Weather Records on 20 March 1940

486 weather records were set or tied worldwide on 20 March 1940. Highest significance: Borio, IN.

Key Facts for 20 March 1940

On 20 March 1940, 486 weather records were set or tied at long-record stations worldwide.
53 were record highs and 21 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 20 monthly and 465 daily.
Borio set a daily record precipitation of 35.8 mm (1.4 in) on 20 March 1940.
Across 166 earlier years (1808 to 2026) the same calendar date averaged 455 records.

Record Map

486 stations

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

Weather records on 20 March 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Borio	India	Record daily precipitation	35.8 mm (1.4 in)	55 of 100 (Notable)
Khalilabad	India	Record daily precipitation	63.5 mm (2.5 in)	55 of 100 (Notable)
Jahanabad	India	Record daily precipitation	34.8 mm (1.4 in)	51 of 100 (Notable)
Atlin	Canada	Record daily snowfall	17.8 cm (7.0 in)	50 of 100 (Notable)
Ranchi	India	Record daily precipitation	53.1 mm (2.1 in)	50 of 100 (Notable)
Perdeberg (Sar)	South Africa	Record daily precipitation	96.5 mm (3.8 in)	50 of 100 (Notable)
Howell Wwtp	United States	Record daily snowfall	19.1 cm (7.5 in)	50 of 100 (Notable)
Chakaibanda	India	Record daily precipitation	41.9 mm (1.6 in)	49 of 100 (Notable)
Jagersfontein	South Africa	Record daily precipitation	64.5 mm (2.5 in)	49 of 100 (Notable)
Mmabatho Arpt	South Africa	Record daily precipitation	127.0 mm (5.0 in)	49 of 100 (Notable)
Monghyr	India	Record daily precipitation	25.4 mm (1.0 in)	48 of 100 (Notable)
Paraiyahat	India	Record daily precipitation	42.2 mm (1.7 in)	48 of 100 (Notable)
Rowena (Bunna Bunna)	Australia	Record daily precipitation	71.1 mm (2.8 in)	47 of 100 (Notable)
Lucan	Canada	Record daily snowfall	20.3 cm (8.0 in)	47 of 100 (Notable)
Dhanaha	India	Record daily precipitation	38.1 mm (1.5 in)	47 of 100 (Notable)
Bagodar I	India	Record daily precipitation	38.1 mm (1.5 in)	46 of 100 (Notable)
Jamalpur	India	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Sitka Magnetic Obsy	United States	Record daily precipitation	57.2 mm (2.3 in)	46 of 100 (Notable)
Barsoe	India	Record daily precipitation	42.7 mm (1.7 in)	45 of 100 (Notable)
Godda	India	Record daily precipitation	38.9 mm (1.5 in)	45 of 100 (Notable)
Gazole	India	Record daily precipitation	38.6 mm (1.5 in)	45 of 100 (Notable)
Stratford	Canada	Record daily snowfall	15.2 cm (6.0 in)	43 of 100 (Notable)
Gidhour	India	Record daily precipitation	31.8 mm (1.3 in)	42 of 100 (Notable)
Sheikhpura	India	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)
Barharwa	India	Record daily precipitation	40.1 mm (1.6 in)	42 of 100 (Notable)
Gangarampur	India	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Colagaon	India	Record daily precipitation	34.0 mm (1.3 in)	41 of 100 (Notable)
Palkot	India	Record daily precipitation	26.2 mm (1.0 in)	41 of 100 (Notable)
Khunti	India	Record daily precipitation	36.8 mm (1.4 in)	41 of 100 (Notable)
Hiranpur	India	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Itahar	India	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
Oranjerivier (Sar)	South Africa	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
Pontiac Wwtp	United States	Record daily snowfall	17.8 cm (7.0 in)	40 of 100 (Notable)
Banka	India	Record daily precipitation	31.0 mm (1.2 in)	39 of 100 (Notable)
Purnea	India	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Raleigh Post Office	Australia	Record daily precipitation	223.5 mm (8.8 in)	38 of 100 (Notable)
Goderich	Canada	Record daily snowfall	12.7 cm (5.0 in)	38 of 100 (Notable)
Malda	India	Record daily precipitation	29.5 mm (1.2 in)	38 of 100 (Notable)
Sterkstroom (Pol)	South Africa	Record daily precipitation	46.7 mm (1.8 in)	38 of 100 (Notable)
Krielsfontein	South Africa	Record daily precipitation	64.0 mm (2.5 in)	38 of 100 (Notable)
Durban Roodepoort Deep Gm	South Africa	Record daily precipitation	68.8 mm (2.7 in)	38 of 100 (Notable)
Rajmahal	India	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Queenstown	South Africa	Record daily precipitation	46.7 mm (1.8 in)	37 of 100 (Notable)
Mankachar	India	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Amarpara	India	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Cradock	South Africa	Record daily precipitation	39.9 mm (1.6 in)	36 of 100 (Notable)
Assobani	India	Record daily precipitation	28.2 mm (1.1 in)	35 of 100 (Notable)
Bahraich	India	Record daily precipitation	25.7 mm (1.0 in)	35 of 100 (Notable)
Basti	India	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Goalpara	India	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Kishanganj	India	Record daily precipitation	35.3 mm (1.4 in)	34 of 100 (Routine)
Katbari	India	Record daily precipitation	27.9 mm (1.1 in)	34 of 100 (Routine)
Biswan	India	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Dhanbad Sr	India	Record daily precipitation	45.2 mm (1.8 in)	33 of 100 (Routine)
Pachamba	India	Record daily precipitation	30.5 mm (1.2 in)	33 of 100 (Routine)
Alicedale	South Africa	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Walsingham 1	South Africa	Record daily precipitation	61.0 mm (2.4 in)	33 of 100 (Routine)
Premaydena Hatchery	Australia	Record daily precipitation	45.2 mm (1.8 in)	31 of 100 (Routine)
Lakhipur	India	Record daily precipitation	44.7 mm (1.8 in)	31 of 100 (Routine)
Chas	India	Record daily precipitation	47.0 mm (1.9 in)	31 of 100 (Routine)

Counts by Type and Timescale

486 records

Records set or tied on 20 March 1940 by type: Highest daily maximum 35, Lowest daily maximum 12, Highest daily minimum 18, Lowest daily minimum 9, Heaviest daily rainfall 372, Heaviest daily snowfall 34, Deepest snow cover 6.

Records on 20 March 1940 by type
Record type	Records
Highest daily maximum	35
Lowest daily maximum	12
Highest daily minimum	18
Lowest daily minimum	9
Heaviest daily rainfall	372
Heaviest daily snowfall	34
Deepest snow cover	6

Records on 20 March 1940 by timescale: all-time 1, monthly 20, daily 465.

How Much Records Were Beaten By

448 broken records

Margins by which the 448 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 166.0. Ties are not counted.

Top 20 by Significance

20 March 1940

Top 20 records on 20 March 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 March 1940	Borio, IN	daily rain	35.8 mm (1.4 in)	35.8 mm (1.4 in)	38 years	55 of 100 (Notable)
20 March 1940	Khalilabad, IN	monthly rain	63.5 mm (2.5 in)	27.9 mm (1.1 in)	24 years	55 of 100 (Notable)
20 March 1940	Jahanabad, IN	daily rain	34.8 mm (1.4 in)	34.0 mm (1.3 in)	26 years	51 of 100 (Notable)
20 March 1940	Atlin, CA	daily snowfall	17.8 cm (7.0 in)	12.7 cm (5.0 in)	33 years	50 of 100 (Notable)
20 March 1940	Ranchi, IN	daily rain	53.1 mm (2.1 in)	49.0 mm (1.9 in)	20 years	50 of 100 (Notable)
20 March 1940	Perdeberg (Sar), ZA	daily rain	96.5 mm (3.8 in)	73.6 mm (2.9 in)	24 years	50 of 100 (Notable)
20 March 1940	Howell Wwtp, US	daily snowfall	19.1 cm (7.5 in)	16.6 cm (6.5 in)	18 years	50 of 100 (Notable)
20 March 1940	Chakaibanda, IN	daily rain	41.9 mm (1.6 in)	38.1 mm (1.5 in)	26 years	49 of 100 (Notable)
20 March 1940	Jagersfontein, ZA	daily rain	64.5 mm (2.5 in)	52.3 mm (2.1 in)	16 years	49 of 100 (Notable)
20 March 1940	Mmabatho Arpt, ZA	all-time rain	127.0 mm (5.0 in)	29.0 mm (1.1 in)	14 years	49 of 100 (Notable)
20 March 1940	Monghyr, IN	daily rain	25.4 mm (1.0 in)	24.6 mm (1.0 in)	29 years	48 of 100 (Notable)
20 March 1940	Paraiyahat, IN	daily rain	42.2 mm (1.7 in)	42.2 mm (1.7 in)	39 years	48 of 100 (Notable)
20 March 1940	Rowena (Bunna Bunna), AU	daily rain	71.1 mm (2.8 in)	53.1 mm (2.1 in)	27 years	47 of 100 (Notable)
20 March 1940	Lucan, CA	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	20 years	47 of 100 (Notable)
20 March 1940	Dhanaha, IN	daily rain	38.1 mm (1.5 in)	36.1 mm (1.4 in)	27 years	47 of 100 (Notable)
20 March 1940	Bagodar I, IN	daily rain	38.1 mm (1.5 in)	38.1 mm (1.5 in)	35 years	46 of 100 (Notable)
20 March 1940	Jamalpur, IN	daily rain	33.5 mm (1.3 in)	31.7 mm (1.2 in)	26 years	46 of 100 (Notable)
20 March 1940	Sitka Magnetic Obsy, US	daily rain	57.2 mm (2.3 in)	36.6 mm (1.4 in)	21 years	46 of 100 (Notable)
20 March 1940	Barsoe, IN	monthly rain	42.7 mm (1.7 in)	22.1 mm (0.9 in)	33 years	45 of 100 (Notable)
20 March 1940	Godda, IN	daily rain	38.9 mm (1.5 in)	38.6 mm (1.5 in)	26 years	45 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

1808 to 1940

Records set or tied on this calendar date in each year from 1808 to 1940. 1940 had 486 records.

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

Records on 03-20 in each year
Year	Records
1808	3
1818	1
1822	2
1830	1
1834	1
1838	1
1845	1
1849	3
1850	1
1852	1
1853	1
1858	1
1862	1
1865	11
1866	1
1870	1
1872	2
1873	1
1874	2
1875	2
1876	2
1879	2
1881	2
1882	2
1883	1
1884	2
1885	3
1886	2
1887	3
1888	5
1889	5
1890	1
1892	1
1893	2
1894	5
1895	2
1896	5
1897	2
1898	5
1899	9
1900	8
1901	6
1902	13
1903	34
1904	12
1905	6
1906	16
1907	17
1908	4
1909	6
1910	20
1911	35
1912	12
1913	42
1914	51
1915	22
1916	46
1917	49
1918	40
1919	31
1920	52
1921	93
1922	49
1923	275
1924	76
1925	121
1926	103
1927	298
1928	258
1929	56
1930	86
1931	492
1932	117
1933	354
1934	243
1935	408
1936	245
1937	220
1938	394
1939	240
1940	486
1941	390
1942	325
1943	378
1944	611
1945	636
1946	435
1947	299
1948	697
1949	352
1950	367
1951	788
1952	589
1953	350
1954	303
1955	719
1956	527
1957	516
1958	467
1959	293
1960	594
1961	332
1962	363
1963	447
1964	525
1965	2,020
1966	367
1967	784
1968	819
1969	374
1970	912
1971	377
1972	635
1973	422
1974	755
1975	932
1976	989
1977	352
1978	863
1979	712
1980	458
1981	712
1982	1,189
1983	1,179
1984	775
1985	636
1986	666
1987	867
1988	1,044
1989	793
1990	1,496
1991	1,205
1992	654
1993	1,014
1994	1,040
1995	857
1996	1,147
1997	1,801
1998	963
1999	793
2000	894
2001	1,048
2002	1,698
2003	1,166
2004	1,701
2005	602
2006	1,353
2007	1,053
2008	993
2009	445
2010	1,264
2011	1,003
2012	3,051
2013	762
2014	800
2015	521
2016	450
2017	1,331
2018	587
2019	530
2020	1,006
2021	487
2022	667
2023	975
2024	520
2025	848
2026	3,126

Download the Data

Data for records on 1940-03-20: 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 25	371
25 to 50	56
50 to 75	14
75 to 100	3
100 to 125	0
125 to 150	2
150 to 175	2