Weather Records on 27 May 1947

485 weather records were set or tied worldwide on 27 May 1947. Highest significance: Port Arthur, AU.

Key Facts for 27 May 1947

On 27 May 1947, 485 weather records were set or tied at long-record stations worldwide.
116 were record highs and 198 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 28 monthly and 457 daily.
Port Arthur set a monthly record daily precipitation of 80.0 mm (3.1 in) on 27 May 1947.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 417 records.

Record Map

485 stations

485 station records on 27 May 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Arthur	Australia	Record daily precipitation	80.0 mm (3.1 in)	63 of 100 (Major)
Eaglehawk Neck (Jetty Road)	Australia	Record daily precipitation	110.2 mm (4.3 in)	57 of 100 (Notable)
Kempton (Oakmore)	Australia	Record daily precipitation	42.7 mm (1.7 in)	54 of 100 (Notable)
Premaydena Hatchery	Australia	Record daily precipitation	99.6 mm (3.9 in)	54 of 100 (Notable)
Robeville	Australia	Record daily precipitation	65.0 mm (2.6 in)	53 of 100 (Notable)
Southport	Australia	Record daily precipitation	65.0 mm (2.6 in)	48 of 100 (Notable)
Arriba	United States	Record daily precipitation	82.8 mm (3.3 in)	46 of 100 (Notable)
Big Creek Ph 1	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Bindango	Australia	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Holton	United States	Record daily precipitation	68.6 mm (2.7 in)	39 of 100 (Notable)
Macknade Sugar Mill	Australia	Record daily precipitation	74.9 mm (2.9 in)	38 of 100 (Notable)
Victoria Sugar Mill	Australia	Record daily precipitation	60.5 mm (2.4 in)	38 of 100 (Notable)
Sandford (Maydena)	Australia	Record daily precipitation	49.3 mm (1.9 in)	37 of 100 (Notable)
Killora (Grasmere)	Australia	Record daily precipitation	53.1 mm (2.1 in)	35 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record daily precipitation	37.1 mm (1.5 in)	35 of 100 (Notable)
Petcheys Bay	Australia	Record daily precipitation	29.0 mm (1.1 in)	32 of 100 (Routine)
Rokeby (the Mall)	Australia	Record daily precipitation	39.9 mm (1.6 in)	32 of 100 (Routine)
Honohina 137	United States	Record daily precipitation	65.8 mm (2.6 in)	30 of 100 (Routine)
Blakefield	Australia	Record daily precipitation	27.4 mm (1.1 in)	29 of 100 (Routine)
Lake City 2 E	United States	Record daily precipitation	61.2 mm (2.4 in)	29 of 100 (Routine)
Gallatin 1W	United States	Record daily precipitation	32.8 mm (1.3 in)	29 of 100 (Routine)
Kennecott	United States	Record high maximum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Cambridge (Milford)	Australia	Record daily precipitation	37.1 mm (1.5 in)	28 of 100 (Routine)
Clayoquot	Canada	Record high maximum temperature	27.8 C (82.0 F)	28 of 100 (Routine)
Kenogami	Canada	Record daily snowfall	8.9 cm (3.5 in)	28 of 100 (Routine)
Seligman	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Crookston NW Exp STN	United States	Record low maximum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Moccasin Exp STN	United States	Record low minimum temperature	-10.6 C (12.9 F)	28 of 100 (Routine)
Kohala Mis 175.1	United States	Record daily precipitation	40.1 mm (1.6 in)	28 of 100 (Routine)
Grenfell	Canada	Record low minimum temperature	-10.0 C (14.0 F)	27 of 100 (Routine)
Richfield	United States	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Newcastle	United States	Record daily snowfall	7.6 cm (3.0 in)	27 of 100 (Routine)
Falls City Brenner Fld	United States	Record daily precipitation	55.9 mm (2.2 in)	27 of 100 (Routine)
Victoria Downs	Australia	Record daily precipitation	26.4 mm (1.0 in)	26 of 100 (Routine)
Highcroft	Australia	Record daily precipitation	77.5 mm (3.1 in)	26 of 100 (Routine)
Quatsino	Canada	Record high maximum temperature	27.8 C (82.0 F)	26 of 100 (Routine)
Araria	India	Record daily precipitation	65.5 mm (2.6 in)	26 of 100 (Routine)
Ft Assiniboine	United States	Record low minimum temperature	-6.7 C (19.9 F)	26 of 100 (Routine)
Warburton (O'Shannassy Reservo	Australia	Record daily precipitation	25.9 mm (1.0 in)	25 of 100 (Routine)
Hallock	United States	Record low maximum temperature	7.2 C (45.0 F)	25 of 100 (Routine)
Ft Myers Page Fld AP	United States	Record daily precipitation	75.7 mm (3.0 in)	25 of 100 (Routine)
Cape Bruny Lighthouse	Australia	Record daily precipitation	47.8 mm (1.9 in)	24 of 100 (Routine)
Franklin	Australia	Record daily precipitation	31.0 mm (1.2 in)	24 of 100 (Routine)
Bella Coola	Canada	Record high maximum temperature	33.3 C (91.9 F)	24 of 100 (Routine)
Stewart	Canada	Record high maximum temperature	30.0 C (86.0 F)	24 of 100 (Routine)
Fort Frances	Canada	Record low minimum temperature	-3.3 C (26.1 F)	24 of 100 (Routine)
Nenzel 20 S	United States	Record daily precipitation	28.4 mm (1.1 in)	24 of 100 (Routine)
Grand Forks UNIV (NWS)	United States	Record low maximum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Durant	United States	Record low minimum temperature	6.7 C (44.1 F)	24 of 100 (Routine)
Sunnyside	United States	Record high minimum temperature	21.1 C (70.0 F)	24 of 100 (Routine)
Hakalau 142	United States	Record daily precipitation	46.7 mm (1.8 in)	24 of 100 (Routine)
Ranfurly	Canada	Record low minimum temperature	-6.7 C (19.9 F)	23 of 100 (Routine)
Crescent City 3 NNW	United States	Record high minimum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
McCall	United States	Record high minimum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Tooele	United States	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Lake Yellowstone	United States	Record daily snowfall	5.1 cm (2.0 in)	23 of 100 (Routine)
Niulii 179	United States	Record daily precipitation	38.1 mm (1.5 in)	23 of 100 (Routine)
Cheyenne	United States	Record daily snowfall	8.6 cm (3.4 in)	23 of 100 (Routine)
Minnedosa	Canada	Record low maximum temperature	3.3 C (37.9 F)	22 of 100 (Routine)
Gainesville UNIV of Fl	United States	Record daily precipitation	28.4 mm (1.1 in)	22 of 100 (Routine)

Counts by Type and Timescale

485 records

Records set or tied on 27 May 1947 by type: Highest daily maximum 48, Lowest daily maximum 109, Highest daily minimum 68, Lowest daily minimum 89, Heaviest daily rainfall 162, Heaviest daily snowfall 9.

Records on 27 May 1947 by type
Record type	Records
Highest daily maximum	48
Lowest daily maximum	109
Highest daily minimum	68
Lowest daily minimum	89
Heaviest daily rainfall	162
Heaviest daily snowfall	9
Deepest snow cover	0

Records on 27 May 1947 by timescale: all-time 0, monthly 28, daily 457.

How Much Records Were Beaten By

413 broken records

Margins by which the 413 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 89.0. Ties are not counted.

Top 20 by Significance

27 May 1947

Top 20 records on 27 May 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 1947	Port Arthur, AU	monthly rain	80.0 mm (3.1 in)	28.7 mm (1.1 in)	14 years	63 of 100 (Major)
27 May 1947	Eaglehawk Neck (Jetty Road), AU	monthly rain	110.2 mm (4.3 in)	56.4 mm (2.2 in)	4 years	57 of 100 (Notable)
27 May 1947	Kempton (Oakmore), AU	monthly rain	42.7 mm (1.7 in)	14.8 mm (0.6 in)	13 years	54 of 100 (Notable)
27 May 1947	Premaydena Hatchery, AU	monthly rain	99.6 mm (3.9 in)	53.9 mm (2.1 in)	0 years	54 of 100 (Notable)
27 May 1947	Robeville, AU	monthly rain	65.0 mm (2.6 in)	20.5 mm (0.8 in)	0 years	53 of 100 (Notable)
27 May 1947	Southport, AU	monthly rain	65.0 mm (2.6 in)	16.5 mm (0.6 in)	22 years	48 of 100 (Notable)
27 May 1947	Arriba, US	monthly rain	82.8 mm (3.3 in)	20.3 mm (0.8 in)	30 years	46 of 100 (Notable)
27 May 1947	Big Creek Ph 1, US	daily rain	25.4 mm (1.0 in)	22.4 mm (0.9 in)	28 years	42 of 100 (Notable)
27 May 1947	Bindango, AU	daily rain	35.6 mm (1.4 in)	16.0 mm (0.6 in)	54 years	39 of 100 (Notable)
27 May 1947	Holton, US	daily rain	68.6 mm (2.7 in)	36.8 mm (1.4 in)	32 years	39 of 100 (Notable)
27 May 1947	Macknade Sugar Mill, AU	daily rain	74.9 mm (2.9 in)	33.2 mm (1.3 in)	45 years	38 of 100 (Notable)
27 May 1947	Victoria Sugar Mill, AU	daily rain	60.5 mm (2.4 in)	35.1 mm (1.4 in)	24 years	38 of 100 (Notable)
27 May 1947	Sandford (Maydena), AU	monthly rain	49.3 mm (1.9 in)	6.1 mm (0.24 in)	40 years	37 of 100 (Notable)
27 May 1947	Killora (Grasmere), AU	monthly rain	53.1 mm (2.1 in)	12.7 mm (0.5 in)	0 years	35 of 100 (Notable)
27 May 1947	Hobart (Ellerslie Road), AU	daily rain	37.1 mm (1.5 in)	9.2 mm (0.36 in)	41 years	35 of 100 (Notable)
27 May 1947	Petcheys Bay, AU	daily rain	29.0 mm (1.1 in)	13.0 mm (0.5 in)	13 years	32 of 100 (Routine)
27 May 1947	Rokeby (the Mall), AU	daily rain	39.9 mm (1.6 in)	13.2 mm (0.5 in)	13 years	32 of 100 (Routine)
27 May 1947	Honohina 137, US	daily rain	65.8 mm (2.6 in)	28.5 mm (1.1 in)	34 years	30 of 100 (Routine)
27 May 1947	Blakefield, AU	daily rain	27.4 mm (1.1 in)	24.4 mm (1.0 in)	8 years	29 of 100 (Routine)
27 May 1947	Lake City 2 E, US	daily rain	61.2 mm (2.4 in)	26.1 mm (1.0 in)	14 years	29 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 1947

Records set or tied on this calendar date in each year from 1797 to 1947. 1947 had 485 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 1947-05-27: 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 20	391
20 to 40	16
40 to 60	3
60 to 80	1
80 to 100	2