Weather Records on 27 May 1975

404 weather records were set or tied worldwide on 27 May 1975. Highest significance: Debrecen Airport, HU.

Key Facts for 27 May 1975

On 27 May 1975, 404 weather records were set or tied at long-record stations worldwide.
98 were record highs and 76 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 394 daily.
Debrecen Airport set a daily record precipitation of 47.3 mm (1.9 in) on 27 May 1975.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 418 records.

Record Map

404 stations

404 station records on 27 May 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Debrecen Airport	Hungary	Record daily precipitation	47.3 mm (1.9 in)	64 of 100 (Major)
St George	United States	Record daily precipitation	29.2 mm (1.1 in)	63 of 100 (Major)
Orleans 2 W	United States	Record daily precipitation	60.2 mm (2.4 in)	50 of 100 (Notable)
Sao Luiz Do Quitunde	Brazil	Record daily precipitation	125.0 mm (4.9 in)	46 of 100 (Notable)
Newnan 7 WNW	United States	Record daily precipitation	47.8 mm (1.9 in)	46 of 100 (Notable)
Outtrim	Australia	Record daily precipitation	28.0 mm (1.1 in)	45 of 100 (Notable)
Zaragoza (Smn)	Mexico	Record daily precipitation	67.8 mm (2.7 in)	45 of 100 (Notable)
Isseka	Australia	Record daily precipitation	37.0 mm (1.5 in)	42 of 100 (Notable)
Morganton	United States	Record daily precipitation	43.9 mm (1.7 in)	42 of 100 (Notable)
Jacksonville	United States	Record daily precipitation	137.2 mm (5.4 in)	41 of 100 (Notable)
Port Stanley	Canada	Record high minimum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Drobeta Turnu Severin	Romania	Record daily precipitation	43.4 mm (1.7 in)	39 of 100 (Notable)
Cuquio	Mexico	Record daily precipitation	53.1 mm (2.1 in)	38 of 100 (Notable)
Hill City Muni AP	United States	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
Ekaterinburg	Russia	Record daily precipitation	25.9 mm (1.0 in)	37 of 100 (Notable)
Aiken 5SE	United States	Record daily precipitation	47.8 mm (1.9 in)	37 of 100 (Notable)
Nicosia	Cyprus	Record high minimum temperature	21.0 C (69.8 F)	36 of 100 (Notable)
Osijek	Croatia	Record daily precipitation	28.8 mm (1.1 in)	36 of 100 (Notable)
Thurber 5 NE	United States	Record daily precipitation	87.6 mm (3.4 in)	36 of 100 (Notable)
London Locks	United States	Record daily precipitation	46.2 mm (1.8 in)	36 of 100 (Notable)
Wurarga	Australia	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Minilya	Australia	Record daily precipitation	40.0 mm (1.6 in)	34 of 100 (Routine)
Tallering	Australia	Record daily precipitation	32.0 mm (1.3 in)	34 of 100 (Routine)
Tortosa - Observatorio del Ebr	Spain	Record daily precipitation	64.9 mm (2.6 in)	34 of 100 (Routine)
Dartmoor	Australia	Record daily precipitation	33.6 mm (1.3 in)	33 of 100 (Routine)
Balla	Australia	Record daily precipitation	35.0 mm (1.4 in)	32 of 100 (Routine)
Trayning	Australia	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Ekimchan	Russia	Record high maximum temperature	30.2 C (86.4 F)	32 of 100 (Routine)
Astrakan	Russia	Record high maximum temperature	33.4 C (92.1 F)	32 of 100 (Routine)
Brazos	United States	Record daily precipitation	60.7 mm (2.4 in)	32 of 100 (Routine)
Assuncao	Brazil	Record daily precipitation	44.1 mm (1.7 in)	31 of 100 (Routine)
Haileybury	Canada	Record high minimum temperature	16.7 C (62.1 F)	30 of 100 (Routine)
Philadelphia Polisie	South Africa	Record daily precipitation	28.2 mm (1.1 in)	30 of 100 (Routine)
Franklin	United States	Record daily precipitation	53.8 mm (2.1 in)	30 of 100 (Routine)
Salisbury	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Yamma	Australia	Record daily precipitation	31.2 mm (1.2 in)	29 of 100 (Routine)
Tuba City	United States	Record low minimum temperature	0.0 C (32.0 F)	29 of 100 (Routine)
Coleman	United States	Record daily precipitation	64.8 mm (2.6 in)	29 of 100 (Routine)
Binnu	Australia	Record daily precipitation	41.0 mm (1.6 in)	28 of 100 (Routine)
Inverell Comparison	Australia	Record low minimum temperature	-4.4 C (24.1 F)	28 of 100 (Routine)
Itapage	Brazil	Record daily precipitation	48.2 mm (1.9 in)	28 of 100 (Routine)
Petropavlovsk-Kamchatskij	Russia	Record high minimum temperature	6.4 C (43.5 F)	28 of 100 (Routine)
Island Park	United States	Record snow depth	38.1 cm (15.0 in)	28 of 100 (Routine)
Creekside	United States	Record daily precipitation	31.5 mm (1.2 in)	28 of 100 (Routine)
Bullardoo	Australia	Record daily precipitation	26.0 mm (1.0 in)	27 of 100 (Routine)
Mae Dagua de Dentro	Brazil	Record daily precipitation	39.1 mm (1.5 in)	27 of 100 (Routine)
Tamiami Trail 40 Mi Bend	United States	Record daily precipitation	66.5 mm (2.6 in)	27 of 100 (Routine)
Malad	United States	Record low minimum temperature	-3.9 C (25.0 F)	27 of 100 (Routine)
Sedro-Woolley	United States	Record low maximum temperature	13.9 C (57.0 F)	27 of 100 (Routine)
Ogilvie	Australia	Record daily precipitation	28.5 mm (1.1 in)	26 of 100 (Routine)
Timovskoe	Russia	Record high maximum temperature	28.7 C (83.7 F)	26 of 100 (Routine)
Melitopol	Ukraine	Record daily precipitation	25.9 mm (1.0 in)	26 of 100 (Routine)
Palatka	United States	Record daily precipitation	29.2 mm (1.1 in)	26 of 100 (Routine)
Middle Dam	United States	Record daily precipitation	37.3 mm (1.5 in)	26 of 100 (Routine)
Menzelinsk	Russia	Record daily precipitation	25.2 mm (1.0 in)	25 of 100 (Routine)
Mahackala	Russia	Record high maximum temperature	31.8 C (89.2 F)	25 of 100 (Routine)
Vertentes	Brazil	Record daily precipitation	36.0 mm (1.4 in)	24 of 100 (Routine)
Fernie	Canada	Record low minimum temperature	-1.7 C (28.9 F)	24 of 100 (Routine)
Cheesman	United States	Record low minimum temperature	-3.3 C (26.1 F)	24 of 100 (Routine)
Arrowrock Dam	United States	Record low minimum temperature	0.0 C (32.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

404 records

Records set or tied on 27 May 1975 by type: Highest daily maximum 39, Lowest daily maximum 35, Highest daily minimum 59, Lowest daily minimum 41, Heaviest daily rainfall 226, Deepest snow cover 4.

Records on 27 May 1975 by type
Record type	Records
Highest daily maximum	39
Lowest daily maximum	35
Highest daily minimum	59
Lowest daily minimum	41
Heaviest daily rainfall	226
Heaviest daily snowfall	0
Deepest snow cover	4

Records on 27 May 1975 by timescale: all-time 0, monthly 10, daily 394.

How Much Records Were Beaten By

337 broken records

Margins by which the 337 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 635.0. Ties are not counted.

Top 20 by Significance

27 May 1975

Top 20 records on 27 May 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 1975	Debrecen Airport, HU	daily rain	47.3 mm (1.9 in)	21.8 mm (0.9 in)	73 years	64 of 100 (Major)
27 May 1975	St George, US	daily rain	29.2 mm (1.1 in)	25.6 mm (1.0 in)	50 years	63 of 100 (Major)
27 May 1975	Orleans 2 W, US	daily rain	60.2 mm (2.4 in)	38.1 mm (1.5 in)	48 years	50 of 100 (Notable)
27 May 1975	Sao Luiz Do Quitunde, BR	daily rain	125.0 mm (4.9 in)	82.9 mm (3.3 in)	12 years	46 of 100 (Notable)
27 May 1975	Newnan 7 WNW, US	daily rain	47.8 mm (1.9 in)	27.5 mm (1.1 in)	60 years	46 of 100 (Notable)
27 May 1975	Outtrim, AU	daily rain	28.0 mm (1.1 in)	11.5 mm (0.5 in)	77 years	45 of 100 (Notable)
27 May 1975	Zaragoza (Smn), MX	daily rain	67.8 mm (2.7 in)	41.4 mm (1.6 in)	41 years	45 of 100 (Notable)
27 May 1975	Isseka, AU	daily rain	37.0 mm (1.5 in)	18.5 mm (0.7 in)	54 years	42 of 100 (Notable)
27 May 1975	Morganton, US	daily rain	43.9 mm (1.7 in)	19.5 mm (0.8 in)	61 years	42 of 100 (Notable)
27 May 1975	Jacksonville, US	monthly rain	137.2 mm (5.4 in)	36.4 mm (1.4 in)	16 years	41 of 100 (Notable)
27 May 1975	Port Stanley, CA	daily high min	16.1 C (61.0 F)	0.5 C (0.9 F)	94 years	39 of 100 (Notable)
27 May 1975	Drobeta Turnu Severin, RO	daily rain	43.4 mm (1.7 in)	20.9 mm (0.8 in)	41 years	39 of 100 (Notable)
27 May 1975	Cuquio, MX	monthly rain	53.1 mm (2.1 in)	18.3 mm (0.7 in)	21 years	38 of 100 (Notable)
27 May 1975	Hill City Muni AP, US	daily rain	52.8 mm (2.1 in)	30.4 mm (1.2 in)	12 years	38 of 100 (Notable)
27 May 1975	Ekaterinburg, RU	daily rain	25.9 mm (1.0 in)	8.9 mm (0.35 in)	37 years	37 of 100 (Notable)
27 May 1975	Aiken 5SE, US	daily rain	47.8 mm (1.9 in)	19.6 mm (0.8 in)	50 years	37 of 100 (Notable)
27 May 1975	Nicosia, CY	daily high min	21.0 C (69.8 F)	1.0 C (1.8 F)	82 years	36 of 100 (Notable)
27 May 1975	Osijek, HR	daily rain	28.8 mm (1.1 in)	5.7 mm (0.22 in)	75 years	36 of 100 (Notable)
27 May 1975	Thurber 5 NE, US	daily rain	87.6 mm (3.4 in)	61.7 mm (2.4 in)	4 years	36 of 100 (Notable)
27 May 1975	London Locks, US	daily rain	46.2 mm (1.8 in)	21.3 mm (0.8 in)	20 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

1797 to 1975

Records set or tied on this calendar date in each year from 1797 to 1975. 1975 had 404 records.

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

Records on 05-27 in each year
Year	Records
1797	1
1817	1
1818	1
1834	2
1836	4
1839	1
1845	1
1846	1
1847	1
1849	1
1852	1
1858	1
1860	1
1863	1
1864	3
1868	4
1869	1
1874	1
1876	1
1879	3
1880	5
1881	2
1883	1
1884	1
1885	1
1886	1
1888	1
1889	3
1890	5
1891	2
1892	8
1893	5
1894	13
1895	4
1896	3
1897	1
1898	3
1899	2
1900	4
1901	7
1902	12
1903	7
1904	11
1905	7
1906	28
1907	23
1908	16
1909	7
1910	31
1911	53
1912	27
1913	19
1914	92
1915	63
1916	26
1917	23
1918	39
1919	38
1920	40
1921	56
1922	36
1923	86
1924	92
1925	291
1926	107
1927	183
1928	81
1929	195
1930	99
1931	367
1932	265
1933	284
1934	393
1935	128
1936	468
1937	298
1938	492
1939	312
1940	138
1941	436
1942	657
1943	160
1944	479
1945	272
1946	424
1947	485
1948	324
1949	366
1950	697
1951	578
1952	258
1953	603
1954	367
1955	571
1956	491
1957	367
1958	619
1959	449
1960	421
1961	1,504
1962	460
1963	421
1964	317
1965	652
1966	398
1967	492
1968	605
1969	850
1970	326
1971	612
1972	508
1973	943
1974	630
1975	404
1976	589
1977	663
1978	814
1979	899
1980	644
1981	891
1982	838
1983	1,253
1984	834
1985	873
1986	696
1987	1,037
1988	777
1989	904
1990	804
1991	1,429
1992	1,413
1993	835
1994	848
1995	815
1996	1,378
1997	919
1998	1,079
1999	876
2000	1,347
2001	898
2002	511
2003	918
2004	838
2005	1,094
2006	1,171
2007	886
2008	914
2009	858
2010	955
2011	1,055
2012	1,475
2013	607
2014	835
2015	537
2016	622
2017	541
2018	1,355
2019	960
2020	906
2021	414
2022	653
2023	405
2024	904
2025	761
2026	1,185

Download the Data

Data for records on 1975-05-27: 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	335
100 to 200	0
200 to 300	0
300 to 400	1
400 to 500	0
500 to 600	0
600 to 700	1