Weather Records on 27 May 1939

312 weather records were set or tied worldwide on 27 May 1939. Highest significance: Tallinn, EE.

Key Facts for 27 May 1939

On 27 May 1939, 312 weather records were set or tied at long-record stations worldwide.
168 were record highs and 12 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 304 daily.
Tallinn set a monthly record daily precipitation of 44.0 mm (1.7 in) on 27 May 1939.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 418 records.

Record Map

312 stations

312 station records on 27 May 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tallinn	Estonia	Record daily precipitation	44.0 mm (1.7 in)	47 of 100 (Notable)
Washington	United States	Record daily precipitation	58.4 mm (2.3 in)	44 of 100 (Notable)
Elkader 6 SSW	United States	Record daily precipitation	62.5 mm (2.5 in)	43 of 100 (Notable)
Vancouver Pmo	Canada	Record daily precipitation	32.5 mm (1.3 in)	40 of 100 (Notable)
De Smet	United States	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Keokuk L&D 19	United States	Record daily precipitation	56.6 mm (2.2 in)	39 of 100 (Notable)
Chicoutimi	Canada	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Bird Island	United States	Record daily precipitation	54.9 mm (2.2 in)	38 of 100 (Notable)
Mendota	United States	Record daily precipitation	47.2 mm (1.9 in)	37 of 100 (Notable)
Mahendraganj	India	Record daily precipitation	151.4 mm (6.0 in)	36 of 100 (Notable)
Beaver City	United States	Record daily precipitation	67.6 mm (2.7 in)	36 of 100 (Notable)
Lynch	United States	Record daily precipitation	86.6 mm (3.4 in)	36 of 100 (Notable)
Jefferson City Wtp	United States	Record daily precipitation	69.1 mm (2.7 in)	35 of 100 (Notable)
Willow Sprg Radio Kuku	United States	Record daily precipitation	47.5 mm (1.9 in)	35 of 100 (Notable)
Kislovodsk	Russia	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Dresden	United States	Record daily precipitation	52.3 mm (2.1 in)	34 of 100 (Routine)
Newport	United States	Record daily precipitation	48.3 mm (1.9 in)	34 of 100 (Routine)
Peterborough	Canada	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Sivakasi	India	Record daily precipitation	38.1 mm (1.5 in)	31 of 100 (Routine)
Warsaw	United States	Record daily precipitation	86.1 mm (3.4 in)	31 of 100 (Routine)
Castlewood	United States	Record daily precipitation	42.4 mm (1.7 in)	31 of 100 (Routine)
Sonamarg &	India	Record daily precipitation	49.5 mm (1.9 in)	30 of 100 (Routine)
Highmore	United States	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Simcoe	Canada	Record high maximum temperature	30.6 C (87.1 F)	28 of 100 (Routine)
Quebec	Canada	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)
Columbus	United States	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Greenville 2 NE	United States	Record high maximum temperature	35.6 C (96.1 F)	28 of 100 (Routine)
Mackay Post Office	Australia	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Milan 1NW	United States	Record daily precipitation	32.0 mm (1.3 in)	26 of 100 (Routine)
Khajauli	India	Record daily precipitation	52.1 mm (2.1 in)	25 of 100 (Routine)
New Hampton	United States	Record daily precipitation	58.4 mm (2.3 in)	25 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high maximum temperature	30.6 C (87.1 F)	25 of 100 (Routine)
Delaware 3 WSW	United States	Record daily precipitation	42.9 mm (1.7 in)	23 of 100 (Routine)
Bertrand	United States	Record daily precipitation	50.8 mm (2.0 in)	23 of 100 (Routine)
Bloomfield 3 SE	United States	Record high minimum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Armour	United States	Record daily precipitation	51.1 mm (2.0 in)	23 of 100 (Routine)
Ridgetown	Canada	Record high maximum temperature	28.9 C (84.0 F)	22 of 100 (Routine)
Pipestone	United States	Record daily precipitation	29.2 mm (1.1 in)	22 of 100 (Routine)
Duck Hill	United States	Record daily precipitation	39.1 mm (1.5 in)	22 of 100 (Routine)
Mana 1026	United States	Record high minimum temperature	22.8 C (73.0 F)	22 of 100 (Routine)
Huron Rgnl AP	United States	Record daily precipitation	28.2 mm (1.1 in)	22 of 100 (Routine)
Billabalong	Australia	Record daily precipitation	26.4 mm (1.0 in)	21 of 100 (Routine)
Haileybury	Canada	Record daily precipitation	35.1 mm (1.4 in)	21 of 100 (Routine)
Virudhunagar	India	Record daily precipitation	34.3 mm (1.4 in)	21 of 100 (Routine)
Halsey 2 W	United States	Record daily precipitation	49.3 mm (1.9 in)	21 of 100 (Routine)
Columbus Ohio St UNIV	United States	Record high minimum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Forestburg 4 NNE	United States	Record daily precipitation	35.3 mm (1.4 in)	21 of 100 (Routine)
Gann Valley 4NW	United States	Record daily precipitation	57.4 mm (2.3 in)	21 of 100 (Routine)
Saltspring Island	Canada	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Willmar Wwtp	United States	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Esquimalt	Canada	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Nikolaev	Ukraine	Record daily precipitation	8.0 mm (0.31 in)	20 of 100 (Routine)
Steveston	Canada	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Tihoreck	Russia	Record daily precipitation	14.3 mm (0.6 in)	20 of 100 (Routine)
Clarke River Telecom	Australia	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Dawson	Canada	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Ironwood	United States	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Tiskilwa 2 SE	United States	Record daily precipitation	30.0 mm (1.2 in)	20 of 100 (Routine)
Woolgorong	Australia	Record daily precipitation	25.1 mm (1.0 in)	19 of 100 (Routine)
Uanda	Australia	Record daily precipitation	20.8 mm (0.8 in)	19 of 100 (Routine)

Counts by Type and Timescale

312 records

Records set or tied on 27 May 1939 by type: Highest daily maximum 58, Lowest daily maximum 1, Highest daily minimum 110, Lowest daily minimum 11, Heaviest daily rainfall 132.

Records on 27 May 1939 by type
Record type	Records
Highest daily maximum	58
Lowest daily maximum	1
Highest daily minimum	110
Lowest daily minimum	11
Heaviest daily rainfall	132
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 May 1939 by timescale: all-time 0, monthly 8, daily 304.

How Much Records Were Beaten By

245 broken records

Margins by which the 245 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.0. Ties are not counted.

Top 20 by Significance

27 May 1939

Top 20 records on 27 May 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 1939	Tallinn, EE	monthly rain	44.0 mm (1.7 in)	5.0 mm (0.20 in)	67 years	47 of 100 (Notable)
27 May 1939	Washington, US	daily rain	58.4 mm (2.3 in)	34.0 mm (1.3 in)	36 years	44 of 100 (Notable)
27 May 1939	Elkader 6 SSW, US	daily rain	62.5 mm (2.5 in)	32.8 mm (1.3 in)	36 years	43 of 100 (Notable)
27 May 1939	Vancouver Pmo, CA	daily rain	32.5 mm (1.3 in)	20.1 mm (0.8 in)	25 years	40 of 100 (Notable)
27 May 1939	De Smet, US	daily rain	38.9 mm (1.5 in)	25.2 mm (1.0 in)	39 years	40 of 100 (Notable)
27 May 1939	Keokuk L&D 19, US	daily rain	56.6 mm (2.2 in)	25.6 mm (1.0 in)	41 years	39 of 100 (Notable)
27 May 1939	Chicoutimi, CA	daily rain	26.4 mm (1.0 in)	11.9 mm (0.5 in)	48 years	38 of 100 (Notable)
27 May 1939	Bird Island, US	daily rain	54.9 mm (2.2 in)	20.4 mm (0.8 in)	40 years	38 of 100 (Notable)
27 May 1939	Mendota, US	daily rain	47.2 mm (1.9 in)	24.3 mm (1.0 in)	25 years	37 of 100 (Notable)
27 May 1939	Mahendraganj, IN	daily rain	151.4 mm (6.0 in)	77.0 mm (3.0 in)	4 years	36 of 100 (Notable)
27 May 1939	Beaver City, US	daily rain	67.6 mm (2.7 in)	32.0 mm (1.3 in)	24 years	36 of 100 (Notable)
27 May 1939	Lynch, US	monthly rain	86.6 mm (3.4 in)	24.6 mm (1.0 in)	3 years	36 of 100 (Notable)
27 May 1939	Jefferson City Wtp, US	daily rain	69.1 mm (2.7 in)	31.0 mm (1.2 in)	24 years	35 of 100 (Notable)
27 May 1939	Willow Sprg Radio Kuku, US	daily rain	47.5 mm (1.9 in)	36.8 mm (1.4 in)	14 years	35 of 100 (Notable)
27 May 1939	Kislovodsk, RU	monthly rain	44.5 mm (1.8 in)	3.8 mm (0.15 in)	48 years	34 of 100 (Routine)
27 May 1939	Dresden, US	daily rain	52.3 mm (2.1 in)	29.2 mm (1.1 in)	24 years	34 of 100 (Routine)
27 May 1939	Newport, US	daily rain	48.3 mm (1.9 in)	28.5 mm (1.1 in)	24 years	34 of 100 (Routine)
27 May 1939	Peterborough, CA	daily high max	33.3 C (91.9 F)	3.9 C (7.0 F)	57 years	31 of 100 (Routine)
27 May 1939	Sivakasi, IN	daily rain	38.1 mm (1.5 in)	23.9 mm (0.9 in)	30 years	31 of 100 (Routine)
27 May 1939	Warsaw, US	monthly rain	86.1 mm (3.4 in)	10.2 mm (0.4 in)	29 years	31 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 1939

Records set or tied on this calendar date in each year from 1797 to 1939. 1939 had 312 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 1939-05-27: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	199
10 to 20	27
20 to 30	13
30 to 40	5
40 to 50	0
50 to 60	0
60 to 70	0
70 to 80	1