 of 100 (Notable)
15 May 1943	Doodlakine, AU	daily rain	34.8 mm (1.4 in)	30.7 mm (1.2 in)	5 years	44 of 100 (Notable)
15 May 1943	Walk Walkin, AU	daily rain	40.9 mm (1.6 in)	38.1 mm (1.5 in)	5 years	44 of 100 (Notable)
15 May 1943	Lincoln UNIV Pwr Plt, US	daily rain	54.6 mm (2.1 in)	28.2 mm (1.1 in)	53 years	44 of 100 (Notable)
15 May 1943	Falls City Brenner Fld, US	daily rain	76.2 mm (3.0 in)	55.9 mm (2.2 in)	14 years	43 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

1820 to 1943

Records set or tied on this calendar date in each year from 1820 to 1943. 1943 had 568 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 1943-05-15: 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 20	381
20 to 40	58
40 to 60	17
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1