Weather Records on 23 May 2009

805 weather records were set or tied worldwide on 23 May 2009. Highest significance: Armagh, GB.

Key Facts for 23 May 2009

On 23 May 2009, 805 weather records were set or tied at long-record stations worldwide.
351 were record highs and 229 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 785 daily.
Armagh set a daily record precipitation of 60.0 mm (2.4 in) on 23 May 2009.
Across 158 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

805 stations

805 station records on 23 May 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 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)
Toorooka (Moparrabah)	Australia	Record daily precipitation	100.0 mm (3.9 in)	74 of 100 (Major)
Hillgrove (Hillview)	Australia	Record daily precipitation	64.0 mm (2.5 in)	64 of 100 (Major)
Abu Hamed	Sudan	Record daily precipitation	72.1 mm (2.8 in)	60 of 100 (Major)
Pennant Hills (Yarrara Road)	Australia	Record daily precipitation	49.6 mm (2.0 in)	59 of 100 (Notable)
Ebor (Glenowen)	Australia	Record daily precipitation	100.0 mm (3.9 in)	58 of 100 (Notable)
Jeogla Station	Australia	Record daily precipitation	93.0 mm (3.7 in)	58 of 100 (Notable)
Ebor (Wongwibinda)	Australia	Record daily precipitation	84.8 mm (3.3 in)	58 of 100 (Notable)
Ebor (the Racecourse)	Australia	Record daily precipitation	160.0 mm (6.3 in)	56 of 100 (Notable)
Buangor (Biranga)	Australia	Record daily precipitation	40.0 mm (1.6 in)	54 of 100 (Notable)
Uralla (Blue Nobby)	Australia	Record daily precipitation	76.2 mm (3.0 in)	53 of 100 (Notable)
Ebor (Maplewood)	Australia	Record daily precipitation	190.0 mm (7.5 in)	51 of 100 (Notable)
Girralong	Australia	Record daily precipitation	173.4 mm (6.8 in)	51 of 100 (Notable)
Leigh (Rolling Acres)	Australia	Record daily precipitation	250.0 mm (9.8 in)	51 of 100 (Notable)
Tyringham (Glenferneigh (Ring	Australia	Record daily precipitation	174.0 mm (6.9 in)	51 of 100 (Notable)
Boulder	United States	Record daily precipitation	27.2 mm (1.1 in)	51 of 100 (Notable)
Thumb Creek (Figtree)	Australia	Record daily precipitation	161.2 mm (6.3 in)	50 of 100 (Notable)
Walcha (Karori)	Australia	Record daily precipitation	74.0 mm (2.9 in)	48 of 100 (Notable)
Orama (Darkwood Road)	Australia	Record daily precipitation	158.0 mm (6.2 in)	47 of 100 (Notable)
Sunset Crater Nm	United States	Record daily precipitation	37.8 mm (1.5 in)	47 of 100 (Notable)
Little Chorkerup	Australia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Birdwood	Australia	Record daily precipitation	108.8 mm (4.3 in)	46 of 100 (Notable)
W Palm Beach Intl AP	United States	Record daily precipitation	135.4 mm (5.3 in)	46 of 100 (Notable)
Presa Media Luna	Mexico	Record low maximum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Bellbrook (East Street)	Australia	Record daily precipitation	98.4 mm (3.9 in)	44 of 100 (Notable)
Cangai (Smelter Creek)	Australia	Record daily precipitation	59.6 mm (2.3 in)	42 of 100 (Notable)
Yarrowitch (Maretto)	Australia	Record daily precipitation	84.0 mm (3.3 in)	42 of 100 (Notable)
Lower Creek (Cedar Park)	Australia	Record daily precipitation	103.0 mm (4.1 in)	41 of 100 (Notable)
Waynesboro 2 W	United States	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Page AP	United States	Record daily precipitation	37.1 mm (1.5 in)	40 of 100 (Notable)
Yangjiang	China	Record daily precipitation	201.9 mm (7.9 in)	39 of 100 (Notable)
El Tule	Mexico	Record low maximum temperature	16.7 C (62.1 F)	39 of 100 (Notable)
Tonto Ck Fish Hat No2	United States	Record daily precipitation	33.3 mm (1.3 in)	39 of 100 (Notable)
Balmorhea	United States	Record low maximum temperature	18.3 C (64.9 F)	39 of 100 (Notable)
Number One (Murrays Creek)	Australia	Record daily precipitation	72.2 mm (2.8 in)	38 of 100 (Notable)
Wollombi (Narone Creek Rd)	Australia	Record daily precipitation	38.6 mm (1.5 in)	38 of 100 (Notable)
Little Grove	Australia	Record daily precipitation	40.0 mm (1.6 in)	37 of 100 (Notable)
Staritsa	Russia	Record daily precipitation	43.8 mm (1.7 in)	37 of 100 (Notable)
Ft Valley	United States	Record high minimum temperature	6.7 C (44.1 F)	37 of 100 (Notable)
Lyon - St Exupery	France	Record high maximum temperature	30.9 C (87.6 F)	36 of 100 (Notable)
Tasiilaq	Greenland [Denmark]	Record high minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Meridian Key Fld	United States	Record daily precipitation	62.7 mm (2.5 in)	36 of 100 (Notable)
Comboyne South	Australia	Record daily precipitation	145.0 mm (5.7 in)	35 of 100 (Notable)
Krambach (Tipperary)	Australia	Record daily precipitation	65.0 mm (2.6 in)	35 of 100 (Notable)
Montelimar	France	Record high maximum temperature	30.8 C (87.4 F)	35 of 100 (Notable)
El Palmito	Mexico	Record low maximum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Lisboa Geofisica	Portugal	Record daily precipitation	36.6 mm (1.4 in)	35 of 100 (Notable)
Pandale 1 N	United States	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Santo Domingo	Dominican Republic	Record low maximum temperature	28.2 C (82.8 F)	34 of 100 (Routine)
Comboyne Post Office	Australia	Record daily precipitation	143.0 mm (5.6 in)	33 of 100 (Routine)
Yallambie (Mount Auban)	Australia	Record daily precipitation	40.0 mm (1.6 in)	33 of 100 (Routine)
Thiruvananthapuram	India	Record high maximum temperature	38.4 C (101.1 F)	33 of 100 (Routine)
Irtyshsk	Kazakhstan	Record low maximum temperature	6.0 C (42.8 F)	33 of 100 (Routine)
Quito	Mexico	Record high maximum temperature	38.9 C (102.0 F)	33 of 100 (Routine)
Ajan	Russia	Record high minimum temperature	5.1 C (41.2 F)	33 of 100 (Routine)
Dauphin Is #2	United States	Record daily precipitation	99.8 mm (3.9 in)	33 of 100 (Routine)
Frankland	Australia	Record daily precipitation	26.0 mm (1.0 in)	32 of 100 (Routine)
Carlsbad	United States	Record low maximum temperature	18.3 C (64.9 F)	32 of 100 (Routine)
El Vado Dam	United States	Record high minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Kodiak AP	United States	Record daily precipitation	54.1 mm (2.1 in)	32 of 100 (Routine)

Counts by Type and Timescale

805 records

Records set or tied on 23 May 2009 by type: Highest daily maximum 144, Lowest daily maximum 138, Highest daily minimum 207, Lowest daily minimum 91, Heaviest daily rainfall 225.

Records on 23 May 2009 by type
Record type	Records
Highest daily maximum	144
Lowest daily maximum	138
Highest daily minimum	207
Lowest daily minimum	91
Heaviest daily rainfall	225
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 23 May 2009 by timescale: all-time 0, monthly 20, daily 785.

How Much Records Were Beaten By

633 broken records

Margins by which the 633 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 157.6. Ties are not counted.

Top 20 by Significance

23 May 2009

Top 20 records on 23 May 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 May 2009	Armagh, GB	daily rain	60.0 mm (2.4 in)	40.1 mm (1.6 in)	150 years	80 of 100 (Exceptional)
23 May 2009	Toorooka (Moparrabah), AU	daily rain	100.0 mm (3.9 in)	53.8 mm (2.1 in)	103 years	74 of 100 (Major)
23 May 2009	Hillgrove (Hillview), AU	daily rain	64.0 mm (2.5 in)	28.2 mm (1.1 in)	108 years	64 of 100 (Major)
23 May 2009	Abu Hamed, SD	daily rain	72.1 mm (2.8 in)	72.1 mm (2.8 in)	51 years	60 of 100 (Major)
23 May 2009	Pennant Hills (Yarrara Road), AU	daily rain	49.6 mm (2.0 in)	33.9 mm (1.3 in)	103 years	59 of 100 (Notable)
23 May 2009	Ebor (Glenowen), AU	daily rain	100.0 mm (3.9 in)	60.4 mm (2.4 in)	28 years	58 of 100 (Notable)
23 May 2009	Jeogla Station, AU	daily rain	93.0 mm (3.7 in)	62.0 mm (2.4 in)	28 years	58 of 100 (Notable)
23 May 2009	Ebor (Wongwibinda), AU	daily rain	84.8 mm (3.3 in)	42.8 mm (1.7 in)	28 years	58 of 100 (Notable)
23 May 2009	Ebor (the Racecourse), AU	daily rain	160.0 mm (6.3 in)	104.8 mm (4.1 in)	28 years	56 of 100 (Notable)
23 May 2009	Buangor (Biranga), AU	daily rain	40.0 mm (1.6 in)	26.0 mm (1.0 in)	30 years	54 of 100 (Notable)
23 May 2009	Uralla (Blue Nobby), AU	daily rain	76.2 mm (3.0 in)	47.2 mm (1.9 in)	28 years	53 of 100 (Notable)
23 May 2009	Ebor (Maplewood), AU	daily rain	190.0 mm (7.5 in)	142.6 mm (5.6 in)	28 years	51 of 100 (Notable)
23 May 2009	Girralong, AU	daily rain	173.4 mm (6.8 in)	101.6 mm (4.0 in)	28 years	51 of 100 (Notable)
23 May 2009	Leigh (Rolling Acres), AU	daily rain	250.0 mm (9.8 in)	157.6 mm (6.2 in)	28 years	51 of 100 (Notable)
23 May 2009	Tyringham (Glenferneigh (Ring, AU	daily rain	174.0 mm (6.9 in)	115.0 mm (4.5 in)	28 years	51 of 100 (Notable)
23 May 2009	Boulder, US	daily rain	27.2 mm (1.1 in)	15.3 mm (0.6 in)	52 years	51 of 100 (Notable)
23 May 2009	Thumb Creek (Figtree), AU	daily rain	161.2 mm (6.3 in)	97.8 mm (3.9 in)	28 years	50 of 100 (Notable)
23 May 2009	Walcha (Karori), AU	daily rain	74.0 mm (2.9 in)	38.0 mm (1.5 in)	28 years	48 of 100 (Notable)
23 May 2009	Orama (Darkwood Road), AU	daily rain	158.0 mm (6.2 in)	140.0 mm (5.5 in)	14 years	47 of 100 (Notable)
23 May 2009	Sunset Crater Nm, US	daily rain	37.8 mm (1.5 in)	30.2 mm (1.2 in)	12 years	47 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

1793 to 2009

Records set or tied on this calendar date in each year from 1793 to 2009. 2009 had 805 records.

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

Records on 05-23 in each year
Year	Records
1793	1
1794	1
1798	1
1817	1
1818	1
1837	3
1845	1
1847	2
1857	1
1863	1
1865	2
1866	5
1867	7
1870	2
1871	1
1875	1
1877	1
1878	1
1880	1
1884	2
1885	2
1886	4
1887	1
1889	2
1891	11
1893	3
1894	1
1895	3
1896	4
1897	3
1898	8
1899	3
1900	12
1901	3
1902	12
1903	6
1904	14
1905	10
1906	23
1907	11
1908	13
1909	23
1910	26
1911	39
1912	31
1913	29
1914	33
1915	13
1916	44
1917	58
1918	36
1919	120
1920	37
1921	92
1922	82
1923	99
1924	230
1925	325
1926	204
1927	243
1928	177
1929	221
1930	199
1931	719
1932	358
1933	443
1934	203
1935	369
1936	568
1937	156
1938	390
1939	415
1940	324
1941	676
1942	235
1943	342
1944	784
1945	241
1946	311
1947	285
1948	273
1949	612
1950	490
1951	400
1952	597
1953	777
1954	496
1955	650
1956	498
1957	653
1958	744
1959	486
1960	395
1961	412
1962	677
1963	1,153
1964	964
1965	477
1966	391
1967	1,055
1968	578
1969	437
1970	314
1971	659
1972	449
1973	371
1974	678
1975	855
1976	556
1977	596
1978	703
1979	730
1980	1,202
1981	862
1982	717
1983	1,123
1984	1,027
1985	608
1986	626
1987	745
1988	662
1989	1,106
1990	1,660
1991	1,244
1992	1,423
1993	845
1994	690
1995	1,106
1996	1,114
1997	983
1998	947
1999	705
2000	1,372
2001	1,441
2002	1,537
2003	954
2004	1,275
2005	908
2006	1,122
2007	1,170
2008	1,472
2009	805
2010	1,275
2011	1,001
2012	1,006
2013	929
2014	858
2015	667
2016	679
2017	602
2018	552
2019	1,044
2020	631
2021	837
2022	807
2023	316
2024	760
2025	865
2026	804

Download the Data

Data for records on 2009-05-23: 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	585
20 to 40	25
40 to 60	10
60 to 80	5
80 to 100	2
100 to 120	3
120 to 140	0
140 to 160	3