Weather Records on 20 October 1940

757 weather records were set or tied worldwide on 20 October 1940. Highest significance: Mandvi, IN.

Key Facts for 20 October 1940

On 20 October 1940, 757 weather records were set or tied at long-record stations worldwide.
346 were record highs and 249 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 737 daily.
Mandvi set a daily record precipitation of 108.0 mm (4.3 in) on 20 October 1940.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 455 records.

Record Map

757 stations

757 station records on 20 October 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mandvi	India	Record daily precipitation	108.0 mm (4.3 in)	51 of 100 (Notable)
Vineland	United States	Record daily snowfall	5.1 cm (2.0 in)	48 of 100 (Notable)
Bulsar Obsy Sr	India	Record daily precipitation	101.6 mm (4.0 in)	46 of 100 (Notable)
Tortosa - Observatorio del Ebr	Spain	Record daily precipitation	56.4 mm (2.2 in)	45 of 100 (Notable)
Sotchi	Russia	Record daily precipitation	76.4 mm (3.0 in)	44 of 100 (Notable)
Mokhada	India	Record daily precipitation	111.8 mm (4.4 in)	43 of 100 (Notable)
Sydney	Canada	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Chikhli	India	Record daily precipitation	77.0 mm (3.0 in)	42 of 100 (Notable)
Whitehead	Canada	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Monierkhal	India	Record daily precipitation	133.6 mm (5.3 in)	41 of 100 (Notable)
Fogo	Canada	Record daily precipitation	27.9 mm (1.1 in)	39 of 100 (Notable)
Igatpuri	India	Record daily precipitation	120.7 mm (4.8 in)	39 of 100 (Notable)
Moorestown 4 E	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Devrukh	India	Record daily precipitation	100.3 mm (3.9 in)	38 of 100 (Notable)
Broach	India	Record daily precipitation	50.8 mm (2.0 in)	37 of 100 (Notable)
Vada	India	Record daily precipitation	113.8 mm (4.5 in)	36 of 100 (Notable)
St John's	Canada	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Dale Enterprise	United States	Record daily snowfall	7.6 cm (3.0 in)	33 of 100 (Routine)
Mangaon	India	Record daily precipitation	70.1 mm (2.8 in)	31 of 100 (Routine)
Philadelphia City	United States	Record low minimum temperature	-0.6 C (30.9 F)	31 of 100 (Routine)
Puri	India	Record daily precipitation	84.3 mm (3.3 in)	30 of 100 (Routine)
Trenton 2	United States	Record low maximum temperature	8.3 C (46.9 F)	30 of 100 (Routine)
Ny City Cntrl Park	United States	Record low minimum temperature	0.6 C (33.1 F)	30 of 100 (Routine)
Quebec	Canada	Record daily snowfall	6.4 cm (2.5 in)	29 of 100 (Routine)
Stockton 2	United States	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Bridgeton 1 NE	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Santa Fe	United States	Record high minimum temperature	9.4 C (48.9 F)	29 of 100 (Routine)
World Trade Ctr	United States	Record low minimum temperature	1.1 C (34.0 F)	29 of 100 (Routine)
Chapel Hill 2 W	United States	Record low maximum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Willapa Harbor	United States	Record daily precipitation	47.5 mm (1.9 in)	29 of 100 (Routine)
Pardi	India	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
D.Baria	India	Record daily precipitation	47.8 mm (1.9 in)	28 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record low maximum temperature	6.1 C (43.0 F)	28 of 100 (Routine)
Millsboro	United States	Record low maximum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
Easton	United States	Record low maximum temperature	6.1 C (43.0 F)	27 of 100 (Routine)
Heppner	United States	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Lexington	United States	Record low maximum temperature	6.7 C (44.1 F)	27 of 100 (Routine)
Sedro-Woolley	United States	Record high minimum temperature	15.6 C (60.1 F)	27 of 100 (Routine)
Sacramento 5 ESE	United States	Record high minimum temperature	16.7 C (62.1 F)	27 of 100 (Routine)
Windsor Kings College	Canada	Record low maximum temperature	3.3 C (37.9 F)	26 of 100 (Routine)
Indian Mills 2 W	United States	Record daily snowfall	5.8 cm (2.3 in)	26 of 100 (Routine)
Sakti	India	Record daily precipitation	42.7 mm (1.7 in)	25 of 100 (Routine)
Taganrog (Lighthouse)	Russia	Record daily precipitation	26.5 mm (1.0 in)	25 of 100 (Routine)
Dover	United States	Record low maximum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Annapolis US Naval Aca	United States	Record low maximum temperature	6.1 C (43.0 F)	25 of 100 (Routine)
Edenton	United States	Record low maximum temperature	12.2 C (54.0 F)	25 of 100 (Routine)
Weldon	United States	Record low maximum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Grants Pass	United States	Record high minimum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Lawrenceville 2 S	United States	Record low minimum temperature	-10.6 C (12.9 F)	25 of 100 (Routine)
New Canton	United States	Record low maximum temperature	6.7 C (44.1 F)	25 of 100 (Routine)
Launceston (Pumping Station)	Australia	Record high maximum temperature	27.2 C (81.0 F)	24 of 100 (Routine)
Simcoe	Canada	Record low minimum temperature	-4.4 C (24.1 F)	24 of 100 (Routine)
Mandangad	India	Record daily precipitation	61.7 mm (2.4 in)	24 of 100 (Routine)
Tamluk	India	Record daily precipitation	45.7 mm (1.8 in)	24 of 100 (Routine)
Lead	United States	Record high minimum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Papaikou 144.1	United States	Record daily precipitation	68.6 mm (2.7 in)	24 of 100 (Routine)
Mahim	India	Record daily precipitation	27.2 mm (1.1 in)	23 of 100 (Routine)
Crescent City 3 NNW	United States	Record daily precipitation	74.4 mm (2.9 in)	23 of 100 (Routine)
Bridgeville 1 NW	United States	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Porthill	United States	Record high maximum temperature	22.8 C (73.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

757 records

Records set or tied on 20 October 1940 by type: Highest daily maximum 216, Lowest daily maximum 137, Highest daily minimum 130, Lowest daily minimum 112, Heaviest daily rainfall 128, Heaviest daily snowfall 33, Deepest snow cover 1.

Records on 20 October 1940 by type
Record type	Records
Highest daily maximum	216
Lowest daily maximum	137
Highest daily minimum	130
Lowest daily minimum	112
Heaviest daily rainfall	128
Heaviest daily snowfall	33
Deepest snow cover	1

Records on 20 October 1940 by timescale: all-time 0, monthly 20, daily 737.

How Much Records Were Beaten By

617 broken records

Margins by which the 617 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.7. Ties are not counted.

Top 20 by Significance

20 October 1940

Top 20 records on 20 October 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1940	Mandvi, IN	daily rain	108.0 mm (4.3 in)	106.7 mm (4.2 in)	24 years	51 of 100 (Notable)
20 October 1940	Vineland, US	monthly snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	73 years	48 of 100 (Notable)
20 October 1940	Bulsar Obsy Sr, IN	daily rain	101.6 mm (4.0 in)	82.5 mm (3.2 in)	7 years	46 of 100 (Notable)
20 October 1940	Tortosa - Observatorio del Ebr, ES	daily rain	56.4 mm (2.2 in)	50.9 mm (2.0 in)	7 years	45 of 100 (Notable)
20 October 1940	Sotchi, RU	daily rain	76.4 mm (3.0 in)	44.8 mm (1.8 in)	63 years	44 of 100 (Notable)
20 October 1940	Mokhada, IN	daily rain	111.8 mm (4.4 in)	71.2 mm (2.8 in)	35 years	43 of 100 (Notable)
20 October 1940	Sydney, CA	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	69 years	42 of 100 (Notable)
20 October 1940	Chikhli, IN	daily rain	77.0 mm (3.0 in)	77.0 mm (3.0 in)	39 years	42 of 100 (Notable)
20 October 1940	Whitehead, CA	monthly snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	56 years	41 of 100 (Notable)
20 October 1940	Monierkhal, IN	daily rain	133.6 mm (5.3 in)	58.7 mm (2.3 in)	35 years	41 of 100 (Notable)
20 October 1940	Fogo, CA	daily rain	27.9 mm (1.1 in)	15.2 mm (0.6 in)	61 years	39 of 100 (Notable)
20 October 1940	Igatpuri, IN	daily rain	120.7 mm (4.8 in)	89.2 mm (3.5 in)	7 years	39 of 100 (Notable)
20 October 1940	Moorestown 4 E, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	74 years	39 of 100 (Notable)
20 October 1940	Devrukh, IN	daily rain	100.3 mm (3.9 in)	48.2 mm (1.9 in)	38 years	38 of 100 (Notable)
20 October 1940	Broach, IN	daily rain	50.8 mm (2.0 in)	50.8 mm (2.0 in)	39 years	37 of 100 (Notable)
20 October 1940	Vada, IN	daily rain	113.8 mm (4.5 in)	103.4 mm (4.1 in)	8 years	36 of 100 (Notable)
20 October 1940	St John's, CA	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	65 years	35 of 100 (Notable)
20 October 1940	Dale Enterprise, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	46 years	33 of 100 (Routine)
20 October 1940	Mangaon, IN	daily rain	70.1 mm (2.8 in)	54.9 mm (2.2 in)	12 years	31 of 100 (Routine)
20 October 1940	Philadelphia City, US	daily low min	-0.6 C (30.9 F)	2.8 C (5.0 F)	64 years	31 of 100 (Routine)

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

1806 to 1940

Records set or tied on this calendar date in each year from 1806 to 1940. 1940 had 757 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1940-10-20: 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	568
20 to 40	24
40 to 60	17
60 to 80	4
80 to 100	2
100 to 120	2