Weather Records on 27 May 2009

858 weather records were set or tied worldwide on 27 May 2009. Highest significance: Armagh, GB.

Key Facts for 27 May 2009

On 27 May 2009, 858 weather records were set or tied at long-record stations worldwide.
273 were record highs and 213 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 24 monthly and 828 daily.
Armagh set a daily record precipitation of 60.0 mm (2.4 in) on 27 May 2009.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 415 records.

Record Map

858 stations

858 station records on 27 May 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Armagh	United Kingdom	Record daily precipitation	60.0 mm (2.4 in)	80 of 100 (Exceptional)
Vuonatjviken	Sweden	Record daily precipitation	25.5 mm (1.0 in)	74 of 100 (Major)
Kiruna	Sweden	Record daily precipitation	34.6 mm (1.4 in)	74 of 100 (Major)
Sparta	United States	Record daily precipitation	75.2 mm (3.0 in)	71 of 100 (Major)
Mierkenis_A	Sweden	Record daily precipitation	26.9 mm (1.1 in)	67 of 100 (Major)
Kvikkjokk-Arrenjarka	Sweden	Record daily precipitation	29.1 mm (1.1 in)	66 of 100 (Major)
Jackvik	Sweden	Record daily precipitation	39.1 mm (1.5 in)	66 of 100 (Major)
Union Springs 9 S	United States	Record daily precipitation	71.1 mm (2.8 in)	63 of 100 (Major)
Bethany	United States	Record daily precipitation	60.5 mm (2.4 in)	63 of 100 (Major)
Steigen	Norway	Record daily precipitation	30.9 mm (1.2 in)	62 of 100 (Major)
Gaffney 6 E	United States	Record daily precipitation	77.0 mm (3.0 in)	60 of 100 (Major)
Botnen I Forde	Norway	Record daily precipitation	36.4 mm (1.4 in)	57 of 100 (Notable)
Iowa Falls	United States	Record daily precipitation	68.6 mm (2.7 in)	56 of 100 (Notable)
Quinter	United States	Record daily precipitation	57.7 mm (2.3 in)	56 of 100 (Notable)
Manistee 3SE	United States	Record daily precipitation	29.2 mm (1.1 in)	54 of 100 (Notable)
Galax Radio Wbrf	United States	Record daily precipitation	82.3 mm (3.2 in)	54 of 100 (Notable)
Morrisville 6 SW	United States	Record daily precipitation	34.5 mm (1.4 in)	52 of 100 (Notable)
Cresco 1 NE	United States	Record daily precipitation	60.2 mm (2.4 in)	50 of 100 (Notable)
Sturgeon Bay Exp Farm	United States	Record daily precipitation	31.8 mm (1.3 in)	50 of 100 (Notable)
Salinillas	Mexico	Record daily precipitation	87.9 mm (3.5 in)	49 of 100 (Notable)
Cashton	United States	Record daily precipitation	55.9 mm (2.2 in)	48 of 100 (Notable)
Abisko	Sweden	Record daily precipitation	26.7 mm (1.1 in)	47 of 100 (Notable)
Aztec Ruins Nm	United States	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Svappavaara	Sweden	Record daily precipitation	27.4 mm (1.1 in)	46 of 100 (Notable)
Marengo	United States	Record daily precipitation	48.8 mm (1.9 in)	46 of 100 (Notable)
Ames 5 SE	United States	Record daily precipitation	124.2 mm (4.9 in)	46 of 100 (Notable)
Ness City	United States	Record daily precipitation	63.5 mm (2.5 in)	46 of 100 (Notable)
Eksingedal	Norway	Record daily precipitation	46.5 mm (1.8 in)	45 of 100 (Notable)
Gullbra	Norway	Record daily precipitation	44.3 mm (1.7 in)	45 of 100 (Notable)
Haukedal	Norway	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Palenque (Dge)	Mexico	Record high maximum temperature	42.8 C (109.0 F)	44 of 100 (Notable)
Killingi	Sweden	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
La Crescent Dam 7	United States	Record daily precipitation	41.9 mm (1.6 in)	44 of 100 (Notable)
Bowman Dam	United States	Record high minimum temperature	15.0 C (59.0 F)	43 of 100 (Notable)
Oakley 4W	United States	Record daily precipitation	46.5 mm (1.8 in)	42 of 100 (Notable)
Lansing Capital City AP	United States	Record daily precipitation	48.8 mm (1.9 in)	42 of 100 (Notable)
Madison Sewage Plt	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Clarion	United States	Record daily precipitation	45.7 mm (1.8 in)	41 of 100 (Notable)
Webster Springs	United States	Record high minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Hayes Center 1NW	United States	Record low maximum temperature	10.0 C (50.0 F)	41 of 100 (Notable)
Placerville	United States	Record high minimum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
Du Quoin 4 SE	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Holland Wtp	United States	Record daily precipitation	26.4 mm (1.0 in)	40 of 100 (Notable)
Scottsville 6SE	United States	Record daily precipitation	66.3 mm (2.6 in)	40 of 100 (Notable)
Yuncheng	China	Record daily precipitation	36.5 mm (1.4 in)	39 of 100 (Notable)
Nakhon Phanom	Thailand	Record daily precipitation	116.6 mm (4.6 in)	39 of 100 (Notable)
Eldora	United States	Record daily precipitation	72.4 mm (2.9 in)	39 of 100 (Notable)
Dresden	United States	Record daily precipitation	62.5 mm (2.5 in)	39 of 100 (Notable)
Rexford	United States	Record daily precipitation	91.4 mm (3.6 in)	39 of 100 (Notable)
Harmony	United States	Record daily precipitation	49.0 mm (1.9 in)	39 of 100 (Notable)
Mc Cook	United States	Record low maximum temperature	11.7 C (53.1 F)	39 of 100 (Notable)
Milesovka	Czech Republic	Record daily precipitation	39.9 mm (1.6 in)	38 of 100 (Notable)
Burlington	United States	Record low maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Buckeye	United States	Record daily precipitation	67.1 mm (2.6 in)	38 of 100 (Notable)
Haigler	United States	Record low maximum temperature	11.1 C (52.0 F)	38 of 100 (Notable)
Mc Cook	United States	Record daily precipitation	42.4 mm (1.7 in)	38 of 100 (Notable)
Lavik	Norway	Record daily precipitation	41.5 mm (1.6 in)	37 of 100 (Notable)
Mingo 6E	United States	Record daily precipitation	41.1 mm (1.6 in)	37 of 100 (Notable)
Imperial	United States	Record low maximum temperature	10.0 C (50.0 F)	37 of 100 (Notable)
Madrid	United States	Record low maximum temperature	10.6 C (51.1 F)	37 of 100 (Notable)

Counts by Type and Timescale

858 records

Records set or tied on 27 May 2009 by type: Highest daily maximum 123, Lowest daily maximum 112, Highest daily minimum 150, Lowest daily minimum 101, Heaviest daily rainfall 371, Heaviest daily snowfall 1.

Records on 27 May 2009 by type
Record type	Records
Highest daily maximum	123
Lowest daily maximum	112
Highest daily minimum	150
Lowest daily minimum	101
Heaviest daily rainfall	371
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 27 May 2009 by timescale: all-time 6, monthly 24, daily 828.

How Much Records Were Beaten By

691 broken records

Margins by which the 691 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 88.6. Ties are not counted.

Top 20 by Significance

27 May 2009

Top 20 records on 27 May 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 2009	Armagh, GB	daily rain	60.0 mm (2.4 in)	35.5 mm (1.4 in)	158 years	80 of 100 (Exceptional)
27 May 2009	Vuonatjviken, SE	daily rain	25.5 mm (1.0 in)	20.2 mm (0.8 in)	84 years	74 of 100 (Major)
27 May 2009	Kiruna, SE	daily rain	34.6 mm (1.4 in)	23.4 mm (0.9 in)	82 years	74 of 100 (Major)
27 May 2009	Sparta, US	daily rain	75.2 mm (3.0 in)	51.1 mm (2.0 in)	70 years	71 of 100 (Major)
27 May 2009	Mierkenis_A, SE	daily rain	26.9 mm (1.1 in)	15.3 mm (0.6 in)	60 years	67 of 100 (Major)
27 May 2009	Kvikkjokk-Arrenjarka, SE	daily rain	29.1 mm (1.1 in)	12.1 mm (0.5 in)	104 years	66 of 100 (Major)
27 May 2009	Jackvik, SE	daily rain	39.1 mm (1.5 in)	21.1 mm (0.8 in)	60 years	66 of 100 (Major)
27 May 2009	Union Springs 9 S, US	daily rain	71.1 mm (2.8 in)	38.1 mm (1.5 in)	102 years	63 of 100 (Major)
27 May 2009	Bethany, US	daily rain	60.5 mm (2.4 in)	32.6 mm (1.3 in)	94 years	63 of 100 (Major)
27 May 2009	Steigen, NO	daily rain	30.9 mm (1.2 in)	16.3 mm (0.6 in)	78 years	62 of 100 (Major)
27 May 2009	Gaffney 6 E, US	daily rain	77.0 mm (3.0 in)	56.7 mm (2.2 in)	35 years	60 of 100 (Major)
27 May 2009	Botnen I Forde, NO	daily rain	36.4 mm (1.4 in)	16.3 mm (0.6 in)	107 years	57 of 100 (Notable)
27 May 2009	Iowa Falls, US	daily rain	68.6 mm (2.7 in)	20.1 mm (0.8 in)	106 years	56 of 100 (Notable)
27 May 2009	Quinter, US	daily rain	57.7 mm (2.3 in)	37.9 mm (1.5 in)	55 years	56 of 100 (Notable)
27 May 2009	Manistee 3SE, US	daily rain	29.2 mm (1.1 in)	11.9 mm (0.5 in)	119 years	54 of 100 (Notable)
27 May 2009	Galax Radio Wbrf, US	daily rain	82.3 mm (3.2 in)	46.7 mm (1.8 in)	28 years	54 of 100 (Notable)
27 May 2009	Morrisville 6 SW, US	daily rain	34.5 mm (1.4 in)	14.2 mm (0.6 in)	91 years	52 of 100 (Notable)
27 May 2009	Cresco 1 NE, US	daily rain	60.2 mm (2.4 in)	25.1 mm (1.0 in)	54 years	50 of 100 (Notable)
27 May 2009	Sturgeon Bay Exp Farm, US	daily rain	31.8 mm (1.3 in)	9.4 mm (0.37 in)	103 years	50 of 100 (Notable)
27 May 2009	Salinillas, MX	daily rain	87.9 mm (3.5 in)	63.0 mm (2.5 in)	26 years	49 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 2009

Records set or tied on this calendar date in each year from 1797 to 2009. 2009 had 858 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 2009-05-27: 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	646
20 to 40	38
40 to 60	3
60 to 80	2
80 to 100	2