Weather Records on 21 April 1946

448 weather records were set or tied worldwide on 21 April 1946. Highest significance: Trimbak, IN.

Key Facts for 21 April 1946

On 21 April 1946, 448 weather records were set or tied at long-record stations worldwide.
258 were record highs and 51 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 442 daily.
Trimbak set a daily record precipitation of 34.3 mm (1.4 in) on 21 April 1946.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

448 stations

448 station records on 21 April 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Trimbak	India	Record daily precipitation	34.3 mm (1.4 in)	57 of 100 (Notable)
Kumsi	India	Record daily precipitation	81.3 mm (3.2 in)	53 of 100 (Notable)
Clayoquot	Canada	Record daily precipitation	133.4 mm (5.3 in)	52 of 100 (Notable)
Bobbili	India	Record daily precipitation	73.7 mm (2.9 in)	50 of 100 (Notable)
Vishnupur	India	Record daily precipitation	44.5 mm (1.8 in)	50 of 100 (Notable)
Wokha	India	Record daily precipitation	100.3 mm (3.9 in)	46 of 100 (Notable)
Odendaalsrus	South Africa	Record daily precipitation	36.1 mm (1.4 in)	41 of 100 (Notable)
Gobindpur	India	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Patan	India	Record daily precipitation	30.7 mm (1.2 in)	34 of 100 (Routine)
Rapur	India	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Parrsboro	Canada	Record daily precipitation	31.0 mm (1.2 in)	29 of 100 (Routine)
Konda	India	Record daily precipitation	37.3 mm (1.5 in)	29 of 100 (Routine)
Alice Springs Post Office	Australia	Record low minimum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Manoharpur	India	Record daily precipitation	35.8 mm (1.4 in)	26 of 100 (Routine)
Sibley	United States	Record high minimum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Sheikhpura	India	Record daily precipitation	36.8 mm (1.4 in)	25 of 100 (Routine)
Long Prairie	United States	Record high minimum temperature	10.6 C (51.1 F)	25 of 100 (Routine)
Wheaton	United States	Record high minimum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Howard	United States	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Angul	India	Record daily precipitation	25.7 mm (1.0 in)	24 of 100 (Routine)
Morekulam	India	Record daily precipitation	40.6 mm (1.6 in)	24 of 100 (Routine)
Saentis	Switzerland	Record high minimum temperature	-0.2 C (31.6 F)	24 of 100 (Routine)
Wahpeton 3 N	United States	Record high minimum temperature	11.7 C (53.1 F)	24 of 100 (Routine)
La Sal	United States	Record high minimum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Quatsino	Canada	Record daily precipitation	31.5 mm (1.2 in)	23 of 100 (Routine)
Parvatipur	India	Record daily precipitation	56.9 mm (2.2 in)	23 of 100 (Routine)
Zumbrota	United States	Record high maximum temperature	28.9 C (84.0 F)	23 of 100 (Routine)
Flandreau	United States	Record high minimum temperature	14.4 C (57.9 F)	23 of 100 (Routine)
Watertown Rgnl AP	United States	Record high minimum temperature	14.4 C (57.9 F)	23 of 100 (Routine)
La Harpe	United States	Record high minimum temperature	15.6 C (60.1 F)	22 of 100 (Routine)
Castlewood	United States	Record high minimum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
De Smet	United States	Record high minimum temperature	12.8 C (55.0 F)	22 of 100 (Routine)
Milbank 4 NW	United States	Record high maximum temperature	30.6 C (87.1 F)	22 of 100 (Routine)
Olga 2 SE	United States	Record low minimum temperature	1.1 C (34.0 F)	22 of 100 (Routine)
Bloomington Indiana UNIV	United States	Record high maximum temperature	28.9 C (84.0 F)	21 of 100 (Routine)
Henderson 2 NNW	United States	Record high maximum temperature	35.0 C (95.0 F)	21 of 100 (Routine)
Alexandria	United States	Record high minimum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Clark	United States	Record high minimum temperature	11.1 C (52.0 F)	21 of 100 (Routine)
Murfreesboro 5 N	United States	Record high maximum temperature	31.1 C (88.0 F)	21 of 100 (Routine)
Tullahoma	United States	Record high maximum temperature	30.6 C (87.1 F)	21 of 100 (Routine)
Floresville	United States	Record daily precipitation	36.8 mm (1.4 in)	21 of 100 (Routine)
Rochester Intl AP	United States	Record high minimum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Barrage Gouin	Canada	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Hindol	India	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Penong (Penalumba)	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Palandu	India	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Altamura	South Africa	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Morokweng (Pol)	South Africa	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Ostas I Hegra	Norway	Record daily precipitation	18.1 mm (0.7 in)	20 of 100 (Routine)
Igatpuri	India	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Trekpad	South Africa	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Vadgaon (Maval)	India	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
Dawson (Anda-Vale)	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Gumri	Armenia	Record daily precipitation	10.0 mm (0.4 in)	20 of 100 (Routine)
Raghunathpur	India	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Leeuspruit Wes	South Africa	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Satara	India	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Potchefstroom;Braksp	South Africa	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Ft Bayard 4W	United States	Record daily precipitation	1.8 mm (0.07 in)	20 of 100 (Routine)

Counts by Type and Timescale

448 records

Records set or tied on 21 April 1946 by type: Highest daily maximum 154, Lowest daily maximum 21, Highest daily minimum 104, Lowest daily minimum 30, Heaviest daily rainfall 137, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 21 April 1946 by type
Record type	Records
Highest daily maximum	154
Lowest daily maximum	21
Highest daily minimum	104
Lowest daily minimum	30
Heaviest daily rainfall	137
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 21 April 1946 by timescale: all-time 0, monthly 6, daily 442.

How Much Records Were Beaten By

338 broken records

Margins by which the 338 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.0. Ties are not counted.

Top 20 by Significance

21 April 1946

Top 20 records on 21 April 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1946	Trimbak, IN	daily rain	34.3 mm (1.4 in)	34.3 mm (1.4 in)	44 years	57 of 100 (Notable)
21 April 1946	Kumsi, IN	daily rain	81.3 mm (3.2 in)	55.9 mm (2.2 in)	32 years	53 of 100 (Notable)
21 April 1946	Clayoquot, CA	monthly rain	133.4 mm (5.3 in)	37.4 mm (1.5 in)	41 years	52 of 100 (Notable)
21 April 1946	Bobbili, IN	daily rain	73.7 mm (2.9 in)	55.4 mm (2.2 in)	20 years	50 of 100 (Notable)
21 April 1946	Vishnupur, IN	daily rain	44.5 mm (1.8 in)	29.0 mm (1.1 in)	44 years	50 of 100 (Notable)
21 April 1946	Wokha, IN	daily rain	100.3 mm (3.9 in)	55.1 mm (2.2 in)	33 years	46 of 100 (Notable)
21 April 1946	Odendaalsrus, ZA	daily rain	36.1 mm (1.4 in)	32.3 mm (1.3 in)	28 years	41 of 100 (Notable)
21 April 1946	Gobindpur, IN	monthly rain	61.0 mm (2.4 in)	10.2 mm (0.4 in)	36 years	38 of 100 (Notable)
21 April 1946	Patan, IN	daily rain	30.7 mm (1.2 in)	26.4 mm (1.0 in)	31 years	34 of 100 (Routine)
21 April 1946	Rapur, IN	daily rain	27.9 mm (1.1 in)	24.1 mm (0.9 in)	36 years	31 of 100 (Routine)
21 April 1946	Santa Fe, US	daily high max	25.6 C (78.1 F)	1.7 C (3.1 F)	69 years	30 of 100 (Routine)
21 April 1946	Parrsboro, CA	daily rain	31.0 mm (1.2 in)	10.7 mm (0.4 in)	41 years	29 of 100 (Routine)
21 April 1946	Konda, IN	daily rain	37.3 mm (1.5 in)	22.1 mm (0.9 in)	20 years	29 of 100 (Routine)
21 April 1946	Alice Springs Post Office, AU	daily low min	2.8 C (37.0 F)	1.6 C (2.9 F)	60 years	27 of 100 (Routine)
21 April 1946	Manoharpur, IN	daily rain	35.8 mm (1.4 in)	21.1 mm (0.8 in)	5 years	26 of 100 (Routine)
21 April 1946	Sibley, US	daily high min	13.9 C (57.0 F)	4.5 C (8.1 F)	44 years	26 of 100 (Routine)
21 April 1946	Sheikhpura, IN	daily rain	36.8 mm (1.4 in)	22.6 mm (0.9 in)	29 years	25 of 100 (Routine)
21 April 1946	Long Prairie, US	daily high min	10.6 C (51.1 F)	4.5 C (8.1 F)	40 years	25 of 100 (Routine)
21 April 1946	Wheaton, US	monthly high min	16.1 C (61.0 F)	1.7 C (3.1 F)	31 years	25 of 100 (Routine)
21 April 1946	Howard, US	daily high min	14.4 C (57.9 F)	5.0 C (9.0 F)	37 years	25 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

1793 to 1946

Records set or tied on this calendar date in each year from 1793 to 1946. 1946 had 448 records.

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

Records on 04-21 in each year
Year	Records
1793	1
1814	1
1820	1
1838	1
1849	2
1851	1
1852	3
1854	1
1858	3
1861	2
1865	3
1866	1
1868	1
1870	1
1875	4
1876	2
1877	1
1879	3
1880	1
1881	1
1882	1
1884	1
1885	2
1888	1
1890	1
1891	1
1892	1
1893	2
1894	4
1895	1
1897	1
1898	2
1899	2
1900	7
1901	17
1902	7
1903	3
1904	10
1905	18
1906	5
1907	17
1908	25
1909	20
1910	33
1911	9
1912	22
1913	14
1914	220
1915	24
1916	64
1917	48
1918	84
1919	31
1920	85
1921	59
1922	70
1923	223
1924	119
1925	295
1926	148
1927	284
1928	269
1929	193
1930	127
1931	358
1932	304
1933	201
1934	497
1935	266
1936	277
1937	416
1938	295
1939	110
1940	462
1941	306
1942	285
1943	481
1944	261
1945	367
1946	448
1947	459
1948	365
1949	448
1950	529
1951	884
1952	665
1953	640
1954	527
1955	607
1956	497
1957	824
1958	329
1959	505
1960	889
1961	647
1962	319
1963	778
1964	1,125
1965	658
1966	756
1967	903
1968	655
1969	388
1970	728
1971	546
1972	593
1973	1,163
1974	528
1975	360
1976	452
1977	854
1978	735
1979	449
1980	1,934
1981	944
1982	1,075
1983	1,366
1984	1,231
1985	1,245
1986	977
1987	1,290
1988	898
1989	1,557
1990	1,463
1991	1,291
1992	1,763
1993	847
1994	859
1995	1,476
1996	788
1997	964
1998	876
1999	752
2000	921
2001	967
2002	1,312
2003	607
2004	586
2005	693
2006	761
2007	480
2008	1,327
2009	983
2010	805
2011	1,053
2012	687
2013	1,015
2014	393
2015	621
2016	587
2017	797
2018	862
2019	731
2020	397
2021	1,608
2022	433
2023	886
2024	754
2025	506
2026	853

Download the Data

Data for records on 1946-04-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	321
20 to 40	13
40 to 60	3
60 to 80	0
80 to 100	1