Weather Records on 15 April 1971

640 weather records were set or tied worldwide on 15 April 1971. Highest significance: Carandotta Station, AU.

Key Facts for 15 April 1971

On 15 April 1971, 640 weather records were set or tied at long-record stations worldwide.
136 were record highs and 103 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 634 daily.
Carandotta Station set a monthly record daily precipitation of 116.3 mm (4.6 in) on 15 April 1971.
Across 159 earlier years (1801 to 2026) the same calendar date averaged 492 records.

Record Map

640 stations

640 station records on 15 April 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 April 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Carandotta Station	Australia	Record daily precipitation	116.3 mm (4.6 in)	68 of 100 (Major)
Glenbervie Station	Australia	Record daily precipitation	47.2 mm (1.9 in)	60 of 100 (Major)
Toolebuc	Australia	Record daily precipitation	55.9 mm (2.2 in)	59 of 100 (Notable)
Duchess Hotel	Australia	Record daily precipitation	73.9 mm (2.9 in)	56 of 100 (Notable)
Sackville	Canada	Record daily precipitation	71.1 mm (2.8 in)	55 of 100 (Notable)
Oondooroo	Australia	Record daily precipitation	31.2 mm (1.2 in)	53 of 100 (Notable)
Dagworth Station	Australia	Record daily precipitation	25.9 mm (1.0 in)	52 of 100 (Notable)
Chasm Falls	United States	Record snow depth	83.8 cm (33.0 in)	52 of 100 (Notable)
Lake Nash	Australia	Record daily precipitation	119.4 mm (4.7 in)	51 of 100 (Notable)
Barkly Downs	Australia	Record daily precipitation	71.6 mm (2.8 in)	49 of 100 (Notable)
Joinville (Rvpsc)	Brazil	Record daily precipitation	102.0 mm (4.0 in)	49 of 100 (Notable)
Mount Marlow	Australia	Record daily precipitation	41.1 mm (1.6 in)	48 of 100 (Notable)
Cloncurry McIllwraith St	Australia	Record daily precipitation	35.6 mm (1.4 in)	47 of 100 (Notable)
Moncton	Canada	Record daily snowfall	20.6 cm (8.1 in)	47 of 100 (Notable)
Avon Downs	Australia	Record daily precipitation	49.3 mm (1.9 in)	45 of 100 (Notable)
Port Germein (Baroota Reservoi	Australia	Record daily precipitation	35.8 mm (1.4 in)	43 of 100 (Notable)
Eddington Station	Australia	Record daily precipitation	25.4 mm (1.0 in)	43 of 100 (Notable)
McKinlay Roadhouse	Australia	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Kynuna	Australia	Record daily precipitation	28.2 mm (1.1 in)	43 of 100 (Notable)
Port Hastings	Canada	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Cloncurry Aero	Australia	Record daily precipitation	38.4 mm (1.5 in)	42 of 100 (Notable)
West Leichhardt Station	Australia	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Huntingdon	Canada	Record low minimum temperature	-7.8 C (18.0 F)	41 of 100 (Notable)
Aroostook	Canada	Record daily snowfall	15.2 cm (6.0 in)	40 of 100 (Notable)
Leeudoringstad (Skl)	South Africa	Record daily precipitation	46.0 mm (1.8 in)	40 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record high minimum temperature	0.8 C (33.4 F)	40 of 100 (Notable)
Purnong (Claypans)	Australia	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Eulolo Station	Australia	Record daily precipitation	43.7 mm (1.7 in)	39 of 100 (Notable)
Bladensburg	Australia	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
Headingly Station	Australia	Record daily precipitation	37.3 mm (1.5 in)	38 of 100 (Notable)
Bathurst	Canada	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Mahackala	Russia	Record high minimum temperature	12.9 C (55.2 F)	38 of 100 (Notable)
Chatsworth	Australia	Record daily precipitation	34.3 mm (1.4 in)	37 of 100 (Notable)
Dajarra Hotel	Australia	Record daily precipitation	49.0 mm (1.9 in)	37 of 100 (Notable)
Lowville	United States	Record snow depth	10.2 cm (4.0 in)	37 of 100 (Notable)
Mount Isa Mine	Australia	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Beaconsfield	Australia	Record daily precipitation	26.2 mm (1.0 in)	36 of 100 (Notable)
Baratria	Australia	Record daily precipitation	39.6 mm (1.6 in)	36 of 100 (Notable)
Urandangi	Australia	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Sao Jose de Mipibu	Brazil	Record daily precipitation	70.2 mm (2.8 in)	36 of 100 (Notable)
St Andrews	Canada	Record low maximum temperature	1.7 C (35.1 F)	36 of 100 (Notable)
Camooweal Township	Australia	Record daily precipitation	68.3 mm (2.7 in)	35 of 100 (Notable)
Nappan Cda	Canada	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Wittebank	South Africa	Record daily precipitation	28.0 mm (1.1 in)	35 of 100 (Notable)
Whitewood Post Office	Australia	Record daily precipitation	69.9 mm (2.8 in)	34 of 100 (Routine)
Albion Downs	Australia	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Luverne	United States	Record high maximum temperature	27.8 C (82.0 F)	34 of 100 (Routine)
Buckingham Downs	Australia	Record daily precipitation	29.2 mm (1.1 in)	33 of 100 (Routine)
Gillespie	Australia	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
Nepisiguit Falls	Canada	Record daily snowfall	20.3 cm (8.0 in)	32 of 100 (Routine)
Villaflores (Smn)	Mexico	Record low minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Low Head (Comparison)	Australia	Record high maximum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Peterboro 2 S	United States	Record low maximum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
Mankayane	Swaziland	Record daily precipitation	27.0 mm (1.1 in)	31 of 100 (Routine)
Belmont	Australia	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Lambton	Canada	Record daily snowfall	13.0 cm (5.1 in)	30 of 100 (Routine)
Port Daniel	Canada	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Arvida	Canada	Record daily snowfall	8.9 cm (3.5 in)	30 of 100 (Routine)
Farmington	United States	Record low maximum temperature	2.2 C (36.0 F)	30 of 100 (Routine)
Rive	Brazil	Record daily precipitation	41.2 mm (1.6 in)	29 of 100 (Routine)

Counts by Type and Timescale

640 records

Records set or tied on 15 April 1971 by type: Highest daily maximum 73, Lowest daily maximum 56, Highest daily minimum 63, Lowest daily minimum 47, Heaviest daily rainfall 358, Heaviest daily snowfall 34, Deepest snow cover 9.

Records on 15 April 1971 by type
Record type	Records
Highest daily maximum	73
Lowest daily maximum	56
Highest daily minimum	63
Lowest daily minimum	47
Heaviest daily rainfall	358
Heaviest daily snowfall	34
Deepest snow cover	9

Records on 15 April 1971 by timescale: all-time 0, monthly 6, daily 634.

How Much Records Were Beaten By

562 broken records

Margins by which the 562 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

15 April 1971

Top 20 records on 15 April 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 April 1971	Carandotta Station, AU	monthly rain	116.3 mm (4.6 in)	64.5 mm (2.5 in)	31 years	68 of 100 (Major)
15 April 1971	Glenbervie Station, AU	daily rain	47.2 mm (1.9 in)	47.2 mm (1.9 in)	70 years	60 of 100 (Major)
15 April 1971	Toolebuc, AU	daily rain	55.9 mm (2.2 in)	55.9 mm (2.2 in)	56 years	59 of 100 (Notable)
15 April 1971	Duchess Hotel, AU	daily rain	73.9 mm (2.9 in)	73.9 mm (2.9 in)	56 years	56 of 100 (Notable)
15 April 1971	Sackville, CA	monthly rain	71.1 mm (2.8 in)	22.3 mm (0.9 in)	21 years	55 of 100 (Notable)
15 April 1971	Oondooroo, AU	daily rain	31.2 mm (1.2 in)	31.2 mm (1.2 in)	57 years	53 of 100 (Notable)
15 April 1971	Dagworth Station, AU	daily rain	25.9 mm (1.0 in)	25.9 mm (1.0 in)	82 years	52 of 100 (Notable)
15 April 1971	Chasm Falls, US	daily snow depth	83.8 cm (33.0 in)	66.0 cm (26.0 in)	28 years	52 of 100 (Notable)
15 April 1971	Lake Nash, AU	monthly rain	119.4 mm (4.7 in)	43.2 mm (1.7 in)	8 years	51 of 100 (Notable)
15 April 1971	Barkly Downs, AU	daily rain	71.6 mm (2.8 in)	56.9 mm (2.2 in)	60 years	49 of 100 (Notable)
15 April 1971	Joinville (Rvpsc), BR	daily rain	102.0 mm (4.0 in)	87.9 mm (3.5 in)	20 years	49 of 100 (Notable)
15 April 1971	Mount Marlow, AU	daily rain	41.1 mm (1.6 in)	41.1 mm (1.6 in)	56 years	48 of 100 (Notable)
15 April 1971	Cloncurry McIllwraith St, AU	daily rain	35.6 mm (1.4 in)	31.8 mm (1.3 in)	60 years	47 of 100 (Notable)
15 April 1971	Moncton, CA	daily snowfall	20.6 cm (8.1 in)	18.1 cm (7.1 in)	26 years	47 of 100 (Notable)
15 April 1971	Avon Downs, AU	daily rain	49.3 mm (1.9 in)	37.4 mm (1.5 in)	60 years	45 of 100 (Notable)
15 April 1971	Port Germein (Baroota Reservoi, AU	daily rain	35.8 mm (1.4 in)	26.1 mm (1.0 in)	9 years	43 of 100 (Notable)
15 April 1971	Eddington Station, AU	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	78 years	43 of 100 (Notable)
15 April 1971	McKinlay Roadhouse, AU	daily rain	33.0 mm (1.3 in)	23.6 mm (0.9 in)	60 years	43 of 100 (Notable)
15 April 1971	Kynuna, AU	daily rain	28.2 mm (1.1 in)	18.8 mm (0.7 in)	76 years	43 of 100 (Notable)
15 April 1971	Port Hastings, CA	daily rain	35.6 mm (1.4 in)	16.5 mm (0.6 in)	65 years	43 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

1801 to 1971

Records set or tied on this calendar date in each year from 1801 to 1971. 1971 had 640 records.

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

Records on 04-15 in each year
Year	Records
1801	1
1817	1
1820	1
1844	1
1845	1
1847	1
1849	1
1853	2
1855	2
1858	1
1862	3
1865	3
1866	1
1868	1
1869	2
1873	1
1874	1
1876	1
1880	1
1882	1
1885	3
1886	1
1887	3
1889	2
1890	3
1891	2
1892	8
1893	2
1894	1
1896	2
1897	1
1898	2
1899	4
1900	9
1901	2
1902	4
1903	8
1904	39
1905	11
1906	20
1907	18
1908	15
1909	18
1910	16
1911	20
1912	24
1913	39
1914	17
1915	13
1916	15
1917	35
1918	40
1919	22
1920	50
1921	59
1922	94
1923	178
1924	172
1925	168
1926	453
1927	321
1928	631
1929	91
1930	289
1931	388
1932	150
1933	300
1934	339
1935	515
1936	439
1937	277
1938	596
1939	789
1940	581
1941	628
1942	525
1943	1,037
1944	313
1945	783
1946	245
1947	532
1948	306
1949	419
1950	568
1951	504
1952	357
1953	475
1954	896
1955	484
1956	750
1957	378
1958	458
1959	314
1960	319
1961	877
1962	733
1963	714
1964	382
1965	504
1966	464
1967	599
1968	476
1969	555
1970	841
1971	640
1972	896
1973	667
1974	385
1975	780
1976	1,566
1977	649
1978	426
1979	370
1980	1,066
1981	724
1982	955
1983	1,343
1984	612
1985	788
1986	1,140
1987	579
1988	839
1989	836
1990	837
1991	769
1992	783
1993	1,156
1994	835
1995	805
1996	1,173
1997	1,031
1998	1,752
1999	1,249
2000	1,163
2001	1,043
2002	1,866
2003	1,760
2004	761
2005	583
2006	1,637
2007	1,776
2008	1,157
2009	853
2010	804
2011	1,162
2012	1,007
2013	1,146
2014	1,721
2015	739
2016	602
2017	474
2018	1,913
2019	610
2020	1,068
2021	494
2022	1,145
2023	912
2024	1,096
2025	860
2026	1,118

Download the Data

Data for records on 1971-04-15: 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	552
100 to 200	6
200 to 300	2
300 to 400	0
400 to 500	1
500 to 600	0
600 to 700	1