Weather Records on 18 May 2024

551 weather records were set or tied worldwide on 18 May 2024. Highest significance: Ganca, AZ.

Key Facts for 18 May 2024

On 18 May 2024, 551 weather records were set or tied at long-record stations worldwide.
383 were record highs and 77 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 21 monthly and 525 daily.
Ganca set a daily record precipitation of 99.3 mm (3.9 in) on 18 May 2024.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 442 records.

Record Map

551 stations

551 station records on 18 May 2024 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 2024: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ganca	Azerbaijan	Record daily precipitation	99.3 mm (3.9 in)	80 of 100 (Exceptional)
Troy	United States	Record daily precipitation	101.6 mm (4.0 in)	73 of 100 (Major)
Chipley	United States	Record daily precipitation	101.6 mm (4.0 in)	64 of 100 (Major)
Masrik	Armenia	Record daily precipitation	99.6 mm (3.9 in)	63 of 100 (Major)
Greenville	United States	Record daily precipitation	88.4 mm (3.5 in)	62 of 100 (Major)
Rasht	Tajikistan	Record daily precipitation	52.1 mm (2.1 in)	49 of 100 (Notable)
Cape Leeuwin	Australia	Record high maximum temperature	27.4 C (81.3 F)	48 of 100 (Notable)
Utsira Fyr	Norway	Record high minimum temperature	13.7 C (56.7 F)	48 of 100 (Notable)
Avon	United States	Record daily precipitation	32.8 mm (1.3 in)	48 of 100 (Notable)
Pitea	Sweden	Record high maximum temperature	26.8 C (80.2 F)	45 of 100 (Notable)
Pipestone	United States	Record high minimum temperature	20.6 C (69.1 F)	44 of 100 (Notable)
Clayton	United States	Record daily precipitation	97.0 mm (3.8 in)	43 of 100 (Notable)
Franklinville	United States	Record high minimum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
El Campo	United States	Record low maximum temperature	21.7 C (71.1 F)	43 of 100 (Notable)
Mersa Matruh	Egypt	Record high minimum temperature	24.6 C (76.3 F)	42 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record high minimum temperature	12.5 C (54.5 F)	42 of 100 (Notable)
Morrilton	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Moscow U of I	United States	Record low minimum temperature	-1.1 C (30.0 F)	41 of 100 (Notable)
Waialae-Kahala 715	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Albany SW Georgia Rgnl AP	United States	Record daily precipitation	49.8 mm (2.0 in)	41 of 100 (Notable)
Darganata	Uzbekistan	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Yumenzhen	China	Record high minimum temperature	18.6 C (65.5 F)	40 of 100 (Notable)
Moultrie 2 ESE	United States	Record daily precipitation	110.0 mm (4.3 in)	40 of 100 (Notable)
Aerop.Internacional	Mexico	Record high maximum temperature	44.2 C (111.6 F)	38 of 100 (Notable)
Dry Tortugas	United States	Record high minimum temperature	27.8 C (82.0 F)	38 of 100 (Notable)
Worcester	United States	Record daily precipitation	50.8 mm (2.0 in)	38 of 100 (Notable)
Dunn 4 NW	United States	Record daily precipitation	124.5 mm (4.9 in)	37 of 100 (Notable)
San Andres (Isla)/S	Colombia	Record high maximum temperature	33.5 C (92.3 F)	36 of 100 (Notable)
Ft Benning Lawson Fld	United States	Record daily precipitation	64.0 mm (2.5 in)	36 of 100 (Notable)
Brownsville	United States	Record high maximum temperature	36.1 C (97.0 F)	35 of 100 (Notable)
Faerder Fyr	Norway	Record high minimum temperature	14.5 C (58.1 F)	34 of 100 (Routine)
Brockport	United States	Record daily precipitation	26.2 mm (1.0 in)	34 of 100 (Routine)
Elkin	United States	Record daily precipitation	58.4 mm (2.3 in)	33 of 100 (Routine)
Greensboro Wtp	United States	Record daily precipitation	35.8 mm (1.4 in)	33 of 100 (Routine)
Pensacola Forest Sherman NAS	United States	Record daily precipitation	61.0 mm (2.4 in)	33 of 100 (Routine)
Yulin	China	Record high minimum temperature	18.7 C (65.7 F)	32 of 100 (Routine)
Cass City 1 SSW	United States	Record daily precipitation	37.1 mm (1.5 in)	32 of 100 (Routine)
Carson City	United States	Record high minimum temperature	13.3 C (55.9 F)	32 of 100 (Routine)
Marianna Muni AP	United States	Record daily precipitation	39.9 mm (1.6 in)	32 of 100 (Routine)
Bluefield Mercer Co AP	United States	Record daily precipitation	45.2 mm (1.8 in)	31 of 100 (Routine)
Jiuquan	China	Record high minimum temperature	16.6 C (61.9 F)	30 of 100 (Routine)
Lampang	Thailand	Record high minimum temperature	27.0 C (80.6 F)	30 of 100 (Routine)
Reidsville 2 NW	United States	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Buckhannon	United States	Record daily precipitation	31.0 mm (1.2 in)	30 of 100 (Routine)
Miami Intl AP	United States	Record high minimum temperature	27.2 C (81.0 F)	30 of 100 (Routine)
Seattle Boeing Fld	United States	Record low maximum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Marrawah	Australia	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Yangon Intl	Burma	Record high minimum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Soto la Marina (Obs)	Mexico	Record high minimum temperature	26.5 C (79.7 F)	29 of 100 (Routine)
Sovetskaja Gavan	Russia	Record high minimum temperature	9.8 C (49.6 F)	29 of 100 (Routine)
Ust-Hairyuzovo	Russia	Record high maximum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
Ft Lauderdale	United States	Record high maximum temperature	36.1 C (97.0 F)	29 of 100 (Routine)
Arkabutla Dam	United States	Record daily precipitation	85.1 mm (3.4 in)	29 of 100 (Routine)
Beretania Pump STN 705	United States	Record daily precipitation	26.9 mm (1.1 in)	29 of 100 (Routine)
Del Rio Intl AP	United States	Record high maximum temperature	41.7 C (107.1 F)	29 of 100 (Routine)
Mtn Home AFB	United States	Record low minimum temperature	-1.0 C (30.2 F)	29 of 100 (Routine)
N Myrtle Beach	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Yan An	China	Record high maximum temperature	33.0 C (91.4 F)	28 of 100 (Routine)
Paragould 1S	United States	Record daily precipitation	49.3 mm (1.9 in)	28 of 100 (Routine)
Warsaw 6 SW	United States	Record daily precipitation	26.7 mm (1.1 in)	28 of 100 (Routine)

Counts by Type and Timescale

551 records

Records set or tied on 18 May 2024 by type: Highest daily maximum 173, Lowest daily maximum 39, Highest daily minimum 210, Lowest daily minimum 38, Heaviest daily rainfall 90, Deepest snow cover 1.

Records on 18 May 2024 by type
Record type	Records
Highest daily maximum	173
Lowest daily maximum	39
Highest daily minimum	210
Lowest daily minimum	38
Heaviest daily rainfall	90
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 18 May 2024 by timescale: all-time 5, monthly 21, daily 525.

How Much Records Were Beaten By

440 broken records

Margins by which the 440 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 86.9. Ties are not counted.

Top 20 by Significance

18 May 2024

Top 20 records on 18 May 2024 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 2024	Ganca, AZ	daily rain	99.3 mm (3.9 in)	77.3 mm (3.0 in)	135 years	80 of 100 (Exceptional)
18 May 2024	Troy, US	daily rain	101.6 mm (4.0 in)	63.5 mm (2.5 in)	78 years	73 of 100 (Major)
18 May 2024	Chipley, US	daily rain	101.6 mm (4.0 in)	57.7 mm (2.3 in)	78 years	64 of 100 (Major)
18 May 2024	Masrik, AM	daily rain	99.6 mm (3.9 in)	86.9 mm (3.4 in)	53 years	63 of 100 (Major)
18 May 2024	Greenville, US	daily rain	88.4 mm (3.5 in)	46.0 mm (1.8 in)	78 years	62 of 100 (Major)
18 May 2024	Rasht, TJ	daily rain	52.1 mm (2.1 in)	28.6 mm (1.1 in)	45 years	49 of 100 (Notable)
18 May 2024	Cape Leeuwin, AU	daily high max	27.4 C (81.3 F)	2.3 C (4.1 F)	96 years	48 of 100 (Notable)
18 May 2024	Utsira Fyr, NO	daily high min	13.7 C (56.7 F)	2.0 C (3.6 F)	99 years	48 of 100 (Notable)
18 May 2024	Avon, US	daily rain	32.8 mm (1.3 in)	11.5 mm (0.5 in)	79 years	48 of 100 (Notable)
18 May 2024	Pitea, SE	daily high max	26.8 C (80.2 F)	3.3 C (5.9 F)	99 years	45 of 100 (Notable)
18 May 2024	Pipestone, US	daily high min	20.6 C (69.1 F)	2.3 C (4.1 F)	113 years	44 of 100 (Notable)
18 May 2024	Clayton, US	monthly rain	97.0 mm (3.8 in)	6.8 mm (0.27 in)	67 years	43 of 100 (Notable)
18 May 2024	Franklinville, US	daily high min	15.6 C (60.1 F)	1.7 C (3.1 F)	116 years	43 of 100 (Notable)
18 May 2024	El Campo, US	daily low max	21.7 C (71.1 F)	5.0 C (9.0 F)	59 years	43 of 100 (Notable)
18 May 2024	Mersa Matruh, EG	daily high min	24.6 C (76.3 F)	2.6 C (4.7 F)	74 years	42 of 100 (Notable)
18 May 2024	Dublin Phoenix Park, IE	daily high min	12.5 C (54.5 F)	0.7 C (1.3 F)	116 years	42 of 100 (Notable)
18 May 2024	Morrilton, US	daily rain	50.8 mm (2.0 in)	20.3 mm (0.8 in)	72 years	41 of 100 (Notable)
18 May 2024	Moscow U of I, US	daily low min	-1.1 C (30.0 F)	0.5 C (0.9 F)	121 years	41 of 100 (Notable)
18 May 2024	Waialae-Kahala 715, US	daily rain	50.8 mm (2.0 in)	16.5 mm (0.6 in)	32 years	41 of 100 (Notable)
18 May 2024	Albany SW Georgia Rgnl AP, US	daily rain	49.8 mm (2.0 in)	39.4 mm (1.6 in)	4 years	41 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 2024

Records set or tied on this calendar date in each year from 1796 to 2024. 2024 had 551 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 2024-05-18: 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 20	423
20 to 40	12
40 to 60	2
60 to 80	2
80 to 100	1