Weather Records on 21 April 1945

367 weather records were set or tied worldwide on 21 April 1945. Highest significance: Mount Forest, CA.

Key Facts for 21 April 1945

On 21 April 1945, 367 weather records were set or tied at long-record stations worldwide.
105 were record highs and 46 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 358 daily.
Mount Forest set a daily record snowfall of 9.7 cm (3.8 in) on 21 April 1945.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 463 records.

Record Map

367 stations

367 station records on 21 April 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mount Forest	Canada	Record daily snowfall	9.7 cm (3.8 in)	59 of 100 (Notable)
Belleville	Canada	Record daily snowfall	9.7 cm (3.8 in)	58 of 100 (Notable)
Tuttlingen	Germany	Record daily precipitation	26.2 mm (1.0 in)	50 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record daily precipitation	106.7 mm (4.2 in)	48 of 100 (Notable)
Banderlierkop (Pol)	South Africa	Record daily precipitation	35.6 mm (1.4 in)	47 of 100 (Notable)
Badplaas (Pol)	South Africa	Record daily precipitation	38.1 mm (1.5 in)	46 of 100 (Notable)
Lost River	Canada	Record daily snowfall	15.2 cm (6.0 in)	45 of 100 (Notable)
Llano	United States	Record daily precipitation	83.1 mm (3.3 in)	45 of 100 (Notable)
Walkerton	Canada	Record daily snowfall	15.2 cm (6.0 in)	44 of 100 (Notable)
Quebec	Canada	Record daily snowfall	20.3 cm (8.0 in)	43 of 100 (Notable)
Machadodorp	South Africa	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Manly Town Hall	Australia	Record daily precipitation	142.5 mm (5.6 in)	39 of 100 (Notable)
Ricardo	United States	Record daily precipitation	78.2 mm (3.1 in)	38 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record high maximum temperature	25.9 C (78.6 F)	37 of 100 (Notable)
Columbus	United States	Record daily precipitation	62.2 mm (2.4 in)	37 of 100 (Notable)
Beauceville	Canada	Record daily snowfall	30.5 cm (12.0 in)	34 of 100 (Routine)
Vlaklaagte	South Africa	Record daily precipitation	47.8 mm (1.9 in)	34 of 100 (Routine)
Sydney Botanic Gardens	Australia	Record daily precipitation	92.7 mm (3.6 in)	33 of 100 (Routine)
Lampasas	United States	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)
Sarita 7 E	United States	Record daily precipitation	55.6 mm (2.2 in)	33 of 100 (Routine)
Fichtelberg	Germany	Record daily precipitation	31.5 mm (1.2 in)	31 of 100 (Routine)
Cuero	United States	Record daily precipitation	55.9 mm (2.2 in)	31 of 100 (Routine)
Mercedes 6 SSE	United States	Record daily precipitation	44.2 mm (1.7 in)	31 of 100 (Routine)
Weslaco	United States	Record daily precipitation	44.2 mm (1.7 in)	31 of 100 (Routine)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	30 of 100 (Routine)
Araria	India	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Kadipur	India	Record daily precipitation	27.2 mm (1.1 in)	29 of 100 (Routine)
Pakur	India	Record daily precipitation	44.5 mm (1.8 in)	28 of 100 (Routine)
Beaumont City	United States	Record daily precipitation	110.7 mm (4.4 in)	28 of 100 (Routine)
Harlingen	United States	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Perpignan	France	Record high minimum temperature	20.1 C (68.2 F)	27 of 100 (Routine)
Mosman (Bapaume Road)	Australia	Record daily precipitation	125.0 mm (4.9 in)	26 of 100 (Routine)
Lucknow	Canada	Record daily snowfall	8.9 cm (3.5 in)	26 of 100 (Routine)
Siddapur	India	Record daily precipitation	37.1 mm (1.5 in)	26 of 100 (Routine)
Gobichettipalaya	India	Record daily precipitation	32.8 mm (1.3 in)	26 of 100 (Routine)
Arasadi	India	Record daily precipitation	46.2 mm (1.8 in)	26 of 100 (Routine)
Jennings	United States	Record daily precipitation	66.0 mm (2.6 in)	26 of 100 (Routine)
Samastipur	India	Record daily precipitation	35.6 mm (1.4 in)	25 of 100 (Routine)
Atraula	India	Record daily precipitation	26.4 mm (1.0 in)	25 of 100 (Routine)
Hewitt	United States	Record daily precipitation	64.0 mm (2.5 in)	25 of 100 (Routine)
Sugar Land	United States	Record daily precipitation	66.0 mm (2.6 in)	25 of 100 (Routine)
Elko Rgnl AP	United States	Record high minimum temperature	5.0 C (41.0 F)	25 of 100 (Routine)
Proserpine Post Office	Australia	Record daily precipitation	51.3 mm (2.0 in)	24 of 100 (Routine)
Chatswood Water Supply	Australia	Record daily precipitation	55.9 mm (2.2 in)	24 of 100 (Routine)
Channarayapatna	India	Record daily precipitation	46.2 mm (1.8 in)	24 of 100 (Routine)
Beeville 5 NE	United States	Record daily precipitation	28.2 mm (1.1 in)	24 of 100 (Routine)
Hempstead	United States	Record daily precipitation	59.7 mm (2.4 in)	24 of 100 (Routine)
Brighton Downs	Australia	Record daily precipitation	57.2 mm (2.3 in)	23 of 100 (Routine)
La Pocatiere Cda	Canada	Record daily snowfall	10.2 cm (4.0 in)	23 of 100 (Routine)
Erode	India	Record daily precipitation	25.4 mm (1.0 in)	23 of 100 (Routine)
Eerstegeluk	South Africa	Record daily precipitation	27.9 mm (1.1 in)	23 of 100 (Routine)
Brownwood 2NE	United States	Record daily precipitation	32.5 mm (1.3 in)	23 of 100 (Routine)
Park Rapids Muni AP	United States	Record low maximum temperature	0.6 C (33.1 F)	23 of 100 (Routine)
Longreach Post Office	Australia	Record high minimum temperature	22.2 C (72.0 F)	22 of 100 (Routine)
Ponnamaravathi	India	Record daily precipitation	34.0 mm (1.3 in)	22 of 100 (Routine)
Pierce 1 E	United States	Record daily precipitation	47.0 mm (1.9 in)	22 of 100 (Routine)
Waco	United States	Record daily precipitation	40.6 mm (1.6 in)	22 of 100 (Routine)
Roseville Bowling Club	Australia	Record daily precipitation	43.7 mm (1.7 in)	21 of 100 (Routine)
Rangia	India	Record daily precipitation	38.9 mm (1.5 in)	21 of 100 (Routine)
Pokegama Dam	United States	Record low minimum temperature	-10.6 C (12.9 F)	21 of 100 (Routine)

Counts by Type and Timescale

367 records

Records set or tied on 21 April 1945 by type: Highest daily maximum 38, Lowest daily maximum 16, Highest daily minimum 67, Lowest daily minimum 30, Heaviest daily rainfall 192, Heaviest daily snowfall 24.

Records on 21 April 1945 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	16
Highest daily minimum	67
Lowest daily minimum	30
Heaviest daily rainfall	192
Heaviest daily snowfall	24
Deepest snow cover	0

Records on 21 April 1945 by timescale: all-time 0, monthly 9, daily 358.

How Much Records Were Beaten By

303 broken records

Margins by which the 303 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

21 April 1945

Top 20 records on 21 April 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1945	Mount Forest, CA	daily snowfall	9.7 cm (3.8 in)	9.7 cm (3.8 in)	52 years	59 of 100 (Notable)
21 April 1945	Belleville, CA	daily snowfall	9.7 cm (3.8 in)	9.7 cm (3.8 in)	78 years	58 of 100 (Notable)
21 April 1945	Tuttlingen, DE	daily rain	26.2 mm (1.0 in)	18.0 mm (0.7 in)	20 years	50 of 100 (Notable)
21 April 1945	Sydney (Observatory Hill), AU	daily rain	106.7 mm (4.2 in)	61.0 mm (2.4 in)	28 years	48 of 100 (Notable)
21 April 1945	Banderlierkop (Pol), ZA	daily rain	35.6 mm (1.4 in)	32.3 mm (1.3 in)	38 years	47 of 100 (Notable)
21 April 1945	Badplaas (Pol), ZA	daily rain	38.1 mm (1.5 in)	38.1 mm (1.5 in)	32 years	46 of 100 (Notable)
21 April 1945	Lost River, CA	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	32 years	45 of 100 (Notable)
21 April 1945	Llano, US	daily rain	83.1 mm (3.3 in)	50.8 mm (2.0 in)	24 years	45 of 100 (Notable)
21 April 1945	Walkerton, CA	daily snowfall	15.2 cm (6.0 in)	14.4 cm (5.7 in)	42 years	44 of 100 (Notable)
21 April 1945	Quebec, CA	daily snowfall	20.3 cm (8.0 in)	7.6 cm (3.0 in)	70 years	43 of 100 (Notable)
21 April 1945	Machadodorp, ZA	daily rain	25.4 mm (1.0 in)	20.6 mm (0.8 in)	40 years	40 of 100 (Notable)
21 April 1945	Manly Town Hall, AU	monthly rain	142.5 mm (5.6 in)	28.2 mm (1.1 in)	30 years	39 of 100 (Notable)
21 April 1945	Ricardo, US	daily rain	78.2 mm (3.1 in)	61.7 mm (2.4 in)	34 years	38 of 100 (Notable)
21 April 1945	Hobart (Ellerslie Road), AU	daily high max	25.9 C (78.6 F)	4.8 C (8.6 F)	61 years	37 of 100 (Notable)
21 April 1945	Columbus, US	daily rain	62.2 mm (2.4 in)	36.5 mm (1.4 in)	24 years	37 of 100 (Notable)
21 April 1945	Beauceville, CA	monthly snowfall	30.5 cm (12.0 in)	11.4 cm (4.5 in)	6 years	34 of 100 (Routine)
21 April 1945	Vlaklaagte, ZA	daily rain	47.8 mm (1.9 in)	29.3 mm (1.2 in)	22 years	34 of 100 (Routine)
21 April 1945	Sydney Botanic Gardens, AU	daily rain	92.7 mm (3.6 in)	30.7 mm (1.2 in)	28 years	33 of 100 (Routine)
21 April 1945	Lampasas, US	daily rain	50.8 mm (2.0 in)	36.3 mm (1.4 in)	24 years	33 of 100 (Routine)
21 April 1945	Sarita 7 E, US	daily rain	55.6 mm (2.2 in)	34.5 mm (1.4 in)	18 years	33 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 1945

Records set or tied on this calendar date in each year from 1793 to 1945. 1945 had 367 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 1945-04-21: 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	252
20 to 40	37
40 to 60	5
60 to 80	4
80 to 100	2
100 to 120	1
120 to 140	0
140 to 160	2