Weather Records on 18 May 1930

475 weather records were set or tied worldwide on 18 May 1930. Highest significance: Pine Bluff, US.

Key Facts for 18 May 1930

On 18 May 1930, 475 weather records were set or tied at long-record stations worldwide.
91 were record highs and 276 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 460 daily.
Pine Bluff set a daily record precipitation of 91.4 mm (3.6 in) on 18 May 1930.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 442 records.

Record Map

475 stations

475 station records on 18 May 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pine Bluff	United States	Record daily precipitation	91.4 mm (3.6 in)	51 of 100 (Notable)
Texarkana Webb Fld	United States	Record daily precipitation	129.5 mm (5.1 in)	48 of 100 (Notable)
Brinkley	United States	Record daily precipitation	91.9 mm (3.6 in)	47 of 100 (Notable)
Covington 3 SW	United States	Record daily precipitation	63.5 mm (2.5 in)	47 of 100 (Notable)
Camden 1	United States	Record daily precipitation	160.8 mm (6.3 in)	46 of 100 (Notable)
Clanton	United States	Record daily precipitation	69.9 mm (2.8 in)	45 of 100 (Notable)
Duck Hill	United States	Record daily precipitation	64.5 mm (2.5 in)	41 of 100 (Notable)
Austin	United States	Record daily precipitation	62.2 mm (2.4 in)	39 of 100 (Notable)
Rugby	United States	Record daily precipitation	42.2 mm (1.7 in)	39 of 100 (Notable)
Little Rock St Capitol	United States	Record daily precipitation	56.9 mm (2.2 in)	37 of 100 (Notable)
Newport	United States	Record daily precipitation	39.4 mm (1.6 in)	37 of 100 (Notable)
Greensboro	United States	Record daily precipitation	104.1 mm (4.1 in)	36 of 100 (Notable)
Johnsonville	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Arkadelphia 2 N	United States	Record daily precipitation	85.6 mm (3.4 in)	35 of 100 (Notable)
Fulton	United States	Record daily precipitation	116.8 mm (4.6 in)	35 of 100 (Notable)
Hernando	United States	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Helena	United States	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)
Lake	United States	Record daily precipitation	68.6 mm (2.7 in)	33 of 100 (Routine)
Chattanooga Wb City	United States	Record daily precipitation	53.3 mm (2.1 in)	33 of 100 (Routine)
Gadsden	United States	Record daily precipitation	57.9 mm (2.3 in)	32 of 100 (Routine)
Calhoun 2 N	United States	Record daily precipitation	79.8 mm (3.1 in)	31 of 100 (Routine)
Athens	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Broken Bow 2 W	United States	Record daily snowfall	15.2 cm (6.0 in)	30 of 100 (Routine)
Jackson Exp STN	United States	Record daily precipitation	48.3 mm (1.9 in)	30 of 100 (Routine)
Broken Bow 2 W	United States	Record snow depth	15.2 cm (6.0 in)	28 of 100 (Routine)
Cedar Hill 1	United States	Record daily precipitation	87.6 mm (3.4 in)	28 of 100 (Routine)
Auburn 5 ESE	United States	Record daily precipitation	35.1 mm (1.4 in)	27 of 100 (Routine)
Carroll	United States	Record low maximum temperature	7.8 C (46.0 F)	26 of 100 (Routine)
Atchison	United States	Record daily precipitation	42.2 mm (1.7 in)	26 of 100 (Routine)
Tekamah	United States	Record low maximum temperature	8.3 C (46.9 F)	26 of 100 (Routine)
Guthrie Ctr	United States	Record low maximum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Pontotoc	United States	Record daily precipitation	50.8 mm (2.0 in)	25 of 100 (Routine)
Oakdale	United States	Record low maximum temperature	5.6 C (42.1 F)	25 of 100 (Routine)
Rome	United States	Record daily precipitation	41.4 mm (1.6 in)	24 of 100 (Routine)
Hartington	United States	Record low maximum temperature	7.8 C (46.0 F)	24 of 100 (Routine)
Dover 1 W	United States	Record daily precipitation	63.2 mm (2.5 in)	24 of 100 (Routine)
Pembroke Eddy Match	Canada	Record low minimum temperature	-2.2 C (28.0 F)	23 of 100 (Routine)
Harlan	United States	Record low maximum temperature	7.2 C (45.0 F)	23 of 100 (Routine)
Logan 1 WNW	United States	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Easton	United States	Record daily precipitation	26.7 mm (1.1 in)	23 of 100 (Routine)
Lexington 3E	United States	Record low maximum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Welland	Canada	Record low maximum temperature	9.4 C (48.9 F)	22 of 100 (Routine)
Malvern	United States	Record daily precipitation	47.2 mm (1.9 in)	22 of 100 (Routine)
Grundy Ctr	United States	Record low maximum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Thurman	United States	Record low maximum temperature	8.3 C (46.9 F)	22 of 100 (Routine)
Medicine Lodge	United States	Record low maximum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
W Pt	United States	Record low maximum temperature	6.7 C (44.1 F)	22 of 100 (Routine)
Llano	United States	Record daily precipitation	45.7 mm (1.8 in)	22 of 100 (Routine)
Denison	United States	Record low maximum temperature	8.3 C (46.9 F)	21 of 100 (Routine)
Unionville	United States	Record low maximum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Broken Bow 2 W	United States	Record daily precipitation	29.7 mm (1.2 in)	21 of 100 (Routine)
Franklin	United States	Record low maximum temperature	8.9 C (48.0 F)	21 of 100 (Routine)
N Loup	United States	Record low maximum temperature	2.8 C (37.0 F)	21 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record low minimum temperature	-5.0 C (23.0 F)	21 of 100 (Routine)
Nidingen A	Sweden	Record daily precipitation	23.0 mm (0.9 in)	20 of 100 (Routine)
Falsterbo	Sweden	Record daily precipitation	16.7 mm (0.7 in)	20 of 100 (Routine)
Varberg	Sweden	Record daily precipitation	19.5 mm (0.8 in)	20 of 100 (Routine)
Soltau	Germany	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Lund	Sweden	Record daily precipitation	17.4 mm (0.7 in)	20 of 100 (Routine)
Wrixum/Fohr	Germany	Record daily precipitation	13.1 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

475 records

Records set or tied on 18 May 1930 by type: Highest daily maximum 12, Lowest daily maximum 217, Highest daily minimum 79, Lowest daily minimum 59, Heaviest daily rainfall 104, Heaviest daily snowfall 3, Deepest snow cover 1.

Records on 18 May 1930 by type
Record type	Records
Highest daily maximum	12
Lowest daily maximum	217
Highest daily minimum	79
Lowest daily minimum	59
Heaviest daily rainfall	104
Heaviest daily snowfall	3
Deepest snow cover	1

Records on 18 May 1930 by timescale: all-time 0, monthly 15, daily 460.

How Much Records Were Beaten By

380 broken records

Margins by which the 380 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.0. Ties are not counted.

Top 20 by Significance

18 May 1930

Top 20 records on 18 May 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1930	Pine Bluff, US	daily rain	91.4 mm (3.6 in)	63.5 mm (2.5 in)	38 years	51 of 100 (Notable)
18 May 1930	Texarkana Webb Fld, US	monthly rain	129.5 mm (5.1 in)	41.6 mm (1.6 in)	25 years	48 of 100 (Notable)
18 May 1930	Brinkley, US	daily rain	91.9 mm (3.6 in)	61.2 mm (2.4 in)	37 years	47 of 100 (Notable)
18 May 1930	Covington 3 SW, US	daily rain	63.5 mm (2.5 in)	53.3 mm (2.1 in)	27 years	47 of 100 (Notable)
18 May 1930	Camden 1, US	monthly rain	160.8 mm (6.3 in)	52.8 mm (2.1 in)	0 years	46 of 100 (Notable)
18 May 1930	Clanton, US	daily rain	69.9 mm (2.8 in)	54.7 mm (2.2 in)	9 years	45 of 100 (Notable)
18 May 1930	Duck Hill, US	daily rain	64.5 mm (2.5 in)	49.0 mm (1.9 in)	21 years	41 of 100 (Notable)
18 May 1930	Austin, US	daily rain	62.2 mm (2.4 in)	42.9 mm (1.7 in)	28 years	39 of 100 (Notable)
18 May 1930	Rugby, US	daily rain	42.2 mm (1.7 in)	28.2 mm (1.1 in)	39 years	39 of 100 (Notable)
18 May 1930	Little Rock St Capitol, US	daily rain	56.9 mm (2.2 in)	38.6 mm (1.5 in)	40 years	37 of 100 (Notable)
18 May 1930	Newport, US	daily rain	39.4 mm (1.6 in)	27.5 mm (1.1 in)	40 years	37 of 100 (Notable)
18 May 1930	Greensboro, US	daily rain	104.1 mm (4.1 in)	56.3 mm (2.2 in)	20 years	36 of 100 (Notable)
18 May 1930	Johnsonville, US	daily rain	50.8 mm (2.0 in)	33.0 mm (1.3 in)	38 years	36 of 100 (Notable)
18 May 1930	Arkadelphia 2 N, US	daily rain	85.6 mm (3.4 in)	50.0 mm (2.0 in)	28 years	35 of 100 (Notable)
18 May 1930	Fulton, US	monthly rain	116.8 mm (4.6 in)	37.0 mm (1.5 in)	0 years	35 of 100 (Notable)
18 May 1930	Hernando, US	daily rain	44.5 mm (1.8 in)	35.6 mm (1.4 in)	29 years	34 of 100 (Routine)
18 May 1930	Helena, US	daily rain	50.8 mm (2.0 in)	47.2 mm (1.9 in)	25 years	33 of 100 (Routine)
18 May 1930	Lake, US	daily rain	68.6 mm (2.7 in)	56.4 mm (2.2 in)	9 years	33 of 100 (Routine)
18 May 1930	Chattanooga Wb City, US	daily rain	53.3 mm (2.1 in)	21.5 mm (0.8 in)	37 years	33 of 100 (Routine)
18 May 1930	Gadsden, US	daily rain	57.9 mm (2.3 in)	37.3 mm (1.5 in)	8 years	32 of 100 (Routine)

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 1930

Records set or tied on this calendar date in each year from 1796 to 1930. 1930 had 475 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 1930-05-18: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	347
20 to 40	18
40 to 60	11
60 to 80	3
80 to 100	0
100 to 120	1