Weather Records on 18 May 1983

1,093 weather records were set or tied worldwide on 18 May 1983. Highest significance: Cheesman, US.

Key Facts for 18 May 1983

On 18 May 1983, 1,093 weather records were set or tied at long-record stations worldwide.
237 were record highs and 568 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 12 monthly and 1,076 daily.
Cheesman set a daily record snowfall of 17.8 cm (7.0 in) on 18 May 1983.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 438 records.

Record Map

1,093 stations

1,093 station records on 18 May 1983 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1983: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cheesman	United States	Record daily snowfall	17.8 cm (7.0 in)	64 of 100 (Major)
Clarksville Wwtp	United States	Record daily precipitation	121.9 mm (4.8 in)	57 of 100 (Notable)
Ouray	United States	Record daily snowfall	7.9 cm (3.1 in)	49 of 100 (Notable)
Kolezma	Russia	Record daily precipitation	25.4 mm (1.0 in)	48 of 100 (Notable)
Chugwater	United States	Record snow depth	30.5 cm (12.0 in)	48 of 100 (Notable)
Norfolk 2 SW	United States	Record low minimum temperature	-2.8 C (27.0 F)	47 of 100 (Notable)
Katylga	Russia	Record daily precipitation	25.5 mm (1.0 in)	46 of 100 (Notable)
Dillon 1 E	United States	Record snow depth	27.9 cm (11.0 in)	46 of 100 (Notable)
Potter	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Major Gercino	Brazil	Record daily precipitation	92.0 mm (3.6 in)	45 of 100 (Notable)
Muscle Shoals AP	United States	Record daily precipitation	77.7 mm (3.1 in)	45 of 100 (Notable)
Napas	Russia	Record daily precipitation	31.6 mm (1.2 in)	44 of 100 (Notable)
Middletown 4 W	United States	Record low minimum temperature	-1.1 C (30.0 F)	44 of 100 (Notable)
Vestervig	Denmark	Record daily precipitation	32.4 mm (1.3 in)	43 of 100 (Notable)
Sredny Vasjugan	Russia	Record daily precipitation	56.1 mm (2.2 in)	43 of 100 (Notable)
Cheesman	United States	Record snow depth	12.7 cm (5.0 in)	42 of 100 (Notable)
Grand Lake 1 NW	United States	Record snow depth	40.6 cm (16.0 in)	42 of 100 (Notable)
Minchumina	United States	Record daily snowfall	19.1 cm (7.5 in)	42 of 100 (Notable)
Trout Lake	United States	Record snow depth	109.2 cm (43.0 in)	40 of 100 (Notable)
Tonala (Smn)	Mexico	Record high minimum temperature	28.9 C (84.0 F)	39 of 100 (Notable)
Carbon Hill 4SE	United States	Record daily precipitation	71.6 mm (2.8 in)	39 of 100 (Notable)
Winter Park	United States	Record snow depth	124.5 cm (49.0 in)	39 of 100 (Notable)
Wessington Springs	United States	Record low maximum temperature	11.7 C (53.1 F)	39 of 100 (Notable)
Memphis	United States	Record daily precipitation	77.0 mm (3.0 in)	39 of 100 (Notable)
Rietfontein	South Africa	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Harnosand	Sweden	Record high minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Ouray	United States	Record snow depth	22.9 cm (9.0 in)	38 of 100 (Notable)
Saguache	United States	Record low maximum temperature	7.2 C (45.0 F)	38 of 100 (Notable)
Fruita	United States	Record low maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Kirwin Dam	United States	Record daily precipitation	51.8 mm (2.0 in)	37 of 100 (Notable)
Shelbyville 1 E	United States	Record low minimum temperature	1.7 C (35.1 F)	37 of 100 (Notable)
Peterboro 2 S	United States	Record low minimum temperature	-3.9 C (25.0 F)	37 of 100 (Notable)
Heppner	United States	Record low minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Collbran	United States	Record low maximum temperature	7.8 C (46.0 F)	36 of 100 (Notable)
Eupora 2 E	United States	Record daily precipitation	124.2 mm (4.9 in)	36 of 100 (Notable)
Dalton	United States	Record snow depth	15.2 cm (6.0 in)	36 of 100 (Notable)
Taos	United States	Record low maximum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Low Head (Comparison)	Australia	Record high maximum temperature	18.0 C (64.4 F)	35 of 100 (Notable)
Port Hope	Canada	Record low minimum temperature	0.0 C (32.0 F)	35 of 100 (Notable)
Colonia Escandon	Mexico	Record high minimum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Jonesboro 3 SSE	United States	Record daily precipitation	53.8 mm (2.1 in)	35 of 100 (Notable)
Marshall	United States	Record low maximum temperature	15.6 C (60.1 F)	35 of 100 (Notable)
Avon Park 2 W	United States	Record high minimum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Hutchinson 10 SW	United States	Record daily precipitation	52.8 mm (2.1 in)	35 of 100 (Notable)
Silver Lake Brighton	United States	Record snow depth	254.0 cm (100.0 in)	35 of 100 (Notable)
Double Four Rch	United States	Record snow depth	30.5 cm (12.0 in)	35 of 100 (Notable)
Milo Station	Australia	Record daily precipitation	48.6 mm (1.9 in)	34 of 100 (Routine)
Vilnius	Lithuania	Record high minimum temperature	16.4 C (61.5 F)	34 of 100 (Routine)
Aleksandrovskoe	Russia	Record daily precipitation	26.8 mm (1.1 in)	34 of 100 (Routine)
Leroy 5 WSW	United States	Record low maximum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Hightstown 2 W	United States	Record low minimum temperature	0.6 C (33.1 F)	34 of 100 (Routine)
Northport	United States	Record low minimum temperature	-2.8 C (27.0 F)	34 of 100 (Routine)
San Juan de Aragon	Mexico	Record high minimum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Cedaredge	United States	Record low minimum temperature	-2.2 C (28.0 F)	33 of 100 (Routine)
Idalia	United States	Record daily snowfall	8.9 cm (3.5 in)	33 of 100 (Routine)
Julesburg	United States	Record low maximum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
Parker 6 E	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Berea College	United States	Record low minimum temperature	-1.1 C (30.0 F)	33 of 100 (Routine)
Thompsonville	United States	Record daily precipitation	30.2 mm (1.2 in)	33 of 100 (Routine)
Union	United States	Record daily precipitation	69.9 mm (2.8 in)	33 of 100 (Routine)

Counts by Type and Timescale

1,093 records

Records set or tied on 18 May 1983 by type: Highest daily maximum 103, Lowest daily maximum 153, Highest daily minimum 134, Lowest daily minimum 415, Heaviest daily rainfall 240, Heaviest daily snowfall 17, Deepest snow cover 31.

Records on 18 May 1983 by type
Record type	Records
Highest daily maximum	103
Lowest daily maximum	153
Highest daily minimum	134
Lowest daily minimum	415
Heaviest daily rainfall	240
Heaviest daily snowfall	17
Deepest snow cover	31

Records on 18 May 1983 by timescale: all-time 5, monthly 12, daily 1,076.

How Much Records Were Beaten By

866 broken records

Margins by which the 866 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 712.0. Ties are not counted.

Top 20 by Significance

18 May 1983

Top 20 records on 18 May 1983 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1983	Cheesman, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	80 years	64 of 100 (Major)
18 May 1983	Clarksville Wwtp, US	monthly rain	121.9 mm (4.8 in)	20.3 mm (0.8 in)	74 years	57 of 100 (Notable)
18 May 1983	Ouray, US	daily snowfall	7.9 cm (3.1 in)	7.9 cm (3.1 in)	87 years	49 of 100 (Notable)
18 May 1983	Kolezma, RU	daily rain	25.4 mm (1.0 in)	22.8 mm (0.9 in)	16 years	48 of 100 (Notable)
18 May 1983	Chugwater, US	daily snow depth	30.5 cm (12.0 in)	30.5 cm (12.0 in)	33 years	48 of 100 (Notable)
18 May 1983	Norfolk 2 SW, US	daily low min	-2.8 C (27.0 F)	3.9 C (7.0 F)	96 years	47 of 100 (Notable)
18 May 1983	Katylga, RU	daily rain	25.5 mm (1.0 in)	17.8 mm (0.7 in)	12 years	46 of 100 (Notable)
18 May 1983	Dillon 1 E, US	daily snow depth	27.9 cm (11.0 in)	20.3 cm (8.0 in)	70 years	46 of 100 (Notable)
18 May 1983	Potter, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	60 years	46 of 100 (Notable)
18 May 1983	Major Gercino, BR	daily rain	92.0 mm (3.6 in)	47.6 mm (1.9 in)	28 years	45 of 100 (Notable)
18 May 1983	Muscle Shoals AP, US	daily rain	77.7 mm (3.1 in)	49.3 mm (1.9 in)	16 years	45 of 100 (Notable)
18 May 1983	Napas, RU	daily rain	31.6 mm (1.2 in)	16.1 mm (0.6 in)	12 years	44 of 100 (Notable)
18 May 1983	Middletown 4 W, US	daily low min	-1.1 C (30.0 F)	1.9 C (3.4 F)	107 years	44 of 100 (Notable)
18 May 1983	Vestervig, DK	monthly rain	32.4 mm (1.3 in)	4.1 mm (0.16 in)	46 years	43 of 100 (Notable)
18 May 1983	Sredny Vasjugan, RU	all-time rain	56.1 mm (2.2 in)	0.5 mm (0.02 in)	51 years	43 of 100 (Notable)
18 May 1983	Cheesman, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	76 years	42 of 100 (Notable)
18 May 1983	Grand Lake 1 NW, US	daily snow depth	40.6 cm (16.0 in)	35.5 cm (14.0 in)	4 years	42 of 100 (Notable)
18 May 1983	Minchumina, US	monthly snowfall	19.1 cm (7.5 in)	14.5 cm (5.7 in)	1 year	42 of 100 (Notable)
18 May 1983	Trout Lake, US	daily snow depth	109.2 cm (43.0 in)	48.2 cm (19.0 in)	62 years	40 of 100 (Notable)
18 May 1983	Tonala (Smn), MX	daily high min	28.9 C (84.0 F)	3.3 C (5.9 F)	52 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 1983

Records set or tied on this calendar date in each year from 1796 to 1983. 1983 had 1,093 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 1983-05-18: 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 100	847
100 to 200	8
200 to 300	4
300 to 400	3
400 to 500	1
500 to 600	1
600 to 700	1
700 to 800	1