Weather Records on 21 February 1957

709 weather records were set or tied worldwide on 21 February 1957. Highest significance: Koup (Sar), ZA.

Key Facts for 21 February 1957

On 21 February 1957, 709 weather records were set or tied at long-record stations worldwide.
79 were record highs and 336 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 8 monthly and 700 daily.
Koup (Sar) set a monthly record daily precipitation of 72.0 mm (2.8 in) on 21 February 1957.
Across 164 earlier years (1795 to 2026) the same calendar date averaged 500 records.

Record Map

709 stations

709 station records on 21 February 1957 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 February 1957: highest significance records shown on the map
Station	Country	Type	Value	Significance
Koup (Sar)	South Africa	Record daily precipitation	72.0 mm (2.8 in)	68 of 100 (Major)
Middleton (Sar)	South Africa	Record daily precipitation	58.5 mm (2.3 in)	57 of 100 (Notable)
Superior	United States	Record daily snowfall	16.5 cm (6.5 in)	56 of 100 (Notable)
Peddie (Mag)	South Africa	Record daily precipitation	48.0 mm (1.9 in)	55 of 100 (Notable)
Adelaide (Pol)	South Africa	Record daily precipitation	69.5 mm (2.7 in)	55 of 100 (Notable)
Opsoek (Pos)	South Africa	Record daily precipitation	77.0 mm (3.0 in)	54 of 100 (Notable)
Albertvale	South Africa	Record daily precipitation	83.0 mm (3.3 in)	54 of 100 (Notable)
Alicedale	South Africa	Record daily precipitation	71.0 mm (2.8 in)	50 of 100 (Notable)
Oukraal	South Africa	Record daily precipitation	61.9 mm (2.4 in)	46 of 100 (Notable)
La Delle 7 NE	United States	Record daily snowfall	20.3 cm (8.0 in)	46 of 100 (Notable)
Laborare	South Africa	Record daily precipitation	61.0 mm (2.4 in)	45 of 100 (Notable)
Tulbagh (Pol)	South Africa	Record daily precipitation	27.0 mm (1.1 in)	44 of 100 (Notable)
Middelpos (Pol)	South Africa	Record daily precipitation	49.0 mm (1.9 in)	43 of 100 (Notable)
Pomeroy	United States	Record low minimum temperature	-19.4 C (-2.9 F)	43 of 100 (Notable)
Clark	United States	Record daily snowfall	17.8 cm (7.0 in)	42 of 100 (Notable)
Table.Mtn Woodhead Tunnel	South Africa	Record daily precipitation	34.1 mm (1.3 in)	41 of 100 (Notable)
The Towers	South Africa	Record daily precipitation	28.5 mm (1.1 in)	41 of 100 (Notable)
Swaelfontein	South Africa	Record daily precipitation	68.0 mm (2.7 in)	40 of 100 (Notable)
De Smet	United States	Record daily snowfall	15.2 cm (6.0 in)	40 of 100 (Notable)
Konni	India	Record daily precipitation	72.4 mm (2.9 in)	39 of 100 (Notable)
Rock Rapids	United States	Record daily snowfall	11.4 cm (4.5 in)	39 of 100 (Notable)
Calitzdorp Pol	South Africa	Record daily precipitation	35.0 mm (1.4 in)	38 of 100 (Notable)
Sandy Lake Dam Libby	United States	Record daily snowfall	17.8 cm (7.0 in)	38 of 100 (Notable)
Pilot Rock 1 SE	United States	Record low minimum temperature	-20.6 C (-5.1 F)	38 of 100 (Notable)
Karimganj	India	Record daily precipitation	41.9 mm (1.6 in)	37 of 100 (Notable)
Robben Island (Vrt)	South Africa	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Le Mars	United States	Record daily snowfall	6.4 cm (2.5 in)	36 of 100 (Notable)
Miller	United States	Record daily snowfall	10.9 cm (4.3 in)	36 of 100 (Notable)
Akron	United States	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Ft Ripley	United States	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Cottonwood 2 E	United States	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Malmesbury	South Africa	Record daily precipitation	25.5 mm (1.0 in)	34 of 100 (Routine)
Winterhoek	South Africa	Record daily precipitation	39.4 mm (1.6 in)	33 of 100 (Routine)
Parysfontein	South Africa	Record daily precipitation	36.5 mm (1.4 in)	33 of 100 (Routine)
Collegeville St John's	United States	Record daily snowfall	15.2 cm (6.0 in)	33 of 100 (Routine)
Maple Plain	United States	Record daily snowfall	15.2 cm (6.0 in)	33 of 100 (Routine)
Snake Rvr	United States	Record daily snowfall	25.4 cm (10.0 in)	33 of 100 (Routine)
Millungera Station	Australia	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Laingsburg	South Africa	Record daily precipitation	34.0 mm (1.3 in)	32 of 100 (Routine)
Hawarden	United States	Record daily snowfall	12.7 cm (5.0 in)	32 of 100 (Routine)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	90.2 mm (3.6 in)	31 of 100 (Routine)
Pomeroy	United States	Record low maximum temperature	-3.9 C (25.0 F)	31 of 100 (Routine)
Kluitjeskraal (Bos)	South Africa	Record daily precipitation	26.6 mm (1.0 in)	30 of 100 (Routine)
Vredenburg (Pol)	South Africa	Record daily precipitation	36.0 mm (1.4 in)	30 of 100 (Routine)
Sterling	South Africa	Record daily precipitation	25.5 mm (1.0 in)	30 of 100 (Routine)
Burley	United States	Record daily snowfall	10.2 cm (4.0 in)	30 of 100 (Routine)
Artichoke Lake 1 E	United States	Record daily snowfall	7.6 cm (3.0 in)	30 of 100 (Routine)
Choteau	United States	Record low maximum temperature	-18.9 C (-2.0 F)	30 of 100 (Routine)
Heppner	United States	Record low minimum temperature	-16.7 C (1.9 F)	30 of 100 (Routine)
Huron Rgnl AP	United States	Record daily snowfall	7.1 cm (2.8 in)	30 of 100 (Routine)
Echo	United States	Record low minimum temperature	-13.9 C (7.0 F)	29 of 100 (Routine)
Castlewood	United States	Record daily snowfall	15.2 cm (6.0 in)	29 of 100 (Routine)
Davenport	United States	Record low maximum temperature	-6.7 C (19.9 F)	29 of 100 (Routine)
Rest Lake	United States	Record daily snowfall	16.3 cm (6.4 in)	29 of 100 (Routine)
Gayndah Post Office	Australia	Record high minimum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Medicine Hat A	Canada	Record low maximum temperature	-24.4 C (-11.9 F)	28 of 100 (Routine)
Alliance 1WNW	United States	Record daily snowfall	5.1 cm (2.0 in)	28 of 100 (Routine)
Quatsino	Canada	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Syktyvkar	Russia	Record high minimum temperature	-1.5 C (29.3 F)	27 of 100 (Routine)
Dwars-In-Die-Weg	South Africa	Record daily precipitation	44.0 mm (1.7 in)	27 of 100 (Routine)

Counts by Type and Timescale

709 records

Records set or tied on 21 February 1957 by type: Highest daily maximum 19, Lowest daily maximum 199, Highest daily minimum 60, Lowest daily minimum 137, Heaviest daily rainfall 208, Heaviest daily snowfall 81, Deepest snow cover 5.

Records on 21 February 1957 by type
Record type	Records
Highest daily maximum	19
Lowest daily maximum	199
Highest daily minimum	60
Lowest daily minimum	137
Heaviest daily rainfall	208
Heaviest daily snowfall	81
Deepest snow cover	5

Records on 21 February 1957 by timescale: all-time 1, monthly 8, daily 700.

How Much Records Were Beaten By

600 broken records

Margins by which the 600 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 200.0. Ties are not counted.

Top 20 by Significance

21 February 1957

Top 20 records on 21 February 1957 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 February 1957	Koup (Sar), ZA	monthly rain	72.0 mm (2.8 in)	33.9 mm (1.3 in)	53 years	68 of 100 (Major)
21 February 1957	Middleton (Sar), ZA	daily rain	58.5 mm (2.3 in)	33.4 mm (1.3 in)	61 years	57 of 100 (Notable)
21 February 1957	Superior, US	daily snowfall	16.5 cm (6.5 in)	14.5 cm (5.7 in)	40 years	56 of 100 (Notable)
21 February 1957	Peddie (Mag), ZA	daily rain	48.0 mm (1.9 in)	28.2 mm (1.1 in)	66 years	55 of 100 (Notable)
21 February 1957	Adelaide (Pol), ZA	daily rain	69.5 mm (2.7 in)	45.9 mm (1.8 in)	33 years	55 of 100 (Notable)
21 February 1957	Opsoek (Pos), ZA	monthly rain	77.0 mm (3.0 in)	49.8 mm (2.0 in)	3 years	54 of 100 (Notable)
21 February 1957	Albertvale, ZA	daily rain	83.0 mm (3.3 in)	65.7 mm (2.6 in)	33 years	54 of 100 (Notable)
21 February 1957	Alicedale, ZA	daily rain	71.0 mm (2.8 in)	48.6 mm (1.9 in)	9 years	50 of 100 (Notable)
21 February 1957	Oukraal, ZA	daily rain	61.9 mm (2.4 in)	52.8 mm (2.1 in)	12 years	46 of 100 (Notable)
21 February 1957	La Delle 7 NE, US	daily snowfall	20.3 cm (8.0 in)	12.7 cm (5.0 in)	44 years	46 of 100 (Notable)
21 February 1957	Laborare, ZA	monthly rain	61.0 mm (2.4 in)	16.5 mm (0.6 in)	36 years	45 of 100 (Notable)
21 February 1957	Tulbagh (Pol), ZA	daily rain	27.0 mm (1.1 in)	22.7 mm (0.9 in)	48 years	44 of 100 (Notable)
21 February 1957	Middelpos (Pol), ZA	daily rain	49.0 mm (1.9 in)	19.8 mm (0.8 in)	48 years	43 of 100 (Notable)
21 February 1957	Pomeroy, US	daily low min	-19.4 C (-2.9 F)	11.1 C (20.0 F)	62 years	43 of 100 (Notable)
21 February 1957	Clark, US	daily snowfall	17.8 cm (7.0 in)	10.2 cm (4.0 in)	44 years	42 of 100 (Notable)
21 February 1957	Table.Mtn Woodhead Tunnel, ZA	daily rain	34.1 mm (1.3 in)	19.4 mm (0.8 in)	43 years	41 of 100 (Notable)
21 February 1957	The Towers, ZA	daily rain	28.5 mm (1.1 in)	11.7 mm (0.5 in)	62 years	41 of 100 (Notable)
21 February 1957	Swaelfontein, ZA	all-time rain	68.0 mm (2.7 in)	4.5 mm (0.18 in)	37 years	40 of 100 (Notable)
21 February 1957	De Smet, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	37 years	40 of 100 (Notable)
21 February 1957	Konni, IN	daily rain	72.4 mm (2.9 in)	39.4 mm (1.6 in)	30 years	39 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

1795 to 1957

Records set or tied on this calendar date in each year from 1795 to 1957. 1957 had 709 records.

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

Records on 02-21 in each year
Year	Records
1795	1
1804	1
1810	3
1814	3
1838	1
1845	1
1846	2
1847	1
1849	2
1850	1
1851	1
1855	1
1856	1
1860	1
1861	1
1862	2
1870	2
1875	2
1876	1
1879	1
1880	2
1881	1
1882	1
1883	1
1884	1
1885	1
1886	3
1888	2
1889	4
1890	2
1891	1
1893	9
1894	2
1895	2
1896	1
1897	5
1898	14
1899	3
1900	1
1901	11
1902	8
1903	13
1904	12
1905	6
1906	51
1907	18
1908	12
1909	28
1910	26
1911	24
1912	26
1913	29
1914	25
1915	52
1916	82
1917	415
1918	80
1919	47
1920	23
1921	96
1922	157
1923	40
1924	84
1925	209
1926	101
1927	191
1928	81
1929	403
1930	1,334
1931	197
1932	159
1933	229
1934	423
1935	300
1936	617
1937	699
1938	181
1939	586
1940	159
1941	224
1942	552
1943	460
1944	313
1945	621
1946	149
1947	458
1948	511
1949	889
1950	492
1951	573
1952	356
1953	1,238
1954	958
1955	857
1956	460
1957	709
1958	993
1959	383
1960	493
1961	831
1962	590
1963	1,022
1964	357
1965	275
1966	574
1967	312
1968	1,177
1969	658
1970	545
1971	787
1972	717
1973	790
1974	634
1975	655
1976	845
1977	1,362
1978	1,382
1979	1,212
1980	837
1981	1,600
1982	1,074
1983	608
1984	518
1985	837
1986	1,341
1987	658
1988	633
1989	866
1990	1,971
1991	680
1992	418
1993	1,540
1994	980
1995	1,267
1996	1,742
1997	1,806
1998	1,100
1999	552
2000	812
2001	583
2002	934
2003	1,253
2004	629
2005	840
2006	801
2007	747
2008	1,131
2009	622
2010	1,156
2011	1,379
2012	540
2013	845
2014	881
2015	1,773
2016	1,151
2017	1,828
2018	2,891
2019	1,330
2020	547
2021	878
2022	734
2023	677
2024	647
2025	1,776
2026	552

Download the Data

Data for records on 1957-02-21: 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 25	526
25 to 50	35
50 to 75	18
75 to 100	9
100 to 125	7
125 to 150	4
150 to 175	0
175 to 200	1