Weather Records on 28 May 2009

733 weather records were set or tied worldwide on 28 May 2009. Highest significance: Armagh, GB.

Key Facts for 28 May 2009

On 28 May 2009, 733 weather records were set or tied at long-record stations worldwide.
282 were record highs and 260 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 23 monthly and 708 daily.
Armagh set a daily record precipitation of 50.0 mm (2.0 in) on 28 May 2009.
Across 161 earlier years (1794 to 2026) the same calendar date averaged 440 records.

Record Map

733 stations

733 station records on 28 May 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 May 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Armagh	United Kingdom	Record daily precipitation	50.0 mm (2.0 in)	80 of 100 (Exceptional)
Bayard	United States	Record daily precipitation	75.4 mm (3.0 in)	62 of 100 (Major)
Fremont	United States	Record daily precipitation	76.2 mm (3.0 in)	57 of 100 (Notable)
Williamston 3NE	United States	Record daily precipitation	59.9 mm (2.4 in)	55 of 100 (Notable)
Lowville	United States	Record daily precipitation	29.5 mm (1.2 in)	54 of 100 (Notable)
Cornwall	United States	Record daily precipitation	59.2 mm (2.3 in)	54 of 100 (Notable)
Kalakan	Russia	Record daily precipitation	36.9 mm (1.5 in)	53 of 100 (Notable)
Bethel 4 N	United States	Record daily precipitation	48.3 mm (1.9 in)	52 of 100 (Notable)
Pt Comfort	United States	Record daily precipitation	131.6 mm (5.2 in)	51 of 100 (Notable)
Wanakena Rngr School	United States	Record daily precipitation	42.2 mm (1.7 in)	50 of 100 (Notable)
Arellano	Mexico	Record daily precipitation	47.8 mm (1.9 in)	48 of 100 (Notable)
Bowling Green 1 W	United States	Record daily precipitation	77.5 mm (3.1 in)	47 of 100 (Notable)
Hanover	United States	Record daily precipitation	35.8 mm (1.4 in)	47 of 100 (Notable)
Gomez Farias	Mexico	Record daily precipitation	105.4 mm (4.1 in)	46 of 100 (Notable)
Garnett 1 E	United States	Record low maximum temperature	15.0 C (59.0 F)	46 of 100 (Notable)
Merrill	United States	Record daily precipitation	38.4 mm (1.5 in)	45 of 100 (Notable)
Rochester Gtr Intl	United States	Record daily precipitation	43.9 mm (1.7 in)	45 of 100 (Notable)
Union Village Dam	United States	Record daily precipitation	43.9 mm (1.7 in)	43 of 100 (Notable)
Middletown Harrisburg Intl AP	United States	Record daily precipitation	37.8 mm (1.5 in)	43 of 100 (Notable)
Salisbury 2 N	United States	Record daily precipitation	58.2 mm (2.3 in)	42 of 100 (Notable)
Gage AP	United States	Record low minimum temperature	4.4 C (39.9 F)	42 of 100 (Notable)
Yates Ctr	United States	Record low maximum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Haverhill	United States	Record low maximum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Lowell	United States	Record low maximum temperature	10.0 C (50.0 F)	41 of 100 (Notable)
Webster Springs	United States	Record high minimum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Gonzalez	Mexico	Record low minimum temperature	15.0 C (59.0 F)	40 of 100 (Notable)
Palmillas	Mexico	Record daily precipitation	46.0 mm (1.8 in)	40 of 100 (Notable)
Holton	United States	Record low maximum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Sandy Hook	United States	Record low maximum temperature	16.1 C (61.0 F)	40 of 100 (Notable)
Watertown	United States	Record daily precipitation	42.7 mm (1.7 in)	40 of 100 (Notable)
Rochester	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Sabinas	Mexico	Record daily precipitation	91.9 mm (3.6 in)	38 of 100 (Notable)
Glencliff 2	United States	Record daily precipitation	32.8 mm (1.3 in)	38 of 100 (Notable)
Portage Wwtp	United States	Record low maximum temperature	11.7 C (53.1 F)	38 of 100 (Notable)
Molino Blanco	Mexico	Record daily precipitation	49.3 mm (1.9 in)	37 of 100 (Notable)
Bowling Green	United States	Record daily precipitation	78.7 mm (3.1 in)	37 of 100 (Notable)
E Wareham	United States	Record low maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Roseburg Rgnl AP	United States	Record high maximum temperature	32.2 C (90.0 F)	37 of 100 (Notable)
Matagorda #2	United States	Record daily precipitation	79.5 mm (3.1 in)	36 of 100 (Notable)
Songli	Norway	Record daily precipitation	31.1 mm (1.2 in)	35 of 100 (Notable)
Talkeetna AP	United States	Record low maximum temperature	7.8 C (46.0 F)	35 of 100 (Notable)
Chernjaevo	Russia	Record high minimum temperature	15.5 C (59.9 F)	34 of 100 (Routine)
Caneyville 1W	United States	Record daily precipitation	55.1 mm (2.2 in)	34 of 100 (Routine)
Benton 5 SW	United States	Record daily precipitation	32.0 mm (1.3 in)	34 of 100 (Routine)
Middleton	United States	Record low maximum temperature	10.0 C (50.0 F)	33 of 100 (Routine)
Goliad	United States	Record daily precipitation	102.9 mm (4.1 in)	33 of 100 (Routine)
Papantla	Mexico	Record daily precipitation	88.9 mm (3.5 in)	32 of 100 (Routine)
Fredonia	United States	Record high minimum temperature	9.4 C (48.9 F)	32 of 100 (Routine)
Aberdeen Exp STN	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Anahuac	United States	Record low minimum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Rutland	United States	Record low maximum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Bedford Hanscom Fld	United States	Record low maximum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Santa Ana Tlapacoyan	Mexico	Record high maximum temperature	40.0 C (104.0 F)	31 of 100 (Routine)
Haugan 1 W	United States	Record low minimum temperature	-6.7 C (19.9 F)	31 of 100 (Routine)
Portland Jetport	United States	Record low maximum temperature	9.4 C (48.9 F)	31 of 100 (Routine)
Worcester	United States	Record low maximum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Hachijojima	Japan	Record daily precipitation	106.4 mm (4.2 in)	30 of 100 (Routine)
Huajimic	Mexico	Record low maximum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
El Cuchillo	Mexico	Record low minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Sanford 2 NNW	United States	Record low maximum temperature	9.4 C (48.9 F)	30 of 100 (Routine)

Counts by Type and Timescale

733 records

Records set or tied on 28 May 2009 by type: Highest daily maximum 118, Lowest daily maximum 156, Highest daily minimum 164, Lowest daily minimum 104, Heaviest daily rainfall 190, Heaviest daily snowfall 1.

Records on 28 May 2009 by type
Record type	Records
Highest daily maximum	118
Lowest daily maximum	156
Highest daily minimum	164
Lowest daily minimum	104
Heaviest daily rainfall	190
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 28 May 2009 by timescale: all-time 2, monthly 23, daily 708.

How Much Records Were Beaten By

509 broken records

Margins by which the 509 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.8. Ties are not counted.

Top 20 by Significance

28 May 2009

Top 20 records on 28 May 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 May 2009	Armagh, GB	daily rain	50.0 mm (2.0 in)	23.6 mm (0.9 in)	116 years	80 of 100 (Exceptional)
28 May 2009	Bayard, US	daily rain	75.4 mm (3.0 in)	31.5 mm (1.2 in)	64 years	62 of 100 (Major)
28 May 2009	Fremont, US	daily rain	76.2 mm (3.0 in)	52.8 mm (2.1 in)	24 years	57 of 100 (Notable)
28 May 2009	Williamston 3NE, US	daily rain	59.9 mm (2.4 in)	32.0 mm (1.3 in)	40 years	55 of 100 (Notable)
28 May 2009	Lowville, US	daily rain	29.5 mm (1.2 in)	11.7 mm (0.5 in)	112 years	54 of 100 (Notable)
28 May 2009	Cornwall, US	daily rain	59.2 mm (2.3 in)	19.1 mm (0.8 in)	70 years	54 of 100 (Notable)
28 May 2009	Kalakan, RU	daily rain	36.9 mm (1.5 in)	23.0 mm (0.9 in)	26 years	53 of 100 (Notable)
28 May 2009	Bethel 4 N, US	daily rain	48.3 mm (1.9 in)	38.6 mm (1.5 in)	24 years	52 of 100 (Notable)
28 May 2009	Pt Comfort, US	daily rain	131.6 mm (5.2 in)	83.8 mm (3.3 in)	39 years	51 of 100 (Notable)
28 May 2009	Wanakena Rngr School, US	daily rain	42.2 mm (1.7 in)	13.0 mm (0.5 in)	74 years	50 of 100 (Notable)
28 May 2009	Arellano, MX	daily rain	47.8 mm (1.9 in)	35.6 mm (1.4 in)	8 years	48 of 100 (Notable)
28 May 2009	Bowling Green 1 W, US	daily rain	77.5 mm (3.1 in)	33.8 mm (1.3 in)	52 years	47 of 100 (Notable)
28 May 2009	Hanover, US	daily rain	35.8 mm (1.4 in)	6.8 mm (0.27 in)	103 years	47 of 100 (Notable)
28 May 2009	Gomez Farias, MX	daily rain	105.4 mm (4.1 in)	67.0 mm (2.6 in)	28 years	46 of 100 (Notable)
28 May 2009	Garnett 1 E, US	daily low max	15.0 C (59.0 F)	2.8 C (5.0 F)	102 years	46 of 100 (Notable)
28 May 2009	Merrill, US	daily rain	38.4 mm (1.5 in)	14.3 mm (0.6 in)	68 years	45 of 100 (Notable)
28 May 2009	Rochester Gtr Intl, US	daily rain	43.9 mm (1.7 in)	22.3 mm (0.9 in)	24 years	45 of 100 (Notable)
28 May 2009	Union Village Dam, US	daily rain	43.9 mm (1.7 in)	19.5 mm (0.8 in)	58 years	43 of 100 (Notable)
28 May 2009	Middletown Harrisburg Intl AP, US	daily rain	37.8 mm (1.5 in)	24.6 mm (1.0 in)	48 years	43 of 100 (Notable)
28 May 2009	Salisbury 2 N, US	daily rain	58.2 mm (2.3 in)	16.3 mm (0.6 in)	52 years	42 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

1794 to 2009

Records set or tied on this calendar date in each year from 1794 to 2009. 2009 had 733 records.

Counts for years before the ledger starts come from the same station rules.

Records on 05-28 in each year
Year	Records
1794	1
1797	1
1811	1
1824	1
1832	1
1836	5
1840	1
1841	1
1847	2
1848	1
1851	2
1857	1
1858	1
1863	1
1865	1
1868	4
1869	1
1876	1
1879	2
1880	2
1884	3
1885	2
1887	1
1888	3
1889	3
1890	3
1891	2
1892	9
1893	2
1894	9
1895	1
1896	5
1897	6
1898	1
1899	6
1900	4
1901	6
1902	12
1903	9
1904	6
1905	14
1906	31
1907	36
1908	26
1909	7
1910	18
1911	42
1912	19
1913	28
1914	58
1915	27
1916	24
1917	36
1918	43
1919	43
1920	33
1921	87
1922	80
1923	72
1924	109
1925	122
1926	143
1927	301
1928	150
1929	355
1930	131
1931	574
1932	171
1933	212
1934	537
1935	186
1936	337
1937	212
1938	285
1939	433
1940	217
1941	711
1942	279
1943	238
1944	330
1945	331
1946	413
1947	1,049
1948	333
1949	321
1950	276
1951	503
1952	314
1953	392
1954	382
1955	413
1956	456
1957	272
1958	792
1959	557
1960	431
1961	1,026
1962	859
1963	368
1964	394
1965	536
1966	284
1967	350
1968	610
1969	863
1970	310
1971	767
1972	575
1973	834
1974	585
1975	397
1976	914
1977	826
1978	802
1979	521
1980	808
1981	711
1982	1,204
1983	1,666
1984	1,357
1985	914
1986	591
1987	1,139
1988	806
1989	817
1990	1,024
1991	1,647
1992	1,610
1993	870
1994	981
1995	1,078
1996	1,438
1997	1,108
1998	1,043
1999	952
2000	1,229
2001	1,024
2002	612
2003	1,049
2004	875
2005	1,032
2006	1,566
2007	1,084
2008	902
2009	733
2010	937
2011	1,188
2012	1,237
2013	541
2014	781
2015	487
2016	625
2017	710
2018	1,348
2019	973
2020	875
2021	537
2022	476
2023	445
2024	907
2025	663
2026	1,053

Download the Data

Data for records on 2009-05-28: 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	482
20 to 40	21
40 to 60	4
60 to 80	1
80 to 100	1