Weather Records on 1 April 1940

840 weather records were set or tied worldwide on 1 April 1940. Highest significance: Woudzicht, ZA.

Key Facts for 1 April 1940

On 1 April 1940, 840 weather records were set or tied at long-record stations worldwide.
513 were record highs and 14 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 19 monthly and 821 daily.
Woudzicht set a monthly record daily precipitation of 72.6 mm (2.9 in) on 1 April 1940.
Across 160 earlier years (1803 to 2026) the same calendar date averaged 475 records.

Record Map

840 stations

840 station records on 1 April 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 April 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Woudzicht	South Africa	Record daily precipitation	72.6 mm (2.9 in)	50 of 100 (Notable)
Wasco	United States	Record daily precipitation	25.7 mm (1.0 in)	47 of 100 (Notable)
Kingman	United States	Record daily precipitation	34.8 mm (1.4 in)	43 of 100 (Notable)
Hallett (Old Canowie)	Australia	Record daily precipitation	26.7 mm (1.1 in)	42 of 100 (Notable)
Sterkspruit	South Africa	Record daily precipitation	40.6 mm (1.6 in)	42 of 100 (Notable)
Bergplaats	South Africa	Record daily precipitation	47.8 mm (1.9 in)	40 of 100 (Notable)
Mill Creek 2	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
El Cajon 2 E	United States	Record daily precipitation	35.3 mm (1.4 in)	38 of 100 (Notable)
Escondido	United States	Record daily precipitation	47.0 mm (1.9 in)	37 of 100 (Notable)
Eureka	United States	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Uppsala_Aut	Sweden	Record high minimum temperature	2.9 C (37.2 F)	36 of 100 (Notable)
Pomona/Fairplex	United States	Record daily precipitation	40.1 mm (1.6 in)	32 of 100 (Routine)
Riverside Fire STN 3	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Campsie	Canada	Record daily snowfall	12.7 cm (5.0 in)	31 of 100 (Routine)
Beaumont	United States	Record daily precipitation	39.6 mm (1.6 in)	30 of 100 (Routine)
Cuyamaca	United States	Record daily precipitation	105.4 mm (4.1 in)	30 of 100 (Routine)
Santa Ana River Ph 1	United States	Record daily precipitation	49.8 mm (2.0 in)	30 of 100 (Routine)
Warner Springs	United States	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Crosby	United States	Record daily snowfall	7.6 cm (3.0 in)	30 of 100 (Routine)
Jefferson 3SE	United States	Record high minimum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Columbus	United States	Record high minimum temperature	18.3 C (64.9 F)	28 of 100 (Routine)
Waukomis	United States	Record high minimum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Nord Odal	Norway	Record snow depth	80.0 cm (31.5 in)	27 of 100 (Routine)
Lockwood	United States	Record high minimum temperature	18.9 C (66.0 F)	27 of 100 (Routine)
Enid	United States	Record high minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)
Marree Comparison	Australia	Record daily precipitation	25.9 mm (1.0 in)	26 of 100 (Routine)
Blikana	South Africa	Record daily precipitation	30.5 mm (1.2 in)	26 of 100 (Routine)
Little Rock St Capitol	United States	Record high maximum temperature	32.2 C (90.0 F)	26 of 100 (Routine)
Iola	United States	Record high minimum temperature	18.3 C (64.9 F)	26 of 100 (Routine)
Grand Canyon HQ	United States	Record daily snowfall	20.3 cm (8.0 in)	25 of 100 (Routine)
Ozark	United States	Record high maximum temperature	32.8 C (91.0 F)	25 of 100 (Routine)
Greensburg	United States	Record high minimum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Winfield 3NE	United States	Record high minimum temperature	19.4 C (66.9 F)	25 of 100 (Routine)
Nevada Wtp	United States	Record high minimum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
Guthrie 5S	United States	Record high minimum temperature	20.6 C (69.1 F)	25 of 100 (Routine)
Morgantown 1	United States	Record high maximum temperature	25.6 C (78.1 F)	25 of 100 (Routine)
Reitz 36	South Africa	Record daily precipitation	35.6 mm (1.4 in)	24 of 100 (Routine)
Ash Fork 6 N	United States	Record daily snowfall	5.1 cm (2.0 in)	24 of 100 (Routine)
Conway	United States	Record high maximum temperature	34.4 C (93.9 F)	24 of 100 (Routine)
Corning	United States	Record high maximum temperature	32.2 C (90.0 F)	24 of 100 (Routine)
Corona	United States	Record daily precipitation	31.0 mm (1.2 in)	24 of 100 (Routine)
Sedan	United States	Record high minimum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Eldon	United States	Record high minimum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Kingfisher	United States	Record high minimum temperature	19.4 C (66.9 F)	24 of 100 (Routine)
Newkirk 5NE	United States	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Dunvegan	Canada	Record high minimum temperature	0.0 C (32.0 F)	23 of 100 (Routine)
Timovskoe	Russia	Record low minimum temperature	-35.3 C (-31.5 F)	23 of 100 (Routine)
El Dorado	United States	Record high minimum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Fredonia	United States	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Las Vegas	United States	Record low maximum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
Cloud Chief 2 SE	United States	Record high minimum temperature	19.4 C (66.9 F)	23 of 100 (Routine)
Woodward	United States	Record high minimum temperature	19.4 C (66.9 F)	23 of 100 (Routine)
Franklin Sewage Plt	United States	Record high maximum temperature	31.7 C (89.1 F)	23 of 100 (Routine)
Quanah 2 SW	United States	Record high minimum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Columbia Wb City	United States	Record high minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)
Lares	Puerto Rico [United States]	Record high minimum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
1 ENE Fairfield	United States	Record high maximum temperature	30.6 C (87.1 F)	22 of 100 (Routine)
Horton	United States	Record high minimum temperature	10.6 C (51.1 F)	22 of 100 (Routine)
Independence	United States	Record high minimum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Neosho	United States	Record high minimum temperature	16.7 C (62.1 F)	22 of 100 (Routine)

Counts by Type and Timescale

840 records

Records set or tied on 1 April 1940 by type: Highest daily maximum 331, Lowest daily maximum 11, Highest daily minimum 182, Lowest daily minimum 3, Heaviest daily rainfall 289, Heaviest daily snowfall 16, Deepest snow cover 8.

Records on 1 April 1940 by type
Record type	Records
Highest daily maximum	331
Lowest daily maximum	11
Highest daily minimum	182
Lowest daily minimum	3
Heaviest daily rainfall	289
Heaviest daily snowfall	16
Deepest snow cover	8

Records on 1 April 1940 by timescale: all-time 0, monthly 19, daily 821.

How Much Records Were Beaten By

748 broken records

Margins by which the 748 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.0. Ties are not counted.

Top 20 by Significance

1 April 1940

Top 20 records on 1 April 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 April 1940	Woudzicht, ZA	monthly rain	72.6 mm (2.9 in)	30.7 mm (1.2 in)	16 years	50 of 100 (Notable)
1 April 1940	Wasco, US	daily rain	25.7 mm (1.0 in)	20.6 mm (0.8 in)	37 years	47 of 100 (Notable)
1 April 1940	Kingman, US	daily rain	34.8 mm (1.4 in)	33.8 mm (1.3 in)	10 years	43 of 100 (Notable)
1 April 1940	Hallett (Old Canowie), AU	daily rain	26.7 mm (1.1 in)	18.8 mm (0.7 in)	40 years	42 of 100 (Notable)
1 April 1940	Sterkspruit, ZA	daily rain	40.6 mm (1.6 in)	26.6 mm (1.0 in)	21 years	42 of 100 (Notable)
1 April 1940	Bergplaats, ZA	daily rain	47.8 mm (1.9 in)	31.8 mm (1.3 in)	30 years	40 of 100 (Notable)
1 April 1940	Mill Creek 2, US	daily rain	48.3 mm (1.9 in)	34.1 mm (1.3 in)	33 years	39 of 100 (Notable)
1 April 1940	El Cajon 2 E, US	daily rain	35.3 mm (1.4 in)	21.6 mm (0.9 in)	37 years	38 of 100 (Notable)
1 April 1940	Escondido, US	daily rain	47.0 mm (1.9 in)	24.4 mm (1.0 in)	37 years	37 of 100 (Notable)
1 April 1940	Eureka, US	daily rain	30.5 mm (1.2 in)	16.0 mm (0.6 in)	27 years	37 of 100 (Notable)
1 April 1940	Uppsala_Aut, SE	daily high min	2.9 C (37.2 F)	0.4 C (0.7 F)	85 years	36 of 100 (Notable)
1 April 1940	Pomona/Fairplex, US	daily rain	40.1 mm (1.6 in)	29.7 mm (1.2 in)	15 years	32 of 100 (Routine)
1 April 1940	Riverside Fire STN 3, US	daily rain	35.6 mm (1.4 in)	13.8 mm (0.5 in)	37 years	32 of 100 (Routine)
1 April 1940	Campsie, CA	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	12 years	31 of 100 (Routine)
1 April 1940	Beaumont, US	daily rain	39.6 mm (1.6 in)	27.2 mm (1.1 in)	10 years	30 of 100 (Routine)
1 April 1940	Cuyamaca, US	daily rain	105.4 mm (4.1 in)	28.7 mm (1.1 in)	37 years	30 of 100 (Routine)
1 April 1940	Santa Ana River Ph 1, US	daily rain	49.8 mm (2.0 in)	34.1 mm (1.3 in)	16 years	30 of 100 (Routine)
1 April 1940	Warner Springs, US	daily rain	31.8 mm (1.3 in)	26.2 mm (1.0 in)	10 years	30 of 100 (Routine)
1 April 1940	Crosby, US	daily snowfall	7.6 cm (3.0 in)	6.3 cm (2.5 in)	29 years	30 of 100 (Routine)
1 April 1940	Jefferson 3SE, US	daily high min	20.0 C (68.0 F)	7.8 C (14.0 F)	37 years	29 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

1803 to 1940

Records set or tied on this calendar date in each year from 1803 to 1940. 1940 had 840 records.

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

Records on 04-01 in each year
Year	Records
1803	1
1805	1
1808	1
1813	1
1815	3
1819	1
1830	2
1847	2
1848	1
1850	1
1855	3
1856	1
1861	2
1862	2
1865	1
1869	2
1872	1
1873	1
1874	2
1876	1
1878	3
1879	2
1881	1
1885	1
1887	2
1888	2
1889	2
1891	5
1892	1
1893	2
1896	4
1897	5
1898	3
1899	4
1900	4
1901	4
1902	4
1903	12
1904	29
1905	10
1906	7
1907	24
1908	5
1909	13
1910	26
1911	27
1912	31
1913	35
1914	37
1915	25
1916	35
1917	80
1918	51
1919	165
1920	65
1921	46
1922	98
1923	319
1924	257
1925	111
1926	234
1927	326
1928	194
1929	336
1930	153
1931	846
1932	292
1933	188
1934	153
1935	424
1936	1,248
1937	192
1938	461
1939	226
1940	840
1941	285
1942	209
1943	319
1944	266
1945	880
1946	1,172
1947	390
1948	590
1949	308
1950	455
1951	406
1952	419
1953	249
1954	493
1955	288
1956	744
1957	314
1958	535
1959	821
1960	295
1961	496
1962	652
1963	1,123
1964	951
1965	678
1966	689
1967	928
1968	377
1969	611
1970	894
1971	384
1972	510
1973	680
1974	894
1975	1,806
1976	767
1977	524
1978	1,013
1979	738
1980	797
1981	1,115
1982	884
1983	643
1984	662
1985	826
1986	982
1987	1,762
1988	1,259
1989	1,098
1990	952
1991	693
1992	981
1993	783
1994	739
1995	1,056
1996	996
1997	1,255
1998	1,703
1999	1,341
2000	690
2001	575
2002	985
2003	1,366
2004	926
2005	1,086
2006	929
2007	963
2008	1,457
2009	846
2010	1,022
2011	1,105
2012	1,327
2013	719
2014	657
2015	606
2016	842
2017	792
2018	870
2019	674
2020	719
2021	790
2022	853
2023	1,069
2024	788
2025	779
2026	1,042

Download the Data

Data for records on 1940-04-01: 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	717
20 to 40	19
40 to 60	5
60 to 80	4
80 to 100	0
100 to 120	3