Weather Records on 17 June 1940

454 weather records were set or tied worldwide on 17 June 1940. Highest significance: Jennings, US.

Key Facts for 17 June 1940

On 17 June 1940, 454 weather records were set or tied at long-record stations worldwide.
255 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 41 monthly and 413 daily.
Jennings set a monthly record daily precipitation of 192.3 mm (7.6 in) on 17 June 1940.
Across 162 earlier years (1807 to 2026) the same calendar date averaged 430 records.

Record Map

454 stations

454 station records on 17 June 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 June 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jennings	United States	Record daily precipitation	192.3 mm (7.6 in)	64 of 100 (Major)
Premier Mine-Cullinan	South Africa	Record daily precipitation	53.8 mm (2.1 in)	60 of 100 (Major)
Ogies (Pol)	South Africa	Record daily precipitation	76.2 mm (3.0 in)	57 of 100 (Notable)
Schoonoord	South Africa	Record daily precipitation	55.9 mm (2.2 in)	57 of 100 (Notable)
Karina	South Africa	Record daily precipitation	63.5 mm (2.5 in)	56 of 100 (Notable)
Cumberland	South Africa	Record daily precipitation	39.1 mm (1.5 in)	56 of 100 (Notable)
Bergplaats	South Africa	Record daily precipitation	26.4 mm (1.0 in)	53 of 100 (Notable)
Vlaklaagte	South Africa	Record daily precipitation	51.1 mm (2.0 in)	52 of 100 (Notable)
Rooiberg	South Africa	Record daily precipitation	51.8 mm (2.0 in)	51 of 100 (Notable)
Pretoria-Fountains	South Africa	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Donkerhoek (Skl)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	46 of 100 (Notable)
Wien	Austria	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Planknek	South Africa	Record daily precipitation	39.4 mm (1.6 in)	44 of 100 (Notable)
Grand Coteau	United States	Record daily precipitation	116.1 mm (4.6 in)	44 of 100 (Notable)
Bronkhorstspruit (Mun)	South Africa	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Alkmaar	South Africa	Record daily precipitation	26.2 mm (1.0 in)	39 of 100 (Notable)
Manamathurai	India	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Sibasa	South Africa	Record daily precipitation	26.7 mm (1.1 in)	37 of 100 (Notable)
Illawarra	South Africa	Record daily precipitation	30.5 mm (1.2 in)	35 of 100 (Notable)
Alexandria	United States	Record daily precipitation	112.8 mm (4.4 in)	35 of 100 (Notable)
Vattaram	India	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Saundatti	India	Record daily precipitation	28.4 mm (1.1 in)	33 of 100 (Routine)
Wonderfontein (Skl)	South Africa	Record daily precipitation	37.6 mm (1.5 in)	33 of 100 (Routine)
Guntur	India	Record daily precipitation	107.7 mm (4.2 in)	32 of 100 (Routine)
Arad	Romania	Record daily precipitation	30.7 mm (1.2 in)	32 of 100 (Routine)
De Emigratie	South Africa	Record daily precipitation	38.9 mm (1.5 in)	32 of 100 (Routine)
Villupuram	India	Record daily precipitation	40.6 mm (1.6 in)	31 of 100 (Routine)
Gadsden	United States	Record daily precipitation	37.6 mm (1.5 in)	31 of 100 (Routine)
Donaldsonville 4 SW	United States	Record low maximum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Chainpur	India	Record daily precipitation	73.9 mm (2.9 in)	30 of 100 (Routine)
Shirala	India	Record daily precipitation	38.4 mm (1.5 in)	30 of 100 (Routine)
Resaca	United States	Record daily precipitation	45.0 mm (1.8 in)	30 of 100 (Routine)
Charleston	United States	Record daily precipitation	66.0 mm (2.6 in)	30 of 100 (Routine)
Rhinelander	United States	Record daily precipitation	39.4 mm (1.6 in)	30 of 100 (Routine)
Kriel (Pol)	South Africa	Record daily precipitation	37.6 mm (1.5 in)	29 of 100 (Routine)
Uniontown	United States	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Schriever	United States	Record low maximum temperature	28.9 C (84.0 F)	28 of 100 (Routine)
Port Dover	Canada	Record high minimum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Shirol	India	Record daily precipitation	34.0 mm (1.3 in)	25 of 100 (Routine)
Verwoedburg-Mu"Lytteltn"	South Africa	Record daily precipitation	31.8 mm (1.3 in)	25 of 100 (Routine)
Pine Bluff	United States	Record low maximum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Szombathely	Hungary	Record daily precipitation	31.8 mm (1.3 in)	24 of 100 (Routine)
Ramnagaram	India	Record daily precipitation	31.8 mm (1.3 in)	24 of 100 (Routine)
Clinton Forestry HQ	United States	Record daily precipitation	52.1 mm (2.1 in)	24 of 100 (Routine)
Government Creek	United States	Record high maximum temperature	37.8 C (100.0 F)	24 of 100 (Routine)
Big St Germain Dam	United States	Record daily precipitation	30.5 mm (1.2 in)	24 of 100 (Routine)
Alexandria	United States	Record low maximum temperature	26.1 C (79.0 F)	23 of 100 (Routine)
Minden	United States	Record low maximum temperature	24.4 C (75.9 F)	23 of 100 (Routine)
San Jacinto	United States	Record high maximum temperature	37.8 C (100.0 F)	23 of 100 (Routine)
Kingston	United States	Record daily precipitation	35.6 mm (1.4 in)	23 of 100 (Routine)
Plum Island	United States	Record daily precipitation	76.2 mm (3.0 in)	23 of 100 (Routine)
Nagamangala	India	Record daily precipitation	67.6 mm (2.7 in)	22 of 100 (Routine)
Jhb-Braamfontein (Cem)	South Africa	Record daily precipitation	26.4 mm (1.0 in)	22 of 100 (Routine)
Conway	United States	Record low maximum temperature	26.1 C (79.0 F)	22 of 100 (Routine)
Stuttgart	United States	Record low maximum temperature	25.0 C (77.0 F)	22 of 100 (Routine)
Tallapoosa 2 N	United States	Record daily precipitation	29.2 mm (1.1 in)	22 of 100 (Routine)
Hailey 3 NNW	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
Payette	United States	Record high minimum temperature	21.1 C (70.0 F)	22 of 100 (Routine)
Austin #2	United States	Record high maximum temperature	32.8 C (91.0 F)	22 of 100 (Routine)
Lakeview 2 NNW	United States	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)

Counts by Type and Timescale

454 records

Records set or tied on 17 June 1940 by type: Highest daily maximum 162, Lowest daily maximum 38, Highest daily minimum 93, Lowest daily minimum 10, Heaviest daily rainfall 151.

Records on 17 June 1940 by type
Record type	Records
Highest daily maximum	162
Lowest daily maximum	38
Highest daily minimum	93
Lowest daily minimum	10
Heaviest daily rainfall	151
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 June 1940 by timescale: all-time 0, monthly 41, daily 413.

How Much Records Were Beaten By

343 broken records

Margins by which the 343 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 75.7. Ties are not counted.

Top 20 by Significance

17 June 1940

Top 20 records on 17 June 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 June 1940	Jennings, US	monthly rain	192.3 mm (7.6 in)	75.7 mm (3.0 in)	33 years	64 of 100 (Major)
17 June 1940	Premier Mine-Cullinan, ZA	monthly rain	53.8 mm (2.1 in)	38.3 mm (1.5 in)	30 years	60 of 100 (Major)
17 June 1940	Ogies (Pol), ZA	monthly rain	76.2 mm (3.0 in)	55.4 mm (2.2 in)	14 years	57 of 100 (Notable)
17 June 1940	Schoonoord, ZA	monthly rain	55.9 mm (2.2 in)	35.6 mm (1.4 in)	14 years	57 of 100 (Notable)
17 June 1940	Karina, ZA	monthly rain	63.5 mm (2.5 in)	38.4 mm (1.5 in)	18 years	56 of 100 (Notable)
17 June 1940	Cumberland, ZA	monthly rain	39.1 mm (1.5 in)	34.0 mm (1.3 in)	30 years	56 of 100 (Notable)
17 June 1940	Bergplaats, ZA	daily rain	26.4 mm (1.0 in)	26.4 mm (1.0 in)	35 years	53 of 100 (Notable)
17 June 1940	Vlaklaagte, ZA	daily rain	51.1 mm (2.0 in)	51.1 mm (2.0 in)	33 years	52 of 100 (Notable)
17 June 1940	Rooiberg, ZA	monthly rain	51.8 mm (2.0 in)	34.5 mm (1.4 in)	14 years	51 of 100 (Notable)
17 June 1940	Pretoria-Fountains, ZA	monthly rain	45.7 mm (1.8 in)	27.7 mm (1.1 in)	30 years	49 of 100 (Notable)
17 June 1940	Donkerhoek (Skl), ZA	monthly rain	49.5 mm (1.9 in)	24.1 mm (0.9 in)	30 years	46 of 100 (Notable)
17 June 1940	Wien, AT	daily rain	31.2 mm (1.2 in)	22.5 mm (0.9 in)	30 years	45 of 100 (Notable)
17 June 1940	Planknek, ZA	monthly rain	39.4 mm (1.6 in)	25.9 mm (1.0 in)	23 years	44 of 100 (Notable)
17 June 1940	Grand Coteau, US	daily rain	116.1 mm (4.6 in)	53.9 mm (2.1 in)	34 years	44 of 100 (Notable)
17 June 1940	Bronkhorstspruit (Mun), ZA	monthly rain	38.1 mm (1.5 in)	23.9 mm (0.9 in)	23 years	42 of 100 (Notable)
17 June 1940	Alkmaar, ZA	daily rain	26.2 mm (1.0 in)	26.2 mm (1.0 in)	34 years	39 of 100 (Notable)
17 June 1940	Manamathurai, IN	daily rain	43.2 mm (1.7 in)	43.2 mm (1.7 in)	37 years	38 of 100 (Notable)
17 June 1940	Sibasa, ZA	daily rain	26.7 mm (1.1 in)	25.4 mm (1.0 in)	32 years	37 of 100 (Notable)
17 June 1940	Illawarra, ZA	daily rain	30.5 mm (1.2 in)	29.5 mm (1.2 in)	11 years	35 of 100 (Notable)
17 June 1940	Alexandria, US	monthly rain	112.8 mm (4.4 in)	18.8 mm (0.7 in)	31 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

1807 to 1940

Records set or tied on this calendar date in each year from 1807 to 1940. 1940 had 454 records.

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

Records on 06-17 in each year
Year	Records
1807	2
1810	1
1811	1
1830	1
1837	1
1839	1
1840	1
1845	1
1846	1
1848	1
1855	1
1866	2
1867	1
1869	2
1872	1
1873	1
1874	1
1875	1
1878	1
1879	1
1882	3
1883	1
1884	1
1885	3
1886	3
1887	2
1888	2
1889	1
1890	1
1892	3
1894	1
1895	7
1896	3
1897	2
1898	1
1899	2
1900	6
1901	9
1902	4
1903	8
1904	4
1905	12
1906	22
1907	20
1908	26
1909	13
1910	9
1911	22
1912	47
1913	45
1914	101
1915	20
1916	103
1917	68
1918	36
1919	58
1920	79
1921	52
1922	59
1923	110
1924	80
1925	136
1926	193
1927	357
1928	137
1929	238
1930	354
1931	194
1932	257
1933	413
1934	310
1935	338
1936	484
1937	284
1938	245
1939	1,206
1940	454
1941	250
1942	286
1943	289
1944	623
1945	614
1946	419
1947	336
1948	452
1949	571
1950	506
1951	208
1952	752
1953	455
1954	488
1955	570
1956	375
1957	761
1958	597
1959	507
1960	511
1961	1,319
1962	323
1963	383
1964	794
1965	763
1966	464
1967	402
1968	403
1969	700
1970	435
1971	407
1972	437
1973	701
1974	932
1975	453
1976	430
1977	410
1978	589
1979	646
1980	754
1981	1,201
1982	642
1983	728
1984	644
1985	693
1986	912
1987	1,078
1988	712
1989	870
1990	932
1991	1,094
1992	795
1993	684
1994	1,186
1995	1,350
1996	750
1997	1,056
1998	1,661
1999	1,260
2000	1,460
2001	678
2002	1,148
2003	647
2004	839
2005	914
2006	724
2007	839
2008	656
2009	739
2010	1,104
2011	922
2012	792
2013	610
2014	685
2015	1,113
2016	874
2017	692
2018	1,050
2019	551
2020	914
2021	1,980
2022	1,209
2023	617
2024	839
2025	593
2026	743

Download the Data

Data for records on 1940-06-17: 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 10	268
10 to 20	41
20 to 30	21
30 to 40	7
40 to 50	2
50 to 60	3
60 to 70	0
70 to 80	1