Weather Records on 21 February 1947

458 weather records were set or tied worldwide on 21 February 1947. Highest significance: Rocky Mt, US.

Key Facts for 21 February 1947

On 21 February 1947, 458 weather records were set or tied at long-record stations worldwide.
73 were record highs and 104 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 447 daily.
Rocky Mt set a monthly record daily precipitation of 146.1 mm (5.8 in) on 21 February 1947.
Across 164 earlier years (1795 to 2026) the same calendar date averaged 501 records.

Record Map

458 stations

458 station records on 21 February 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 February 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rocky Mt	United States	Record daily precipitation	146.1 mm (5.8 in)	58 of 100 (Notable)
Riverton	United States	Record daily precipitation	39.9 mm (1.6 in)	57 of 100 (Notable)
Johnstown	United States	Record daily snowfall	40.6 cm (16.0 in)	53 of 100 (Notable)
Lebanon 3 W	United States	Record daily snowfall	35.6 cm (14.0 in)	52 of 100 (Notable)
Freehold-Marlboro	United States	Record daily snowfall	21.1 cm (8.3 in)	50 of 100 (Notable)
State College	United States	Record daily snowfall	29.2 cm (11.5 in)	49 of 100 (Notable)
Mt Airy 2 W	United States	Record snow depth	12.7 cm (5.0 in)	48 of 100 (Notable)
Queenstown	South Africa	Record daily precipitation	52.6 mm (2.1 in)	46 of 100 (Notable)
Innamincka Police Camp	Australia	Record daily precipitation	41.1 mm (1.6 in)	45 of 100 (Notable)
Cabrobo	Brazil	Record daily precipitation	72.5 mm (2.9 in)	41 of 100 (Notable)
Goderich	Canada	Record daily snowfall	12.7 cm (5.0 in)	41 of 100 (Notable)
Holtwood	United States	Record daily precipitation	43.2 mm (1.7 in)	40 of 100 (Notable)
Paulo Afonso	Brazil	Record daily precipitation	62.8 mm (2.5 in)	39 of 100 (Notable)
Great Falls	United States	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Fulham Park	Australia	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Marshall	United States	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Parnamirim (Leopoldina)	Brazil	Record daily precipitation	106.0 mm (4.2 in)	36 of 100 (Notable)
Tonderburine	Australia	Record daily precipitation	35.6 mm (1.4 in)	35 of 100 (Notable)
Wanaaring Post Office	Australia	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Roxbury	United States	Record daily snowfall	22.9 cm (9.0 in)	34 of 100 (Routine)
Columbia 2SSE	United States	Record daily precipitation	32.8 mm (1.3 in)	34 of 100 (Routine)
Paratinga	Brazil	Record daily precipitation	51.3 mm (2.0 in)	33 of 100 (Routine)
Paripiranga	Brazil	Record daily precipitation	35.5 mm (1.4 in)	33 of 100 (Routine)
Sussex 1 NW	United States	Record daily snowfall	45.7 cm (18.0 in)	32 of 100 (Routine)
Lake Megantic	Canada	Record daily snowfall	30.5 cm (12.0 in)	31 of 100 (Routine)
Satyamangalam	India	Record daily precipitation	28.2 mm (1.1 in)	31 of 100 (Routine)
Sussex 1 NW	United States	Record daily precipitation	38.1 mm (1.5 in)	31 of 100 (Routine)
Warsaw 2 NW	United States	Record daily precipitation	36.3 mm (1.4 in)	31 of 100 (Routine)
Teryawynia	Australia	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Beauceville	Canada	Record daily snowfall	28.2 cm (11.1 in)	30 of 100 (Routine)
Lake Megantic	Canada	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Faerder Fyr	Norway	Record low minimum temperature	-14.2 C (6.4 F)	30 of 100 (Routine)
Val (Sar)	South Africa	Record daily precipitation	61.5 mm (2.4 in)	30 of 100 (Routine)
Bridgeport	United States	Record daily snowfall	27.9 cm (11.0 in)	30 of 100 (Routine)
George School	United States	Record daily precipitation	28.7 mm (1.1 in)	30 of 100 (Routine)
White Cliffs (Tongo)	Australia	Record daily precipitation	61.0 mm (2.4 in)	29 of 100 (Routine)
Bathurst	Canada	Record daily precipitation	25.4 mm (1.0 in)	29 of 100 (Routine)
Bathurst	Canada	Record daily snowfall	25.4 cm (10.0 in)	29 of 100 (Routine)
Fogo	Canada	Record high minimum temperature	0.6 C (33.1 F)	29 of 100 (Routine)
Marion 1 N	United States	Record daily precipitation	76.2 mm (3.0 in)	29 of 100 (Routine)
Beulah	Australia	Record daily precipitation	45.0 mm (1.8 in)	28 of 100 (Routine)
Sousa	Brazil	Record daily precipitation	62.2 mm (2.4 in)	28 of 100 (Routine)
Beauceville	Canada	Record daily precipitation	28.2 mm (1.1 in)	28 of 100 (Routine)
Oxford	United Kingdom	Record low maximum temperature	-1.1 C (30.0 F)	28 of 100 (Routine)
Oakland 1 SE	United States	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Concord	United States	Record daily snowfall	29.2 cm (11.5 in)	28 of 100 (Routine)
Hot Springs 2	United States	Record daily snowfall	7.6 cm (3.0 in)	28 of 100 (Routine)
Newark Liberty Intl AP	United States	Record snow depth	27.9 cm (11.0 in)	28 of 100 (Routine)
Fredericton Unb	Canada	Record daily snowfall	13.2 cm (5.2 in)	27 of 100 (Routine)
Cet Central England	United Kingdom	Record low maximum temperature	-0.8 C (30.6 F)	27 of 100 (Routine)
Moorestown 4 E	United States	Record snow depth	22.9 cm (9.0 in)	26 of 100 (Routine)
Montrose	United States	Record daily snowfall	27.9 cm (11.0 in)	26 of 100 (Routine)
Pottstown	United States	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Bridgeton 1 NE	United States	Record daily snowfall	8.4 cm (3.3 in)	25 of 100 (Routine)
Mt Wx	United States	Record daily snowfall	34.3 cm (13.5 in)	25 of 100 (Routine)
Junqueiro	Brazil	Record daily precipitation	37.4 mm (1.5 in)	24 of 100 (Routine)
Layton 3 NW	United States	Record daily snowfall	31.2 cm (12.3 in)	24 of 100 (Routine)
Keremeos	Canada	Record high minimum temperature	3.9 C (39.0 F)	23 of 100 (Routine)
Somerville 4 NW	United States	Record daily snowfall	22.9 cm (9.0 in)	23 of 100 (Routine)
Jefferson 2 E	United States	Record daily snowfall	10.2 cm (4.0 in)	23 of 100 (Routine)

Counts by Type and Timescale

458 records

Records set or tied on 21 February 1947 by type: Highest daily maximum 36, Lowest daily maximum 70, Highest daily minimum 37, Lowest daily minimum 34, Heaviest daily rainfall 198, Heaviest daily snowfall 62, Deepest snow cover 21.

Records on 21 February 1947 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	70
Highest daily minimum	37
Lowest daily minimum	34
Heaviest daily rainfall	198
Heaviest daily snowfall	62
Deepest snow cover	21

Records on 21 February 1947 by timescale: all-time 1, monthly 10, daily 447.

How Much Records Were Beaten By

388 broken records

Margins by which the 388 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 304.0. Ties are not counted.

Top 20 by Significance

21 February 1947

Top 20 records on 21 February 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 February 1947	Rocky Mt, US	monthly rain	146.1 mm (5.8 in)	44.5 mm (1.8 in)	27 years	58 of 100 (Notable)
21 February 1947	Riverton, US	daily rain	39.9 mm (1.6 in)	35.6 mm (1.4 in)	44 years	57 of 100 (Notable)
21 February 1947	Johnstown, US	daily snowfall	40.6 cm (16.0 in)	30.4 cm (12.0 in)	28 years	53 of 100 (Notable)
21 February 1947	Lebanon 3 W, US	daily snowfall	35.6 cm (14.0 in)	21.1 cm (8.3 in)	44 years	52 of 100 (Notable)
21 February 1947	Freehold-Marlboro, US	daily snowfall	21.1 cm (8.3 in)	19.8 cm (7.8 in)	65 years	50 of 100 (Notable)
21 February 1947	State College, US	daily snowfall	29.2 cm (11.5 in)	18.3 cm (7.2 in)	44 years	49 of 100 (Notable)
21 February 1947	Mt Airy 2 W, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	53 years	48 of 100 (Notable)
21 February 1947	Queenstown, ZA	daily rain	52.6 mm (2.1 in)	31.3 mm (1.2 in)	37 years	46 of 100 (Notable)
21 February 1947	Innamincka Police Camp, AU	daily rain	41.1 mm (1.6 in)	34.7 mm (1.4 in)	40 years	45 of 100 (Notable)
21 February 1947	Cabrobo, BR	daily rain	72.5 mm (2.9 in)	55.0 mm (2.2 in)	27 years	41 of 100 (Notable)
21 February 1947	Goderich, CA	daily snowfall	12.7 cm (5.0 in)	5.1 cm (2.0 in)	77 years	41 of 100 (Notable)
21 February 1947	Holtwood, US	daily rain	43.2 mm (1.7 in)	28.0 mm (1.1 in)	17 years	40 of 100 (Notable)
21 February 1947	Paulo Afonso, BR	daily rain	62.8 mm (2.5 in)	49.8 mm (2.0 in)	16 years	39 of 100 (Notable)
21 February 1947	Great Falls, US	daily rain	27.9 mm (1.1 in)	16.0 mm (0.6 in)	48 years	38 of 100 (Notable)
21 February 1947	Fulham Park, AU	daily rain	30.5 mm (1.2 in)	24.1 mm (0.9 in)	52 years	37 of 100 (Notable)
21 February 1947	Marshall, US	daily snowfall	10.2 cm (4.0 in)	9.4 cm (3.7 in)	40 years	37 of 100 (Notable)
21 February 1947	Parnamirim (Leopoldina), BR	monthly rain	106.0 mm (4.2 in)	23.7 mm (0.9 in)	24 years	36 of 100 (Notable)
21 February 1947	Tonderburine, AU	daily rain	35.6 mm (1.4 in)	26.5 mm (1.0 in)	47 years	35 of 100 (Notable)
21 February 1947	Wanaaring Post Office, AU	daily rain	35.6 mm (1.4 in)	23.9 mm (0.9 in)	36 years	34 of 100 (Routine)
21 February 1947	Roxbury, US	daily snowfall	22.9 cm (9.0 in)	17.8 cm (7.0 in)	0 years	34 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

1795 to 1947

Records set or tied on this calendar date in each year from 1795 to 1947. 1947 had 458 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 1947-02-21: 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 2026-10-14 (14 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	347
50 to 100	24
100 to 150	9
150 to 200	6
200 to 250	1
250 to 300	0
300 to 350	1