Weather Records on 21 April 2021

1,608 weather records were set or tied worldwide on 21 April 2021. Highest significance: Carpentaria Downs Station, AU.

Key Facts for 21 April 2021

On 21 April 2021, 1,608 weather records were set or tied at long-record stations worldwide.
145 were record highs and 1,033 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 40 monthly and 1,568 daily.
Carpentaria Downs Station set a daily record precipitation of 75.6 mm (3.0 in) on 21 April 2021.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 455 records.

Record Map

1,608 stations

1,608 station records on 21 April 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Carpentaria Downs Station	Australia	Record daily precipitation	75.6 mm (3.0 in)	79 of 100 (Major)
Paulding	United States	Record daily snowfall	12.7 cm (5.0 in)	78 of 100 (Major)
Kokomo 3 WSW	United States	Record daily snowfall	12.7 cm (5.0 in)	72 of 100 (Major)
Bemerside	Australia	Record daily precipitation	333.2 mm (13.1 in)	68 of 100 (Major)
Oberlin	United States	Record snow depth	12.7 cm (5.0 in)	65 of 100 (Major)
Upper Stone Exelby	Australia	Record daily precipitation	146.0 mm (5.7 in)	62 of 100 (Major)
Washington Court House	United States	Record daily snowfall	7.6 cm (3.0 in)	62 of 100 (Major)
Albion	United States	Record snow depth	12.7 cm (5.0 in)	61 of 100 (Major)
Wauseon Wtp	United States	Record snow depth	12.7 cm (5.0 in)	60 of 100 (Major)
Fremont	United States	Record daily snowfall	10.2 cm (4.0 in)	59 of 100 (Notable)
Lima Wwtp	United States	Record daily snowfall	8.4 cm (3.3 in)	59 of 100 (Notable)
Cincinnati/Northern Kentucky I	United States	Record daily snowfall	6.1 cm (2.4 in)	58 of 100 (Notable)
Van Wert 1 S	United States	Record daily snowfall	10.2 cm (4.0 in)	57 of 100 (Notable)
Repvag	Norway	Record daily precipitation	31.3 mm (1.2 in)	56 of 100 (Notable)
Hartford City 4 ESE	United States	Record daily snowfall	11.2 cm (4.4 in)	56 of 100 (Notable)
Chardon	United States	Record daily snowfall	15.2 cm (6.0 in)	56 of 100 (Notable)
Mansfield Lahm Rgnl AP	United States	Record snow depth	13.0 cm (5.1 in)	56 of 100 (Notable)
Ganca	Azerbaijan	Record high minimum temperature	18.2 C (64.8 F)	55 of 100 (Notable)
Low Holm Station	Australia	Record daily precipitation	71.8 mm (2.8 in)	55 of 100 (Notable)
Greenfield	United States	Record daily snowfall	7.6 cm (3.0 in)	55 of 100 (Notable)
Marshfield 4 WSW	United States	Record daily snowfall	7.9 cm (3.1 in)	55 of 100 (Notable)
Mtn Grove 2 N	United States	Record daily snowfall	7.6 cm (3.0 in)	55 of 100 (Notable)
Ingham Composite	Australia	Record daily precipitation	245.0 mm (9.6 in)	54 of 100 (Notable)
Bucyrus	United States	Record daily snowfall	7.6 cm (3.0 in)	54 of 100 (Notable)
Mansfield	United States	Record daily snowfall	6.9 cm (2.7 in)	53 of 100 (Notable)
Dubois	United States	Record low minimum temperature	-20.0 C (-4.0 F)	53 of 100 (Notable)
Glendower Station	Australia	Record daily precipitation	59.0 mm (2.3 in)	52 of 100 (Notable)
Lamar 7N	United States	Record daily snowfall	6.4 cm (2.5 in)	52 of 100 (Notable)
Rolla Missouri S&T	United States	Record daily snowfall	5.3 cm (2.1 in)	52 of 100 (Notable)
Greenville Wtp	United States	Record daily snowfall	10.2 cm (4.0 in)	52 of 100 (Notable)
London State Fish Hatchery	United States	Record daily snowfall	11.2 cm (4.4 in)	52 of 100 (Notable)
Marysville	United States	Record daily snowfall	9.9 cm (3.9 in)	52 of 100 (Notable)
Wauseon Wtp	United States	Record daily snowfall	12.7 cm (5.0 in)	52 of 100 (Notable)
Hillsboro	United States	Record daily snowfall	5.1 cm (2.0 in)	51 of 100 (Notable)
Warsaw	United States	Record daily snowfall	5.3 cm (2.1 in)	50 of 100 (Notable)
Cassville 1 NE	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Kirksville	United States	Record daily snowfall	6.4 cm (2.5 in)	50 of 100 (Notable)
Lockport 2SE	United States	Record daily snowfall	5.8 cm (2.3 in)	50 of 100 (Notable)
Circleville	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Greenville Wtp	United States	Record snow depth	10.2 cm (4.0 in)	50 of 100 (Notable)
Norwalk Wwtp	United States	Record snow depth	10.2 cm (4.0 in)	50 of 100 (Notable)
Van Wert 1 S	United States	Record snow depth	10.2 cm (4.0 in)	50 of 100 (Notable)
Xenia 6 SSE	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Celina 3 NE	United States	Record daily snowfall	9.7 cm (3.8 in)	49 of 100 (Notable)
Buffalo	United States	Record daily snowfall	7.9 cm (3.1 in)	49 of 100 (Notable)
Bellenden Ker Bottom STN	Australia	Record daily precipitation	318.0 mm (12.5 in)	48 of 100 (Notable)
Prescott 2 NNW	United States	Record low minimum temperature	-1.1 C (30.0 F)	48 of 100 (Notable)
Tyler Pounds Fld	United States	Record low minimum temperature	1.7 C (35.1 F)	48 of 100 (Notable)
Cleveland	United States	Record daily snowfall	11.4 cm (4.5 in)	48 of 100 (Notable)
Oakley 4W	United States	Record low minimum temperature	-8.9 C (16.0 F)	47 of 100 (Notable)
Potosi 4 SW	United States	Record low maximum temperature	4.4 C (39.9 F)	47 of 100 (Notable)
Salem	United States	Record low maximum temperature	3.3 C (37.9 F)	47 of 100 (Notable)
Bellefontaine	United States	Record daily snowfall	6.1 cm (2.4 in)	47 of 100 (Notable)
Centerburg 2 SE	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Oberlin	United States	Record daily snowfall	11.4 cm (4.5 in)	47 of 100 (Notable)
Urbana Wrf	United States	Record daily snowfall	5.6 cm (2.2 in)	47 of 100 (Notable)
Marion 2 N	United States	Record daily snowfall	6.9 cm (2.7 in)	46 of 100 (Notable)
Grand Portage	United States	Record low minimum temperature	-8.9 C (16.0 F)	46 of 100 (Notable)
Tucumcari 4 NE	United States	Record low minimum temperature	-5.0 C (23.0 F)	46 of 100 (Notable)
Norwalk Wwtp	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)

Counts by Type and Timescale

1,608 records

Records set or tied on 21 April 2021 by type: Highest daily maximum 78, Lowest daily maximum 401, Highest daily minimum 67, Lowest daily minimum 632, Heaviest daily rainfall 106, Heaviest daily snowfall 208, Deepest snow cover 116.

Records on 21 April 2021 by type
Record type	Records
Highest daily maximum	78
Lowest daily maximum	401
Highest daily minimum	67
Lowest daily minimum	632
Heaviest daily rainfall	106
Heaviest daily snowfall	208
Deepest snow cover	116

Records on 21 April 2021 by timescale: all-time 0, monthly 40, daily 1,568.

How Much Records Were Beaten By

1,355 broken records

Margins by which the 1,355 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 205.0. Ties are not counted.

Top 20 by Significance

21 April 2021

Top 20 records on 21 April 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 2021	Carpentaria Downs Station, AU	daily rain	75.6 mm (3.0 in)	67.0 mm (2.6 in)	107 years	79 of 100 (Major)
21 April 2021	Paulding, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	104 years	78 of 100 (Major)
21 April 2021	Kokomo 3 WSW, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	119 years	72 of 100 (Major)
21 April 2021	Bemerside, AU	monthly rain	333.2 mm (13.1 in)	120.4 mm (4.7 in)	32 years	68 of 100 (Major)
21 April 2021	Oberlin, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	84 years	65 of 100 (Major)
21 April 2021	Upper Stone Exelby, AU	daily rain	146.0 mm (5.7 in)	128.0 mm (5.0 in)	47 years	62 of 100 (Major)
21 April 2021	Washington Court House, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	104 years	62 of 100 (Major)
21 April 2021	Albion, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	72 years	61 of 100 (Major)
21 April 2021	Wauseon Wtp, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	123 years	60 of 100 (Major)
21 April 2021	Fremont, US	daily snowfall	10.2 cm (4.0 in)	9.2 cm (3.6 in)	99 years	59 of 100 (Notable)
21 April 2021	Lima Wwtp, US	daily snowfall	8.4 cm (3.3 in)	5.9 cm (2.3 in)	120 years	59 of 100 (Notable)
21 April 2021	Cincinnati/Northern Kentucky I, US	daily snowfall	6.1 cm (2.4 in)	6.1 cm (2.4 in)	72 years	58 of 100 (Notable)
21 April 2021	Van Wert 1 S, US	daily snowfall	10.2 cm (4.0 in)	8.9 cm (3.5 in)	127 years	57 of 100 (Notable)
21 April 2021	Repvag, NO	daily rain	31.3 mm (1.2 in)	24.7 mm (1.0 in)	36 years	56 of 100 (Notable)
21 April 2021	Hartford City 4 ESE, US	daily snowfall	11.2 cm (4.4 in)	11.2 cm (4.4 in)	60 years	56 of 100 (Notable)
21 April 2021	Chardon, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	75 years	56 of 100 (Notable)
21 April 2021	Mansfield Lahm Rgnl AP, US	daily snow depth	13.0 cm (5.1 in)	13.0 cm (5.1 in)	72 years	56 of 100 (Notable)
21 April 2021	Ganca, AZ	monthly high min	18.2 C (64.8 F)	1.7 C (3.1 F)	105 years	55 of 100 (Notable)
21 April 2021	Low Holm Station, AU	daily rain	71.8 mm (2.8 in)	37.2 mm (1.5 in)	47 years	55 of 100 (Notable)
21 April 2021	Greenfield, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	116 years	55 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

1793 to 2021

Records set or tied on this calendar date in each year from 1793 to 2021. 2021 had 1,608 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	887
2024	754
2025	506
2026	853

Download the Data

Data for records on 2021-04-21: 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 2026-10-15 (15 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 50	1,232
50 to 100	99
100 to 150	21
150 to 200	2
200 to 250	1