Weather Records on 20 May 1983

1,307 weather records were set or tied worldwide on 20 May 1983. Highest significance: College STN 6 SW, US.

Key Facts for 20 May 1983

On 20 May 1983, 1,307 weather records were set or tied at long-record stations worldwide.
281 were record highs and 230 were record lows, counting maximum and minimum temperature.
By timescale, 11 were all-time records, 45 monthly and 1,251 daily.
College STN 6 SW set a monthly record daily precipitation of 186.9 mm (7.4 in) on 20 May 1983.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 450 records.

Record Map

1,307 stations

1,307 station records on 20 May 1983 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 1983: highest significance records shown on the map
Station	Country	Type	Value	Significance
College STN 6 SW	United States	Record daily precipitation	186.9 mm (7.4 in)	81 of 100 (Exceptional)
Beechal	Australia	Record daily precipitation	105.6 mm (4.2 in)	78 of 100 (Major)
Mt Howitt	Australia	Record daily precipitation	100.5 mm (4.0 in)	74 of 100 (Major)
Barcaldine Post Office	Australia	Record daily precipitation	108.0 mm (4.3 in)	67 of 100 (Major)
Saltern Post Office	Australia	Record daily precipitation	97.0 mm (3.8 in)	66 of 100 (Major)
Alpha Post Office	Australia	Record daily precipitation	71.4 mm (2.8 in)	64 of 100 (Major)
South Comongin	Australia	Record daily precipitation	118.0 mm (4.6 in)	64 of 100 (Major)
Betanga	Australia	Record daily precipitation	105.0 mm (4.1 in)	63 of 100 (Major)
Wellshot	Australia	Record daily precipitation	65.0 mm (2.6 in)	62 of 100 (Major)
Thylungra Station	Australia	Record daily precipitation	104.2 mm (4.1 in)	62 of 100 (Major)
Bulgroo Station	Australia	Record daily precipitation	69.0 mm (2.7 in)	60 of 100 (Major)
Elgin Downs	Australia	Record daily precipitation	70.0 mm (2.8 in)	59 of 100 (Notable)
Whynot Station	Australia	Record daily precipitation	137.0 mm (5.4 in)	59 of 100 (Notable)
Sumidouro-Usina Sao Jorge	Brazil	Record daily precipitation	141.4 mm (5.6 in)	58 of 100 (Notable)
Grand Lake 1 NW	United States	Record snow depth	33.0 cm (13.0 in)	58 of 100 (Notable)
Tallyabra	Australia	Record daily precipitation	78.6 mm (3.1 in)	57 of 100 (Notable)
Millungera Station	Australia	Record daily precipitation	45.0 mm (1.8 in)	56 of 100 (Notable)
Gumbardo	Australia	Record daily precipitation	62.0 mm (2.4 in)	56 of 100 (Notable)
Kokpekty	Kazakhstan	Record daily precipitation	64.4 mm (2.5 in)	56 of 100 (Notable)
Kipling 4 NNW	United States	Record daily precipitation	106.7 mm (4.2 in)	56 of 100 (Notable)
Aramac Post Office	Australia	Record daily precipitation	44.0 mm (1.7 in)	55 of 100 (Notable)
Cowley Station	Australia	Record daily precipitation	138.6 mm (5.5 in)	55 of 100 (Notable)
Comongin North	Australia	Record daily precipitation	97.6 mm (3.8 in)	55 of 100 (Notable)
Rougemont	United States	Record daily precipitation	92.7 mm (3.6 in)	55 of 100 (Notable)
Werrina	Australia	Record daily precipitation	63.0 mm (2.5 in)	54 of 100 (Notable)
Chalobay	Kazakhstan	Record daily precipitation	42.4 mm (1.7 in)	54 of 100 (Notable)
Ilfracombe Post Office	Australia	Record daily precipitation	58.4 mm (2.3 in)	53 of 100 (Notable)
Windorah Post Office	Australia	Record daily precipitation	59.0 mm (2.3 in)	53 of 100 (Notable)
Tinnenburra	Australia	Record daily precipitation	41.0 mm (1.6 in)	53 of 100 (Notable)
Arrozeira	Brazil	Record daily precipitation	101.8 mm (4.0 in)	53 of 100 (Notable)
Talladega	United States	Record daily precipitation	73.7 mm (2.9 in)	53 of 100 (Notable)
Natchitoches	United States	Record daily precipitation	142.2 mm (5.6 in)	53 of 100 (Notable)
Winnfield 3 N	United States	Record daily precipitation	125.7 mm (4.9 in)	53 of 100 (Notable)
Cunnamulla Post Office	Australia	Record daily precipitation	63.0 mm (2.5 in)	52 of 100 (Notable)
Corupa (Hansa)	Brazil	Record daily precipitation	111.4 mm (4.4 in)	52 of 100 (Notable)
Dalrymple Heights	Australia	Record daily precipitation	90.0 mm (3.5 in)	51 of 100 (Notable)
Pine Hill Railway Station	Australia	Record daily precipitation	67.0 mm (2.6 in)	51 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	70.6 mm (2.8 in)	50 of 100 (Notable)
Kenilworth	Australia	Record daily precipitation	79.0 mm (3.1 in)	50 of 100 (Notable)
Winona Fire Twr	United States	Record daily precipitation	161.0 mm (6.3 in)	50 of 100 (Notable)
Evora Station	Australia	Record daily precipitation	68.0 mm (2.7 in)	49 of 100 (Notable)
Kyabra	Australia	Record daily precipitation	69.0 mm (2.7 in)	49 of 100 (Notable)
Velikie Luki	Russia	Record daily precipitation	34.6 mm (1.4 in)	49 of 100 (Notable)
Milo Station	Australia	Record daily precipitation	34.2 mm (1.3 in)	48 of 100 (Notable)
Evergreen	United States	Record daily precipitation	95.0 mm (3.7 in)	48 of 100 (Notable)
Howell Wwtp	United States	Record daily precipitation	28.4 mm (1.1 in)	48 of 100 (Notable)
Gargett Post Office	Australia	Record daily precipitation	71.0 mm (2.8 in)	47 of 100 (Notable)
Yantabulla Station	Australia	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Trombudo Central	Brazil	Record daily precipitation	77.0 mm (3.0 in)	47 of 100 (Notable)
Sugarloaf Rsvr	United States	Record daily snowfall	15.2 cm (6.0 in)	47 of 100 (Notable)
Monroe Rgnl AP	United States	Record daily precipitation	108.0 mm (4.3 in)	47 of 100 (Notable)
Coreena	Australia	Record daily precipitation	83.0 mm (3.3 in)	46 of 100 (Notable)
Enngonia (Belalie)	Australia	Record daily precipitation	40.0 mm (1.6 in)	46 of 100 (Notable)
Ituporanga (Pcd)	Brazil	Record daily precipitation	58.1 mm (2.3 in)	46 of 100 (Notable)
Jacupiranga	Brazil	Record daily precipitation	74.7 mm (2.9 in)	46 of 100 (Notable)
Usina Sao Jose	Brazil	Record daily precipitation	50.5 mm (2.0 in)	46 of 100 (Notable)
Porto Cubatao	Brazil	Record daily precipitation	128.2 mm (5.0 in)	46 of 100 (Notable)
Dynevor Downs	Australia	Record daily precipitation	66.0 mm (2.6 in)	45 of 100 (Notable)
Eromanga - Webber St	Australia	Record daily precipitation	48.0 mm (1.9 in)	45 of 100 (Notable)
Pouso Redondo	Brazil	Record daily precipitation	79.2 mm (3.1 in)	45 of 100 (Notable)

Counts by Type and Timescale

1,307 records

Records set or tied on 20 May 1983 by type: Highest daily maximum 139, Lowest daily maximum 136, Highest daily minimum 142, Lowest daily minimum 94, Heaviest daily rainfall 775, Heaviest daily snowfall 8, Deepest snow cover 13.

Records on 20 May 1983 by type
Record type	Records
Highest daily maximum	139
Lowest daily maximum	136
Highest daily minimum	142
Lowest daily minimum	94
Heaviest daily rainfall	775
Heaviest daily snowfall	8
Deepest snow cover	13

Records on 20 May 1983 by timescale: all-time 11, monthly 45, daily 1,251.

How Much Records Were Beaten By

1,137 broken records

Margins by which the 1,137 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 686.0. Ties are not counted.

Top 20 by Significance

20 May 1983

Top 20 records on 20 May 1983 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1983	College STN 6 SW, US	monthly rain	186.9 mm (7.4 in)	70.1 mm (2.8 in)	90 years	81 of 100 (Exceptional)
20 May 1983	Beechal, AU	daily rain	105.6 mm (4.2 in)	68.0 mm (2.7 in)	93 years	78 of 100 (Major)
20 May 1983	Mt Howitt, AU	monthly rain	100.5 mm (4.0 in)	42.8 mm (1.7 in)	52 years	74 of 100 (Major)
20 May 1983	Barcaldine Post Office, AU	daily rain	108.0 mm (4.3 in)	86.4 mm (3.4 in)	61 years	67 of 100 (Major)
20 May 1983	Saltern Post Office, AU	daily rain	97.0 mm (3.8 in)	70.8 mm (2.8 in)	61 years	66 of 100 (Major)
20 May 1983	Alpha Post Office, AU	daily rain	71.4 mm (2.8 in)	58.4 mm (2.3 in)	61 years	64 of 100 (Major)
20 May 1983	South Comongin, AU	monthly rain	118.0 mm (4.6 in)	53.2 mm (2.1 in)	15 years	64 of 100 (Major)
20 May 1983	Betanga, AU	monthly rain	105.0 mm (4.1 in)	33.9 mm (1.3 in)	81 years	63 of 100 (Major)
20 May 1983	Wellshot, AU	monthly rain	65.0 mm (2.6 in)	20.5 mm (0.8 in)	81 years	62 of 100 (Major)
20 May 1983	Thylungra Station, AU	monthly rain	104.2 mm (4.1 in)	36.6 mm (1.4 in)	61 years	62 of 100 (Major)
20 May 1983	Bulgroo Station, AU	daily rain	69.0 mm (2.7 in)	58.3 mm (2.3 in)	38 years	60 of 100 (Major)
20 May 1983	Elgin Downs, AU	daily rain	70.0 mm (2.8 in)	43.3 mm (1.7 in)	80 years	59 of 100 (Notable)
20 May 1983	Whynot Station, AU	monthly rain	137.0 mm (5.4 in)	66.6 mm (2.6 in)	15 years	59 of 100 (Notable)
20 May 1983	Sumidouro-Usina Sao Jorge, BR	all-time rain	141.4 mm (5.6 in)	36.8 mm (1.4 in)	37 years	58 of 100 (Notable)
20 May 1983	Grand Lake 1 NW, US	daily snow depth	33.0 cm (13.0 in)	33.0 cm (13.0 in)	65 years	58 of 100 (Notable)
20 May 1983	Tallyabra, AU	daily rain	78.6 mm (3.1 in)	67.2 mm (2.6 in)	38 years	57 of 100 (Notable)
20 May 1983	Millungera Station, AU	daily rain	45.0 mm (1.8 in)	43.7 mm (1.7 in)	64 years	56 of 100 (Notable)
20 May 1983	Gumbardo, AU	daily rain	62.0 mm (2.4 in)	37.1 mm (1.5 in)	61 years	56 of 100 (Notable)
20 May 1983	Kokpekty, KZ	all-time rain	64.4 mm (2.5 in)	9.7 mm (0.38 in)	25 years	56 of 100 (Notable)
20 May 1983	Kipling 4 NNW, US	daily rain	106.7 mm (4.2 in)	64.5 mm (2.5 in)	36 years	56 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

1802 to 1983

Records set or tied on this calendar date in each year from 1802 to 1983. 1983 had 1,307 records.

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

Records on 05-20 in each year
Year	Records
1802	1
1803	1
1804	1
1815	1
1825	1
1837	1
1844	1
1845	3
1847	1
1854	1
1858	3
1861	1
1862	1
1865	1
1867	1
1868	2
1870	3
1871	2
1876	2
1877	3
1879	1
1880	2
1884	2
1885	1
1887	2
1889	3
1890	3
1891	5
1892	3
1893	1
1894	6
1895	3
1896	3
1897	3
1898	4
1899	4
1900	1
1901	5
1902	11
1903	19
1904	4
1905	4
1906	22
1907	35
1908	23
1909	10
1910	20
1911	82
1912	20
1913	10
1914	16
1915	42
1916	29
1917	46
1918	92
1919	56
1920	44
1921	234
1922	40
1923	125
1924	189
1925	251
1926	128
1927	118
1928	138
1929	323
1930	129
1931	451
1932	689
1933	449
1934	582
1935	259
1936	207
1937	270
1938	331
1939	266
1940	337
1941	378
1942	337
1943	802
1944	315
1945	498
1946	339
1947	358
1948	514
1949	586
1950	327
1951	288
1952	615
1953	518
1954	822
1955	421
1956	565
1957	728
1958	378
1959	785
1960	612
1961	333
1962	773
1963	732
1964	517
1965	200
1966	416
1967	587
1968	743
1969	885
1970	310
1971	653
1972	612
1973	419
1974	893
1975	1,332
1976	837
1977	553
1978	534
1979	683
1980	751
1981	1,540
1982	554
1983	1,307
1984	867
1985	426
1986	790
1987	1,036
1988	805
1989	764
1990	722
1991	925
1992	1,200
1993	1,208
1994	778
1995	734
1996	1,749
1997	1,106
1998	1,124
1999	673
2000	991
2001	847
2002	2,299
2003	1,201
2004	746
2005	929
2006	1,006
2007	565
2008	999
2009	1,529
2010	1,011
2011	1,117
2012	604
2013	919
2014	629
2015	1,001
2016	692
2017	1,214
2018	460
2019	1,483
2020	784
2021	904
2022	1,643
2023	1,106
2024	478
2025	969
2026	696

Download the Data

Data for records on 1983-05-20: 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	1,125
100 to 200	6
200 to 300	1
300 to 400	2
400 to 500	0
500 to 600	1
600 to 700	2