Weather Records on 27 May 1987

1,037 weather records were set or tied worldwide on 27 May 1987. Highest significance: Winfield 3NE, US.

Key Facts for 27 May 1987

On 27 May 1987, 1,037 weather records were set or tied at long-record stations worldwide.
301 were record highs and 378 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 42 monthly and 994 daily.
Winfield 3NE set a daily record precipitation of 105.4 mm (4.1 in) on 27 May 1987.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 414 records.

Record Map

1,037 stations

1,037 station records on 27 May 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Winfield 3NE	United States	Record daily precipitation	105.4 mm (4.1 in)	71 of 100 (Major)
Natrona Lock 4	United States	Record daily precipitation	78.2 mm (3.1 in)	68 of 100 (Major)
Lovell	United States	Record daily precipitation	32.8 mm (1.3 in)	65 of 100 (Major)
Mystic Lake	United States	Record daily precipitation	49.5 mm (1.9 in)	63 of 100 (Major)
Geilo	Norway	Record daily precipitation	42.5 mm (1.7 in)	61 of 100 (Major)
Buffalo Bill Dam	United States	Record daily precipitation	46.7 mm (1.8 in)	60 of 100 (Major)
Butte 5SE	United States	Record daily precipitation	50.8 mm (2.0 in)	59 of 100 (Notable)
Schenley Lock 5	United States	Record daily precipitation	47.0 mm (1.9 in)	59 of 100 (Notable)
Basin	United States	Record daily precipitation	30.7 mm (1.2 in)	59 of 100 (Notable)
Red Lodge	United States	Record daily precipitation	60.7 mm (2.4 in)	57 of 100 (Notable)
Chickasha Exp STN	United States	Record daily precipitation	168.1 mm (6.6 in)	56 of 100 (Notable)
Union City 3 SE	United States	Record daily precipitation	163.8 mm (6.4 in)	56 of 100 (Notable)
Hardin	United States	Record daily precipitation	35.6 mm (1.4 in)	53 of 100 (Notable)
Joliet	United States	Record daily precipitation	64.0 mm (2.5 in)	53 of 100 (Notable)
Roberts 1 W	United States	Record daily precipitation	58.4 mm (2.3 in)	53 of 100 (Notable)
Hickman	United States	Record daily precipitation	63.5 mm (2.5 in)	53 of 100 (Notable)
Spur	United States	Record daily precipitation	59.9 mm (2.4 in)	52 of 100 (Notable)
Morgantown L&D	United States	Record daily precipitation	62.5 mm (2.5 in)	52 of 100 (Notable)
UNIV of Hawaii 713	United States	Record daily precipitation	48.8 mm (1.9 in)	52 of 100 (Notable)
Divnoe	Russia	Record daily precipitation	42.6 mm (1.7 in)	51 of 100 (Notable)
Bridger 2 N	United States	Record daily precipitation	53.6 mm (2.1 in)	51 of 100 (Notable)
Helena 1 SSE	United States	Record daily precipitation	85.3 mm (3.4 in)	50 of 100 (Notable)
Post	United States	Record daily precipitation	55.9 mm (2.2 in)	49 of 100 (Notable)
Emblem	United States	Record daily precipitation	53.3 mm (2.1 in)	49 of 100 (Notable)
Harrietville	Australia	Record daily precipitation	53.6 mm (2.1 in)	48 of 100 (Notable)
Elgin	United States	Record daily precipitation	75.2 mm (3.0 in)	48 of 100 (Notable)
Laurel 3 WSW	United States	Record daily precipitation	48.0 mm (1.9 in)	48 of 100 (Notable)
Pt Marion Lock 8	United States	Record daily precipitation	46.2 mm (1.8 in)	48 of 100 (Notable)
Geyser Rch	United States	Record daily precipitation	40.6 mm (1.6 in)	47 of 100 (Notable)
Great Salt Plains Dam	United States	Record daily precipitation	73.4 mm (2.9 in)	47 of 100 (Notable)
Plattsmouth 1E	United States	Record daily precipitation	57.7 mm (2.3 in)	46 of 100 (Notable)
Vandergrift	United States	Record daily precipitation	65.3 mm (2.6 in)	46 of 100 (Notable)
Rosalia 1NW	United States	Record daily precipitation	72.4 mm (2.9 in)	45 of 100 (Notable)
Sedan	United States	Record daily precipitation	86.4 mm (3.4 in)	45 of 100 (Notable)
Marion 2 N	United States	Record daily precipitation	54.9 mm (2.2 in)	45 of 100 (Notable)
West Hickory River	United States	Record daily precipitation	44.5 mm (1.8 in)	45 of 100 (Notable)
Elk City 1NE	United States	Record daily precipitation	25.7 mm (1.0 in)	44 of 100 (Notable)
Billings Intl AP	United States	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Eureka 1E	United States	Record daily precipitation	67.8 mm (2.7 in)	43 of 100 (Notable)
Jordan	United States	Record daily precipitation	35.1 mm (1.4 in)	43 of 100 (Notable)
Enid	United States	Record daily precipitation	97.0 mm (3.8 in)	43 of 100 (Notable)
Heart Mtn	United States	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Valier	United States	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Underwood	United States	Record daily precipitation	50.0 mm (2.0 in)	42 of 100 (Notable)
Tunhovd	Norway	Record daily precipitation	28.6 mm (1.1 in)	41 of 100 (Notable)
Fishtail	United States	Record daily precipitation	46.2 mm (1.8 in)	41 of 100 (Notable)
Punchbowl Crater 709	United States	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Bundaberg Post Office	Australia	Record high maximum temperature	28.7 C (83.7 F)	40 of 100 (Notable)
Livingston 12 S	United States	Record daily precipitation	36.6 mm (1.4 in)	40 of 100 (Notable)
Upper Sandusky	United States	Record daily precipitation	39.4 mm (1.6 in)	40 of 100 (Notable)
Burbank	United States	Record daily precipitation	115.8 mm (4.6 in)	40 of 100 (Notable)
Oxford	United States	Record daily precipitation	77.0 mm (3.0 in)	39 of 100 (Notable)
Grass Range	United States	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
Deaver	United States	Record daily precipitation	43.7 mm (1.7 in)	39 of 100 (Notable)
Oklahoma Cy Will Rogers World	United States	Record daily precipitation	136.7 mm (5.4 in)	39 of 100 (Notable)
Ponca City Muni AP	United States	Record daily precipitation	109.7 mm (4.3 in)	39 of 100 (Notable)
Prescott	United States	Record low maximum temperature	15.6 C (60.1 F)	38 of 100 (Notable)
Billings	United States	Record daily precipitation	92.7 mm (3.6 in)	38 of 100 (Notable)
Kurnool	India	Record daily precipitation	58.9 mm (2.3 in)	37 of 100 (Notable)
Carrollton Lock 1	United States	Record high maximum temperature	32.2 C (90.0 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,037 records

Records set or tied on 27 May 1987 by type: Highest daily maximum 114, Lowest daily maximum 241, Highest daily minimum 187, Lowest daily minimum 137, Heaviest daily rainfall 356, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 27 May 1987 by type
Record type	Records
Highest daily maximum	114
Lowest daily maximum	241
Highest daily minimum	187
Lowest daily minimum	137
Heaviest daily rainfall	356
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 27 May 1987 by timescale: all-time 1, monthly 42, daily 994.

How Much Records Were Beaten By

809 broken records

Margins by which the 809 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 81.7. Ties are not counted.

Top 20 by Significance

27 May 1987

Top 20 records on 27 May 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 1987	Winfield 3NE, US	daily rain	105.4 mm (4.1 in)	72.4 mm (2.9 in)	76 years	71 of 100 (Major)
27 May 1987	Natrona Lock 4, US	monthly rain	78.2 mm (3.1 in)	29.2 mm (1.1 in)	56 years	68 of 100 (Major)
27 May 1987	Lovell, US	daily rain	32.8 mm (1.3 in)	25.2 mm (1.0 in)	56 years	65 of 100 (Major)
27 May 1987	Mystic Lake, US	daily rain	49.5 mm (1.9 in)	31.0 mm (1.2 in)	57 years	63 of 100 (Major)
27 May 1987	Geilo, NO	monthly rain	42.5 mm (1.7 in)	8.2 mm (0.32 in)	88 years	61 of 100 (Major)
27 May 1987	Buffalo Bill Dam, US	daily rain	46.7 mm (1.8 in)	37.8 mm (1.5 in)	40 years	60 of 100 (Major)
27 May 1987	Butte 5SE, US	daily rain	50.8 mm (2.0 in)	33.5 mm (1.3 in)	57 years	59 of 100 (Notable)
27 May 1987	Schenley Lock 5, US	daily rain	47.0 mm (1.9 in)	21.6 mm (0.9 in)	80 years	59 of 100 (Notable)
27 May 1987	Basin, US	daily rain	30.7 mm (1.2 in)	19.0 mm (0.7 in)	56 years	59 of 100 (Notable)
27 May 1987	Red Lodge, US	daily rain	60.7 mm (2.4 in)	37.1 mm (1.5 in)	41 years	57 of 100 (Notable)
27 May 1987	Chickasha Exp STN, US	monthly rain	168.1 mm (6.6 in)	81.7 mm (3.2 in)	12 years	56 of 100 (Notable)
27 May 1987	Union City 3 SE, US	monthly rain	163.8 mm (6.4 in)	54.6 mm (2.1 in)	38 years	56 of 100 (Notable)
27 May 1987	Hardin, US	daily rain	35.6 mm (1.4 in)	29.0 mm (1.1 in)	32 years	53 of 100 (Notable)
27 May 1987	Joliet, US	daily rain	64.0 mm (2.5 in)	51.3 mm (2.0 in)	33 years	53 of 100 (Notable)
27 May 1987	Roberts 1 W, US	daily rain	58.4 mm (2.3 in)	48.2 mm (1.9 in)	33 years	53 of 100 (Notable)
27 May 1987	Hickman, US	daily rain	63.5 mm (2.5 in)	25.4 mm (1.0 in)	84 years	53 of 100 (Notable)
27 May 1987	Spur, US	daily rain	59.9 mm (2.4 in)	44.2 mm (1.7 in)	42 years	52 of 100 (Notable)
27 May 1987	Morgantown L&D, US	daily rain	62.5 mm (2.5 in)	28.7 mm (1.1 in)	49 years	52 of 100 (Notable)
27 May 1987	UNIV of Hawaii 713, US	daily rain	48.8 mm (1.9 in)	33.1 mm (1.3 in)	44 years	52 of 100 (Notable)
27 May 1987	Divnoe, RU	daily rain	42.6 mm (1.7 in)	30.0 mm (1.2 in)	20 years	51 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 1987

Records set or tied on this calendar date in each year from 1797 to 1987. 1987 had 1,037 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 1987-05-27: 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 20	739
20 to 40	51
40 to 60	16
60 to 80	2
80 to 100	1