Weather Records on 23 June 1940

365 weather records were set or tied worldwide on 23 June 1940. Highest significance: Delaware 3 WSW, US.

Key Facts for 23 June 1940

On 23 June 1940, 365 weather records were set or tied at long-record stations worldwide.
47 were record highs and 112 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 3 monthly and 361 daily.
Delaware 3 WSW set a monthly record daily precipitation of 129.8 mm (5.1 in) on 23 June 1940.
Across 161 earlier years (1805 to 2026) the same calendar date averaged 431 records.

Record Map

365 stations

365 station records on 23 June 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 June 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Delaware 3 WSW	United States	Record daily precipitation	129.8 mm (5.1 in)	54 of 100 (Notable)
Ashland #2	United States	Record daily precipitation	73.7 mm (2.9 in)	50 of 100 (Notable)
Gulbarga	India	Record daily precipitation	79.0 mm (3.1 in)	48 of 100 (Notable)
Ratnagiri	India	Record daily precipitation	237.5 mm (9.4 in)	48 of 100 (Notable)
Columbia Wb City	United States	Record daily precipitation	75.4 mm (3.0 in)	48 of 100 (Notable)
Chittur	India	Record daily precipitation	101.6 mm (4.0 in)	46 of 100 (Notable)
Simcoe	Canada	Record daily precipitation	46.2 mm (1.8 in)	44 of 100 (Notable)
Mt Carroll	United States	Record daily precipitation	80.3 mm (3.2 in)	44 of 100 (Notable)
Elkader 6 SSW	United States	Record daily precipitation	74.2 mm (2.9 in)	43 of 100 (Notable)
Red Cloud	United States	Record daily precipitation	62.7 mm (2.5 in)	42 of 100 (Notable)
Sairang	India	Record daily precipitation	89.9 mm (3.5 in)	40 of 100 (Notable)
Rajakkamangalam	India	Record daily precipitation	95.3 mm (3.8 in)	40 of 100 (Notable)
Newaygo Hardy Dam	United States	Record daily precipitation	63.2 mm (2.5 in)	40 of 100 (Notable)
Ridgetown	Canada	Record daily precipitation	31.8 mm (1.3 in)	39 of 100 (Notable)
Brantford	Canada	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Maquoketa	United States	Record daily precipitation	42.7 mm (1.7 in)	38 of 100 (Notable)
Canton	United States	Record daily precipitation	75.4 mm (3.0 in)	38 of 100 (Notable)
Chatham 2	Canada	Record daily precipitation	37.1 mm (1.5 in)	36 of 100 (Notable)
Independence	United States	Record daily precipitation	122.7 mm (4.8 in)	36 of 100 (Notable)
Hilland 2 NW	United States	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)
Arrino	Australia	Record daily precipitation	57.2 mm (2.3 in)	35 of 100 (Notable)
Stratford	Canada	Record daily precipitation	42.7 mm (1.7 in)	35 of 100 (Notable)
Alton	United States	Record daily precipitation	48.5 mm (1.9 in)	35 of 100 (Notable)
Lucan	Canada	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Woodstock	Canada	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Oregon Wtr Wks	United States	Record daily precipitation	51.1 mm (2.0 in)	34 of 100 (Routine)
Clinton 2	United States	Record daily precipitation	63.5 mm (2.5 in)	34 of 100 (Routine)
Spearfish	United States	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Mt Clemens Ang Base	United States	Record daily precipitation	43.7 mm (1.7 in)	34 of 100 (Routine)
Marion	United States	Record daily precipitation	66.5 mm (2.6 in)	33 of 100 (Routine)
Lancaster 4 WSW	United States	Record daily precipitation	59.2 mm (2.3 in)	33 of 100 (Routine)
Alma	United States	Record daily precipitation	41.1 mm (1.6 in)	32 of 100 (Routine)
Hastings	United States	Record daily precipitation	42.9 mm (1.7 in)	32 of 100 (Routine)
Bisbee	United States	Record low maximum temperature	22.8 C (73.0 F)	31 of 100 (Routine)
Clifton	United States	Record low maximum temperature	27.8 C (82.0 F)	31 of 100 (Routine)
Freeport	United States	Record daily precipitation	51.3 mm (2.0 in)	31 of 100 (Routine)
Waterloo	United States	Record daily precipitation	42.7 mm (1.7 in)	31 of 100 (Routine)
Pastura 6 SSE	United States	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
La Delle 7 NE	United States	Record daily precipitation	56.4 mm (2.2 in)	31 of 100 (Routine)
Simcoe	Canada	Record low maximum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Douglas Smelter	United States	Record low maximum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Grundy Ctr	United States	Record daily precipitation	71.1 mm (2.8 in)	30 of 100 (Routine)
Marshalltown	United States	Record daily precipitation	54.6 mm (2.1 in)	30 of 100 (Routine)
Olin	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Big Rapids Wtp	United States	Record daily precipitation	30.7 mm (1.2 in)	30 of 100 (Routine)
Muskegon Co AP	United States	Record daily precipitation	52.8 mm (2.1 in)	30 of 100 (Routine)
Bederkesa	Germany	Record daily precipitation	27.2 mm (1.1 in)	29 of 100 (Routine)
Tipton	United States	Record daily precipitation	50.5 mm (2.0 in)	29 of 100 (Routine)
Milbank 4 NW	United States	Record daily precipitation	44.5 mm (1.8 in)	29 of 100 (Routine)
Brodhead Wwtp	United States	Record daily precipitation	56.4 mm (2.2 in)	29 of 100 (Routine)
Fond du Lac Wwtp	United States	Record daily precipitation	69.1 mm (2.7 in)	29 of 100 (Routine)
Rpf 126 Mile	Australia	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Goderich	Canada	Record daily precipitation	28.7 mm (1.1 in)	28 of 100 (Routine)
Colachel Salt Fa	India	Record daily precipitation	82.3 mm (3.2 in)	28 of 100 (Routine)
Oracle	United States	Record low maximum temperature	26.1 C (79.0 F)	28 of 100 (Routine)
Spencer 1 N	United States	Record daily precipitation	43.2 mm (1.7 in)	28 of 100 (Routine)
Stevens Pt	United States	Record daily precipitation	47.0 mm (1.9 in)	28 of 100 (Routine)
Mont-Aigoual	France	Record daily precipitation	66.0 mm (2.6 in)	27 of 100 (Routine)
Pollachi	India	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
Belmond	United States	Record daily precipitation	42.4 mm (1.7 in)	26 of 100 (Routine)

Counts by Type and Timescale

365 records

Records set or tied on 23 June 1940 by type: Highest daily maximum 22, Lowest daily maximum 48, Highest daily minimum 25, Lowest daily minimum 64, Heaviest daily rainfall 206.

Records on 23 June 1940 by type
Record type	Records
Highest daily maximum	22
Lowest daily maximum	48
Highest daily minimum	25
Lowest daily minimum	64
Heaviest daily rainfall	206
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 23 June 1940 by timescale: all-time 1, monthly 3, daily 361.

How Much Records Were Beaten By

305 broken records

Margins by which the 305 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.6. Ties are not counted.

Top 20 by Significance

23 June 1940

Top 20 records on 23 June 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 June 1940	Delaware 3 WSW, US	monthly rain	129.8 mm (5.1 in)	81.3 mm (3.2 in)	3 years	54 of 100 (Notable)
23 June 1940	Ashland #2, US	daily rain	73.7 mm (2.9 in)	45.8 mm (1.8 in)	45 years	50 of 100 (Notable)
23 June 1940	Gulbarga, IN	daily rain	79.0 mm (3.1 in)	67.3 mm (2.6 in)	15 years	48 of 100 (Notable)
23 June 1940	Ratnagiri, IN	daily rain	237.5 mm (9.4 in)	150.6 mm (5.9 in)	18 years	48 of 100 (Notable)
23 June 1940	Columbia Wb City, US	daily rain	75.4 mm (3.0 in)	41.1 mm (1.6 in)	49 years	48 of 100 (Notable)
23 June 1940	Chittur, IN	daily rain	101.6 mm (4.0 in)	63.5 mm (2.5 in)	19 years	46 of 100 (Notable)
23 June 1940	Simcoe, CA	daily rain	46.2 mm (1.8 in)	33.0 mm (1.3 in)	12 years	44 of 100 (Notable)
23 June 1940	Mt Carroll, US	daily rain	80.3 mm (3.2 in)	36.9 mm (1.5 in)	42 years	44 of 100 (Notable)
23 June 1940	Elkader 6 SSW, US	daily rain	74.2 mm (2.9 in)	39.7 mm (1.6 in)	23 years	43 of 100 (Notable)
23 June 1940	Red Cloud, US	daily rain	62.7 mm (2.5 in)	40.3 mm (1.6 in)	32 years	42 of 100 (Notable)
23 June 1940	Sairang, IN	daily rain	89.9 mm (3.5 in)	56.4 mm (2.2 in)	30 years	40 of 100 (Notable)
23 June 1940	Rajakkamangalam, IN	daily rain	95.3 mm (3.8 in)	44.0 mm (1.7 in)	20 years	40 of 100 (Notable)
23 June 1940	Newaygo Hardy Dam, US	daily rain	63.2 mm (2.5 in)	30.2 mm (1.2 in)	32 years	40 of 100 (Notable)
23 June 1940	Ridgetown, CA	daily rain	31.8 mm (1.3 in)	16.3 mm (0.6 in)	51 years	39 of 100 (Notable)
23 June 1940	Brantford, CA	daily rain	28.4 mm (1.1 in)	17.7 mm (0.7 in)	51 years	38 of 100 (Notable)
23 June 1940	Maquoketa, US	daily rain	42.7 mm (1.7 in)	26.2 mm (1.0 in)	42 years	38 of 100 (Notable)
23 June 1940	Canton, US	daily rain	75.4 mm (3.0 in)	42.6 mm (1.7 in)	24 years	38 of 100 (Notable)
23 June 1940	Chatham 2, CA	daily rain	37.1 mm (1.5 in)	18.3 mm (0.7 in)	33 years	36 of 100 (Notable)
23 June 1940	Independence, US	all-time rain	122.7 mm (4.8 in)	5.4 mm (0.21 in)	27 years	36 of 100 (Notable)
23 June 1940	Hilland 2 NW, US	daily rain	41.9 mm (1.6 in)	29.2 mm (1.1 in)	30 years	36 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

1805 to 1940

Records set or tied on this calendar date in each year from 1805 to 1940. 1940 had 365 records.

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

Records on 06-23 in each year
Year	Records
1805	1
1806	1
1821	2
1822	1
1824	1
1834	1
1843	1
1849	2
1850	1
1853	2
1858	1
1861	2
1862	1
1868	1
1869	3
1874	3
1876	1
1877	1
1879	3
1880	1
1881	1
1884	1
1885	5
1886	4
1887	3
1888	4
1889	4
1890	1
1892	9
1893	2
1894	4
1895	4
1896	2
1898	2
1899	4
1900	2
1901	5
1902	10
1903	22
1904	10
1905	16
1906	14
1907	20
1908	20
1909	29
1910	30
1911	23
1912	38
1913	28
1914	31
1915	127
1916	14
1917	22
1918	92
1919	42
1920	76
1921	72
1922	25
1923	143
1924	86
1925	162
1926	336
1927	104
1928	155
1929	182
1930	408
1931	331
1932	208
1933	605
1934	367
1935	231
1936	627
1937	479
1938	266
1939	218
1940	365
1941	295
1942	475
1943	260
1944	427
1945	394
1946	348
1947	648
1948	567
1949	424
1950	812
1951	443
1952	538
1953	657
1954	486
1955	369
1956	533
1957	514
1958	630
1959	427
1960	452
1961	453
1962	285
1963	546
1964	434
1965	391
1966	426
1967	708
1968	356
1969	969
1970	484
1971	270
1972	1,522
1973	520
1974	625
1975	681
1976	668
1977	480
1978	509
1979	550
1980	633
1981	846
1982	602
1983	968
1984	654
1985	552
1986	628
1987	946
1988	1,751
1989	1,039
1990	639
1991	904
1992	1,675
1993	922
1994	956
1995	891
1996	1,342
1997	777
1998	1,589
1999	904
2000	636
2001	808
2002	1,079
2003	1,335
2004	970
2005	1,070
2006	810
2007	802
2008	533
2009	1,077
2010	966
2011	989
2012	793
2013	525
2014	382
2015	642
2016	1,203
2017	1,012
2018	493
2019	1,174
2020	716
2021	950
2022	661
2023	942
2024	959
2025	1,414
2026	894

Download the Data

Data for records on 1940-06-23: 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	254
20 to 40	41
40 to 60	6
60 to 80	2
80 to 100	1
100 to 120	0
120 to 140	0
140 to 160	1