Weather Records on 11 April 1971

495 weather records were set or tied worldwide on 11 April 1971. Highest significance: Herberton White St, AU.

Key Facts for 11 April 1971

On 11 April 1971, 495 weather records were set or tied at long-record stations worldwide.
235 were record highs and 95 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 481 daily.
Herberton White St set a daily record precipitation of 80.8 mm (3.2 in) on 11 April 1971.
Across 164 earlier years (1800 to 2026) the same calendar date averaged 481 records.

Record Map

495 stations

495 station records on 11 April 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 April 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Herberton White St	Australia	Record daily precipitation	80.8 mm (3.2 in)	64 of 100 (Major)
Cooktown Post Office	Australia	Record daily precipitation	111.0 mm (4.4 in)	62 of 100 (Major)
Har Kenaan	Israel	Record daily precipitation	77.4 mm (3.0 in)	61 of 100 (Major)
Round Grove	United States	Record snow depth	22.9 cm (9.0 in)	58 of 100 (Notable)
Clohesy River	Australia	Record daily precipitation	115.6 mm (4.6 in)	57 of 100 (Notable)
Gadgarra Forest Reserve	Australia	Record daily precipitation	134.6 mm (5.3 in)	56 of 100 (Notable)
Hambledon Mill Csr	Australia	Record daily precipitation	134.6 mm (5.3 in)	55 of 100 (Notable)
Malanda Post Office	Australia	Record daily precipitation	91.4 mm (3.6 in)	53 of 100 (Notable)
Urandi	Brazil	Record daily precipitation	114.0 mm (4.5 in)	53 of 100 (Notable)
Laura Post Office	Australia	Record daily precipitation	67.6 mm (2.7 in)	52 of 100 (Notable)
Glenlyon Station	Australia	Record daily precipitation	36.8 mm (1.4 in)	52 of 100 (Notable)
Vine Creek	Australia	Record daily precipitation	130.6 mm (5.1 in)	51 of 100 (Notable)
Musgrave	Australia	Record daily precipitation	136.1 mm (5.4 in)	50 of 100 (Notable)
Shottery	Australia	Record daily precipitation	100.3 mm (3.9 in)	49 of 100 (Notable)
Conceicao da Barra	Brazil	Record daily precipitation	100.0 mm (3.9 in)	49 of 100 (Notable)
Lowville	United States	Record snow depth	30.5 cm (12.0 in)	48 of 100 (Notable)
Kuranda Railway Station	Australia	Record daily precipitation	147.3 mm (5.8 in)	46 of 100 (Notable)
Kirrama Station	Australia	Record daily precipitation	58.7 mm (2.3 in)	46 of 100 (Notable)
Koah	Australia	Record daily precipitation	58.4 mm (2.3 in)	44 of 100 (Notable)
Glenbervie Station	Australia	Record daily precipitation	57.2 mm (2.3 in)	42 of 100 (Notable)
Malhada de Pedras	Brazil	Record daily precipitation	48.5 mm (1.9 in)	41 of 100 (Notable)
Tel Aviv Reading	Israel	Record daily precipitation	36.4 mm (1.4 in)	41 of 100 (Notable)
Chasm Falls	United States	Record snow depth	83.8 cm (33.0 in)	41 of 100 (Notable)
Northfield	United States	Record snow depth	38.1 cm (15.0 in)	41 of 100 (Notable)
Ayton	Australia	Record daily precipitation	88.9 mm (3.5 in)	39 of 100 (Notable)
Patamute	Brazil	Record daily precipitation	53.4 mm (2.1 in)	38 of 100 (Notable)
Acude Varzea da Volta	Brazil	Record daily precipitation	110.2 mm (4.3 in)	37 of 100 (Notable)
Kairi Research Station	Australia	Record daily precipitation	72.6 mm (2.9 in)	36 of 100 (Notable)
Round Grove	United States	Record daily snowfall	22.9 cm (9.0 in)	36 of 100 (Notable)
Low Isles Lighthouse	Australia	Record daily precipitation	56.6 mm (2.2 in)	35 of 100 (Notable)
Moreton Telegraph Station	Australia	Record daily precipitation	30.2 mm (1.2 in)	33 of 100 (Routine)
Carandotta Station	Australia	Record daily precipitation	41.4 mm (1.6 in)	33 of 100 (Routine)
Forest Glen	United States	Record daily precipitation	58.2 mm (2.3 in)	33 of 100 (Routine)
Santa Maria Asuncion Tlaxiaco	Mexico	Record low minimum temperature	-1.1 C (30.0 F)	32 of 100 (Routine)
Richland	United States	Record low minimum temperature	-7.2 C (19.0 F)	32 of 100 (Routine)
Canton 4 SE	United States	Record snow depth	15.2 cm (6.0 in)	32 of 100 (Routine)
Goondi Mill Csr	Australia	Record daily precipitation	116.1 mm (4.6 in)	31 of 100 (Routine)
Nicosia	Cyprus	Record daily precipitation	27.3 mm (1.1 in)	31 of 100 (Routine)
Bayfield 6 N	United States	Record high minimum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Carnaubas	Brazil	Record daily precipitation	97.4 mm (3.8 in)	30 of 100 (Routine)
Machado Portela (Juraci)	Brazil	Record daily precipitation	55.1 mm (2.2 in)	30 of 100 (Routine)
Saint Johns	United States	Record high maximum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Osceola	United States	Record high minimum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Red Oak	United States	Record high minimum temperature	15.0 C (59.0 F)	30 of 100 (Routine)
Winthrop 1 WSW	United States	Record snow depth	30.5 cm (12.0 in)	30 of 100 (Routine)
Santo Antonio	Brazil	Record daily precipitation	57.3 mm (2.3 in)	29 of 100 (Routine)
Pio IX (Patrocinio)	Brazil	Record daily precipitation	46.8 mm (1.8 in)	29 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record low minimum temperature	-1.3 C (29.7 F)	29 of 100 (Routine)
Piaxtla	Mexico	Record low minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Wishek	United States	Record high maximum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Park Rapids Muni AP	United States	Record high minimum temperature	6.7 C (44.1 F)	29 of 100 (Routine)
Atikokan Cli	Canada	Record high minimum temperature	8.3 C (46.9 F)	28 of 100 (Routine)
Beer Sheva	Israel	Record daily precipitation	25.1 mm (1.0 in)	28 of 100 (Routine)
Tombstone	United States	Record high maximum temperature	31.7 C (89.1 F)	28 of 100 (Routine)
Winkelman 6 S	United States	Record high maximum temperature	35.0 C (95.0 F)	28 of 100 (Routine)
Parambu	Brazil	Record daily precipitation	63.5 mm (2.5 in)	27 of 100 (Routine)
Mandiroba (Laranjeiras)	Brazil	Record daily precipitation	58.3 mm (2.3 in)	27 of 100 (Routine)
Ottosdal	South Africa	Record daily precipitation	58.0 mm (2.3 in)	27 of 100 (Routine)
Britt 3E	United States	Record high minimum temperature	11.1 C (52.0 F)	27 of 100 (Routine)
Beaver Is	United States	Record high minimum temperature	6.1 C (43.0 F)	27 of 100 (Routine)

Counts by Type and Timescale

495 records

Records set or tied on 11 April 1971 by type: Highest daily maximum 122, Lowest daily maximum 47, Highest daily minimum 113, Lowest daily minimum 48, Heaviest daily rainfall 129, Heaviest daily snowfall 19, Deepest snow cover 17.

Records on 11 April 1971 by type
Record type	Records
Highest daily maximum	122
Lowest daily maximum	47
Highest daily minimum	113
Lowest daily minimum	48
Heaviest daily rainfall	129
Heaviest daily snowfall	19
Deepest snow cover	17

Records on 11 April 1971 by timescale: all-time 0, monthly 14, daily 481.

How Much Records Were Beaten By

385 broken records

Margins by which the 385 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 559.0. Ties are not counted.

Top 20 by Significance

11 April 1971

Top 20 records on 11 April 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 April 1971	Herberton White St, AU	daily rain	80.8 mm (3.2 in)	59.5 mm (2.3 in)	53 years	64 of 100 (Major)
11 April 1971	Cooktown Post Office, AU	daily rain	111.0 mm (4.4 in)	72.9 mm (2.9 in)	72 years	62 of 100 (Major)
11 April 1971	Har Kenaan, IL	monthly rain	77.4 mm (3.0 in)	44.9 mm (1.8 in)	28 years	61 of 100 (Major)
11 April 1971	Round Grove, US	daily snow depth	22.9 cm (9.0 in)	22.9 cm (9.0 in)	50 years	58 of 100 (Notable)
11 April 1971	Clohesy River, AU	monthly rain	115.6 mm (4.6 in)	36.4 mm (1.4 in)	30 years	57 of 100 (Notable)
11 April 1971	Gadgarra Forest Reserve, AU	daily rain	134.6 mm (5.3 in)	108.4 mm (4.3 in)	37 years	56 of 100 (Notable)
11 April 1971	Hambledon Mill Csr, AU	daily rain	134.6 mm (5.3 in)	104.4 mm (4.1 in)	44 years	55 of 100 (Notable)
11 April 1971	Malanda Post Office, AU	daily rain	91.4 mm (3.6 in)	71.6 mm (2.8 in)	28 years	53 of 100 (Notable)
11 April 1971	Urandi, BR	monthly rain	114.0 mm (4.5 in)	53.1 mm (2.1 in)	26 years	53 of 100 (Notable)
11 April 1971	Laura Post Office, AU	daily rain	67.6 mm (2.7 in)	40.9 mm (1.6 in)	30 years	52 of 100 (Notable)
11 April 1971	Glenlyon Station, AU	daily rain	36.8 mm (1.4 in)	36.0 mm (1.4 in)	56 years	52 of 100 (Notable)
11 April 1971	Vine Creek, AU	daily rain	130.6 mm (5.1 in)	105.2 mm (4.1 in)	28 years	51 of 100 (Notable)
11 April 1971	Musgrave, AU	daily rain	136.1 mm (5.4 in)	76.4 mm (3.0 in)	8 years	50 of 100 (Notable)
11 April 1971	Shottery, AU	daily rain	100.3 mm (3.9 in)	73.6 mm (2.9 in)	13 years	49 of 100 (Notable)
11 April 1971	Conceicao da Barra, BR	daily rain	100.0 mm (3.9 in)	88.1 mm (3.5 in)	16 years	49 of 100 (Notable)
11 April 1971	Lowville, US	daily snow depth	30.5 cm (12.0 in)	17.8 cm (7.0 in)	52 years	48 of 100 (Notable)
11 April 1971	Kuranda Railway Station, AU	daily rain	147.3 mm (5.8 in)	114.3 mm (4.5 in)	45 years	46 of 100 (Notable)
11 April 1971	Kirrama Station, AU	daily rain	58.7 mm (2.3 in)	32.3 mm (1.3 in)	45 years	46 of 100 (Notable)
11 April 1971	Koah, AU	daily rain	58.4 mm (2.3 in)	48.5 mm (1.9 in)	4 years	44 of 100 (Notable)
11 April 1971	Glenbervie Station, AU	daily rain	57.2 mm (2.3 in)	35.6 mm (1.4 in)	38 years	42 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 495 records.

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

Records on 04-11 in each year
Year	Records
1800	1
1803	1
1808	1
1809	1
1812	3
1818	1
1831	1
1832	1
1834	1
1837	1
1845	1
1854	1
1857	1
1863	2
1865	2
1866	1
1868	1
1869	3
1871	1
1874	1
1876	2
1879	2
1880	2
1881	1
1882	2
1885	1
1886	1
1887	2
1888	4
1889	2
1890	2
1891	2
1892	3
1894	7
1895	5
1896	3
1898	7
1899	11
1900	6
1901	4
1902	6
1903	13
1904	12
1905	20
1906	19
1907	7
1908	12
1909	30
1910	19
1911	19
1912	47
1913	48
1914	38
1915	127
1916	64
1917	62
1918	43
1919	42
1920	73
1921	32
1922	140
1923	89
1924	169
1925	197
1926	198
1927	156
1928	220
1929	214
1930	761
1931	185
1932	497
1933	481
1934	246
1935	261
1936	175
1937	245
1938	289
1939	611
1940	932
1941	579
1942	301
1943	546
1944	626
1945	890
1946	383
1947	478
1948	921
1949	402
1950	322
1951	623
1952	502
1953	594
1954	392
1955	610
1956	420
1957	508
1958	473
1959	582
1960	469
1961	532
1962	384
1963	450
1964	255
1965	763
1966	599
1967	757
1968	663
1969	353
1970	522
1971	495
1972	792
1973	1,479
1974	982
1975	851
1976	478
1977	1,231
1978	854
1979	977
1980	399
1981	1,036
1982	1,132
1983	1,040
1984	623
1985	952
1986	1,062
1987	440
1988	1,162
1989	1,931
1990	1,347
1991	1,287
1992	978
1993	722
1994	952
1995	2,134
1996	1,182
1997	3,077
1998	916
1999	1,318
2000	667
2001	1,865
2002	568
2003	1,156
2004	888
2005	930
2006	666
2007	962
2008	1,373
2009	1,102
2010	623
2011	1,664
2012	806
2013	1,482
2014	633
2015	399
2016	534
2017	489
2018	795
2019	812
2020	625
2021	892
2022	1,179
2023	1,036
2024	782
2025	1,177
2026	604

Download the Data

Data for records on 1971-04-11: 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	370
100 to 200	9
200 to 300	4
300 to 400	0
400 to 500	0
500 to 600	2