Weather Records on 18 May 2023

554 weather records were set or tied worldwide on 18 May 2023. Highest significance: Soummam, DZ.

Key Facts for 18 May 2023

On 18 May 2023, 554 weather records were set or tied at long-record stations worldwide.
231 were record highs and 248 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 546 daily.
Soummam set a daily record precipitation of 38.1 mm (1.5 in) on 18 May 2023.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 442 records.

Record Map

554 stations

554 station records on 18 May 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
Soummam	Algeria	Record daily precipitation	38.1 mm (1.5 in)	48 of 100 (Notable)
Wlodawa	Poland	Record daily precipitation	38.6 mm (1.5 in)	47 of 100 (Notable)
George Airport	South Africa	Record daily precipitation	34.0 mm (1.3 in)	46 of 100 (Notable)
Eads	United States	Record daily precipitation	42.7 mm (1.7 in)	46 of 100 (Notable)
Imlay	United States	Record high minimum temperature	17.2 C (63.0 F)	46 of 100 (Notable)
Blue Ridge Rs	United States	Record daily precipitation	25.7 mm (1.0 in)	45 of 100 (Notable)
Storrs	United States	Record low minimum temperature	-0.6 C (30.9 F)	45 of 100 (Notable)
Alma Bacon Co AP	United States	Record daily precipitation	62.5 mm (2.5 in)	45 of 100 (Notable)
Blue Hill Coop	United States	Record low minimum temperature	1.1 C (34.0 F)	43 of 100 (Notable)
Waverly	United States	Record low minimum temperature	-2.8 C (27.0 F)	43 of 100 (Notable)
Everett	United States	Record high minimum temperature	13.9 C (57.0 F)	42 of 100 (Notable)
Malda	India	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high minimum temperature	10.3 C (50.5 F)	41 of 100 (Notable)
Angelica	United States	Record low minimum temperature	-5.0 C (23.0 F)	41 of 100 (Notable)
Auburn	United States	Record low maximum temperature	8.9 C (48.0 F)	41 of 100 (Notable)
Brockport	United States	Record low minimum temperature	-0.6 C (30.9 F)	41 of 100 (Notable)
Freiburg	Germany	Record low minimum temperature	2.5 C (36.5 F)	40 of 100 (Notable)
Keene	United States	Record low maximum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Edirne	Turkey	Record daily precipitation	35.3 mm (1.4 in)	39 of 100 (Notable)
Keene	United States	Record low minimum temperature	-4.4 C (24.1 F)	39 of 100 (Notable)
Longview	United States	Record high minimum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Marre-Sale	Russia	Record high minimum temperature	1.3 C (34.3 F)	38 of 100 (Notable)
Ust Tzilma	Russia	Record high maximum temperature	26.0 C (78.8 F)	38 of 100 (Notable)
Berlin	United States	Record low minimum temperature	-3.3 C (26.1 F)	38 of 100 (Notable)
Wellsboro 4 SW	United States	Record low minimum temperature	-3.9 C (25.0 F)	38 of 100 (Notable)
Pulaski	United States	Record low maximum temperature	7.8 C (46.0 F)	37 of 100 (Notable)
Appling 2 NW	United States	Record daily precipitation	63.5 mm (2.5 in)	36 of 100 (Notable)
Cascade Locks	United States	Record high maximum temperature	32.2 C (90.0 F)	36 of 100 (Notable)
Custer	United States	Record low minimum temperature	-8.3 C (17.1 F)	35 of 100 (Notable)
Poteet	United States	Record low minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Woodstock	United States	Record low maximum temperature	9.4 C (48.9 F)	35 of 100 (Notable)
Yakutat AP	United States	Record high maximum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Buhta Ambarcik	Russia	Record high minimum temperature	8.3 C (46.9 F)	34 of 100 (Routine)
Harbor Beach 1 SSE	United States	Record low maximum temperature	5.6 C (42.1 F)	34 of 100 (Routine)
Fry	United States	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Riverhead Rsch Farm	United States	Record low minimum temperature	2.8 C (37.0 F)	33 of 100 (Routine)
Cedar Lake	United States	Record high minimum temperature	13.3 C (55.9 F)	33 of 100 (Routine)
Dayton 1 WSW	United States	Record high minimum temperature	14.4 C (57.9 F)	33 of 100 (Routine)
Narjan Mar	Russia	Record high minimum temperature	10.1 C (50.2 F)	32 of 100 (Routine)
Liberty 1 NE	United States	Record low minimum temperature	-2.2 C (28.0 F)	32 of 100 (Routine)
Osijek	Croatia	Record low maximum temperature	12.6 C (54.7 F)	31 of 100 (Routine)
Vacoas (Mauritius)	Mauritius	Record high maximum temperature	29.0 C (84.2 F)	31 of 100 (Routine)
Wickiup Dam	United States	Record high minimum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Palmer 3 ESE	United States	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Stampede Pass	United States	Record high minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Pehuajo Aero	Argentina	Record high maximum temperature	28.2 C (82.8 F)	30 of 100 (Routine)
Baise	China	Record high maximum temperature	39.8 C (103.6 F)	30 of 100 (Routine)
Ust-USA	Russia	Record high maximum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Ostrovnoe	Russia	Record high minimum temperature	8.9 C (48.0 F)	30 of 100 (Routine)
Ust-Vojampolka	Russia	Record high minimum temperature	4.4 C (39.9 F)	30 of 100 (Routine)
Sakon Nakhon	Thailand	Record high maximum temperature	38.8 C (101.8 F)	30 of 100 (Routine)
Balikesir	Turkey	Record daily precipitation	55.6 mm (2.2 in)	30 of 100 (Routine)
Clatskanie	United States	Record high minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Russell Muni AP	United States	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Hechingen	Germany	Record low minimum temperature	-0.1 C (31.8 F)	29 of 100 (Routine)
Ft Jones Rs	United States	Record high maximum temperature	36.1 C (97.0 F)	29 of 100 (Routine)
Massabesic Lake	United States	Record low minimum temperature	-7.2 C (19.0 F)	29 of 100 (Routine)
Dalwallinu Comparison	Australia	Record low maximum temperature	14.4 C (57.9 F)	28 of 100 (Routine)
Goldberg	Germany	Record low minimum temperature	1.7 C (35.1 F)	28 of 100 (Routine)
Ronneby-Bredakra	Sweden	Record low minimum temperature	-1.1 C (30.0 F)	28 of 100 (Routine)

Counts by Type and Timescale

554 records

Records set or tied on 18 May 2023 by type: Highest daily maximum 65, Lowest daily maximum 56, Highest daily minimum 166, Lowest daily minimum 192, Heaviest daily rainfall 74, Heaviest daily snowfall 1.

Records on 18 May 2023 by type
Record type	Records
Highest daily maximum	65
Lowest daily maximum	56
Highest daily minimum	166
Lowest daily minimum	192
Heaviest daily rainfall	74
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 18 May 2023 by timescale: all-time 0, monthly 8, daily 546.

How Much Records Were Beaten By

444 broken records

Margins by which the 444 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 40.9. Ties are not counted.

Top 20 by Significance

18 May 2023

Top 20 records on 18 May 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 2023	Soummam, DZ	daily rain	38.1 mm (1.5 in)	31.0 mm (1.2 in)	25 years	48 of 100 (Notable)
18 May 2023	Wlodawa, PL	daily rain	38.6 mm (1.5 in)	25.6 mm (1.0 in)	17 years	47 of 100 (Notable)
18 May 2023	George Airport, ZA	daily rain	34.0 mm (1.3 in)	7.8 mm (0.31 in)	120 years	46 of 100 (Notable)
18 May 2023	Eads, US	daily rain	42.7 mm (1.7 in)	22.4 mm (0.9 in)	60 years	46 of 100 (Notable)
18 May 2023	Imlay, US	daily high min	17.2 C (63.0 F)	2.8 C (5.0 F)	100 years	46 of 100 (Notable)
18 May 2023	Blue Ridge Rs, US	daily rain	25.7 mm (1.0 in)	19.1 mm (0.8 in)	16 years	45 of 100 (Notable)
18 May 2023	Storrs, US	daily low min	-0.6 C (30.9 F)	2.3 C (4.1 F)	131 years	45 of 100 (Notable)
18 May 2023	Alma Bacon Co AP, US	daily rain	62.5 mm (2.5 in)	40.9 mm (1.6 in)	20 years	45 of 100 (Notable)
18 May 2023	Blue Hill Coop, US	daily low min	1.1 C (34.0 F)	1.1 C (2.0 F)	131 years	43 of 100 (Notable)
18 May 2023	Waverly, US	daily low min	-2.8 C (27.0 F)	1.7 C (3.1 F)	112 years	43 of 100 (Notable)
18 May 2023	Everett, US	daily high min	13.9 C (57.0 F)	0.6 C (1.1 F)	106 years	42 of 100 (Notable)
18 May 2023	Malda, IN	daily rain	50.0 mm (2.0 in)	2.5 mm (0.10 in)	105 years	41 of 100 (Notable)
18 May 2023	Stornoway Airport, GB	daily high min	10.3 C (50.5 F)	0.3 C (0.5 F)	132 years	41 of 100 (Notable)
18 May 2023	Angelica, US	daily low min	-5.0 C (23.0 F)	0.6 C (1.1 F)	100 years	41 of 100 (Notable)
18 May 2023	Auburn, US	daily low max	8.9 C (48.0 F)	1.1 C (2.0 F)	106 years	41 of 100 (Notable)
18 May 2023	Brockport, US	daily low min	-0.6 C (30.9 F)	0.6 C (1.1 F)	108 years	41 of 100 (Notable)
18 May 2023	Freiburg, DE	daily low min	2.5 C (36.5 F)	0.3 C (0.5 F)	140 years	40 of 100 (Notable)
18 May 2023	Keene, US	daily low max	10.6 C (51.1 F)	0.5 C (0.9 F)	106 years	40 of 100 (Notable)
18 May 2023	Edirne, TR	daily rain	35.3 mm (1.4 in)	24.4 mm (1.0 in)	29 years	39 of 100 (Notable)
18 May 2023	Keene, US	daily low min	-4.4 C (24.1 F)	1.1 C (2.0 F)	92 years	39 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

1796 to 2023

Records set or tied on this calendar date in each year from 1796 to 2023. 2023 had 554 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 2023-05-18: 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 10	429
10 to 20	8
20 to 30	5
30 to 40	1
40 to 50	1