Weather Records on 22 April 1971

420 weather records were set or tied worldwide on 22 April 1971. Highest significance: Chasm Falls, US.

Key Facts for 22 April 1971

On 22 April 1971, 420 weather records were set or tied at long-record stations worldwide.
58 were record highs and 109 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 5 monthly and 414 daily.
Chasm Falls set a daily record snow depth of 76.2 cm (30.0 in) on 22 April 1971.
Across 164 earlier years (1800 to 2026) the same calendar date averaged 445 records.

Record Map

420 stations

420 station records on 22 April 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 April 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chasm Falls	United States	Record snow depth	76.2 cm (30.0 in)	56 of 100 (Notable)
Barcelona -Fabra Observatory	Spain	Record daily precipitation	62.7 mm (2.5 in)	52 of 100 (Notable)
Mistassini Post	Canada	Record daily snowfall	17.8 cm (7.0 in)	51 of 100 (Notable)
Kassler	United States	Record daily precipitation	55.9 mm (2.2 in)	51 of 100 (Notable)
Blackwell 1 W	United States	Record daily precipitation	78.5 mm (3.1 in)	50 of 100 (Notable)
Zaragoza Aeropuerto	Spain	Record daily precipitation	36.1 mm (1.4 in)	49 of 100 (Notable)
Oberlin	United States	Record daily precipitation	39.6 mm (1.6 in)	45 of 100 (Notable)
Makaweli 965	United States	Record daily precipitation	46.2 mm (1.8 in)	45 of 100 (Notable)
Daroca	Spain	Record daily precipitation	44.6 mm (1.8 in)	44 of 100 (Notable)
Kauffman 4 SSE	United States	Record daily precipitation	39.9 mm (1.6 in)	43 of 100 (Notable)
Boulder	United States	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Byers 5 ENE	United States	Record daily precipitation	34.5 mm (1.4 in)	40 of 100 (Notable)
Sao Jose de Piranhas	Brazil	Record daily precipitation	80.3 mm (3.2 in)	39 of 100 (Notable)
Avare	Brazil	Record daily precipitation	45.9 mm (1.8 in)	38 of 100 (Notable)
Santa Rita de Cassia	Brazil	Record daily precipitation	47.8 mm (1.9 in)	38 of 100 (Notable)
Smoko	Australia	Record daily precipitation	86.4 mm (3.4 in)	37 of 100 (Notable)
Gunnison 3SW	United States	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Espoey	France	Record daily precipitation	43.6 mm (1.7 in)	36 of 100 (Notable)
Fleming	United States	Record daily precipitation	27.2 mm (1.1 in)	36 of 100 (Notable)
Morgantown Muni AP	United States	Record low maximum temperature	8.9 C (48.0 F)	36 of 100 (Notable)
Horto Florestal	Brazil	Record daily precipitation	29.6 mm (1.2 in)	33 of 100 (Routine)
Catole	Brazil	Record daily precipitation	74.1 mm (2.9 in)	33 of 100 (Routine)
Albacete Los Llanos	Spain	Record daily precipitation	34.1 mm (1.3 in)	33 of 100 (Routine)
Ft Lupton 2 SE	United States	Record daily precipitation	27.4 mm (1.1 in)	33 of 100 (Routine)
Windsor	United States	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Burketown Post Office	Australia	Record low maximum temperature	26.7 C (80.1 F)	32 of 100 (Routine)
Bailey	United States	Record daily precipitation	36.6 mm (1.4 in)	32 of 100 (Routine)
Parker 6 E	United States	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Utica	United States	Record daily precipitation	44.5 mm (1.8 in)	32 of 100 (Routine)
Cheesman	United States	Record daily precipitation	32.3 mm (1.3 in)	31 of 100 (Routine)
Idaho Springs	United States	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Clohesy River	Australia	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Jardim	Brazil	Record daily precipitation	67.4 mm (2.7 in)	29 of 100 (Routine)
Carrollton Lock 1	United States	Record daily precipitation	46.2 mm (1.8 in)	29 of 100 (Routine)
Saint Paul Is AP	United States	Record low minimum temperature	-15.6 C (3.9 F)	29 of 100 (Routine)
Cesario Lange	Brazil	Record daily precipitation	37.7 mm (1.5 in)	28 of 100 (Routine)
Aracatiacu	Brazil	Record daily precipitation	33.1 mm (1.3 in)	28 of 100 (Routine)
Swan Island Lighthouse	Australia	Record daily precipitation	27.2 mm (1.1 in)	27 of 100 (Routine)
Pte de la Hague	France	Record high maximum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Markovo	Russia	Record low maximum temperature	-15.2 C (4.6 F)	27 of 100 (Routine)
Valencia	Spain	Record daily precipitation	26.9 mm (1.1 in)	27 of 100 (Routine)
Hawthorne	United States	Record daily precipitation	37.6 mm (1.5 in)	27 of 100 (Routine)
Serrita (Serrinha)	Brazil	Record daily precipitation	69.4 mm (2.7 in)	26 of 100 (Routine)
Port Aux Basques	Canada	Record daily precipitation	26.9 mm (1.1 in)	26 of 100 (Routine)
Georgetown	United States	Record daily snowfall	26.2 cm (10.3 in)	26 of 100 (Routine)
Monroe Lock 4	United States	Record daily precipitation	49.0 mm (1.9 in)	26 of 100 (Routine)
Progresso	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Arrozeira	Brazil	Record daily precipitation	32.2 mm (1.3 in)	25 of 100 (Routine)
Lemon Cove	United States	Record low minimum temperature	1.1 C (34.0 F)	25 of 100 (Routine)
Antioch	United States	Record low minimum temperature	-2.2 C (28.0 F)	25 of 100 (Routine)
Donaldsonville 4 SW	United States	Record high minimum temperature	23.3 C (73.9 F)	25 of 100 (Routine)
Hill City Muni AP	United States	Record daily precipitation	57.4 mm (2.3 in)	25 of 100 (Routine)
Chamberlain	United States	Record daily precipitation	74.2 mm (2.9 in)	24 of 100 (Routine)
Praia Grande (Parana)	Brazil	Record daily precipitation	36.2 mm (1.4 in)	23 of 100 (Routine)
Ribeira	Brazil	Record daily precipitation	35.6 mm (1.4 in)	23 of 100 (Routine)
Mahackala	Russia	Record low maximum temperature	9.2 C (48.6 F)	23 of 100 (Routine)
Ponca City	United States	Record daily precipitation	53.3 mm (2.1 in)	23 of 100 (Routine)
Araraquara	Brazil	Record daily precipitation	32.5 mm (1.3 in)	22 of 100 (Routine)
Weissenburg	Germany	Record high minimum temperature	11.5 C (52.7 F)	22 of 100 (Routine)
Aspen	United States	Record daily snowfall	16.0 cm (6.3 in)	22 of 100 (Routine)

Counts by Type and Timescale

420 records

Records set or tied on 22 April 1971 by type: Highest daily maximum 21, Lowest daily maximum 52, Highest daily minimum 37, Lowest daily minimum 57, Heaviest daily rainfall 222, Heaviest daily snowfall 20, Deepest snow cover 11.

Records on 22 April 1971 by type
Record type	Records
Highest daily maximum	21
Lowest daily maximum	52
Highest daily minimum	37
Lowest daily minimum	57
Heaviest daily rainfall	222
Heaviest daily snowfall	20
Deepest snow cover	11

Records on 22 April 1971 by timescale: all-time 1, monthly 5, daily 414.

How Much Records Were Beaten By

359 broken records

Margins by which the 359 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 660.0. Ties are not counted.

Top 20 by Significance

22 April 1971

Top 20 records on 22 April 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 April 1971	Chasm Falls, US	daily snow depth	76.2 cm (30.0 in)	66.0 cm (26.0 in)	40 years	56 of 100 (Notable)
22 April 1971	Barcelona -Fabra Observatory, ES	daily rain	62.7 mm (2.5 in)	43.5 mm (1.7 in)	24 years	52 of 100 (Notable)
22 April 1971	Mistassini Post, CA	daily snowfall	17.8 cm (7.0 in)	14.0 cm (5.5 in)	32 years	51 of 100 (Notable)
22 April 1971	Kassler, US	daily rain	55.9 mm (2.2 in)	40.9 mm (1.6 in)	26 years	51 of 100 (Notable)
22 April 1971	Blackwell 1 W, US	daily rain	78.5 mm (3.1 in)	44.2 mm (1.7 in)	42 years	50 of 100 (Notable)
22 April 1971	Zaragoza Aeropuerto, ES	daily rain	36.1 mm (1.4 in)	30.9 mm (1.2 in)	21 years	49 of 100 (Notable)
22 April 1971	Oberlin, US	daily rain	39.6 mm (1.6 in)	20.0 mm (0.8 in)	57 years	45 of 100 (Notable)
22 April 1971	Makaweli 965, US	daily rain	46.2 mm (1.8 in)	38.1 mm (1.5 in)	38 years	45 of 100 (Notable)
22 April 1971	Daroca, ES	monthly rain	44.6 mm (1.8 in)	8.2 mm (0.32 in)	45 years	44 of 100 (Notable)
22 April 1971	Kauffman 4 SSE, US	daily rain	39.9 mm (1.6 in)	30.5 mm (1.2 in)	0 years	43 of 100 (Notable)
22 April 1971	Boulder, US	daily rain	41.9 mm (1.6 in)	20.3 mm (0.8 in)	48 years	40 of 100 (Notable)
22 April 1971	Byers 5 ENE, US	daily rain	34.5 mm (1.4 in)	26.9 mm (1.1 in)	26 years	40 of 100 (Notable)
22 April 1971	Sao Jose de Piranhas, BR	daily rain	80.3 mm (3.2 in)	32.8 mm (1.3 in)	48 years	39 of 100 (Notable)
22 April 1971	Avare, BR	daily rain	45.9 mm (1.8 in)	45.2 mm (1.8 in)	9 years	38 of 100 (Notable)
22 April 1971	Santa Rita de Cassia, BR	daily rain	47.8 mm (1.9 in)	26.0 mm (1.0 in)	49 years	38 of 100 (Notable)
22 April 1971	Smoko, AU	daily rain	86.4 mm (3.4 in)	42.5 mm (1.7 in)	10 years	37 of 100 (Notable)
22 April 1971	Gunnison 3SW, US	daily snowfall	10.2 cm (4.0 in)	4.4 cm (1.7 in)	68 years	37 of 100 (Notable)
22 April 1971	Espoey, FR	daily rain	43.6 mm (1.7 in)	20.4 mm (0.8 in)	36 years	36 of 100 (Notable)
22 April 1971	Fleming, US	daily rain	27.2 mm (1.1 in)	16.5 mm (0.6 in)	26 years	36 of 100 (Notable)
22 April 1971	Morgantown Muni AP, US	daily low max	8.9 C (48.0 F)	1.1 C (2.0 F)	88 years	36 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

1800 to 1971

Records set or tied on this calendar date in each year from 1800 to 1971. 1971 had 420 records.

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

Records on 04-22 in each year
Year	Records
1800	1
1815	1
1817	1
1838	1
1842	1
1846	1
1849	1
1851	1
1852	2
1854	2
1855	2
1857	1
1861	1
1862	1
1864	1
1865	2
1868	1
1872	2
1873	1
1874	2
1875	1
1877	1
1879	1
1880	1
1881	1
1883	1
1884	3
1885	3
1888	4
1890	1
1891	1
1892	2
1893	2
1895	4
1896	1
1897	1
1898	4
1899	3
1900	4
1901	26
1902	13
1903	9
1904	6
1905	8
1906	11
1907	12
1908	14
1909	25
1910	27
1911	29
1912	35
1913	22
1914	79
1915	14
1916	56
1917	29
1918	63
1919	45
1920	55
1921	75
1922	81
1923	119
1924	132
1925	421
1926	148
1927	547
1928	380
1929	194
1930	207
1931	561
1932	266
1933	189
1934	340
1935	298
1936	543
1937	368
1938	243
1939	210
1940	434
1941	287
1942	286
1943	519
1944	565
1945	250
1946	555
1947	552
1948	454
1949	377
1950	584
1951	556
1952	636
1953	384
1954	545
1955	783
1956	249
1957	705
1958	411
1959	412
1960	1,107
1961	492
1962	329
1963	887
1964	1,109
1965	512
1966	534
1967	1,227
1968	870
1969	500
1970	1,048
1971	420
1972	780
1973	850
1974	647
1975	390
1976	363
1977	818
1978	765
1979	430
1980	1,632
1981	959
1982	1,073
1983	938
1984	1,128
1985	1,426
1986	1,381
1987	1,054
1988	971
1989	1,467
1990	815
1991	1,272
1992	1,155
1993	1,327
1994	812
1995	1,129
1996	1,051
1997	975
1998	1,174
1999	941
2000	1,202
2001	1,325
2002	1,406
2003	529
2004	647
2005	666
2006	797
2007	650
2008	844
2009	959
2010	902
2011	1,017
2012	1,212
2013	985
2014	437
2015	529
2016	593
2017	470
2018	688
2019	498
2020	598
2021	1,320
2022	505
2023	539
2024	663
2025	403
2026	727

Download the Data

Data for records on 1971-04-22: 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 100	354
100 to 200	4
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	1