Weather Records on 20 June 1943

447 weather records were set or tied worldwide on 20 June 1943. Highest significance: Cape Willoughby, AU.

Key Facts for 20 June 1943

On 20 June 1943, 447 weather records were set or tied at long-record stations worldwide.
140 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 4 monthly and 441 daily.
Cape Willoughby set a daily record precipitation of 35.6 mm (1.4 in) on 20 June 1943.
Across 158 earlier years (1800 to 2026) the same calendar date averaged 458 records.

Record Map

447 stations

447 station records on 20 June 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 June 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cape Willoughby	Australia	Record daily precipitation	35.6 mm (1.4 in)	61 of 100 (Major)
Aracaju	Brazil	Record daily precipitation	164.6 mm (6.5 in)	56 of 100 (Notable)
Achinsk	Russia	Record daily precipitation	35.7 mm (1.4 in)	56 of 100 (Notable)
Woodside	Australia	Record daily precipitation	54.1 mm (2.1 in)	50 of 100 (Notable)
Kanmantoo	Australia	Record daily precipitation	29.2 mm (1.1 in)	49 of 100 (Notable)
Aurora Water	United States	Record daily precipitation	54.1 mm (2.1 in)	47 of 100 (Notable)
Riverton	Australia	Record daily precipitation	26.9 mm (1.1 in)	46 of 100 (Notable)
Laura	Australia	Record daily precipitation	27.4 mm (1.1 in)	45 of 100 (Notable)
Sturgeon Bay Exp Farm	United States	Record daily precipitation	51.8 mm (2.0 in)	44 of 100 (Notable)
Modasa	India	Record daily precipitation	81.3 mm (3.2 in)	43 of 100 (Notable)
Grahamstown	South Africa	Record daily precipitation	48.5 mm (1.9 in)	41 of 100 (Notable)
Mahim	India	Record daily precipitation	210.1 mm (8.3 in)	40 of 100 (Notable)
St Ignace	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Chelsea	United States	Record daily precipitation	40.6 mm (1.6 in)	40 of 100 (Notable)
Maitland	Australia	Record daily precipitation	26.2 mm (1.0 in)	39 of 100 (Notable)
Marrabel	Australia	Record daily precipitation	26.7 mm (1.1 in)	39 of 100 (Notable)
Adelaide (Glen Osmond)	Australia	Record daily precipitation	28.2 mm (1.1 in)	38 of 100 (Notable)
Paw Paw 2S	United States	Record daily precipitation	44.5 mm (1.8 in)	38 of 100 (Notable)
Fort Fordyce (Bos)	South Africa	Record daily precipitation	35.1 mm (1.4 in)	36 of 100 (Notable)
Alicedale	South Africa	Record daily precipitation	57.2 mm (2.3 in)	35 of 100 (Notable)
Mitcham Post Office	Australia	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Munising	United States	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Fulham Park	Australia	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Kalol	India	Record daily precipitation	88.1 mm (3.5 in)	33 of 100 (Routine)
Itahar	India	Record daily precipitation	97.0 mm (3.8 in)	33 of 100 (Routine)
Hanover	United States	Record daily precipitation	31.0 mm (1.2 in)	33 of 100 (Routine)
Cullendale	South Africa	Record daily precipitation	37.1 mm (1.5 in)	32 of 100 (Routine)
Kubusie (Bos)	South Africa	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
Yates Hydro Plt	United States	Record daily precipitation	46.7 mm (1.8 in)	32 of 100 (Routine)
Bay City	United States	Record daily precipitation	55.9 mm (2.2 in)	32 of 100 (Routine)
Mount Barker	Australia	Record daily precipitation	34.5 mm (1.4 in)	31 of 100 (Routine)
Fir Glen	South Africa	Record daily precipitation	30.0 mm (1.2 in)	31 of 100 (Routine)
Cheboygan	United States	Record daily precipitation	38.6 mm (1.5 in)	31 of 100 (Routine)
Glencliff	United States	Record daily precipitation	39.1 mm (1.5 in)	31 of 100 (Routine)
Belleville	Canada	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Angaston	Australia	Record daily precipitation	25.1 mm (1.0 in)	29 of 100 (Routine)
Whitehead	Canada	Record daily precipitation	39.9 mm (1.6 in)	29 of 100 (Routine)
Malegaon	India	Record daily precipitation	71.9 mm (2.8 in)	29 of 100 (Routine)
Tarpon Spgs Sewage Plt	United States	Record daily precipitation	53.3 mm (2.1 in)	29 of 100 (Routine)
Devonport Harbour Master	Australia	Record daily precipitation	33.5 mm (1.3 in)	27 of 100 (Routine)
Latrobe (Coal Road)	Australia	Record daily precipitation	40.1 mm (1.6 in)	27 of 100 (Routine)
Sheikhpura	India	Record daily precipitation	54.4 mm (2.1 in)	27 of 100 (Routine)
Halol	India	Record daily precipitation	73.9 mm (2.9 in)	27 of 100 (Routine)
Wolfridge (Bos)	South Africa	Record daily precipitation	26.2 mm (1.0 in)	27 of 100 (Routine)
Belair (State Flora Nursery)	Australia	Record daily precipitation	26.9 mm (1.1 in)	26 of 100 (Routine)
Northdown (Hamley)	Australia	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Grenfell	Canada	Record daily precipitation	38.1 mm (1.5 in)	26 of 100 (Routine)
Freeport	United States	Record daily precipitation	49.5 mm (1.9 in)	26 of 100 (Routine)
Northfield	United States	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Oconto 4 W	United States	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Echunga Golf Course	Australia	Record daily precipitation	33.3 mm (1.3 in)	25 of 100 (Routine)
Ulverstone (Knights Road)	Australia	Record daily precipitation	30.0 mm (1.2 in)	25 of 100 (Routine)
Whitewood	Canada	Record daily precipitation	39.6 mm (1.6 in)	25 of 100 (Routine)
Carnarvon Post Office	Australia	Record low maximum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Jhalod	India	Record daily precipitation	78.7 mm (3.1 in)	24 of 100 (Routine)
Macon	United States	Record daily precipitation	25.9 mm (1.0 in)	24 of 100 (Routine)
Bridgewater	Australia	Record daily precipitation	43.2 mm (1.7 in)	23 of 100 (Routine)
Rajathgarh	India	Record daily precipitation	73.7 mm (2.9 in)	23 of 100 (Routine)
Arad	Romania	Record low minimum temperature	9.1 C (48.4 F)	23 of 100 (Routine)
Idaho Springs	United States	Record high maximum temperature	31.1 C (88.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

447 records

Records set or tied on 20 June 1943 by type: Highest daily maximum 37, Lowest daily maximum 13, Highest daily minimum 103, Lowest daily minimum 35, Heaviest daily rainfall 259.

Records on 20 June 1943 by type
Record type	Records
Highest daily maximum	37
Lowest daily maximum	13
Highest daily minimum	103
Lowest daily minimum	35
Heaviest daily rainfall	259
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 June 1943 by timescale: all-time 2, monthly 4, daily 441.

How Much Records Were Beaten By

356 broken records

Margins by which the 356 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 122.5. Ties are not counted.

Top 20 by Significance

20 June 1943

Top 20 records on 20 June 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 1943	Cape Willoughby, AU	daily rain	35.6 mm (1.4 in)	21.4 mm (0.8 in)	53 years	61 of 100 (Major)
20 June 1943	Aracaju, BR	all-time rain	164.6 mm (6.5 in)	49.3 mm (1.9 in)	2 years	56 of 100 (Notable)
20 June 1943	Achinsk, RU	daily rain	35.7 mm (1.4 in)	25.3 mm (1.0 in)	40 years	56 of 100 (Notable)
20 June 1943	Woodside, AU	daily rain	54.1 mm (2.1 in)	30.5 mm (1.2 in)	50 years	50 of 100 (Notable)
20 June 1943	Kanmantoo, AU	daily rain	29.2 mm (1.1 in)	16.0 mm (0.6 in)	54 years	49 of 100 (Notable)
20 June 1943	Aurora Water, US	daily rain	54.1 mm (2.1 in)	38.6 mm (1.5 in)	49 years	47 of 100 (Notable)
20 June 1943	Riverton, AU	daily rain	26.9 mm (1.1 in)	15.7 mm (0.6 in)	52 years	46 of 100 (Notable)
20 June 1943	Laura, AU	daily rain	27.4 mm (1.1 in)	18.8 mm (0.7 in)	25 years	45 of 100 (Notable)
20 June 1943	Sturgeon Bay Exp Farm, US	daily rain	51.8 mm (2.0 in)	31.5 mm (1.2 in)	36 years	44 of 100 (Notable)
20 June 1943	Modasa, IN	daily rain	81.3 mm (3.2 in)	65.6 mm (2.6 in)	18 years	43 of 100 (Notable)
20 June 1943	Grahamstown, ZA	daily rain	48.5 mm (1.9 in)	30.7 mm (1.2 in)	24 years	41 of 100 (Notable)
20 June 1943	Mahim, IN	daily rain	210.1 mm (8.3 in)	122.5 mm (4.8 in)	5 years	40 of 100 (Notable)
20 June 1943	St Ignace, US	daily rain	53.3 mm (2.1 in)	35.5 mm (1.4 in)	20 years	40 of 100 (Notable)
20 June 1943	Chelsea, US	daily rain	40.6 mm (1.6 in)	20.5 mm (0.8 in)	45 years	40 of 100 (Notable)
20 June 1943	Maitland, AU	daily rain	26.2 mm (1.0 in)	11.7 mm (0.5 in)	50 years	39 of 100 (Notable)
20 June 1943	Marrabel, AU	daily rain	26.7 mm (1.1 in)	14.5 mm (0.6 in)	25 years	39 of 100 (Notable)
20 June 1943	Adelaide (Glen Osmond), AU	daily rain	28.2 mm (1.1 in)	13.7 mm (0.5 in)	54 years	38 of 100 (Notable)
20 June 1943	Paw Paw 2S, US	daily rain	44.5 mm (1.8 in)	37.4 mm (1.5 in)	24 years	38 of 100 (Notable)
20 June 1943	Fort Fordyce (Bos), ZA	daily rain	35.1 mm (1.4 in)	22.4 mm (0.9 in)	30 years	36 of 100 (Notable)
20 June 1943	Alicedale, ZA	monthly rain	57.2 mm (2.3 in)	11.5 mm (0.5 in)	21 years	35 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

1800 to 1943

Records set or tied on this calendar date in each year from 1800 to 1943. 1943 had 447 records.

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

Records on 06-20 in each year
Year	Records
1800	1
1803	1
1813	1
1821	2
1838	1
1839	1
1841	1
1844	1
1846	2
1847	1
1850	1
1855	2
1857	1
1861	1
1865	2
1867	1
1869	2
1872	1
1873	1
1877	2
1879	1
1884	1
1886	2
1887	2
1891	2
1892	2
1893	2
1895	4
1896	3
1897	6
1898	3
1899	6
1900	4
1901	5
1902	7
1903	22
1904	13
1905	14
1906	18
1907	10
1908	30
1909	9
1910	27
1911	27
1912	17
1913	30
1914	53
1915	75
1916	83
1917	96
1918	54
1919	67
1920	40
1921	42
1922	61
1923	263
1924	204
1925	483
1926	228
1927	193
1928	199
1929	137
1930	143
1931	536
1932	182
1933	676
1934	301
1935	337
1936	529
1937	412
1938	326
1939	270
1940	469
1941	200
1942	757
1943	447
1944	315
1945	769
1946	849
1947	387
1948	554
1949	314
1950	328
1951	289
1952	318
1953	998
1954	414
1955	291
1956	484
1957	598
1958	603
1959	504
1960	451
1961	836
1962	173
1963	379
1964	729
1965	463
1966	441
1967	687
1968	559
1969	982
1970	482
1971	395
1972	660
1973	553
1974	743
1975	984
1976	899
1977	453
1978	480
1979	727
1980	922
1981	987
1982	801
1983	724
1984	686
1985	811
1986	732
1987	960
1988	1,222
1989	918
1990	899
1991	1,085
1992	1,049
1993	964
1994	925
1995	1,260
1996	1,123
1997	738
1998	1,627
1999	906
2000	1,328
2001	771
2002	955
2003	843
2004	1,071
2005	1,055
2006	820
2007	1,208
2008	669
2009	1,060
2010	865
2011	1,359
2012	1,045
2013	879
2014	381
2015	637
2016	1,352
2017	1,086
2018	635
2019	693
2020	590
2021	1,161
2022	972
2023	1,265
2024	783
2025	944
2026	757

Download the Data

Data for records on 1943-06-20: 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	325
20 to 40	26
40 to 60	2
60 to 80	2
80 to 100	0
100 to 120	0
120 to 140	1