Weather Records on 15 May 2023

566 weather records were set or tied worldwide on 15 May 2023. Highest significance: Pacific Heights, AU.

Key Facts for 15 May 2023

On 15 May 2023, 566 weather records were set or tied at long-record stations worldwide.
404 were record highs and 43 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 16 monthly and 549 daily.
Pacific Heights set a daily record precipitation of 154.8 mm (6.1 in) on 15 May 2023.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 430 records.

Record Map

566 stations

566 station records on 15 May 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pacific Heights	Australia	Record daily precipitation	154.8 mm (6.1 in)	74 of 100 (Major)
Byfield Childs Road	Australia	Record daily precipitation	112.0 mm (4.4 in)	61 of 100 (Major)
Anzali	Iran	Record daily precipitation	44.2 mm (1.7 in)	51 of 100 (Notable)
Potlatch 3 NNE	United States	Record high minimum temperature	16.1 C (61.0 F)	51 of 100 (Notable)
Kanopolis Lake	United States	Record daily precipitation	68.8 mm (2.7 in)	51 of 100 (Notable)
Remilton	Australia	Record daily precipitation	52.0 mm (2.0 in)	49 of 100 (Notable)
Herkimer	United States	Record daily precipitation	56.4 mm (2.2 in)	47 of 100 (Notable)
Stillwater 2 W	United States	Record daily precipitation	63.8 mm (2.5 in)	47 of 100 (Notable)
Ketchikan AP	United States	Record high minimum temperature	12.2 C (54.0 F)	47 of 100 (Notable)
Cheikh Larbi Tebessi	Algeria	Record daily precipitation	34.0 mm (1.3 in)	46 of 100 (Notable)
Wellingrove (Wangalea)	Australia	Record daily precipitation	51.0 mm (2.0 in)	46 of 100 (Notable)
Adel	United States	Record high minimum temperature	11.7 C (53.1 F)	46 of 100 (Notable)
Moyola	Australia	Record daily precipitation	55.6 mm (2.2 in)	45 of 100 (Notable)
Aleksandrovsk-Sahalinskij	Russia	Record high minimum temperature	11.2 C (52.2 F)	44 of 100 (Notable)
Enid	United States	Record daily precipitation	54.9 mm (2.2 in)	44 of 100 (Notable)
Budapest/Pestszentlorinc	Hungary	Record daily precipitation	33.3 mm (1.3 in)	43 of 100 (Notable)
Crystal Springs Exp STN	United States	Record high maximum temperature	36.7 C (98.1 F)	43 of 100 (Notable)
Corvallis State UNIV	United States	Record high maximum temperature	33.3 C (91.9 F)	43 of 100 (Notable)
Burgess Junction	United States	Record daily precipitation	32.5 mm (1.3 in)	43 of 100 (Notable)
Orlinga	Russia	Record low minimum temperature	-9.0 C (15.8 F)	42 of 100 (Notable)
Biloxi	United States	Record high maximum temperature	32.8 C (91.0 F)	42 of 100 (Notable)
Monroe	United States	Record high minimum temperature	13.9 C (57.0 F)	42 of 100 (Notable)
Mtn Home 1 NNW	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Clayton 1 SSW	United States	Record high minimum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Landsburg	United States	Record high minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Colony	United States	Record low minimum temperature	-3.3 C (26.1 F)	41 of 100 (Notable)
Marshall	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Sandpoint Exp STN	United States	Record high minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Longview	United States	Record high maximum temperature	33.9 C (93.0 F)	40 of 100 (Notable)
Tingha (Crystal Hill)	Australia	Record daily precipitation	38.0 mm (1.5 in)	39 of 100 (Notable)
Mt Olive 1 E	United States	Record daily precipitation	56.1 mm (2.2 in)	39 of 100 (Notable)
Capitol Reef Np	United States	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Moscow U of I	United States	Record high minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Gate	United States	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Ashland	United States	Record high minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Hood Rvr Exp STN	United States	Record high minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Rosalia	United States	Record high minimum temperature	15.6 C (60.1 F)	38 of 100 (Notable)
Hendersonville 1 NE	United States	Record high minimum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Mason	United States	Record daily precipitation	55.9 mm (2.2 in)	37 of 100 (Notable)
Old Bonalbo (Alcheringa)	Australia	Record daily precipitation	69.0 mm (2.7 in)	36 of 100 (Notable)
Scottsboro	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Marysville	United States	Record daily precipitation	55.1 mm (2.2 in)	36 of 100 (Notable)
Pendleton Branch Exp STN	United States	Record high minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Elma	United States	Record high maximum temperature	34.4 C (93.9 F)	36 of 100 (Notable)
Seattle Boeing Fld	United States	Record high maximum temperature	32.8 C (91.0 F)	36 of 100 (Notable)
Newhalem	United States	Record high minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Malmstrom AFB	United States	Record high minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Lewiston AP	United States	Record high minimum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Olympia AP	United States	Record high maximum temperature	33.3 C (91.9 F)	35 of 100 (Notable)
Morrilton	United States	Record high maximum temperature	33.9 C (93.0 F)	34 of 100 (Routine)
Cottage Grove 2E	United States	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Bingham 2 NE	United States	Record high minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Battle Ground	United States	Record high minimum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Gavar	Armenia	Record low maximum temperature	8.0 C (46.4 F)	32 of 100 (Routine)
Jabiru Airport	Australia	Record daily precipitation	41.4 mm (1.6 in)	32 of 100 (Routine)
Wallangarra Post Office	Australia	Record daily precipitation	44.0 mm (1.7 in)	32 of 100 (Routine)
Bilma	Niger	Record high maximum temperature	46.0 C (114.8 F)	32 of 100 (Routine)
Ola	United States	Record high minimum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Leaburg 1 SW	United States	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)
Lind 3 NE	United States	Record high minimum temperature	15.0 C (59.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

566 records

Records set or tied on 15 May 2023 by type: Highest daily maximum 150, Lowest daily maximum 19, Highest daily minimum 254, Lowest daily minimum 24, Heaviest daily rainfall 119.

Records on 15 May 2023 by type
Record type	Records
Highest daily maximum	150
Lowest daily maximum	19
Highest daily minimum	254
Lowest daily minimum	24
Heaviest daily rainfall	119
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 May 2023 by timescale: all-time 1, monthly 16, daily 549.

How Much Records Were Beaten By

427 broken records

Margins by which the 427 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 103.2. Ties are not counted.

Top 20 by Significance

15 May 2023

Top 20 records on 15 May 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 2023	Pacific Heights, AU	daily rain	154.8 mm (6.1 in)	103.2 mm (4.1 in)	80 years	74 of 100 (Major)
15 May 2023	Byfield Childs Road, AU	daily rain	112.0 mm (4.4 in)	67.5 mm (2.7 in)	80 years	61 of 100 (Major)
15 May 2023	Anzali, IR	daily rain	44.2 mm (1.7 in)	34.0 mm (1.3 in)	16 years	51 of 100 (Notable)
15 May 2023	Potlatch 3 NNE, US	monthly high min	16.1 C (61.0 F)	0.5 C (0.9 F)	103 years	51 of 100 (Notable)
15 May 2023	Kanopolis Lake, US	daily rain	68.8 mm (2.7 in)	52.8 mm (2.1 in)	24 years	51 of 100 (Notable)
15 May 2023	Remilton, AU	daily rain	52.0 mm (2.0 in)	43.0 mm (1.7 in)	36 years	49 of 100 (Notable)
15 May 2023	Herkimer, US	daily rain	56.4 mm (2.2 in)	29.2 mm (1.1 in)	60 years	47 of 100 (Notable)
15 May 2023	Stillwater 2 W, US	daily rain	63.8 mm (2.5 in)	14.0 mm (0.6 in)	113 years	47 of 100 (Notable)
15 May 2023	Ketchikan AP, US	daily high min	12.2 C (54.0 F)	2.2 C (4.0 F)	110 years	47 of 100 (Notable)
15 May 2023	Cheikh Larbi Tebessi, DZ	daily rain	34.0 mm (1.3 in)	23.1 mm (0.9 in)	36 years	46 of 100 (Notable)
15 May 2023	Wellingrove (Wangalea), AU	daily rain	51.0 mm (2.0 in)	22.6 mm (0.9 in)	53 years	46 of 100 (Notable)
15 May 2023	Adel, US	daily high min	11.7 C (53.1 F)	2.8 C (5.0 F)	105 years	46 of 100 (Notable)
15 May 2023	Moyola, AU	daily rain	55.6 mm (2.2 in)	43.2 mm (1.7 in)	45 years	45 of 100 (Notable)
15 May 2023	Aleksandrovsk-Sahalinskij, RU	daily high min	11.2 C (52.2 F)	1.4 C (2.5 F)	133 years	44 of 100 (Notable)
15 May 2023	Enid, US	daily rain	54.9 mm (2.2 in)	7.9 mm (0.31 in)	126 years	44 of 100 (Notable)
15 May 2023	Budapest/Pestszentlorinc, HU	daily rain	33.3 mm (1.3 in)	18.3 mm (0.7 in)	45 years	43 of 100 (Notable)
15 May 2023	Crystal Springs Exp STN, US	daily high max	36.7 C (98.1 F)	1.1 C (2.0 F)	123 years	43 of 100 (Notable)
15 May 2023	Corvallis State UNIV, US	daily high max	33.3 C (91.9 F)	1.6 C (2.9 F)	127 years	43 of 100 (Notable)
15 May 2023	Burgess Junction, US	daily rain	32.5 mm (1.3 in)	20.1 mm (0.8 in)	46 years	43 of 100 (Notable)
15 May 2023	Orlinga, RU	daily low min	-9.0 C (15.8 F)	3.0 C (5.4 F)	86 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

1820 to 2023

Records set or tied on this calendar date in each year from 1820 to 2023. 2023 had 566 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 2023-05-15: 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	408
20 to 40	14
40 to 60	3
60 to 80	1
80 to 100	0
100 to 120	1