Weather Records on 27 April 1971

758 weather records were set or tied worldwide on 27 April 1971. Highest significance: Stonyfell, AU.

Key Facts for 27 April 1971

On 27 April 1971, 758 weather records were set or tied at long-record stations worldwide.
110 were record highs and 302 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 12 monthly and 745 daily.
Stonyfell set a monthly record daily precipitation of 94.7 mm (3.7 in) on 27 April 1971.
Across 158 earlier years (1795 to 2026) the same calendar date averaged 473 records.

Record Map

758 stations

758 station records on 27 April 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 April 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Stonyfell	Australia	Record daily precipitation	94.7 mm (3.7 in)	69 of 100 (Major)
Mount Barker	Australia	Record daily precipitation	78.5 mm (3.1 in)	61 of 100 (Major)
Kalangadoo	Australia	Record daily precipitation	88.6 mm (3.5 in)	57 of 100 (Notable)
Adelaide (Morphett Vale)	Australia	Record daily precipitation	53.8 mm (2.1 in)	56 of 100 (Notable)
Victor Harbor Comparison	Australia	Record daily precipitation	38.1 mm (1.5 in)	56 of 100 (Notable)
Bridgewater	Australia	Record daily precipitation	70.9 mm (2.8 in)	54 of 100 (Notable)
Keith	Australia	Record daily precipitation	26.9 mm (1.1 in)	54 of 100 (Notable)
Birdwood	Australia	Record daily precipitation	62.2 mm (2.4 in)	53 of 100 (Notable)
Meningie	Australia	Record daily precipitation	48.3 mm (1.9 in)	53 of 100 (Notable)
Kingston SE (Keilira Station)	Australia	Record daily precipitation	61.5 mm (2.4 in)	53 of 100 (Notable)
Tullaroop Reservoir	Australia	Record daily precipitation	31.2 mm (1.2 in)	53 of 100 (Notable)
Castro Alves	Brazil	Record daily precipitation	64.2 mm (2.5 in)	53 of 100 (Notable)
Chasm Falls	United States	Record snow depth	68.6 cm (27.0 in)	53 of 100 (Notable)
Billings	United States	Record daily precipitation	96.5 mm (3.8 in)	53 of 100 (Notable)
Hahndorf	Australia	Record daily precipitation	84.8 mm (3.3 in)	51 of 100 (Notable)
Tintinara	Australia	Record daily precipitation	36.8 mm (1.4 in)	51 of 100 (Notable)
Pul'-I-Hatum	Turkmenistan	Record daily precipitation	39.2 mm (1.5 in)	51 of 100 (Notable)
Yankalilla	Australia	Record daily precipitation	41.7 mm (1.6 in)	48 of 100 (Notable)
Juremal (Jurema)	Brazil	Record daily precipitation	60.0 mm (2.4 in)	45 of 100 (Notable)
Zuerich/Fluntern	Switzerland	Record daily precipitation	38.3 mm (1.5 in)	45 of 100 (Notable)
Trostberg	Germany	Record daily precipitation	34.2 mm (1.3 in)	44 of 100 (Notable)
Tedzhen	Turkmenistan	Record daily precipitation	48.6 mm (1.9 in)	44 of 100 (Notable)
Saragt	Turkmenistan	Record daily precipitation	41.0 mm (1.6 in)	44 of 100 (Notable)
Mullen 3S	United States	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Myponga	Australia	Record daily precipitation	50.3 mm (2.0 in)	41 of 100 (Notable)
Kristianstad	Sweden	Record low minimum temperature	-4.4 C (24.1 F)	41 of 100 (Notable)
Carson	United States	Record daily snowfall	7.6 cm (3.0 in)	41 of 100 (Notable)
Daylesford	Australia	Record daily precipitation	35.3 mm (1.4 in)	40 of 100 (Notable)
Plant City	United States	Record daily precipitation	33.8 mm (1.3 in)	39 of 100 (Notable)
Victor Harbor (Rivington Grang	Australia	Record daily precipitation	40.9 mm (1.6 in)	37 of 100 (Notable)
Glenlyon	Australia	Record daily precipitation	31.2 mm (1.2 in)	37 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record daily precipitation	33.8 mm (1.3 in)	37 of 100 (Notable)
Troicko-Pecherskoe	Russia	Record low minimum temperature	-20.9 C (-5.6 F)	37 of 100 (Notable)
Cambridge	United States	Record daily snowfall	5.1 cm (2.0 in)	37 of 100 (Notable)
Umea	Sweden	Record low minimum temperature	-9.7 C (14.5 F)	36 of 100 (Notable)
Cherry Gardens	Australia	Record daily precipitation	60.5 mm (2.4 in)	35 of 100 (Notable)
Cudlee Creek (Millbrook)	Australia	Record daily precipitation	66.5 mm (2.6 in)	35 of 100 (Notable)
Normanville	Australia	Record daily precipitation	26.9 mm (1.1 in)	35 of 100 (Notable)
Montelimar	France	Record daily precipitation	44.6 mm (1.8 in)	35 of 100 (Notable)
Ebersberg-Halbing	Germany	Record daily precipitation	32.6 mm (1.3 in)	35 of 100 (Notable)
Lake Leake (Kooeeyong)	Australia	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Vanersborg	Sweden	Record low minimum temperature	-3.5 C (25.7 F)	34 of 100 (Routine)
Strathalbyn	Australia	Record daily precipitation	35.6 mm (1.4 in)	33 of 100 (Routine)
Goroke (Post Office)	Australia	Record daily precipitation	32.3 mm (1.3 in)	33 of 100 (Routine)
Parrsboro	Canada	Record daily precipitation	26.9 mm (1.1 in)	33 of 100 (Routine)
Husum	Germany	Record low minimum temperature	-3.5 C (25.7 F)	33 of 100 (Routine)
Zerbst	Germany	Record low maximum temperature	3.3 C (37.9 F)	32 of 100 (Routine)
Mormon Flat	United States	Record low minimum temperature	0.0 C (32.0 F)	32 of 100 (Routine)
Shepherds Flat	Australia	Record daily precipitation	26.4 mm (1.0 in)	31 of 100 (Routine)
Douglas Smelter	United States	Record low minimum temperature	-3.3 C (26.1 F)	31 of 100 (Routine)
Garber	United States	Record daily precipitation	77.7 mm (3.1 in)	31 of 100 (Routine)
Exu (Novo Exu)	Brazil	Record daily precipitation	103.1 mm (4.1 in)	30 of 100 (Routine)
Capia da Igrejinha	Brazil	Record daily precipitation	53.0 mm (2.1 in)	30 of 100 (Routine)
Jaguarari	Brazil	Record daily precipitation	39.3 mm (1.5 in)	30 of 100 (Routine)
Tucano	Brazil	Record daily precipitation	40.2 mm (1.6 in)	30 of 100 (Routine)
Sparta 1 W	United States	Record daily precipitation	36.8 mm (1.4 in)	30 of 100 (Routine)
Little Falls 2NNE	United States	Record daily snowfall	5.1 cm (2.0 in)	30 of 100 (Routine)
Wood	United States	Record daily snowfall	10.2 cm (4.0 in)	30 of 100 (Routine)
Weatherford	United States	Record high minimum temperature	21.7 C (71.1 F)	30 of 100 (Routine)
Arecibo 3 ESE	Puerto Rico [United States]	Record daily precipitation	55.9 mm (2.2 in)	29 of 100 (Routine)

Counts by Type and Timescale

758 records

Records set or tied on 27 April 1971 by type: Highest daily maximum 53, Lowest daily maximum 102, Highest daily minimum 57, Lowest daily minimum 200, Heaviest daily rainfall 296, Heaviest daily snowfall 34, Deepest snow cover 16.

Records on 27 April 1971 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	102
Highest daily minimum	57
Lowest daily minimum	200
Heaviest daily rainfall	296
Heaviest daily snowfall	34
Deepest snow cover	16

Records on 27 April 1971 by timescale: all-time 1, monthly 12, daily 745.

How Much Records Were Beaten By

635 broken records

Margins by which the 635 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

27 April 1971

Top 20 records on 27 April 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 April 1971	Stonyfell, AU	monthly rain	94.7 mm (3.7 in)	38.1 mm (1.5 in)	33 years	69 of 100 (Major)
27 April 1971	Mount Barker, AU	daily rain	78.5 mm (3.1 in)	29.0 mm (1.1 in)	66 years	61 of 100 (Major)
27 April 1971	Kalangadoo, AU	monthly rain	88.6 mm (3.5 in)	24.3 mm (1.0 in)	23 years	57 of 100 (Notable)
27 April 1971	Adelaide (Morphett Vale), AU	daily rain	53.8 mm (2.1 in)	30.2 mm (1.2 in)	28 years	56 of 100 (Notable)
27 April 1971	Victor Harbor Comparison, AU	daily rain	38.1 mm (1.5 in)	18.8 mm (0.7 in)	73 years	56 of 100 (Notable)
27 April 1971	Bridgewater, AU	daily rain	70.9 mm (2.8 in)	29.8 mm (1.2 in)	61 years	54 of 100 (Notable)
27 April 1971	Keith, AU	daily rain	26.9 mm (1.1 in)	16.5 mm (0.6 in)	61 years	54 of 100 (Notable)
27 April 1971	Birdwood, AU	daily rain	62.2 mm (2.4 in)	24.6 mm (1.0 in)	61 years	53 of 100 (Notable)
27 April 1971	Meningie, AU	monthly rain	48.3 mm (1.9 in)	5.1 mm (0.20 in)	82 years	53 of 100 (Notable)
27 April 1971	Kingston SE (Keilira Station), AU	monthly rain	61.5 mm (2.4 in)	17.0 mm (0.7 in)	45 years	53 of 100 (Notable)
27 April 1971	Tullaroop Reservoir, AU	daily rain	31.2 mm (1.2 in)	22.6 mm (0.9 in)	61 years	53 of 100 (Notable)
27 April 1971	Castro Alves, BR	daily rain	64.2 mm (2.5 in)	45.9 mm (1.8 in)	26 years	53 of 100 (Notable)
27 April 1971	Chasm Falls, US	daily snow depth	68.6 cm (27.0 in)	55.9 cm (22.0 in)	40 years	53 of 100 (Notable)
27 April 1971	Billings, US	daily rain	96.5 mm (3.8 in)	50.8 mm (2.0 in)	48 years	53 of 100 (Notable)
27 April 1971	Hahndorf, AU	daily rain	84.8 mm (3.3 in)	40.1 mm (1.6 in)	10 years	51 of 100 (Notable)
27 April 1971	Tintinara, AU	daily rain	36.8 mm (1.4 in)	29.4 mm (1.2 in)	14 years	51 of 100 (Notable)
27 April 1971	Pul'-I-Hatum, TM	daily rain	39.2 mm (1.5 in)	35.9 mm (1.4 in)	29 years	51 of 100 (Notable)
27 April 1971	Yankalilla, AU	daily rain	41.7 mm (1.6 in)	26.7 mm (1.1 in)	10 years	48 of 100 (Notable)
27 April 1971	Juremal (Jurema), BR	daily rain	60.0 mm (2.4 in)	58.5 mm (2.3 in)	20 years	45 of 100 (Notable)
27 April 1971	Zuerich/Fluntern, CH	daily rain	38.3 mm (1.5 in)	24.3 mm (1.0 in)	2 years	45 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 1971

Records set or tied on this calendar date in each year from 1795 to 1971. 1971 had 758 records.

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

Records on 04-27 in each year
Year	Records
1795	1
1801	1
1802	2
1812	1
1814	1
1817	3
1828	1
1838	1
1841	1
1843	1
1852	1
1853	1
1855	1
1856	1
1857	1
1862	2
1873	2
1874	4
1879	1
1882	2
1884	2
1885	5
1887	1
1888	4
1890	3
1891	1
1892	3
1893	3
1894	7
1895	2
1896	3
1897	4
1899	5
1900	4
1901	3
1903	5
1904	11
1905	16
1906	13
1907	31
1908	27
1909	51
1910	8
1911	37
1912	5
1913	73
1914	19
1915	77
1916	36
1917	47
1918	55
1919	69
1920	44
1921	71
1922	151
1923	110
1924	103
1925	113
1926	287
1927	114
1928	404
1929	71
1930	80
1931	454
1932	331
1933	328
1934	275
1935	227
1936	97
1937	377
1938	467
1939	212
1940	268
1941	361
1942	569
1943	374
1944	214
1945	476
1946	512
1947	373
1948	535
1949	516
1950	617
1951	409
1952	722
1953	651
1954	875
1955	937
1956	685
1957	552
1958	461
1959	470
1960	684
1961	313
1962	741
1963	768
1964	711
1965	568
1966	1,282
1967	733
1968	372
1969	543
1970	1,142
1971	758
1972	645
1973	1,188
1974	926
1975	820
1976	810
1977	801
1978	694
1979	758
1980	706
1981	1,148
1982	685
1983	921
1984	1,754
1985	1,141
1986	1,225
1987	1,482
1988	893
1989	1,320
1990	1,321
1991	1,028
1992	2,163
1993	1,285
1994	1,614
1995	806
1996	1,034
1997	1,588
1998	872
1999	544
2000	1,171
2001	1,138
2002	1,024
2003	840
2004	937
2005	675
2006	705
2007	1,055
2008	1,032
2009	1,299
2010	751
2011	1,291
2012	1,015
2013	568
2014	656
2015	608
2016	755
2017	918
2018	407
2019	626
2020	497
2021	450
2022	567
2023	536
2024	574
2025	659
2026	450

Download the Data

Data for records on 1971-04-27: 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	632
100 to 200	2
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	1