Weather Records on 23 May 2011

1,001 weather records were set or tied worldwide on 23 May 2011. Highest significance: Koror, PW.

Key Facts for 23 May 2011

On 23 May 2011, 1,001 weather records were set or tied at long-record stations worldwide.
467 were record highs and 160 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 19 monthly and 974 daily.
Koror set a daily record precipitation of 174.8 mm (6.9 in) on 23 May 2011.
Across 158 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

1,001 stations

1,001 station records on 23 May 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 May 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Koror	Palau	Record daily precipitation	174.8 mm (6.9 in)	63 of 100 (Major)
Roldal	Norway	Record daily precipitation	29.0 mm (1.1 in)	61 of 100 (Major)
Bridgewater	Australia	Record daily precipitation	51.0 mm (2.0 in)	57 of 100 (Notable)
Suldalsvatn	Norway	Record daily precipitation	50.2 mm (2.0 in)	57 of 100 (Notable)
Warren (Frawley St)	Australia	Record daily precipitation	70.0 mm (2.8 in)	56 of 100 (Notable)
Navarre	Australia	Record daily precipitation	35.6 mm (1.4 in)	56 of 100 (Notable)
Neozhidannyj	Russia	Record daily precipitation	55.9 mm (2.2 in)	56 of 100 (Notable)
Muskogee	United States	Record daily precipitation	99.3 mm (3.9 in)	56 of 100 (Notable)
Pudino	Russia	Record daily precipitation	30.7 mm (1.2 in)	55 of 100 (Notable)
Warren (Mumblebone)	Australia	Record daily precipitation	43.0 mm (1.7 in)	54 of 100 (Notable)
Peak Hill Post Office	Australia	Record daily precipitation	40.8 mm (1.6 in)	51 of 100 (Notable)
Gravette	United States	Record daily precipitation	99.8 mm (3.9 in)	50 of 100 (Notable)
Durant	United States	Record daily precipitation	63.5 mm (2.5 in)	50 of 100 (Notable)
Yandanooka	Australia	Record daily precipitation	59.0 mm (2.3 in)	49 of 100 (Notable)
Parkes (Macarthur Street)	Australia	Record daily precipitation	46.2 mm (1.8 in)	49 of 100 (Notable)
Darlington Point (St Pauls Clo	Australia	Record daily precipitation	32.6 mm (1.3 in)	48 of 100 (Notable)
Marengo	United States	Record daily precipitation	38.1 mm (1.5 in)	48 of 100 (Notable)
Winter	United States	Record daily precipitation	30.2 mm (1.2 in)	48 of 100 (Notable)
Imperial Muni AP	United States	Record daily precipitation	40.1 mm (1.6 in)	47 of 100 (Notable)
Buffalo Bill Dam	United States	Record daily precipitation	38.1 mm (1.5 in)	46 of 100 (Notable)
Aldgate	Australia	Record daily precipitation	90.0 mm (3.5 in)	45 of 100 (Notable)
Mandurama (Gallymont (Homeleig	Australia	Record daily precipitation	30.8 mm (1.2 in)	45 of 100 (Notable)
Bonnie Doon Garage	Australia	Record daily precipitation	28.0 mm (1.1 in)	45 of 100 (Notable)
Hermann	United States	Record daily precipitation	77.2 mm (3.0 in)	45 of 100 (Notable)
Mandan Exp STN	United States	Record daily precipitation	50.0 mm (2.0 in)	45 of 100 (Notable)
Upper Manilla (Carmarthen)	Australia	Record daily precipitation	50.2 mm (2.0 in)	44 of 100 (Notable)
Aleksandrovskoe	Russia	Record daily precipitation	26.1 mm (1.0 in)	44 of 100 (Notable)
Hardy	United States	Record daily precipitation	38.9 mm (1.5 in)	44 of 100 (Notable)
Watseka Public Works	United States	Record daily precipitation	55.1 mm (2.2 in)	44 of 100 (Notable)
Beulah	Australia	Record daily precipitation	25.0 mm (1.0 in)	43 of 100 (Notable)
Addington	Australia	Record daily precipitation	36.6 mm (1.4 in)	43 of 100 (Notable)
Postville	United States	Record daily precipitation	32.8 mm (1.3 in)	43 of 100 (Notable)
Kenton	United States	Record daily precipitation	28.4 mm (1.1 in)	43 of 100 (Notable)
Rosedale (Turretfield Research	Australia	Record daily precipitation	29.9 mm (1.2 in)	42 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	27.2 C (81.0 F)	42 of 100 (Notable)
Nullamanna (Silverdale)	Australia	Record daily precipitation	51.2 mm (2.0 in)	41 of 100 (Notable)
Stuart Town (Canobla)	Australia	Record daily precipitation	44.8 mm (1.8 in)	41 of 100 (Notable)
Nyngan (Canonbar)	Australia	Record daily precipitation	35.0 mm (1.4 in)	40 of 100 (Notable)
Trangie Research Station AWS	Australia	Record daily precipitation	41.0 mm (1.6 in)	40 of 100 (Notable)
Marshall	United States	Record daily precipitation	76.2 mm (3.0 in)	40 of 100 (Notable)
Waycross 4 NE	United States	Record high maximum temperature	40.0 C (104.0 F)	40 of 100 (Notable)
Cove 1 E	United States	Record low maximum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record high minimum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Jamestown	Australia	Record daily precipitation	31.2 mm (1.2 in)	39 of 100 (Notable)
Moyston (Barton Estate)	Australia	Record daily precipitation	50.0 mm (2.0 in)	39 of 100 (Notable)
Moorooduc	Australia	Record daily precipitation	29.4 mm (1.2 in)	39 of 100 (Notable)
Berryville 6 NW	United States	Record daily precipitation	64.3 mm (2.5 in)	39 of 100 (Notable)
Eureka Springs 3 WNW	United States	Record daily precipitation	86.1 mm (3.4 in)	39 of 100 (Notable)
Alturas	United States	Record low maximum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Putnam	United States	Record daily precipitation	29.7 mm (1.2 in)	39 of 100 (Notable)
Bungaree (Kirks Reservoir)	Australia	Record daily precipitation	26.8 mm (1.1 in)	38 of 100 (Notable)
Nyngan Airport	Australia	Record daily precipitation	27.8 mm (1.1 in)	37 of 100 (Notable)
Fayetteville Drake Fld	United States	Record daily precipitation	113.5 mm (4.5 in)	37 of 100 (Notable)
Nevertire (Beverley)	Australia	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Canowindra (Canowindra Street)	Australia	Record daily precipitation	38.6 mm (1.5 in)	36 of 100 (Notable)
Celaya (Smn)	Mexico	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Lenapah	United States	Record daily precipitation	99.1 mm (3.9 in)	36 of 100 (Notable)
Rice Lake	United States	Record daily precipitation	39.1 mm (1.5 in)	36 of 100 (Notable)
Breeza (Main Street)	Australia	Record daily precipitation	26.2 mm (1.0 in)	35 of 100 (Notable)
Keiser	United States	Record daily precipitation	64.3 mm (2.5 in)	35 of 100 (Notable)

Counts by Type and Timescale

1,001 records

Records set or tied on 23 May 2011 by type: Highest daily maximum 232, Lowest daily maximum 81, Highest daily minimum 235, Lowest daily minimum 79, Heaviest daily rainfall 371, Deepest snow cover 3.

Records on 23 May 2011 by type
Record type	Records
Highest daily maximum	232
Lowest daily maximum	81
Highest daily minimum	235
Lowest daily minimum	79
Heaviest daily rainfall	371
Heaviest daily snowfall	0
Deepest snow cover	3

Records on 23 May 2011 by timescale: all-time 8, monthly 19, daily 974.

How Much Records Were Beaten By

741 broken records

Margins by which the 741 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 124.5. Ties are not counted.

Top 20 by Significance

23 May 2011

Top 20 records on 23 May 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 May 2011	Koror, PW	daily rain	174.8 mm (6.9 in)	124.5 mm (4.9 in)	56 years	63 of 100 (Major)
23 May 2011	Roldal, NO	daily rain	29.0 mm (1.1 in)	14.6 mm (0.6 in)	86 years	61 of 100 (Major)
23 May 2011	Bridgewater, AU	daily rain	51.0 mm (2.0 in)	20.8 mm (0.8 in)	126 years	57 of 100 (Notable)
23 May 2011	Suldalsvatn, NO	daily rain	50.2 mm (2.0 in)	21.6 mm (0.9 in)	57 years	57 of 100 (Notable)
23 May 2011	Warren (Frawley St), AU	monthly rain	70.0 mm (2.8 in)	8.0 mm (0.31 in)	96 years	56 of 100 (Notable)
23 May 2011	Navarre, AU	daily rain	35.6 mm (1.4 in)	12.5 mm (0.5 in)	104 years	56 of 100 (Notable)
23 May 2011	Neozhidannyj, RU	daily rain	55.9 mm (2.2 in)	39.3 mm (1.5 in)	36 years	56 of 100 (Notable)
23 May 2011	Muskogee, US	daily rain	99.3 mm (3.9 in)	49.0 mm (1.9 in)	64 years	56 of 100 (Notable)
23 May 2011	Pudino, RU	daily rain	30.7 mm (1.2 in)	12.9 mm (0.5 in)	62 years	55 of 100 (Notable)
23 May 2011	Warren (Mumblebone), AU	daily rain	43.0 mm (1.7 in)	15.6 mm (0.6 in)	110 years	54 of 100 (Notable)
23 May 2011	Peak Hill Post Office, AU	daily rain	40.8 mm (1.6 in)	11.1 mm (0.4 in)	110 years	51 of 100 (Notable)
23 May 2011	Gravette, US	daily rain	99.8 mm (3.9 in)	40.6 mm (1.6 in)	54 years	50 of 100 (Notable)
23 May 2011	Durant, US	daily rain	63.5 mm (2.5 in)	33.0 mm (1.3 in)	80 years	50 of 100 (Notable)
23 May 2011	Yandanooka, AU	daily rain	59.0 mm (2.3 in)	25.7 mm (1.0 in)	52 years	49 of 100 (Notable)
23 May 2011	Parkes (Macarthur Street), AU	daily rain	46.2 mm (1.8 in)	13.7 mm (0.5 in)	80 years	49 of 100 (Notable)
23 May 2011	Darlington Point (St Pauls Clo, AU	daily rain	32.6 mm (1.3 in)	16.6 mm (0.7 in)	61 years	48 of 100 (Notable)
23 May 2011	Marengo, US	daily rain	38.1 mm (1.5 in)	14.5 mm (0.6 in)	84 years	48 of 100 (Notable)
23 May 2011	Winter, US	daily rain	30.2 mm (1.2 in)	12.4 mm (0.5 in)	90 years	48 of 100 (Notable)
23 May 2011	Imperial Muni AP, US	daily rain	40.1 mm (1.6 in)	22.1 mm (0.9 in)	58 years	47 of 100 (Notable)
23 May 2011	Buffalo Bill Dam, US	daily rain	38.1 mm (1.5 in)	5.1 mm (0.20 in)	101 years	46 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 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 1,001 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 2011-05-23: 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 2026-10-16 (16 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	706
20 to 40	29
40 to 60	4
60 to 80	0
80 to 100	0
100 to 120	1
120 to 140	1