Weather Records on 27 May 1970

326 weather records were set or tied worldwide on 27 May 1970. Highest significance: Uybat, RU.

Key Facts for 27 May 1970

On 27 May 1970, 326 weather records were set or tied at long-record stations worldwide.
49 were record highs and 123 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 321 daily.
Uybat set a monthly record daily precipitation of 36.7 mm (1.4 in) on 27 May 1970.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 418 records.

Record Map

326 stations

326 station records on 27 May 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Uybat	Russia	Record daily precipitation	36.7 mm (1.4 in)	62 of 100 (Major)
Papaikou 144.1	United States	Record daily precipitation	114.8 mm (4.5 in)	58 of 100 (Notable)
Calmar	Canada	Record daily precipitation	51.1 mm (2.0 in)	54 of 100 (Notable)
Rochester Intl AP	United States	Record daily precipitation	52.8 mm (2.1 in)	54 of 100 (Notable)
Sirsi	India	Record daily precipitation	112.3 mm (4.4 in)	51 of 100 (Notable)
Togul	Russia	Record daily precipitation	27.8 mm (1.1 in)	48 of 100 (Notable)
Jamkhandi	India	Record daily precipitation	45.2 mm (1.8 in)	44 of 100 (Notable)
Haliyal	India	Record daily precipitation	49.5 mm (1.9 in)	44 of 100 (Notable)
Nagaram	India	Record daily precipitation	73.4 mm (2.9 in)	43 of 100 (Notable)
Novoselenginsk	Russia	Record daily precipitation	27.8 mm (1.1 in)	43 of 100 (Notable)
Somerville 4 NW	United States	Record daily precipitation	35.3 mm (1.4 in)	40 of 100 (Notable)
Nandikottur	India	Record daily precipitation	81.0 mm (3.2 in)	39 of 100 (Notable)
Mancos 1SW	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Marquette	United States	Record low maximum temperature	6.7 C (44.1 F)	35 of 100 (Notable)
Hvar	Croatia	Record low minimum temperature	12.7 C (54.9 F)	34 of 100 (Routine)
Vayittiri	India	Record daily precipitation	125.1 mm (4.9 in)	34 of 100 (Routine)
Pahoa 65	United States	Record daily precipitation	85.3 mm (3.4 in)	34 of 100 (Routine)
Gajapathinagaram	India	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)
Radhanagari	India	Record daily precipitation	48.0 mm (1.9 in)	33 of 100 (Routine)
Susanville 2SW	United States	Record high minimum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Francis	Canada	Record daily precipitation	26.4 mm (1.0 in)	30 of 100 (Routine)
Peddapuram	India	Record daily precipitation	77.1 mm (3.0 in)	30 of 100 (Routine)
Elberton 2 N	United States	Record low minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Madison Wwtp	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Ceylon	Canada	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Brocken	Germany	Record snow depth	65.0 cm (25.6 in)	29 of 100 (Routine)
Alapaha Exp STN	United States	Record daily precipitation	44.5 mm (1.8 in)	29 of 100 (Routine)
Bergland Dam	United States	Record low maximum temperature	6.1 C (43.0 F)	29 of 100 (Routine)
Wills Pt	United States	Record daily precipitation	49.5 mm (1.9 in)	29 of 100 (Routine)
Macaubas	Brazil	Record daily precipitation	76.2 mm (3.0 in)	28 of 100 (Routine)
Saratow	Russia	Record daily precipitation	35.1 mm (1.4 in)	28 of 100 (Routine)
Maricopa	United States	Record low minimum temperature	5.6 C (42.1 F)	28 of 100 (Routine)
Coatesville 1 SW	United States	Record daily precipitation	32.5 mm (1.3 in)	28 of 100 (Routine)
Wisconsin Rapids	United States	Record low maximum temperature	7.8 C (46.0 F)	28 of 100 (Routine)
Karimnagar	India	Record daily precipitation	38.8 mm (1.5 in)	27 of 100 (Routine)
Turnu Magurele	Romania	Record low minimum temperature	7.0 C (44.6 F)	27 of 100 (Routine)
Lumber City	United States	Record daily precipitation	28.4 mm (1.1 in)	27 of 100 (Routine)
Clear Lake	United States	Record daily precipitation	35.1 mm (1.4 in)	27 of 100 (Routine)
Mtn View 91	United States	Record low maximum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Welland	Canada	Record low maximum temperature	11.7 C (53.1 F)	26 of 100 (Routine)
Iguala (Smn)	Mexico	Record high minimum temperature	26.7 C (80.1 F)	26 of 100 (Routine)
Pearsall	United States	Record daily precipitation	75.4 mm (3.0 in)	26 of 100 (Routine)
El Dorado Goodwin Fld	United States	Record daily precipitation	46.0 mm (1.8 in)	26 of 100 (Routine)
Queimadas	Brazil	Record daily precipitation	25.0 mm (1.0 in)	25 of 100 (Routine)
San Fidel 2 E	United States	Record low maximum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Taylor	United States	Record daily precipitation	42.9 mm (1.7 in)	25 of 100 (Routine)
Merrill	United States	Record low maximum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Rosthern	Canada	Record low maximum temperature	8.3 C (46.9 F)	24 of 100 (Routine)
Vladikavkaz	Russia	Record low maximum temperature	11.1 C (52.0 F)	24 of 100 (Routine)
Redwood Falls Muni AP	United States	Record daily precipitation	48.8 mm (1.9 in)	24 of 100 (Routine)
Rudnya	Russia	Record daily precipitation	34.7 mm (1.4 in)	23 of 100 (Routine)
Downieville	United States	Record high minimum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Lockport 2SE	United States	Record low maximum temperature	11.7 C (53.1 F)	23 of 100 (Routine)
Reedsburg Wwtp	United States	Record low maximum temperature	11.7 C (53.1 F)	23 of 100 (Routine)
Albuquerque Intl AP	United States	Record low maximum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
St Catharines	Canada	Record low maximum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Kitchener	Canada	Record low maximum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Supa	India	Record daily precipitation	51.0 mm (2.0 in)	21 of 100 (Routine)
Gauribidanur	India	Record daily precipitation	62.0 mm (2.4 in)	21 of 100 (Routine)
Uralsk	Kazakhstan	Record high minimum temperature	19.6 C (67.3 F)	21 of 100 (Routine)

Counts by Type and Timescale

326 records

Records set or tied on 27 May 1970 by type: Highest daily maximum 15, Lowest daily maximum 98, Highest daily minimum 34, Lowest daily minimum 25, Heaviest daily rainfall 150, Heaviest daily snowfall 2, Deepest snow cover 2.

Records on 27 May 1970 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	98
Highest daily minimum	34
Lowest daily minimum	25
Heaviest daily rainfall	150
Heaviest daily snowfall	2
Deepest snow cover	2

Records on 27 May 1970 by timescale: all-time 0, monthly 5, daily 321.

How Much Records Were Beaten By

266 broken records

Margins by which the 266 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 610.0. Ties are not counted.

Top 20 by Significance

27 May 1970

Top 20 records on 27 May 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 1970	Uybat, RU	monthly rain	36.7 mm (1.4 in)	14.0 mm (0.6 in)	32 years	62 of 100 (Major)
27 May 1970	Papaikou 144.1, US	daily rain	114.8 mm (4.5 in)	69.3 mm (2.7 in)	48 years	58 of 100 (Notable)
27 May 1970	Calmar, CA	daily rain	51.1 mm (2.0 in)	26.2 mm (1.0 in)	47 years	54 of 100 (Notable)
27 May 1970	Rochester Intl AP, US	daily rain	52.8 mm (2.1 in)	31.2 mm (1.2 in)	52 years	54 of 100 (Notable)
27 May 1970	Sirsi, IN	daily rain	112.3 mm (4.4 in)	76.0 mm (3.0 in)	13 years	51 of 100 (Notable)
27 May 1970	Togul, RU	daily rain	27.8 mm (1.1 in)	18.1 mm (0.7 in)	21 years	48 of 100 (Notable)
27 May 1970	Jamkhandi, IN	daily rain	45.2 mm (1.8 in)	24.9 mm (1.0 in)	53 years	44 of 100 (Notable)
27 May 1970	Haliyal, IN	daily rain	49.5 mm (1.9 in)	34.0 mm (1.3 in)	57 years	44 of 100 (Notable)
27 May 1970	Nagaram, IN	daily rain	73.4 mm (2.9 in)	57.1 mm (2.2 in)	33 years	43 of 100 (Notable)
27 May 1970	Novoselenginsk, RU	daily rain	27.8 mm (1.1 in)	23.5 mm (0.9 in)	0 years	43 of 100 (Notable)
27 May 1970	Somerville 4 NW, US	daily rain	35.3 mm (1.4 in)	6.1 mm (0.24 in)	88 years	40 of 100 (Notable)
27 May 1970	Nandikottur, IN	daily rain	81.0 mm (3.2 in)	55.3 mm (2.2 in)	24 years	39 of 100 (Notable)
27 May 1970	Mancos 1SW, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	70 years	38 of 100 (Notable)
27 May 1970	Marquette, US	daily low max	6.7 C (44.1 F)	0.7 C (1.3 F)	84 years	35 of 100 (Notable)
27 May 1970	Hvar, HR	daily low min	12.7 C (54.9 F)	0.3 C (0.5 F)	82 years	34 of 100 (Routine)
27 May 1970	Vayittiri, IN	daily rain	125.1 mm (4.9 in)	45.1 mm (1.8 in)	33 years	34 of 100 (Routine)
27 May 1970	Pahoa 65, US	daily rain	85.3 mm (3.4 in)	41.1 mm (1.6 in)	3 years	34 of 100 (Routine)
27 May 1970	Gajapathinagaram, IN	daily rain	50.8 mm (2.0 in)	18.5 mm (0.7 in)	65 years	33 of 100 (Routine)
27 May 1970	Radhanagari, IN	daily rain	48.0 mm (1.9 in)	40.1 mm (1.6 in)	20 years	33 of 100 (Routine)
27 May 1970	Susanville 2SW, US	daily high min	13.9 C (57.0 F)	1.7 C (3.1 F)	73 years	33 of 100 (Routine)

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 1970

Records set or tied on this calendar date in each year from 1797 to 1970. 1970 had 326 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 1970-05-27: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 100	264
100 to 200	1
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	1