Weather Records on 20 May 1984

867 weather records were set or tied worldwide on 20 May 1984. Highest significance: Quincy Mem Brg, US.

Key Facts for 20 May 1984

On 20 May 1984, 867 weather records were set or tied at long-record stations worldwide.
217 were record highs and 97 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 32 monthly and 830 daily.
Quincy Mem Brg set a daily record precipitation of 85.9 mm (3.4 in) on 20 May 1984.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 453 records.

Record Map

867 stations

867 station records on 20 May 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Quincy Mem Brg	United States	Record daily precipitation	85.9 mm (3.4 in)	68 of 100 (Major)
Yanrey	Australia	Record daily precipitation	118.0 mm (4.6 in)	65 of 100 (Major)
Watheroo	Australia	Record daily precipitation	59.7 mm (2.4 in)	65 of 100 (Major)
Perangery	Australia	Record daily precipitation	58.4 mm (2.3 in)	64 of 100 (Major)
Neds Creek	Australia	Record daily precipitation	64.4 mm (2.5 in)	62 of 100 (Major)
Murrum Station	Australia	Record daily precipitation	30.0 mm (1.2 in)	62 of 100 (Major)
Lugansk	Ukraine	Record daily precipitation	30.4 mm (1.2 in)	60 of 100 (Major)
Golden	United States	Record daily precipitation	84.6 mm (3.3 in)	59 of 100 (Notable)
Edina	United States	Record daily precipitation	62.0 mm (2.4 in)	59 of 100 (Notable)
Corsicana	United States	Record daily precipitation	94.7 mm (3.7 in)	59 of 100 (Notable)
Melrose	Australia	Record daily precipitation	70.1 mm (2.8 in)	57 of 100 (Notable)
Orange	United States	Record daily precipitation	164.6 mm (6.5 in)	56 of 100 (Notable)
Mount Augustus	Australia	Record daily precipitation	63.0 mm (2.5 in)	55 of 100 (Notable)
Bunya Bunya	Australia	Record daily precipitation	47.8 mm (1.9 in)	55 of 100 (Notable)
Mt Sterling	United States	Record daily precipitation	73.7 mm (2.9 in)	55 of 100 (Notable)
Round Hill	Australia	Record daily precipitation	35.0 mm (1.4 in)	54 of 100 (Notable)
Quincy Dam 21	United States	Record daily precipitation	71.4 mm (2.8 in)	54 of 100 (Notable)
Salisbury	United States	Record daily precipitation	69.9 mm (2.8 in)	54 of 100 (Notable)
Miling	Australia	Record daily precipitation	40.0 mm (1.6 in)	53 of 100 (Notable)
Yuna	Australia	Record daily precipitation	38.6 mm (1.5 in)	53 of 100 (Notable)
Baandee North	Australia	Record daily precipitation	34.8 mm (1.4 in)	53 of 100 (Notable)
Bentley	United States	Record daily precipitation	69.3 mm (2.7 in)	53 of 100 (Notable)
Rushville	United States	Record daily precipitation	125.7 mm (4.9 in)	53 of 100 (Notable)
W Lafayette 6 NW	United States	Record daily precipitation	54.9 mm (2.2 in)	53 of 100 (Notable)
Perenjori	Australia	Record daily precipitation	65.4 mm (2.6 in)	52 of 100 (Notable)
Millston	Australia	Record daily precipitation	33.0 mm (1.3 in)	52 of 100 (Notable)
Yulin	China	Record daily precipitation	30.1 mm (1.2 in)	52 of 100 (Notable)
Kentland	United States	Record daily precipitation	56.1 mm (2.2 in)	52 of 100 (Notable)
Alvin	United States	Record daily precipitation	105.9 mm (4.2 in)	52 of 100 (Notable)
Gleneva	Australia	Record daily precipitation	42.2 mm (1.7 in)	51 of 100 (Notable)
Codg Codgen	Australia	Record daily precipitation	32.4 mm (1.3 in)	51 of 100 (Notable)
Green Grove	Australia	Record daily precipitation	60.4 mm (2.4 in)	50 of 100 (Notable)
Spas-Demensk	Russia	Record daily precipitation	28.3 mm (1.1 in)	50 of 100 (Notable)
Macon	United States	Record daily precipitation	63.5 mm (2.5 in)	50 of 100 (Notable)
Morawa West	Australia	Record daily precipitation	35.0 mm (1.4 in)	49 of 100 (Notable)
Crescent City	United States	Record high minimum temperature	27.2 C (81.0 F)	49 of 100 (Notable)
Payson	United States	Record daily precipitation	68.3 mm (2.7 in)	49 of 100 (Notable)
Yarraloola	Australia	Record daily precipitation	153.2 mm (6.0 in)	48 of 100 (Notable)
Bowgada	Australia	Record daily precipitation	54.6 mm (2.1 in)	48 of 100 (Notable)
Hyde Park	Australia	Record daily precipitation	33.0 mm (1.3 in)	48 of 100 (Notable)
Mumby	Australia	Record daily precipitation	55.0 mm (2.2 in)	48 of 100 (Notable)
Sunderland	Australia	Record daily precipitation	40.8 mm (1.6 in)	48 of 100 (Notable)
Blanco	United States	Record daily precipitation	73.7 mm (2.9 in)	48 of 100 (Notable)
Evadale	United States	Record daily precipitation	108.2 mm (4.3 in)	48 of 100 (Notable)
Mount Clere	Australia	Record daily precipitation	80.0 mm (3.1 in)	47 of 100 (Notable)
Labelle	United States	Record daily precipitation	64.3 mm (2.5 in)	47 of 100 (Notable)
Balmoral	Australia	Record daily precipitation	122.0 mm (4.8 in)	46 of 100 (Notable)
Milgun	Australia	Record daily precipitation	92.4 mm (3.6 in)	46 of 100 (Notable)
Coomberdale	Australia	Record daily precipitation	31.0 mm (1.2 in)	46 of 100 (Notable)
Brazzaville	Congo (Brazzaville)	Record daily precipitation	99.1 mm (3.9 in)	46 of 100 (Notable)
Griggsville	United States	Record daily precipitation	48.3 mm (1.9 in)	46 of 100 (Notable)
Keokuk L&D 19	United States	Record daily precipitation	61.0 mm (2.4 in)	46 of 100 (Notable)
Hannibal Wtr Wks	United States	Record daily precipitation	55.4 mm (2.2 in)	46 of 100 (Notable)
Palmyra	United States	Record daily precipitation	67.3 mm (2.6 in)	46 of 100 (Notable)
Bryah	Australia	Record daily precipitation	104.4 mm (4.1 in)	45 of 100 (Notable)
Ogilvie	Australia	Record daily precipitation	40.6 mm (1.6 in)	45 of 100 (Notable)
South Holmwood	Australia	Record daily precipitation	32.6 mm (1.3 in)	44 of 100 (Notable)
La Harpe	United States	Record daily precipitation	40.1 mm (1.6 in)	44 of 100 (Notable)
Doolgunna	Australia	Record daily precipitation	126.4 mm (5.0 in)	43 of 100 (Notable)
Carnamah	Australia	Record daily precipitation	45.0 mm (1.8 in)	43 of 100 (Notable)

Counts by Type and Timescale

867 records

Records set or tied on 20 May 1984 by type: Highest daily maximum 103, Lowest daily maximum 46, Highest daily minimum 114, Lowest daily minimum 51, Heaviest daily rainfall 551, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 20 May 1984 by type
Record type	Records
Highest daily maximum	103
Lowest daily maximum	46
Highest daily minimum	114
Lowest daily minimum	51
Heaviest daily rainfall	551
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 20 May 1984 by timescale: all-time 5, monthly 32, daily 830.

How Much Records Were Beaten By

776 broken records

Margins by which the 776 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 115.1. Ties are not counted.

Top 20 by Significance

20 May 1984

Top 20 records on 20 May 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1984	Quincy Mem Brg, US	daily rain	85.9 mm (3.4 in)	52.1 mm (2.1 in)	65 years	68 of 100 (Major)
20 May 1984	Yanrey, AU	daily rain	118.0 mm (4.6 in)	85.5 mm (3.4 in)	59 years	65 of 100 (Major)
20 May 1984	Watheroo, AU	daily rain	59.7 mm (2.4 in)	46.7 mm (1.8 in)	59 years	65 of 100 (Major)
20 May 1984	Perangery, AU	daily rain	58.4 mm (2.3 in)	40.9 mm (1.6 in)	59 years	64 of 100 (Major)
20 May 1984	Neds Creek, AU	monthly rain	64.4 mm (2.5 in)	33.9 mm (1.3 in)	31 years	62 of 100 (Major)
20 May 1984	Murrum Station, AU	daily rain	30.0 mm (1.2 in)	23.9 mm (0.9 in)	73 years	62 of 100 (Major)
20 May 1984	Lugansk, UA	daily rain	30.4 mm (1.2 in)	17.4 mm (0.7 in)	80 years	60 of 100 (Major)
20 May 1984	Golden, US	daily rain	84.6 mm (3.3 in)	61.0 mm (2.4 in)	41 years	59 of 100 (Notable)
20 May 1984	Edina, US	daily rain	62.0 mm (2.4 in)	41.7 mm (1.6 in)	49 years	59 of 100 (Notable)
20 May 1984	Corsicana, US	daily rain	94.7 mm (3.7 in)	60.4 mm (2.4 in)	70 years	59 of 100 (Notable)
20 May 1984	Melrose, AU	monthly rain	70.1 mm (2.8 in)	26.7 mm (1.1 in)	20 years	57 of 100 (Notable)
20 May 1984	Orange, US	daily rain	164.6 mm (6.5 in)	115.1 mm (4.5 in)	29 years	56 of 100 (Notable)
20 May 1984	Mount Augustus, AU	daily rain	63.0 mm (2.5 in)	50.3 mm (2.0 in)	32 years	55 of 100 (Notable)
20 May 1984	Bunya Bunya, AU	daily rain	47.8 mm (1.9 in)	33.3 mm (1.3 in)	33 years	55 of 100 (Notable)
20 May 1984	Mt Sterling, US	daily rain	73.7 mm (2.9 in)	63.0 mm (2.5 in)	37 years	55 of 100 (Notable)
20 May 1984	Round Hill, AU	daily rain	35.0 mm (1.4 in)	23.3 mm (0.9 in)	59 years	54 of 100 (Notable)
20 May 1984	Quincy Dam 21, US	daily rain	71.4 mm (2.8 in)	58.4 mm (2.3 in)	34 years	54 of 100 (Notable)
20 May 1984	Salisbury, US	daily rain	69.9 mm (2.8 in)	56.7 mm (2.2 in)	37 years	54 of 100 (Notable)
20 May 1984	Miling, AU	daily rain	40.0 mm (1.6 in)	24.8 mm (1.0 in)	59 years	53 of 100 (Notable)
20 May 1984	Yuna, AU	daily rain	38.6 mm (1.5 in)	24.9 mm (1.0 in)	59 years	53 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 1984

Records set or tied on this calendar date in each year from 1802 to 1984. 1984 had 867 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 1984-05-20: 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 20	671
20 to 40	73
40 to 60	20
60 to 80	9
80 to 100	2
100 to 120	1