Weather Records on 18 May 1976

733 weather records were set or tied worldwide on 18 May 1976. Highest significance: Hatteras, US.

Key Facts for 18 May 1976

On 18 May 1976, 733 weather records were set or tied at long-record stations worldwide.
126 were record highs and 434 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 725 daily.
Hatteras set a daily record precipitation of 50.3 mm (2.0 in) on 18 May 1976.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 441 records.

Record Map

733 stations

733 station records on 18 May 1976 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1976: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hatteras	United States	Record daily precipitation	50.3 mm (2.0 in)	57 of 100 (Notable)
Vysnij Volocek	Russia	Record daily precipitation	25.9 mm (1.0 in)	52 of 100 (Notable)
Newport	United States	Record daily precipitation	39.6 mm (1.6 in)	48 of 100 (Notable)
Philadelphia City	United States	Record low minimum temperature	5.6 C (42.1 F)	44 of 100 (Notable)
Lennoxville	Canada	Record daily precipitation	39.6 mm (1.6 in)	41 of 100 (Notable)
Newcomb 3 W	United States	Record daily snowfall	20.3 cm (8.0 in)	41 of 100 (Notable)
Abbeville 4S	United States	Record daily precipitation	35.1 mm (1.4 in)	40 of 100 (Notable)
Amealco	Mexico	Record daily precipitation	37.8 mm (1.5 in)	39 of 100 (Notable)
Dawson	United States	Record daily precipitation	26.7 mm (1.1 in)	39 of 100 (Notable)
Presa Parral	Mexico	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Waterloo	United States	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Piaxtla	Mexico	Record daily precipitation	85.3 mm (3.4 in)	36 of 100 (Notable)
Mozajsk	Russia	Record daily precipitation	28.3 mm (1.1 in)	36 of 100 (Notable)
Redington	United States	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Marathon	United States	Record low maximum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Long Prairie	United States	Record low minimum temperature	-2.8 C (27.0 F)	35 of 100 (Notable)
Galveston	United States	Record low maximum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Helena	United States	Record low minimum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Mt Vernon	United States	Record low minimum temperature	6.1 C (43.0 F)	34 of 100 (Routine)
Howard 2SE	United States	Record low minimum temperature	3.9 C (39.0 F)	34 of 100 (Routine)
Long Branch-Oakhurst	United States	Record daily precipitation	51.1 mm (2.0 in)	34 of 100 (Routine)
Perry	United States	Record low minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Taloga	United States	Record low minimum temperature	5.0 C (41.0 F)	34 of 100 (Routine)
Dunderlandsdalen	Norway	Record snow depth	115.0 cm (45.3 in)	33 of 100 (Routine)
Searcy	United States	Record low minimum temperature	6.1 C (43.0 F)	33 of 100 (Routine)
Plain Dealing	United States	Record low minimum temperature	7.2 C (45.0 F)	33 of 100 (Routine)
Galesburg	United States	Record low minimum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
Wheaton 3 SE	United States	Record low minimum temperature	0.6 C (33.1 F)	32 of 100 (Routine)
Grafton	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Marlin	United States	Record low minimum temperature	9.4 C (48.9 F)	32 of 100 (Routine)
Lancaster 4 WSW	United States	Record low minimum temperature	1.7 C (35.1 F)	32 of 100 (Routine)
Brockville	Canada	Record low maximum temperature	6.1 C (43.0 F)	31 of 100 (Routine)
Huntingdon	Canada	Record low maximum temperature	5.6 C (42.1 F)	31 of 100 (Routine)
Cuatro Cienegas (Smn)	Mexico	Record low maximum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Onor	Russia	Record daily precipitation	27.1 mm (1.1 in)	31 of 100 (Routine)
Holton	United States	Record low minimum temperature	1.1 C (34.0 F)	31 of 100 (Routine)
Sedan	United States	Record low minimum temperature	3.3 C (37.9 F)	31 of 100 (Routine)
Caruthersville	United States	Record low maximum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Chandler	United States	Record low minimum temperature	6.1 C (43.0 F)	31 of 100 (Routine)
Pawhuska	United States	Record low minimum temperature	4.4 C (39.9 F)	31 of 100 (Routine)
Vancouver 4 NNE	United States	Record low minimum temperature	1.1 C (34.0 F)	31 of 100 (Routine)
Portage Wwtp	United States	Record low minimum temperature	-1.1 C (30.0 F)	31 of 100 (Routine)
Desterro	Brazil	Record daily precipitation	45.0 mm (1.8 in)	30 of 100 (Routine)
Carcross	Canada	Record low maximum temperature	2.8 C (37.0 F)	30 of 100 (Routine)
Fordyce	United States	Record low maximum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
El Dorado	United States	Record low minimum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Eastport	United States	Record high minimum temperature	8.3 C (46.9 F)	30 of 100 (Routine)
Versailles	United States	Record low minimum temperature	4.4 C (39.9 F)	30 of 100 (Routine)
Dennison Wtr Wks	United States	Record low maximum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Walterboro 1 SW	United States	Record daily precipitation	30.7 mm (1.2 in)	30 of 100 (Routine)
Amiandos	Cyprus	Record daily precipitation	33.5 mm (1.3 in)	29 of 100 (Routine)
Ocampo	Mexico	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Hull	United Kingdom	Record high minimum temperature	11.8 C (53.2 F)	29 of 100 (Routine)
Jetmore	United States	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
El Reno 1 N	United States	Record low minimum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Okeene	United States	Record low minimum temperature	5.6 C (42.1 F)	29 of 100 (Routine)
Eagle Pass 3N	United States	Record low minimum temperature	13.9 C (57.0 F)	29 of 100 (Routine)
East Angus	Canada	Record daily precipitation	54.4 mm (2.1 in)	28 of 100 (Routine)
Abilene	United States	Record low minimum temperature	2.8 C (37.0 F)	28 of 100 (Routine)
Wamego 4 W	United States	Record low minimum temperature	3.3 C (37.9 F)	28 of 100 (Routine)

Counts by Type and Timescale

733 records

Records set or tied on 18 May 1976 by type: Highest daily maximum 45, Lowest daily maximum 147, Highest daily minimum 81, Lowest daily minimum 287, Heaviest daily rainfall 165, Heaviest daily snowfall 6, Deepest snow cover 2.

Records on 18 May 1976 by type
Record type	Records
Highest daily maximum	45
Lowest daily maximum	147
Highest daily minimum	81
Lowest daily minimum	287
Heaviest daily rainfall	165
Heaviest daily snowfall	6
Deepest snow cover	2

Records on 18 May 1976 by timescale: all-time 0, monthly 8, daily 725.

How Much Records Were Beaten By

565 broken records

Margins by which the 565 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 270.0. Ties are not counted.

Top 20 by Significance

18 May 1976

Top 20 records on 18 May 1976 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1976	Hatteras, US	daily rain	50.3 mm (2.0 in)	38.6 mm (1.5 in)	80 years	57 of 100 (Notable)
18 May 1976	Vysnij Volocek, RU	daily rain	25.9 mm (1.0 in)	11.0 mm (0.4 in)	75 years	52 of 100 (Notable)
18 May 1976	Newport, US	daily rain	39.6 mm (1.6 in)	25.6 mm (1.0 in)	28 years	48 of 100 (Notable)
18 May 1976	Philadelphia City, US	daily low min	5.6 C (42.1 F)	1.6 C (2.9 F)	100 years	44 of 100 (Notable)
18 May 1976	Lennoxville, CA	daily rain	39.6 mm (1.6 in)	17.5 mm (0.7 in)	28 years	41 of 100 (Notable)
18 May 1976	Newcomb 3 W, US	monthly snowfall	20.3 cm (8.0 in)	9.6 cm (3.8 in)	31 years	41 of 100 (Notable)
18 May 1976	Abbeville 4S, US	daily rain	35.1 mm (1.4 in)	16.0 mm (0.6 in)	70 years	40 of 100 (Notable)
18 May 1976	Amealco, MX	daily rain	37.8 mm (1.5 in)	22.1 mm (0.9 in)	8 years	39 of 100 (Notable)
18 May 1976	Dawson, US	daily rain	26.7 mm (1.1 in)	16.5 mm (0.6 in)	72 years	39 of 100 (Notable)
18 May 1976	Presa Parral, MX	daily rain	27.9 mm (1.1 in)	22.1 mm (0.9 in)	12 years	37 of 100 (Notable)
18 May 1976	Waterloo, US	daily rain	33.0 mm (1.3 in)	17.0 mm (0.7 in)	19 years	37 of 100 (Notable)
18 May 1976	Piaxtla, MX	monthly rain	85.3 mm (3.4 in)	10.9 mm (0.4 in)	40 years	36 of 100 (Notable)
18 May 1976	Mozajsk, RU	daily rain	28.3 mm (1.1 in)	13.3 mm (0.5 in)	28 years	36 of 100 (Notable)
18 May 1976	Redington, US	monthly rain	38.4 mm (1.5 in)	23.2 mm (0.9 in)	2 years	36 of 100 (Notable)
18 May 1976	Marathon, US	daily low max	16.7 C (62.1 F)	4.4 C (7.9 F)	62 years	36 of 100 (Notable)
18 May 1976	Long Prairie, US	daily low min	-2.8 C (27.0 F)	1.7 C (3.1 F)	80 years	35 of 100 (Notable)
18 May 1976	Galveston, US	daily low max	23.3 C (73.9 F)	1.7 C (3.1 F)	66 years	35 of 100 (Notable)
18 May 1976	Helena, US	daily low min	7.8 C (46.0 F)	2.2 C (4.0 F)	72 years	34 of 100 (Routine)
18 May 1976	Mt Vernon, US	daily low min	6.1 C (43.0 F)	1.1 C (2.0 F)	82 years	34 of 100 (Routine)
18 May 1976	Howard 2SE, US	daily low min	3.9 C (39.0 F)	3.9 C (7.0 F)	66 years	34 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 1976

Records set or tied on this calendar date in each year from 1796 to 1976. 1976 had 733 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 1976-05-18: 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 50	562
50 to 100	1
100 to 150	0
150 to 200	1
200 to 250	0
250 to 300	1